GMAB / Genmab A/S - Depositary Receipt (Common Stock) - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Genmab A/S - Depositary Receipt (Common Stock)
US ˙ NasdaqGS ˙ US3723032062

Mga Batayang Estadistika
LEI 529900MTJPDPE4MHJ122
CIK 1434265
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Genmab A/S - Depositary Receipt (Common Stock)
SEC Filings (Chronological Order)
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August 13, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

(Unauthorized English translation) (August 12, 2025) Articles of Association of Genmab A/S (CVR-nr.

August 13, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 12, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 41 Page 1/2 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; August 12, 2025 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 4,563 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are subs

August 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 7, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 39 Page 1/3 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Genmab Announces Phase 3 EPCORE® FL-1 Clinical Trial Met Dual Primary Endpoints in Patients with Relapsed/Refractory (R/R) Follicular Lymphoma (FL) Company Announcement COPENHAGEN, Denmark; August 7, 2025 •Epcoritamab in combination with rituximab and lenalidomide (R2) demonstrated statistically significant improvement in Overall Response Rate (ORR; 95.7%, p < 0.0001) and Progression-

August 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

July 16, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JULY 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JULY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

July 16, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 38 Page 1/1 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Genmab Announces Net Sales of DARZALEX® (daratumumab) for Second Quarter of 2025 Company Announcement •Net sales of DARZALEX® in the second quarter of 2025 totaled USD 3,539 million •Genmab receives royalties on worldwide net sales from Johnson & Johnson (J&J, legal entity Janssen Biotech, Inc.) COPENHAGEN, Denmark; July 16, 2025 – Genmab A/S (Nasdaq: GMAB) announced today that worldw

July 3, 2025 F-6

As filed with the U.S. Securities and Exchange Commission on July 3, 2025

As filed with the U.S. Securities and Exchange Commission on July 3, 2025 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 FOR DEPOSITARY SHARES EVIDENCED BY AMERICAN DEPOSITARY RECEIPTS GENMAB A/S (Exact name of issuer of deposited securities as specified in its charter) N/A (Translation

July 3, 2025 EX-99.(D)

July 3, 2025

Exhibit (d) July 3, 2025 JPMorgan Chase Bank, N.A., as Depositary 383 Madison Avenue, Floor 11 New York, NY 10179 Re: Registration Statement on Form F-6 – American Depositary Shares evidenced by American Depositary Receipts for deposited ordinary shares of Genmab A/S Ladies and Gentlemen: We have acted as counsel to JPMorgan Chase Bank, N.A., as depositary (the “Depositary”), in connection with th

July 3, 2025 EX-99.(A)

TABLE OF CONTENTS

Exhibit (a) TABLE OF CONTENTS Page PARTIES   1 RECITALS     1 Section 1. Certain Definitions 1 (a) ADR Register      1 (b) ADRs; Direct Registration ADRs      1 (c) ADS      2 (d) Beneficial Owner      2 (e) Commission      2 (f) Custodian      2 (g) Deliver, execute, issue et al.      2 (h) Delivery Order      2 (i) Deposited Securities      2 (j) Direct Registration System      3 (k) Holder     

June 30, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 30, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 23 – 26 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 23-Jun-2025 09:44:59 AM 5 1365.00 XCSE GENMAB A/S 23-Jun-2025 09:45:11 AM 3 1363.50 XCSE GENMAB A/S 23-Jun-2025 10:01:01 AM 1 1366.00 XCSE GENMAB A/S 23-Jun-2025 10:01:01 AM 4 1366.00 XCSE GENMAB A/S 23-Jun-2025 10:40:33 AM 5 1363.00 XCSE GENMAB A/S 23-Jun-2

June 30, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 37 Page 1/2 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Completion of Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 30, 2025 – Genmab A/S (Nasdaq: GMAB) announces that its share buy-back program has been completed on June 26, 2025. On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted S

June 23, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 23, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 16 - 20, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 16-Jun-2025 09:35:21 AM 5 1471.00 XCSE GENMAB A/S 16-Jun-2025 09:35:26 AM 5 1470.00 XCSE GENMAB A/S 16-Jun-2025 10:11:41 AM 6 1479.50 XCSE GENMAB A/S 16-Jun-2025 10:50:20 AM 5 1486.00 XCSE GENMAB A/S 16-Jun-2025 11:27:59 AM 6 1484.00 XCSE GENMAB A/S 16

June 23, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 23, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

June 18, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 18, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (June 17, 2025) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) 2 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Company are to enga

June 17, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 17, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 34 Page 1/2 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons Company Announcement COPENHAGEN, Denmark; June 17, 2025 – Genmab A/S (Nasdaq: GMAB) - In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in Ge

June 17, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 17, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 35 Page 1/2 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; June 17, 2025 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 32,117 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are subsc

June 16, 2025 EX-99.1(A)

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 9-13, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 10-Jun-2025 09:31:01 AM 5 1464.00 XCSE GENMAB A/S 10-Jun-2025 09:33:24 AM 4 1464.00 XCSE GENMAB A/S 10-Jun-2025 09:33:24 AM 1 1464.00 XCSE GENMAB A/S 10-Jun-2025 10:08:13 AM 5 1471.00 XCSE GENMAB A/S 10-Jun-2025 10:51:50 AM 7 1468.50 XCSE GENMAB A/S 10-Ju

June 16, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 16, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

June 16, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 16, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (June 12, 2025) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) 2 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Company are to enga

June 16, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 12, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 32 Page 1/2 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Grant of Restricted Stock Units and Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; June 12, 2025 – Genmab A/S (Nasdaq: GMAB) announced today that the Board of Directors decided to grant 3,320 restricted stock units and 3,636 warrants to employees of the Company and the Company's subsidiaries. Each restricted stock unit is awarded cost-free and provides the o

June 10, 2025 EX-99.1(A)

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 2-6, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 02-Jun-2025 10:00:42 AM 5 1432.50 XCSE GENMAB A/S 02-Jun-2025 10:00:42 AM 5 1431.50 XCSE GENMAB A/S 02-Jun-2025 10:35:18 AM 6 1422.00 XCSE GENMAB A/S 02-Jun-2025 11:15:59 AM 6 1417.00 XCSE GENMAB A/S 02-Jun-2025 12:04:44 PM 6 1420.00 XCSE GENMAB A/S 02-Jun

June 10, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 10, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

June 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 2, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 2, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

June 2, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 2, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 26 – 28, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 26-May-2025 09:41:37 AM 5 1375.50 XCSE GENMAB A/S 26-May-2025 09:42:03 AM 5 1374.00 XCSE GENMAB A/S 26-May-2025 10:08:10 AM 6 1381.00 XCSE GENMAB A/S 26-May-2025 10:50:37 AM 5 1379.50 XCSE GENMAB A/S 26-May-2025 11:37:40 AM 6 1377.00 XCSE GENMAB A/S 26-

