IDCC / InterDigital, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

InterDigital, Inc.
US ˙ NasdaqGS ˙ US45867G1013

Mga Batayang Estadistika
LEI 529900HQAUTC3VI47G64
CIK 1405495
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 InterDigital, Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
July 31, 2025 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2025 Samsung arbitration decision and new HP license agreement drive Q2 results, exceeding outlook Annualized recurring revenue1, at all-time high of $553 million, up 44% YoY Company raises

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2025 Samsung arbitration decision and new HP license agreement drive Q2 results, exceeding outlook Annualized recurring revenue1, at all-time high of $553 million, up 44% YoY Company raises full year 2025 revenue guidance by $110 million WILMINGTON, Del.

July 31, 2025 EX-10.2

2025 Stock Incentive Plan, Form of Agreement for Restricted Stock Units (Time Based Award)

EXHIBIT 10.2 INTERDIGITAL, INC. TERM SHEET FOR RESTRICTED STOCK UNITS (Time-Based Award) InterDigital, Inc. (the “Company”), hereby grants to the Participant named below the number of Restricted Stock Units specified below (the “Award”), upon the terms and subject to the conditions set forth in this Term Sheet for Restricted Stock Units (the “Term Sheet”), the Standard Terms and Conditions of Rest

July 31, 2025 EX-10.3

2025 Stock Incentive Plan, Form of Agreement for Restricted Stock Units (Non-Employee Directors)

EXHIBIT 10.3 INTERDIGITAL, INC. TERM SHEET FOR RESTRICTED STOCK UNITS (Non-Employee Directors) InterDigital, Inc. (the “Company”), hereby grants to the Participant named below the number of Restricted Stock Units specified below (the “Award”), upon the terms and subject to the conditions set forth in this Term Sheet for Restricted Stock Units (the “Term Sheet”), the Standard Terms and Conditions o

July 31, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

July 31, 2025 EX-99.2

1 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act, including but not limited to statements related to our outlook for Q2 and full year 2025, and other

supplementalmaterialsq22 1 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act, including but not limited to statements related to our outlook for Q2 and full year 2025, and other financial and business goals.

July 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2025 INTERDIGITAL, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2025 INTERDIGITAL, INC.

July 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 28, 2025 INTERDIGITAL, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 28, 2025 INTERDIGITAL, INC.

June 18, 2025 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 o TRANSITION REPORT PURSUANT TO SECTION 15(d)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 16, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 11, 2025 INTERDIGITAL, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 11, 2025 INTERDIGITAL, INC.

June 11, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) InterDigital, Inc.

June 11, 2025 S-8

As filed with the Securities and Exchange Commission on June 11, 2025

As filed with the Securities and Exchange Commission on June 11, 2025 Registration No.

June 11, 2025 EX-10.1

InterDigital 2025 Equity Incentive Plan

EXHIBIT 10.1 INTERDIGITAL, INC. 2025 EQUITY INCENTIVE PLAN 1. Purposes of the Plan. The purposes of this Plan are: •to attract and retain the best available personnel, •to provide additional incentive to Employees, Directors and Consultants, and •to promote the success of the Company’s business. The Plan permits the grant of Incentive Stock Options, Nonstatutory Stock Options, Restricted Stock, Re

May 2, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 1, 2025 INTERDIGITAL, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 1, 2025 INTERDIGITAL, INC.

May 1, 2025 EX-99.2

1 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act, including but not limited to statements related to our outlook for Q2 and full year 2025, and other

1 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act, including but not limited to statements related to our outlook for Q2 and full year 2025, and other financial and business goals.

May 1, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 1, 2025 INTERDIGITAL, INC.

May 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

May 1, 2025 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2025 Revenue, Adjusted EBITDA2 and EPS above top end of guidance All-time record annualized recurring revenue4, up 30% YoY Company reaffirms full year 2025 guidance

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2025 Revenue, Adjusted EBITDA2 and EPS above top end of guidance All-time record annualized recurring revenue4, up 30% YoY Company reaffirms full year 2025 guidance WILMINGTON, DE.

May 1, 2025 EX-10.1

mended and Restated Stock Ownership Guidelines for Directors and Executive Officers

EXHIBIT 10.1 Stock Ownership Guidelines for Directors and Executive Officers The Board of Directors of InterDigital, Inc. (the “InterDigital”) believes it is the best interest of InterDigital and its stockholders to align the financial interests of InterDigital executive officers and non-management directors of InterDigital with those of stockholders. Non-management Directors and Executive officer

April 25, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitt

April 25, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant  ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rul

April 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 4, 2025 INTERDIGITAL, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 4, 2025 INTERDIGITAL, INC.

February 6, 2025 EX-99.2

I N N O V A T I N G T O D A Y E M P O W E R I N G T O M O R R O W TM Fourth Quarter 2024 Results February 6, 2025 2/6/2025©2025 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-lookin

I N N O V A T I N G T O D A Y E M P O W E R I N G T O M O R R O W TM Fourth Quarter 2024 Results February 6, 2025 2/6/2025©2025 InterDigital, Inc.

February 6, 2025 EX-21

Subsidiaries of InterDigital.

EXHIBIT 21 SUBSIDIARIES OF INTERDIGITAL, INC. Subsidiary Jurisdiction / State of Incorporation or Organization DRNC Holdings, Inc. Delaware InterDigital Administrative Solutions, Inc. Pennsylvania InterDigital Belgium, LLC Delaware InterDigital Canada Ltee. Delaware InterDigital Capital, Inc. Delaware InterDigital CE Intermediate, SAS France InterDigital CE Patent Holdings, SAS France InterDigital

February 6, 2025 EX-19

nsider Trading Policy

EXHIBIT 19 InterDigital, Inc. Insider Trading Policy Introduction The Board of Directors (the "Board") of InterDigital, Inc. has adopted the following policy (this "Policy") regarding trading in securities by its directors, officers, employees and consultants. This Policy is designed to promote compliance with certain securities laws and to protect the Company and you from the serious liabilities

February 6, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 6, 2025 INTERDIGITAL, INC.

February 6, 2025 EX-99.1

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Strong business performance drove record revenue and EPS in 2024. Increased quarterly dividend by 33%

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Strong business performance drove record revenue and EPS in 2024.

February 6, 2025 EX-10.27

Amended Compensation Program for Non-Management Directors

EXHIBIT 10.27 INTERDIGITAL, INC. Compensation Program for Non-Management Directors Base Annual Board Retainer: $65,000 Chairman of the Board: $75,000 Audit Committee Chair: $30,000 Compensation Committee Chair: $25,000 Investment Committee Chair: $15,000 Nominating and Corporate Governance Committee Chair: $15,000 Audit Committee Members: $12,000 Compensation Committee Members: $10,000 Investment

February 6, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ 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 SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-33579 INTERDIGITAL, INC.

November 14, 2024 SC 13G

IDCC / InterDigital, Inc. / Boston Partners - BOSTON PARTNERS Passive Investment

SC 13G 1 idcc111424.htm BOSTON PARTNERS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 45867G101 (CUSIP Number) September 30, 2024 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

October 31, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 31, 2024 INTERDIGITAL, INC.

October 31, 2024 EX-99.2

I N N O V A T I N G T O D A Y E M P O W E R I N G T O M O R R O W TM Third Quarter 2024 Results October 31, 2024 10/31/2024©2024 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-looki

I N N O V A T I N G T O D A Y E M P O W E R I N G T O M O R R O W TM Third Quarter 2024 Results October 31, 2024 10/31/2024©2024 InterDigital, Inc.

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

October 31, 2024 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2024 Company delivers Q3 results above the top end of outlook and raises FY 2024 guidance

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2024 Company delivers Q3 results above the top end of outlook and raises FY 2024 guidance WILMINGTON, DE.