May 27, 2025 EX-99.1(A)

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 19 – 23, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 19-May-2025 10:26:31 AM 34 1313.00 XCSE GENMAB A/S 19-May-2025 10:26:31 AM 49 1313.00 XCSE GENMAB A/S 19-May-2025 10:30:14 AM 81 1317.00 XCSE GENMAB A/S 19-May-2025 10:30:33 AM 70 1316.00 XCSE GENMAB A/S 19-May-2025 10:32:50 AM 37 1316.00 XCSE GENMAB A/

May 27, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 27, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 26, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

May 21, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 21, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (May 20, 2025) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) 2 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Company are to engag

May 20, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 28 Page 1/2 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; May 20, 2025 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 1,746 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are subscri

May 20, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 19, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement Company Announcement COPENHAGEN, Denmark; May 19, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back pr

May 19, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 12 – May 16, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 12-May-2025 09:30:02 AM 75 1211.00 XCSE GENMAB A/S 12-May-2025 09:30:11 AM 75 1214.50 TQEX GENMAB A/S 12-May-2025 09:30:11 AM 1 1214.50 TQEX GENMAB A/S 12-May-2025 09:30:11 AM 78 1214.50 CEUX GENMAB A/S 12-May-2025 09:30:11 AM 76 1214.50 AQEU GENMAB

May 19, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 12, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 5-9, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 05-May-2025 09:32:27 AM 85 1431.50 XCSE GENMAB A/S 05-May-2025 09:36:46 AM 54 1433.50 XCSE GENMAB A/S 05-May-2025 09:40:53 AM 41 1434.50 XCSE GENMAB A/S 05-May-2025 09:42:03 AM 31 1433.50 XCSE GENMAB A/S 05-May-2025 09:42:03 AM 4 1432.50 XCSE GENMAB A/S 05-

May 12, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 12, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

May 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 8, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 8, 2025 EX-99.1

2025 Guidance Mid-Point

99.1 Genmab Announces Financial Results for the First Quarter of 2025 May 8, 2025 Copenhagen, Denmark; Interim Report for the First Quarter Ended March 31, 2025 Highlights •EPKINLY® (epcoritamab) approved by the Japan Ministry of Health, Labour and Welfare (MHLW) for additional indication as a treatment for relapsed or refractory follicular lymphoma (FL) •Rinatabart sesutecan (Rina-S®) continues t

May 5, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 5, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to b

May 5, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 5, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 28 – May 2, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 28-Apr-2025 09:37:54 AM 91 1354.50 XCSE GENMAB A/S 28-Apr-2025 09:40:18 AM 83 1353.50 XCSE GENMAB A/S 28-Apr-2025 09:40:59 AM 95 1352.50 XCSE GENMAB A/S 28-Apr-2025 09:42:00 AM 44 1350.50 XCSE GENMAB A/S 28-Apr-2025 09:45:52 AM 31 1349.50 XCSE GENM

May 2, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 2, 2025 EX-99.1

Genmab A/S Carl Jacobsens Vej 30 2500 Valby, Denmark Tel: +45 7020 2728 www.genmab.com Company Announcement no. 23 Page 1/3 CVR no. 2102 3884 LEI Code 529900MTJPDPE4MHJ122

Exhibit 99.1 Genmab to Submit Supplemental Biologics License Application (sBLA) to U.S. Food and Drug Administration for Epcoritamab Plus Rituximab and Lenalidomide (R2) in Patients with Relapsed/Refractory Follicular Lymphoma (FL) Company Announcement •Decision to submit based on a positive overall response rate (ORR) (p-value < 0.0001), one of the dual primary endpoints in the Phase 3 EPCORE® FL

April 28, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 28, 2025 EX-99.1A

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification April 21 - 25, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 22-Apr-2025 10:49:10 AM 83 1289.50 XCSE GENMAB A/S 22-Apr-2025 10:51:27 AM 37 1289.50 XCSE GENMAB A/S 22-Apr-2025 10:51:44 AM 79 1288.50 XCSE GENMAB A/S 22-Apr-2025 10:52:59 AM 27 1291.00 XCSE GENMAB A/S 22-Apr-2025 10:53:20 AM 26 1290.00 XCSE GENMAB A/S

April 28, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 28, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected t

April 22, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 22, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected t

April 22, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 22, 2025 EX-99.1(A)

Time CET

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 14-Apr-2025 9:55:18 AM 78 1259.50 XCSE GENMAB A/S 14-Apr-2025 9:55:30 AM 82 1259.00 CEUX GENMAB A/S 14-Apr-2025 9:55:32 AM 86 1258.50 XCSE GENMAB A/S 14-Apr-2025 9:56:01 AM 76 1258.00 TQEX GENMAB A/S 14-Apr-2025 9:56:14 AM 74 1258.00 AQEU GENMAB

April 15, 2025 EX-99.1

Genmab Announces Net Sales of DARZALEX® (daratumumab) for First Quarter of 2025

Exhibit 99.1 Genmab Announces Net Sales of DARZALEX® (daratumumab) for First Quarter of 2025 Company Announcement ● Net sales of DARZALEX® in the first quarter of 2025 totaled USD 3,237 million ● Genmab receives royalties on worldwide net sales from Johnson & Johnson (J&J, legal entity Janssen Biotech, Inc.) COPENHAGEN, Denmark; April 15, 2025 – Genmab A/S (Nasdaq: GMAB) announced today that world

April 15, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 14, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 14, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 14, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected t

April 14, 2025 EX-99.1(A)

Time CET

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 7 – April 9, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 07-Apr-2025 09:35:27 AM 42 1177.00 XCSE GENMAB A/S 07-Apr-2025 09:35:27 AM 32 1177.00 XCSE GENMAB A/S 07-Apr-2025 09:35:27 AM 80 1177.00 AQEU GENMAB A/S 07-Apr-2025 09:35:27 AM 73 1177.00 CEUX GENMAB A/S 07-Apr-2025 09:35:33 AM 54 1177.00 XCSE GEN

April 14, 2025 EX-99.1(B)

GENMAB A/S

Exhibit 99.1(b) APPENDIX Share buy-back programme - Specification for April 10 – April 11, 2025 GENMAB A/S 10-Apr-2025 09:37:32 AM 1 1260.50 XCSE GENMAB A/S 10-Apr-2025 09:37:32 AM 87 1260.50 XCSE GENMAB A/S 10-Apr-2025 09:37:32 AM 78 1259.50 XCSE GENMAB A/S 10-Apr-2025 09:37:32 AM 86 1260.50 CEUX GENMAB A/S 10-Apr-2025 09:37:32 AM 74 1259.50 CEUX GENMAB A/S 10-Apr-2025 09:37:32 AM 76 1260.00 AQEU