August 1, 2024 EX-10.2

2017 Equity Incentive Plan, Form of Term Sheet for Performance-Based Restricted Stock Unit Awards (revised July 2024).

EXHIBIT 10.2 INTERDIGITAL, INC. TERM SHEET FOR RESTRICTED STOCK UNITS (XXXX LTCP Performance-based) InterDigital, Inc. (the “Company”), hereby grants to the Participant named below the number of Restricted Stock Units specified below (the “Award”), upon the terms and subject to the conditions set forth in this Term Sheet for Restricted Stock Units (the “Term Sheet”), the Standard Terms and Conditi

August 1, 2024 EX-10.1

Amended InterDigital Inc. Executive Severance and Change in Control Policy.

EXHIBIT 10.1 InterDigital, Inc. Amended Executive Severance and Change in Control Policy This Executive Severance and Change in Control Policy (the “Policy”) is designed to provide certain protections to a select group of key employees of InterDigital, Inc. (“InterDigital” or the “Company”) or any of its subsidiaries in connection with a change in control of InterDigital or if in connection with t

August 1, 2024 EX-10.3

2017 Equity Incentive Plan, Form of Term Sheet for Performance-Based Stock Option Awards (revised July 2024).

EXHIBIT 10.3 INTERDIGITAL, INC. TERM SHEET FOR STOCK OPTION AWARD (YEAR Performance-Based) InterDigital, Inc. (the “Company”), hereby grants to the Participant named below an option (the “Option” or “Award”) to purchase the number of shares of the Company’s Common Stock specified below at the exercise price per Share (the “Exercise Price”) specified below, upon the terms and subject to the conditi

August 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

August 1, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2024 INTERDIGITAL, INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2024 INTERDIGITAL, INC.

August 1, 2024 EX-99.2

I N N O V A T I N G T O D A Y E M P O W E R I N G T O M O R R O W Second Quarter 2024 Results August 1, 2024 8/1/2024©2024 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-looking sta

supplementalmaterialsq22 I N N O V A T I N G T O D A Y E M P O W E R I N G T O M O R R O W Second Quarter 2024 Results August 1, 2024 8/1/2024©2024 InterDigital, Inc.

August 1, 2024 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2024 Company delivers Q2 results far above outlook and all-time record first half, and raises FY 2024 guidance

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2024 Company delivers Q2 results far above outlook and all-time record first half, and raises FY 2024 guidance WILMINGTON, DE.

June 21, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 17, 2024 INTERDIGITAL, INC.

June 20, 2024 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 o TRANSITION REPORT PURSUANT TO SECTION 15(d)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 10, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 5, 2024 INTERDIGITAL, INC.

May 2, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 2, 2024 INTERDIGITAL, INC.

May 2, 2024 S-8

As filed with the Securities and Exchange Commission on May 2, 2024

As filed with the Securities and Exchange Commission on May 2, 2024 Registration No.

May 2, 2024 EX-FILING FEES

Filing fee table.

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) InterDigital, Inc.

May 2, 2024 EX-99.2

First Quarter 2024 Results May 2, 2024 5/2/2024©2024 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act. Such st

First Quarter 2024 Results May 2, 2024 5/2/2024©2024 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act. Such statements include information regarding our current beliefs, plans and expectations, including, without limitation, the matters set forth below. Words

May 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

May 2, 2024 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2024 New license agreements drive 30% increase in YoY revenue and record quarter for Consumer Electronics Company reaffirms full year 2024 guidance

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2024 New license agreements drive 30% increase in YoY revenue and record quarter for Consumer Electronics Company reaffirms full year 2024 guidance WILMINGTON, DE.

April 23, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 23, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitt

February 15, 2024 EX-21

Subsidiaries of InterDigital.