April 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 10, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (March 12, 2025) - III Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 47 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the C

April 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 10, 2025 EX-99.1

Genmab A/S Share Capital Reduction

Exhibit 99.1 Genmab A/S Share Capital Reduction Company Announcement COPENHAGEN, Denmark; April 10, 2025 – Genmab A/S (Nasdaq: GMAB) At Genmab A/S’ Annual General Meeting on March 12, 2025, it was decided to reduce the Company’s share capital with nominally DKK 2,076,853 by cancellation of 2,076,853 of the Company’s holding of shares with a nominal value of DKK 1 each. The share capital reduction

April 7, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions In Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 7, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to

April 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 7, 2025 EX-99.1(B)

Time CET

Exhibit 99.1(b) APPENDIX Share buy-back programme - Specification for April 3 – April 4, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 03-Apr-2025 09:26:59 AM 71 1281.50 CEUX GENMAB A/S 03-Apr-2025 09:26:59 AM 8 1281.50 CEUX GENMAB A/S 03-Apr-2025 09:27:15 AM 21 1282.00 AQEU GENMAB A/S 03-Apr-2025 09:27:15 AM 55 1282.00 AQEU GENMAB A/S 03-Apr-2025 09:27:19 AM 19 1281.00 XCSE GENM

April 7, 2025 EX-99.1(A)

Time CET

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for March 31 – April 2, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 31-Mar-2025 09:42:24 AM 61 1345.50 TQEX GENMAB A/S 31-Mar-2025 09:42:24 AM 73 1345.50 CEUX GENMAB A/S 31-Mar-2025 09:42:25 AM 68 1345.50 XCSE GENMAB A/S 31-Mar-2025 09:42:25 AM 72 1345.00 AQEU GENMAB A/S 31-Mar-2025 09:42:44 AM 64 1344.50 XCSE GE

April 1, 2025 EX-99.1

1.

Exhibit 99.1 Transactions With Shares and Linked Securities in Genmab A/S Made by Managerial Employees and Their Closely Associated Persons Company Announcement COPENHAGEN, Denmark; April 1, 2025 – Genmab A/S (Nasdaq: GMAB) – In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in Ge

April 1, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 31, 2025 EX-99.1(A)

Time CET

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for March 26 – March 28, 2025 Issuer Date Time CET Quantity Price (DKK) Venue GENMAB A/S 26-Mar-25 9:30:18 AM 70 1337.00 XCSE GENMAB A/S 26-Mar-25 9:30:42 AM 42 1338.00 XCSE GENMAB A/S 26-Mar-25 9:30:42 AM 67 1338.00 CEUX GENMAB A/S 26-Mar-25 9:32:04 AM 56 1338.50 XCSE GENMAB A/S 26-Mar-25 9:32:04 AM 68 1339.50 XCSE GENMAB A/S 26-Ma

March 31, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 31, 2025 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in connection with share buy-back program Company Announcement COPENHAGEN, Denmark; March 31, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected t

March 25, 2025 EX-99.1

Genmab Announces Initiation of Share Buy-Back Program

Exhibit 99.1 Genmab Announces Initiation of Share Buy-Back Program Company Announcement ● Repurchase of up to 2.2 million shares with a maximum aggregate total value of DKK 4.0 billion ● Reduce the capital of Genmab and honor our commitments under the Restricted Stock Unit program ● Completion expected no later than July 10, 2025 COPENHAGEN, Denmark; March 25, 2025 – Genmab A/S (Nasdaq: GMAB) anno

March 25, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 24, 2025 EX-99.1

Genmab to Vigorously Defend Alleged Claims of Trade Secret Misappropriation by AbbVie Inc.

Exhibit 99.1 Genmab to Vigorously Defend Alleged Claims of Trade Secret Misappropriation by AbbVie Inc. Company Announcement ● AbbVie Inc. files complaint against Genmab in the U.S. District Court for the Western District of Washington (Seattle) ● Genmab categorically refutes allegations and will vigorously defend the company COPENHAGEN, Denmark; March 22, 2025 – Genmab A/S (Nasdaq: GMAB) announce

March 24, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 20, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 20, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

EX-3.1 2 tmb-20250320xex3d1.htm EX-3.1 Exhibit 3.1 (English translation of Articles of Association) (March 12, 2025) - II Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 47 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of

March 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 12, 2025 EX-99.1

Passing of Genmab A/S’ Annual General Meeting

Exhibit 99.1 Passing of Genmab A/S’ Annual General Meeting Company Announcement ● At Genmab A/S’ Annual General Meeting held today March 12, 2025, the Annual Report for 2024 was approved ● Discharge was given to the Board of Directors and the Executive Management and the year’s profit was carried forward ● The 2024 Compensation Report was approved ● Six members of the Board of Directors were re-el

March 12, 2025 EX-99.1

Constitution of the Board of Directors in Genmab A/S, Grant of Restricted Stock Units to Board Members and Employees and Grant of Warrants to Employees in Genmab

Exhibit 99.1 Constitution of the Board of Directors in Genmab A/S, Grant of Restricted Stock Units to Board Members and Employees and Grant of Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; March 12, 2025 – Genmab A/S (Nasdaq: GMAB) Following Genmab A/S’ Annual General Meeting held on March 12, 2025, the Company’s Board of Directors met to constitute itself. Ms. Deirdre

March 12, 2025 EX-99.2

1.

Exhibit 99.2 Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons Company Announcement COPENHAGEN, Denmark; March 12, 2025 – Genmab A/S (Nasdaq: GMAB) - In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in G

March 10, 2025 EX-99.1

Genmab Announces Johnson & Johnson Decision Regarding HexaBody

Exhibit 99.1 Genmab Announces Johnson & Johnson Decision Regarding HexaBody®-CD38 Company Announcement ● Johnson & Johnson has decided that it will not exercise its option to receive a worldwide license to develop, manufacture and commercialize HexaBody-CD38 ● Genmab will not pursue further clinical development of HexaBody-CD38 ● Data validates clinical potential of the HexaBody platform ● Genmab

March 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 6, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 6, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

(Unauthorized English translation) (February 28, 2025) Articles of Association of Genmab A/S (CVR-nr.

March 4, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 4, 2025 EX-99.1

Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons

Exhibit 99.1 Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons Company Announcement COPENHAGEN, Denmark; March 4, 2025 – Genmab A/S (Nasdaq: GMAB) - In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in Ge

February 28, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

February 28, 2025 EX-99.1

Grant of Restricted Stock Units to Management and Employees and Grant of Warrants to Employees in Genmab

Exhibit 99.1 Grant of Restricted Stock Units to Management and Employees and Grant of Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; February 28, 2025 – Genmab A/S (Nasdaq: GMAB) announced today that the Board decided to grant 614,676 restricted stock units to members of management and employees of the Company as well as the Company's subsidiaries and 517,191 warrants to

February 28, 2025 EX-99.2

1.