EXHIBIT 21 SUBSIDIARIES OF INTERDIGITAL, INC. Subsidiary Jurisdiction / State of Incorporation or Organization Chordant Europe Ltd. United Kingdom Chordant France SAS France DRNC Holdings, Inc. Delaware IDLR Holdings, Inc. Delaware InterDigital Administrative Solutions, Inc. Pennsylvania InterDigital Belgium, LLC Delaware InterDigital Canada Ltee. Delaware InterDigital Capital, Inc. Delaware Inter

February 15, 2024 EX-10.29

Amended and Restated Deferred Compensation Plan

EXHIBIT 10.29 TRANSAMERICA RETIREMENT SOLUTIONS, LLC NONQUALIFIED DEFERRED COMPENSATION ADOPTION AGREEMENT FOR InterDigital, Inc. This Adoption Agreement is to be used in conjunction with the Transamerica Retirement Solutions, LLC Nonqualified Deferred Compensation Plan Document This Adoption Agreement is an important legal document. You should consult with your attorney on whether or not it accom

February 15, 2024 EX-99.1

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Revenue growth of 20%, significant margin expansion and record return of capital highlight 2023 results Full year 2024 revenue expected in a range of $620 million to $670 millio

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Revenue growth of 20%, significant margin expansion and record return of capital highlight 2023 results Full year 2024 revenue expected in a range of $620 million to $670 million WILMINGTON, DE.

February 15, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-33579 INTERDIGITAL, INC.

February 15, 2024 EX-10.27

Amended Compensation Program for Non-Management Directors

Exhibit 27 INTERDIGITAL, INC. Compensation Program for Non-Management Directors Base Annual Board Retainer: $65,000 Chairman of the Board: $75,000 Audit Committee Chair: $30,000 Compensation Committee Chair: $20,000 Investment Committee Chair: $15,000 Nominating and Corporate Governance Committee Chair: $15,000 Audit Committee Members: $12,000 Compensation Committee Members: $10,000 Investment Com

February 15, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 15, 2024 INTERDIGITAL, INC.

February 15, 2024 EX-97

Amended and Restated Clawback Policy

Exhibit 97 InterDigital, Inc. Clawback Policy (Revised August 2023) In accordance with the applicable rules of the Nasdaq Stock Market and Section 10D and Rule 10D-1 of the Securities Exchange Act of 1934 (“Exchange Act”) (together, the “Clawback Rules”), the Board of Directors of InterDigital, Inc. (the “Company”), has adopted this Policy to provide for the recovery of certain compensation previo

February 15, 2024 EX-99.2

Fourth Quarter and Full Year 2023 Results February 15, 2024 2/15/2024©2024 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the

Fourth Quarter and Full Year 2023 Results February 15, 2024 2/15/2024©2024 InterDigital, Inc.

February 15, 2024 EX-10.28

Amended and Restated Stock Ownership Guidelines for Directors and Executive Officers

Exhibit 28 Stock Ownership Guidelines for Directors and Executive Officers The Board of Directors of InterDigital, Inc.

February 13, 2024 SC 13G/A

IDCC / InterDigital, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01207-interdigitalinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 14)* Name of issuer: InterDigital Inc Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate

January 19, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): January 18, 2024 INTERDIGITAL, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): January 18, 2024 INTERDIGITAL, INC.

January 17, 2024 EX-99.1

InterDigital 26th Annual Needham Growth Conference | January 18, 2024 1/17/2024©2024 InterDigital, Inc. All Rights Reserved. 2 Disclaimers Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section

idccpresentationneedhamg InterDigital 26th Annual Needham Growth Conference | January 18, 2024 1/17/2024©2024 InterDigital, Inc.

January 17, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 17, 2024 INTERDIGITAL, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 17, 2024 INTERDIGITAL, INC.

January 16, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 16, 2024 INTERDIGITAL, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 16, 2024 INTERDIGITAL, INC.

January 16, 2024 EX-99.1

InterDigital Issues Preliminary Financial Results for Fourth Quarter 2023 and Outlook for First Quarter 2024

InterDigital Issues Preliminary Financial Results for Fourth Quarter 2023 and Outlook for First Quarter 2024 WILMINGTON, Del.

November 2, 2023 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2023 New License Agreements Drive 22% Increase In YoY Revenue; 116% Increase In YoY Net Income

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2023 New License Agreements Drive 22% Increase In YoY Revenue; 116% Increase In YoY Net Income WILMINGTON, DE.

November 2, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 2, 2023 INTERDIGITAL, INC.

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

August 3, 2023 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2023 Continued business success drives high margins and fuels return of capital to shareholders

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2023 Continued business success drives high margins and fuels return of capital to shareholders WILMINGTON, DE.

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

August 3, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 3, 2023 INTERDIGITAL, INC.

July 25, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): July 24, 2023 INTERDIGITAL, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): July 24, 2023 INTERDIGITAL, INC.

July 17, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): July 11, 2023 INTERDIGITAL, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): July 11, 2023 INTERDIGITAL, INC.

June 22, 2023 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 o TRANSITION REPORT PURSUANT TO SECTION 15(d)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 7, 2023 INTERDIGITAL, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 7, 2023 INTERDIGITAL, INC.

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

May 4, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 4, 2023 INTERDIGITAL, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 4, 2023 INTERDIGITAL, INC.

May 4, 2023 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2023 Samsung arbitration agreement and Lenovo judgement drive total revenue to over $200 million; record return of capital to shareholders

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2023 Samsung arbitration agreement and Lenovo judgement drive total revenue to over $200 million; record return of capital to shareholders WILMINGTON, DE.

April 20, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitte

April 20, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 22, 2023 EX-99.1

InterDigital Sidoti Conference | March 22, 2023 3/21/2023 ©2023 InterDigital, Inc. All Rights Reserved. 2 Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act. Such sta

Exhibit 99.1 InterDigital Sidoti Conference | March 22, 2023 3/21/2023 ©2023 InterDigital, Inc. All Rights Reserved. 2 Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 21E of the Exchange Act. Such statements include information regarding our current beliefs, plans and expectations, including, without limitation, the matters set forth b

March 22, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): March 22, 2023 INTERDIGITAL, INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): March 22, 2023 INTERDIGITAL, INC.

February 23, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 INTERDIGITAL, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 INTERDIGITAL, INC. (Exact name of Registrant as specified in its charter) Pennsylvania 001-33579 82-4936666 (State of Incorporation) (Commission File Number) (I.R.S.

February 23, 2023 SC TO-I/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 4) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigita

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 4) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigital, Inc. (Names of filing Persons (Offeror and Issuer)) Common Stock, Par Value $0.01 per share (Title of Class of Securities) 45867G101 (CUSIP Number

February 23, 2023 EX-99.1

InterDigital, Inc. Announces Final Results of Tender Offer

Exhibit 99.1 InterDigital, Inc. Announces Final Results of Tender Offer WILMINGTON, DEL. — February 23, 2023 — InterDigital, Inc. (Nasdaq: IDCC) (“InterDigital” or the “Company”) announced today the final results of its modified “Dutch auction” tender offer to purchase up to $200 million of its common stock for cash at a price per share not less than $65.25 and not greater than $75.00, which expir

February 21, 2023 EX-99.1

InterDigital, Inc. Announces Preliminary Results of Tender Offer

Exhibit 99.1 InterDigital, Inc. Announces Preliminary Results of Tender Offer WILMINGTON, DEL. — February 21, 2023 — InterDigital, Inc. (Nasdaq: IDCC) (“InterDigital” or the “Company”) announced today the preliminary results of its modified “Dutch auction” tender offer to purchase up to $200 million of its common stock for cash at a price per share not less than $65.25 and not greater than $75.00,

February 21, 2023 SC TO-I/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 3) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigita

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 3) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigital, Inc. (Names of filing Persons (Offeror and Issuer)) Common Stock, Par Value $0.01 per share (Title of Class of Securities) 45867G101 (CUSIP Number

February 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2023 INTERDIGITAL, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2023 INTERDIGITAL, INC. (Exact name of Registrant as specified in its charter) Pennsylvania 001-33579 82-4936666 (State of Incorporation) (Commission File Number) (I.R.S.