Exhibit 99.2 Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons Company Announcement COPENHAGEN, Denmark; February 28, 2025 – Genmab A/S (Nasdaq: GMAB) - In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made i

February 26, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (February 25, 2025) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Comp

February 26, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

February 25, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

February 25, 2025 EX-99.1

Capital Increase in Genmab as a Result of Employee Warrant Exercise

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; February 25, 2025 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 10,058 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are s

February 13, 2025 EX-99.1

ANNUAL GENERAL MEETING

Exhibit 99.1 Notice to Convene the Annual General Meeting of Genmab A/S Company Announcement ● Genmab A/S to hold Annual General Meeting on Wednesday March 12, 2025 COPENHAGEN, Denmark; February 13, 2025 – Genmab A/S (Nasdaq: GMAB) summons the Annual General Meeting on Wednesday, March 12, 2025, at 2:00 PM CET at the Copenhagen Marriott Hotel, Kalvebod Brygge 5, DK-1560 Copenhagen V, Denmark. The

February 13, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

February 12, 2025 EX-15.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.2 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-253519, 333-232693 and 333-262970) of Genmab A/S of our report dated February 14, 2024, except for the revisions in note 4.5, as to which the date is February 12, 2025 relating to the consolidated financial statements, which a

February 12, 2025 EX-11.1

[REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

Exhibit 11.1 INTERNAL RULES FOR THE MEMBERS OF THE BOARD OF DIRECTORS AND THE EXECUTIVE MANAGEMENT AND OTHER PERMANENT INSIDERS OF GENMAB A/S (CVR NO. 21032884) REGARDING THE PREVENTION OF INSIDER DEALING, TRADING WINDOWS, UNLAWFUL DISCLOSURE OF INSIDE INFORMATION, NOTIFICATION OF TRANSACTIONS AND GUIDELINES FOR THE COMPANY'S TRADE IN ITS OWN SECURITIES. 1. PURPOSES 1.1 The purposes of the followi

February 12, 2025 S-8

As filed with the Securities and Exchange Commission on February 12, 2025

As filed with the Securities and Exchange Commission on February 12, 2025 Registration No.

February 12, 2025 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ◻ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ⌧ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ◻ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURIT

February 12, 2025 EX-13.1

PRINCIPAL EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 13.1 PRINCIPAL EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Jan G. van de Winkel, President and Chief Executive Officer of Genmab A/S, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge: (1) The Annual Report on F

February 12, 2025 EX-FILING FEES

Calculation of Filing Fee Table Form S-8 (Form Type) GENMAB A/S (Exact Name of Registrant as Specified in its Charter)

EXHIBIT 107 Calculation of Filing Fee Table Form S-8 (Form Type) GENMAB A/S (Exact Name of Registrant as Specified in its Charter) Security Type Security Class Title(1) Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Ordinary shares, DKK 1 nominal value per share (“Ordinary Shares”)(1)(2) reserved for issuance under the Genmab A/S 2021 Restricted Stock Units Program Rule 457(c) and Rule 457(h) 800,000 $193.

February 12, 2025 EX-13.2

PRINCIPAL FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 13.2 PRINCIPAL FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Anthony Pagano, Executive Vice President and Chief Financial Officer of Genmab A/S, hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge: (1) The

February 12, 2025 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statement Nos. 333-232693, 333-253519, 333-262970 and 333-277273 on Form S-8 of our reports dated February 12, 2025, relating to the financial statements of Genmab A/S and the effectiveness of Genmab A/S’ internal control over financial reporting appearing in this Annu

February 12, 2025 EX-15.4

February 12, 2025

‌Exhibit 15.4 February 12, 2025 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by Genmab A/S (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to item 16F of Form 20-F of Genmab A/S dated February 12, 2025. We agree with the statements concerning our Firm contained the

February 12, 2025 EX-12.1

CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER

EXHIBIT 12.1 CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER I, Jan G. van de Winkel, certify that: 1. I have reviewed this annual report on Form 20-F of Genmab A/S; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were mad

February 12, 2025 EX-99.1A

Management’s Review 4 Our 2030 Vision 5 Chair’s Statement 7 Letter from the CEO 9 2024 at a Glance 10 Consolidated Key Figures 11 2025 Outlook 12 Our Strategy 13 Who We Are 14 Business Model 15 Value Chain 17 Research and Development Capabilities 19

Exhibit 99.1a 2024 Annual Report CVR No. 21 02 38 84 Genmab A/S Carl Jacobsens Vej 30 2500 Valby Denmark Leading Antibody Science for Better Futures Management’s Review 4 Our 2030 Vision 5 Chair’s Statement 7 Letter from the CEO 9 2024 at a Glance 10 Consolidated Key Figures 11 2025 Outlook 12 Our Strategy 13 Who We Are 14 Business Model 15 Value Chain 17 Research and Development Capabilities 19 B

February 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF FEBRUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

February 12, 2025 EX-99.1

* 2020 Operating Profit impacted by one-time AbbVie upfront payment.

Exhibit 99.1 GENMAB 2024 ANNUAL REPORT Table of Contents GENMAB 2024 ANNUAL REPORT Management’s Review Our 2030 Vision 1 Chair’s Statement 3 Letter from the CEO 4 2024 at a Glance 5 Consolidated Key Figures 8 2025 Outlook 10 Our Strategy 12 Who We Are 14 Business Model 15 Value Chain 15 Research and Development Capabilities 18 Bringing Our Own Innovative Medicines to Patients 19 Antibody Discovery

February 12, 2025 EX-12.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER

EXHIBIT 12.2 CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER I, Anthony Pagano, certify that: 1. I have reviewed this annual report on Form 20-F of Genmab A/S; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not

February 12, 2025 EX-11.2

INTERNAL RULES FOR THE EMPLOYEES OF GENMAB A/S (CVR NO. 21032884) AND ITS DIRECTLY AND INDIRECTLY OWNED SUBSIDIARIES REGARDING THE PREVENTION OF INSIDER DEALING, OPEN TRADING WINDOWS AND UNLAWFUL DISCLOSURE OF INSIDE INFORMATION

Exhibit 11.2 INTERNAL RULES FOR THE EMPLOYEES OF GENMAB A/S (CVR NO. 21032884) AND ITS DIRECTLY AND INDIRECTLY OWNED SUBSIDIARIES REGARDING THE PREVENTION OF INSIDER DEALING, OPEN TRADING WINDOWS AND UNLAWFUL DISCLOSURE OF INSIDE INFORMATION 1. PURPOSES 1.1 The purposes of the following rules are to prevent the employees of Genmab A/S (the "Company") and its directly and indirectly owned subsidiar

January 29, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JANUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JANUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

January 29, 2025 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (January 29, 2025) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 46 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Compa

January 23, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JANUARY 2025 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JANUARY 2025 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

January 23, 2025 EX-99.1

Grant of Restricted Stock Units and Warrants to Employees in Genmab

EX-99.1 2 tmb-20250123xex99d1.htm EX-99.1 Exhibit 99.1 Grant of Restricted Stock Units and Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; January 23, 2025 – Genmab A/S (Nasdaq: GMAB) announced today that the Board decided to grant 4,903 restricted stock units and 5,289 warrants to employees of the Company and the Company's subsidiaries. Each restricted stock unit is awar

January 22, 2025 EX-99.1

Genmab Announces Net Sales of DARZALEX

Exhibit 99.1 Genmab Announces Net Sales of DARZALEX® (daratumumab) for 2024 Company Announcement ● Net sales of DARZALEX® in 2024 totaled USD 11,670 million ● Genmab receives royalties on worldwide net sales from Johnson & Johnson (J&J, legal entity Janssen Biotech, Inc.) COPENHAGEN, Denmark; January 22, 2025 – Genmab A/S (Nasdaq: GMAB) announced today that worldwide net trade sales of DARZALEX® (

January 22, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JANUARY 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JANUARY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

December 4, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (December 4, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Compa

December 4, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF DECEMBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF DECEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

December 3, 2024 EX-99.1

1.

Exhibit 99.1 Transactions With Shares and Linked Securities in Genmab A/S Made by Managerial Employees and Their Closely Associated Persons Company Announcement COPENHAGEN, Denmark; December 3, 2024 – Genmab A/S (Nasdaq: GMAB) – In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in

December 3, 2024 EX-99.1

Capital Increase in Genmab as a Result of Employee Warrant Exercise

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; December 3, 2024 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 10,355 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are su

December 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF DECEMBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF DECEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

December 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF DECEMBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF DECEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

November 27, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (November 21, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Comp

November 27, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF NOVEMBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF NOVEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

November 21, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF NOVEMBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF NOVEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

November 21, 2024 EX-99.1

Grant of Restricted Stock Units and Warrants to Employees in Genmab

Exhibit 99.1 Grant of Restricted Stock Units and Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; November 21, 2024 – Genmab A/S (Nasdaq: GMAB) announced today that the Board decided to grant 10,273 restricted stock units and 10,853 warrants to employees of the Company and the Company's subsidiaries. Each restricted stock unit is awarded cost-free and provides the owner wi

November 6, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF NOVEMBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF NOVEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exec

November 6, 2024 EX-99.1

Revised Guidance

Exhibit 99.1 Genmab Announces Financial Results for the First Nine Months of 2024 November 6, 2024 Copenhagen, Denmark; Interim Report for the First Nine Months Ended September 30, 2024 Highlights ● European Commission (EC) granted conditional marketing authorization for TEPKINLY® (epcoritamab) as a monotherapy for the treatment of adult patients with relapsed or refractory follicular lymphoma (FL

October 15, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

October 15, 2024 EX-99.1

Genmab Announces Net Sales of DARZALEX

Exhibit 99.1 Genmab Announces Net Sales of DARZALEX® (daratumumab) for Third Quarter of 2024 Company Announcement ● Net sales of DARZALEX® in the third quarter of 2024 totaled USD 3,016 million ● Genmab receives royalties on worldwide net sales from Janssen Biotech, Inc. (Janssen) COPENHAGEN, Denmark; October 15, 2024 – Genmab A/S (Nasdaq: GMAB) announced today that worldwide net trade sales of DA

October 4, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

October 4, 2024 EX-99.1

Major shareholder announcement for Genmab A/S

Exhibit 99.1 Major shareholder announcement for Genmab A/S Company Announcement ● Major shareholder announcement for Genmab A/S COPENHAGEN, Denmark; October 4, 2024 – Genmab A/S (Nasdaq: GMAB) announces under reference to Section 30 of the Danish Capital Markets Act that Baillie Gifford & Co has informed us that, as of October 3, 2024, Baillie Gifford & Co held the voting rights to 3,301,530 share

October 1, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (September 26, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Com

October 1, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2024 COMMISSION FILE NUMBER 001-38976

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF OCTOBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

September 26, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF SEPTEMBER 2024 COMMISSION FILE NUMBER 001-3897

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF SEPTEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exe

September 26, 2024 EX-99.1

Grant of Restricted Stock Units and Warrants to Employees in Genmab

Exhibit 99.1 Grant of Restricted Stock Units and Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; September 26, 2024 – Genmab A/S (Nasdaq: GMAB) announced today that the Board decided to grant 23,954 restricted stock units and 13,915 warrants to employees of the Company and the Company's subsidiaries. Each restricted stock unit is awarded cost-free and provides the owner w

September 11, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (September 10, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Com

September 11, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF SEPTEMBER 2024 COMMISSION FILE NUMBER 001-3897

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF SEPTEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exe

September 10, 2024 EX-99.1

Capital Increase in Genmab as a Result of Employee Warrant Exercise

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; September 10, 2024 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 11,729 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are

September 10, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF SEPTEMBER 2024 COMMISSION FILE NUMBER 001-3897

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF SEPTEMBER 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal exe

August 21, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 21, 2024 EX-99.1

(epcoritamab) Receives Second European Commission Approval for the Treatment of Adults with Relapsed/Refractory Follicular Lymphoma

Exhibit 99.1 TEPKINLY® (epcoritamab) Receives Second European Commission Approval for the Treatment of Adults with Relapsed/Refractory Follicular Lymphoma Company Announcement ● TEPKINLY is the first and only subcutaneous bispecific antibody approved as a monotherapy in the European Union to treat both relapsed or refractory (R/R) follicular lymphoma (FL) and R/R diffuse large B-cell lymphoma (DLB

August 14, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 14, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (August 14, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Compan

August 13, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 13, 2024 EX-99.1

Capital Increase in Genmab as a Result of Employee Warrant Exercise

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; August 13, 2024 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 28,193 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are sub

August 13, 2024 EX-99.2

1.