February 15, 2023 SC TO-I/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 2) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigita

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 2) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigital, Inc. (Names of filing Persons (Offeror and Issuer)) Common Stock, Par Value $0.01 per share (Title of Class of Securities) 45867G101 (CUSIP Number

February 15, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-33579 INTERDIGITAL, INC.

February 15, 2023 EX-21

Subsidiaries of InterDigital.

EXHIBIT 21 SUBSIDIARIES OF INTERDIGITAL, INC. Subsidiary Jurisdiction / State of Incorporation or Organization 7H World, Inc. Delaware Chordant Europe Ltd. United Kingdom Chordant France SAS France Chordant, Inc. Delaware DRNC Holdings, Inc. Delaware IDLR Holdings, Inc. Delaware InterDigital Administrative Solutions, Inc. Pennsylvania InterDigital Belgium, LLC Delaware InterDigital Canada Ltee. De

February 15, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 15, 2023 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission File

February 15, 2023 EX-99.1

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Record recurring revenue, record CE, IoT/Auto revenue and strong profits highlight 2022 results

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Record recurring revenue, record CE, IoT/Auto revenue and strong profits highlight 2022 results WILMINGTON, DE.

February 9, 2023 SC 13G/A

IDCC / InterDigital Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01166-interdigitalinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: InterDigital Inc. Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate

February 6, 2023 EX-99.(A)(1)(XII)

Amended letter to brokers, dealers, commercial banks, trust companies and other nominees, dated February 6, 2023.

 Exhibit (a)(1)(xii) Offer by INTERDIGITAL, INC. to Purchase for Cash Up to $200,000,000 of its Common Stock At a Purchase Price Not Less Than $65.25 Per Share and Not More Than $75.00 Per Share The tender offer, the proration period and withdrawal rights expire at 11:59 p.m., New York City time, on February 17, 2023, unless the tender offer is extended or terminated. February 6, 2023 To Brokers,

February 6, 2023 EX-99.(A)(1)(X)

Form of Amended Letter of Transmittal.

 Exhibit (a)(1)(x) AMENDED LETTER OF TRANSMITTAL To Tender Shares of Common Stock Pursuant to the Offer to Purchase Dated January 23, 2023 and the Supplement to Offer to Purchase Dated February 6, 2023 by INTERDIGITAL, INC.

February 6, 2023 EX-99.(A)(1)(XI)

Amended Notice of Guaranteed Delivery.

 Exhibit (a)(1)(xi) AMENDED NOTICE OF GUARANTEED DELIVERY (Not to Be Used For Signature Guarantee) To Tender Shares of Common Stock Pursuant to the Offer to Purchase Dated January 23, 2023 and and Supplement to Offer to Purchase Dated February 6, 2023 by INTERDIGITAL, INC.

February 6, 2023 EX-99.1

InterDigital, Inc. Increases Price Range for Tender Offer to Repurchase up to $200 Million of its Common Stock

EXHIBIT 99.1 InterDigital, Inc. Increases Price Range for Tender Offer to Repurchase up to $200 Million of its Common Stock WILMINGTON, DEL. — February 6, 2023 —InterDigital, Inc. (Nasdaq: IDCC), (“InterDigital” or the “Company”) announced today that it is amending its previously announced modified “Dutch auction” tender offer (the “Tender Offer”) to purchase for cash up to $200 million of its com

February 6, 2023 EX-99.(A)(1)(XIII)

Amended letter to clients for use by brokers, dealers, commercial banks, trust companies and other nominees, dated February 6, 2023.

 Exhibit (a)(1)(xiii) Offer by INTERDIGITAL, INC. to Purchase for Cash Up to $200,000,000 of its Common Stock At a Purchase Price Not Less Than $65.25 Per Share and Not More Than $75.00 Per Share The tender offer, the proration period and withdrawal rights expire at 11:59 p.m., New York City time, on February 17, 2023, unless the tender offer is extended or terminated. February 6, 2023 To our Clie

February 6, 2023 SC TO-I/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 1) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigita

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO (Amendment No. 1) Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigital, Inc. (Names of filing Persons (Offeror and Issuer)) Common Stock, Par Value $0.01 per share (Title of Class of Securities) 45867G101 (CUSIP Number

February 6, 2023 EX-99.(A)(1)(IX)

Supplement to Offer to Purchase, dated February 6, 2023.