Exhibit 99.2 Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons Company Announcement COPENHAGEN, Denmark; August 13, 2024 – Genmab A/S (Nasdaq: GMAB) - In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in

August 8, 2024 EX-99.1

ex. Acquisition and Integration related charges

Exhibit 99.1 Genmab Announces Financial Results for the First Half of 2024 August 8, 2024 Copenhagen, Denmark; Interim Report for the First Six Months Ended June 30, 2024 Highlights ● Completed acquisition of ProfoundBio Inc (ProfoundBio), granting Genmab worldwide rights to three candidates in clinical development, including rinatabart sesutecan (Rina-S), plus ProfoundBio’s novel antibody-drug co

August 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 8, 2024 EX-99.1

ex. Acquisition and Integration related charges

Exhibit 99.1 Genmab Updates 2024 Financial Guidance Company Announcement ● Genmab updates its 2024 financial guidance ● Increase in revenue driven by higher royalties and reimbursement revenue ● Increase in operating profit excluding acquisition and integration charges, driven by higher revenue and focused investments COPENHAGEN, Denmark; August 8, 2024 – Genmab A/S (Nasdaq: GMAB) announced today

August 5, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF AUGUST 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execut

August 5, 2024 EX-99.1

Genmab Takes Full Control of Acasunlimab Development Program

Exhibit 99.1 Genmab Takes Full Control of Acasunlimab Development Program Company Announcement ● Genmab to assume sole responsibility for the continued development and potential commercialization of acasunlimab ● BioNTech has opted not to participate in the further development of the acasunlimab program under the parties’ existing collaboration agreement ● The overall collaboration between the com

July 17, 2024 EX-99.1

Genmab Announces Net Sales of DARZALEX® (daratumumab) for Second Quarter of 2024

Exhibit 99.1 Genmab Announces Net Sales of DARZALEX® (daratumumab) for Second Quarter of 2024 Company Announcement ● Net sales of DARZALEX® in the second quarter of 2024 totaled USD 2,878 million ● Genmab receives royalties on worldwide net sales from Janssen Biotech, Inc. (Janssen) COPENHAGEN, Denmark; July 17, 2024 – Genmab A/S (Nasdaq: GMAB) announced today that worldwide net trade sales of DAR

July 17, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JULY 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JULY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 28, 2024 EX-99.1

Epcoritamab (TEPKINLY

Exhibit 99.1 Epcoritamab (TEPKINLY®) Receives Positive CHMP Opinion for the Treatment of Adults with Relapsed/ Refractory Follicular Lymphoma Company Announcement ● Positive CHMP opinion based on results from the Phase 1/2 EPCORE® NHL-1 study ● FL is the second most common type of NHL and accounts for approximately 20-30 percent of all global cases ● If approved, epcoritamab (TEPKINLY®) would beco

June 28, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 27, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 24 – June 26, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 24/06/2024 9:07:21 AM 1,804.0000 70 XCSE Genmab A/S 24/06/2024 9:07:21 AM 1,804.0000 33 XCSE Genmab A/S 24/06/2024 9:07:21 AM 1,804.0000 33 XCSE Genmab A/S 24/06/2024 9:07:21 AM 1,804.0000 70 XCSE Genmab A/S 24/06/2024 9:07:21 AM 1,804.0000 33 XC

June 27, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 27, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 27, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Completion of Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 27, 2024 – Genmab A/S (Nasdaq: GMAB) announces that its share buy-back program has been completed on June 26, 2024. On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program was expected to be completed

June 27, 2024 EX-99.1

(epcoritamab-bysp) Approved by U.S. FDA for Patients with Relapsed or Refractory (R/R) Follicular Lymphoma (FL)

Exhibit 99.1 EPKINLY® (epcoritamab-bysp) Approved by U.S. FDA for Patients with Relapsed or Refractory (R/R) Follicular Lymphoma (FL) Company Announcement ● Approval based on results from Phase 1/2 EPCORE® NHL-1 study, which demonstrated durable, clinically meaningful treatment responses in patients with challenging-to-treat R/R FL ● EPKINLY offers an off-the-shelf, T-cell engaging treatment optio

June 24, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 24, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 24, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

June 24, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 17 – June 21, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 17/06/2024 9:03:30 AM 1,826.0000 22 XCSE Genmab A/S 17/06/2024 9:03:30 AM 1,826.0000 24 XCSE Genmab A/S 17/06/2024 9:03:30 AM 1,826.0000 22 XCSE Genmab A/S 17/06/2024 9:03:30 AM 1,826.0000 24 XCSE Genmab A/S 17/06/2024 9:03:30 AM 1,826.0000 53 XC

June 20, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 20, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (June 18, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Company

June 18, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 10 – June 14, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 10/06/2024 9:10:44 AM 1,915.0000 16 AQEU Genmab A/S 10/06/2024 9:10:44 AM 1,915.0000 10 AQEU Genmab A/S 10/06/2024 9:10:44 AM 1,915.0000 39 AQEU Genmab A/S 10/06/2024 9:10:44 AM 1,914.5000 32 XCSE Genmab A/S 10/06/2024 9:10:44 AM 1,914.5000 34 XC

June 18, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 18, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

June 18, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 18, 2024 EX-99.1

Capital Increase in Genmab as a Result of Employee Warrant Exercise

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; June 18, 2024 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 6,986 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are subscr

June 18, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 17, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (June12, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Company a

June 17, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 12, 2024 EX-99.1

Grant of Restricted Stock Units and Warrants to Employees in Genmab

Exhibit 99.1 Grant of Restricted Stock Units and Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; June 12, 2024 – Genmab A/S (Nasdaq: GMAB) announced today that the Board decided to grant 15,711 restricted stock units and 16,052 warrants to employees of the Company and the Company's subsidiaries. Each restricted stock unit is awarded cost-free and provides the owner with a

June 12, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 11, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 11, 2024 EX-99.1

1.

Exhibit 99.1 Transactions with shares and linked securities in Genmab A/S made by managerial employees and their closely associated persons Company Announcement COPENHAGEN, Denmark; June 11, 2024 – Genmab A/S (Nasdaq: GMAB) - In accordance with Article 19 of Regulation No. 596/2014 on Market Abuse and Implementing Regulation 2016/523, this document discloses the data of the transactions made in Ge

June 10, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 10, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

June 10, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 10, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for June 3 – June 7, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 03/06/2024 3:00:28 PM 1,948.5000 35 CEUX Genmab A/S 03/06/2024 3:04:13 PM 1,944.5000 19 TQEX Genmab A/S 03/06/2024 3:04:13 PM 1,944.5000 18 TQEX Genmab A/S 03/06/2024 3:04:13 PM 1,944.0000 38 XCSE Genmab A/S 03/06/2024 3:18:58 PM 1,950.0000 34 XCSE

June 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Gen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF JUNE 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executiv

June 3, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 27 – May 29, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 27/05/2024 09:01:38 1,914.5000 7 XCSE Genmab A/S 27/05/2024 09:01:38 1,914.5000 16 XCSE Genmab A/S 27/05/2024 09:02:46 1,915.0000 7 XCSE Genmab A/S 27/05/2024 09:02:46 1,915.0000 45 XCSE Genmab A/S 27/05/2024 09:02:46 1,915.0000 8 CEUX Genmab A/S 2

June 3, 2024 EX-99.1(B)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 30 – May 31, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 30/05/2024 09:02:03 1,922.0000 24 XCSE Genmab A/S 30/05/2024 09:02:03 1,922.0000 24 XCSE Genmab A/S 30/05/2024 09:02:03 1,922.0000 18 XCSE Genmab A/S 30/05/2024 09:02:03 1,922.0000 22 CEUX Genmab A/S 30/05/2024 09:02:03 1,922.0000 22 CEUX Genmab A/

June 3, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; June 3, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions w

May 28, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 27, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions w

May 28, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 28, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 20 – May 24, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 21/05/2024 09:28:05 2,026.0000 39 XCSE Genmab A/S 21/05/2024 09:28:05 2,025.0000 38 CEUX Genmab A/S 21/05/2024 09:28:05 2,025.0000 2 CEUX Genmab A/S 21/05/2024 09:37:02 2,020.0000 6 XCSE Genmab A/S 21/05/2024 09:37:02 2,020.0000 29 XCSE Genmab A/S

May 21, 2024 6-K

zzz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976

zzz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal execu

May 21, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 21, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions w

May 21, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 21, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 13 – May 17, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue GENMAB A/S 13/05/2024 09:00:01 2,002.00 53 XCSE GENMAB A/S 13/05/2024 09:00:01 2,002.00 53 XCSE GENMAB A/S 13/05/2024 09:00:01 2,002.00 9 XCSE GENMAB A/S 13/05/2024 09:01:42 2,001.00 36 XCSE GENMAB A/S 13/05/2024 09:02:02 2,000.00 39 XCSE GENMAB A/S 13/05/202

May 21, 2024 EX-99.1

Genmab Completes Acquisition of ProfoundBio

Exhibit 99.1 Genmab Completes Acquisition of ProfoundBio Company Announcement ● Genmab has completed acquisition of ProfoundBio for USD 1.8 billion in cash ● Acquisition gives Genmab worldwide rights to three candidates in clinical development, including rinatabart sesutecan (Rina-S), plus ProfoundBio’s novel antibody-drug conjugate technology platforms COPENHAGEN, Denmark; May 21, 2024 – Genmab A

May 13, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for May 6 – May 10, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue GENMAB A/S 05/07/2024 14:23:31 1,998.00 35 CEUX GENMAB A/S 05/08/2024 9:01:56 2,002.00 23 TQEX GENMAB A/S 05/08/2024 9:01:56 2,002.00 14 TQEX GENMAB A/S 05/08/2024 10:21:50 2,016.00 13 CEUX GENMAB A/S 05/08/2024 10:21:50 2,016.00 6 CEUX GENMAB A/S 05/08/2024 1

May 13, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 13, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions w

May 13, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 8, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (May 7, 2024) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 45 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Company ar

May 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 7, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 7, 2024 EX-99.1

Capital Increase in Genmab as a Result of Employee Warrant Exercise

Exhibit 99.1 Capital Increase in Genmab as a Result of Employee Warrant Exercise Company Announcement COPENHAGEN, Denmark; May 7, 2024 – Genmab A/S (Nasdaq: GMAB) will increase its share capital by 6,959 shares as a consequence of the exercise of employee warrants. The increase is effected without any preemption rights for the existing shareholders of the company or others. The shares are subscrib

May 6, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; May 6, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions we

May 6, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

May 6, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 29 – May 3, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue Genmab A/S 29/04/2024 9:00:03 AM 1,959.00 45 XCSE Genmab A/S 29/04/2024 9:00:03 AM 1,959.00 27 XCSE Genmab A/S 29/04/2024 9:00:03 AM 1,959.00 12 XCSE Genmab A/S 29/04/2024 9:00:05 AM 1,959.00 4 XCSE Genmab A/S 29/04/2024 9:00:05 AM 1,959.00 3 XCSE Genmab A/S

May 2, 2024 EX-99.1

Three Months Ended

Exhibit 99.1 Genmab Announces Financial Results for the First Quarter of 2024 May 2, 2024 Copenhagen, Denmark; Interim Report for the First Quarter Ended March 31, 2024 Highlights ● The U.S. Food and Drug Administration (U.S. FDA) granted Priority Review for the supplemental Biologics License Application (sBLA) for EPKINLY® (epcoritamab-bysp) for the treatment of adult patients with relapsed or re

May 2, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MAY 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executive

April 30, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 30, 2024 EX-99.1

(tisotumab vedotin-tftv) Receives U.S. FDA Approval to Treat Recurrent or Metastatic Cervical Cancer

Exhibit 99.1 TIVDAK® (tisotumab vedotin-tftv) Receives U.S. FDA Approval to Treat Recurrent or Metastatic Cervical Cancer Company Announcement ● Full approval based on global Phase 3 study demonstrating overall survival benefit of TIVDAK compared to chemotherapy ● TIVDAK is the first antibody-drug conjugate in this patient population to have positive overall survival data COPENHAGEN, Denmark; Apri

April 29, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-Back Program Company Announcement COPENHAGEN, Denmark; April 29, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

April 29, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 22 – 26, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue GENMAB A/S 22/04/2024 9:03:08 AM 2,011.00 33 XCSE GENMAB A/S 22/04/2024 9:05:55 AM 2,014.00 13 XCSE GENMAB A/S 22/04/2024 9:05:55 AM 2,014.00 112 XCSE GENMAB A/S 22/04/2024 9:05:55 AM 2,014.00 16 AQEU GENMAB A/S 22/04/2024 9:05:55 AM 2,014.00 89 CEUX GENMAB A/S

April 29, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 22, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 22, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April15, – April 19, 2024 Issuer Date Time CEST Price (DKK) Quantity Venue GENMAB A/S 15/04/2024 9:01:58 AM 2,089.00 23 XCSE GENMAB A/S 15/04/2024 9:01:58 AM 2,089.00 23 XCSE GENMAB A/S 15/04/2024 9:01:58 AM 2,089.00 16 XCSE GENMAB A/S 15/04/2024 9:01:58 AM 2,089.00 23 XCSE GENMAB A/S 15/04/2024 9:01:58 AM 2,089.00 9 XCSE GENMAB

April 22, 2024 EX-99.1

Transactions in Connection with Share Buy-back Program Genmab

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Genmab Company Announcement COPENHAGEN, Denmark; April 22, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following trans

April 16, 2024 EX-99.1

Genmab Announces Net Sales of DARZALEX

Genmab Announces Net Sales of DARZALEX® (daratumumab) for First Quarter of 2024 Company Announcement ● Net sales of DARZALEX® in the first quarter of 2024 totaled USD 2,692 million ● Genmab receives royalties on worldwide net sales from Janssen Biotech, Inc.

April 16, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 15, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 15, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 15, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

April 15, 2024 EX-99.1(A)

Volume

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 8 – April 12, 2024 Volume Price Venue Date Time CEST 21 2,060.00 XCSE 08/04/2024 09:02:14 21 2,060.00 XCSE 08/04/2024 09:02:14 54 2,060.00 XCSE 08/04/2024 09:02:14 24 2,059.00 XCSE 08/04/2024 09:02:14 18 2,059.00 XCSE 08/04/2024 09:02:14 21 2,060.00 XCSE 08/04/2024 09:02:14 21 2,060.00 XCSE 08/04/2024 09:02:14 21 2,060.00

April 8, 2024 EX-99.1(A)

Time CEST

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for April 1 – April 5, 2024 Volume Price Venue Time CEST 4 2,105.00 TQEX 02/04/2024 1:00:00 3 2,107.00 AQEU 02/04/2024 1:00:00 18 2,107.00 CEUX 02/04/2024 1:00:00 4 2,107.00 TQEX 02/04/2024 1:00:00 3 2,107.00 AQEU 02/04/2024 1:00:00 3 2,107.00 AQEU 02/04/2024 1:00:00 18 2,107.00 CEUX 02/04/2024 1:00:00 18 2,107.00 CEUX 02/04/2024 1:

April 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 8, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 8, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

April 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 3, 2024 EX-99.1

Genmab to Broaden and Strengthen Oncology Portfolio with Acquisition of ProfoundBio

Exhibit 99.1 Genmab to Broaden and Strengthen Oncology Portfolio with Acquisition of ProfoundBio Company Announcement ● Genmab to acquire ProfoundBio for USD 1.8 billion in cash ● Acquisition will give Genmab worldwide rights to three candidates in clinical development, including rinatabart sesutecan (Rina-S), plus ProfoundBio’s novel antibody-drug conjugate (ADC) technology platforms ● Rina-S is

April 2, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF APRIL 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

April 2, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; April 2, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

April 2, 2024 EX-99.1(A)

Time CET

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for March 25 – March 29, 2024 Volume Price Venue Time CET 13 2,054.0000 XCSE 25/03/2024 09:00:13 42 2,054.0000 CEUX 25/03/2024 09:00:13 74 2,054.0000 XCSE 25/03/2024 09:00:13 42 2,054.0000 CEUX 25/03/2024 09:00:13 1 2,054.0000 CEUX 25/03/2024 09:00:13 23 2,064.0000 XCSE 25/03/2024 09:05:34 23 2,064.0000 XCSE 25/03/2024 09:05:34 23 2

March 25, 2024 EX-99.1

Trading Platform

Exhibit 99.1 Transactions in Connection with Share Buy-back Program Company Announcement COPENHAGEN, Denmark; March 25, 2024 – Genmab A/S (Nasdaq: GMAB). On March 15, 2024, Genmab announced the initiation of a share buy-back program to repurchase up to DKK 3.5 billion worth of shares. The share buy-back program is expected to be completed no later than December 16, 2024. The following transactions

March 25, 2024 EX-99.1(A)

Time CET

Exhibit 99.1(a) APPENDIX Share buyback program - Specification for March 18-22, 2024 Volume Price Venue Time CET 20 2065.00 XCSE 18/03/2024 09:02:21 29 2065.00 XCSE 18/03/2024 09:02:21 29 2065.00 XCSE 18/03/2024 09:02:21 29 2065.00 XCSE 18/03/2024 09:02:21 3 2064.00 AQEU 18/03/2024 09:02:36 3 2064.00 AQEU 18/03/2024 09:02:36 3 2064.00 AQEU 18/03/2024 09:02:36 3 2064.00 AQEU 18/03/2024 09:02:36 3 2

March 25, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 21, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 21, 2024 EX-3.1

Articles of Association Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498)

Exhibit 3.1 (English translation of Articles of Association) (March 13, 2024 - II) Articles of Association Of Genmab A/S (CVR-nr. 21023884 Formerly A/S registration no.: 248.498) Page 2 of 61 Name, Registered Office, Objects and Group Language § 1. The name of the Company is Genmab A/S. § 2. The registered office of the Company shall be in the municipality of Copenhagen. § 3. The objects of the Co

March 18, 2024 EX-99.1

Completion of share buy-back program

Exhibit 99.1 Completion of share buy-back program Company Announcement COPENHAGEN, Denmark; March 18, 2024 – Genmab A/S (Nasdaq: GMAB) announces that its share buy-back program has been completed on March 15, 2024 On February 14, 2024, Genmab announced the initiation of a share buy-back program to honor our commitments under our Restricted Stock Units program. The share buy-back program was expect

March 18, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 18, 2024 EX-99.1(A)

1

Exhibit 99.1(a) APPENDIX Share buy-back programme - Specification for March 11 – March 15, 2024 Volume Price Venue Time CET 13 2071 XCSE 20240311 9:00:28.336000 13 2066 XCSE 20240311 9:00:30.390000 13 2064 XCSE 20240311 9:00:46.133000 13 2061 XCSE 20240311 9:01:04.163000 13 2064 XCSE 20240311 9:01:42.887000 14 2069 XCSE 20240311 9:02:15.678000 13 2069 XCSE 20240311 9:02:23.489000 13 2068 XCSE 2024

March 15, 2024 EX-99.1

Genmab Announces Initiation of Share Buy-Back Program

Exhibit 99.1 Genmab Announces Initiation of Share Buy-Back Program Company Announcement ● Repurchase of up to DKK 3.5 billion worth of shares ● Completion expected no later than December 16, 2024 COPENHAGEN, Denmark; March 15, 2024 – Genmab A/S (Nasdaq: GMAB) announced today that it is initiating a share buy-back program. The share buy-back program will be undertaken on the terms set out below and

March 15, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Ge

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE MONTH OF MARCH 2024 COMMISSION FILE NUMBER 001-38976 Genmab A/S (Exact name of Registrant as specified in its charter) Carl Jacobsens Vej 30 2500 Valby Denmark +45 70 20 27 28 (Address of principal executi

March 13, 2024 EX-99.1

Constitution of the Board of Directors in Genmab A/S, Grant of Restricted Stock Units to Board Members and Employees and Grant of Warrants to Employees in Genmab

Exhibit 99.1 Constitution of the Board of Directors in Genmab A/S, Grant of Restricted Stock Units to Board Members and Employees and Grant of Warrants to Employees in Genmab Company Announcement COPENHAGEN, Denmark; March 13, 2024 – Genmab A/S (Nasdaq: GMAB) Following Genmab A/S’ Annual General Meeting held on March 13, 2024, the Company’s Board of Directors met to constitute itself. Ms. Deirdre

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