 Exhibit (a)(1)(ix) INTERDIGITAL, INC. Supplement to Offer to Purchase for Cash Up to $200,000,000 of its Common Stock To Increase the Purchase Price to Not Less Than $65.25 Per Share and Not More Than $75.00 Per Share CUSIP: 45867G101 The tender offer, the proration period and withdrawal rights expire at 11:59 p.m., New York City time, on February 17, 2023, unless the tender offer is extended or

February 6, 2023 EX-99.(A)(1)(XIV)

Amended direction letter for use by participants in the InterDigital, Inc. Savings and Protection Plan.

 Exhibit (a)(1)(xiv) IMPORTANT NOTICE TO PARTICIPANTS IN THE INTERDIGITAL, INC. SAVINGS AND PROTECTION PLAN AMENDED TRUSTEE DIRECTION FORM INTERDIGITAL, INC. SAVINGS AND PROTECTION PLAN BEFORE COMPLETING THIS FORM, PLEASE READ CAREFULLY ALL ENCLOSED MATERIALS PLEASE NOTE THAT IF YOUR AMENDED TRUSTEE DIRECTION FORM IS NOT RECEIVED BY THE TABULATION AGENT, AMERICAN STOCK TRANSFER & TRUST COMPANY, LL

February 6, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 6, 2023 INTERDIGITAL, INC. (Exact name of Registrant as specified in its charter) Pennsylvania 001-33579 82-4936666 (State of Incorporation) (Commission File Number) (I.R.S.

January 31, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): January 31, 2023 INTERDIGITAL, INC.

January 23, 2023 EX-99.(A)(1)(II)

Form of Letter of Transmittal.

 Exhibit (a)(1)(ii) LETTER OF TRANSMITTAL To Tender Shares of Common Stock Pursuant to the Offer to Purchase Dated January 23, 2023 by INTERDIGITAL, INC.

January 23, 2023 EX-99.(A)(1)(VI)

Summary Advertisement, dated January 23, 2023.

 Exhibit (a)(1)(vi) This announcement is neither an offer to purchase nor a solicitation of an offer to sell shares of InterDigital, Inc.

January 23, 2023 8-K

Temporary Suspension of Trading Under Registrant's Employee Benefit Plans

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 23, 2023 INTERDIGITAL, INC. (Exact name of registrant as specified in its charter) Pennsylvania 001-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission

January 23, 2023 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables SC TO-I (Form Type) InterDigital, Inc.

January 23, 2023 EX-99.(A)(1)(VII)

Letter to participants in the InterDigital, Inc. Savings and Protection Plan.

 Exhibit (a)(1)(vii) IMPORTANT NOTICE TO PARTICIPANTS IN THE INTERDIGITAL, INC. SAVINGS AND PROTECTION PLAN TRUSTEE DIRECTION FORM INTERDIGITAL, INC. SAVINGS AND PROTECTION PLAN BEFORE COMPLETING THIS FORM, PLEASE READ CAREFULLY ALL ENCLOSED MATERIALS PLEASE NOTE THAT IF YOUR TRUSTEE DIRECTION FORM IS NOT RECEIVED BY THE TABULATION AGENT, AMERICAN STOCK TRANSFER & TRUST COMPANY, LLC, PROPERLY COMP

January 23, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 23, 2023 INTERDIGITAL, INC. (Exact name of registrant as specified in its charter) Pennsylvania 001-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission

January 23, 2023 EX-99.(A)(1)(V)

Letter to clients for use by brokers, dealers, commercial banks, trust companies and other nominees, dated January 23, 2023.

 Exhibit (a)(1)(v) Offer by INTERDIGITAL, INC. to Purchase for Cash Up to $200,000,000 of its Common Stock At a Purchase Price Not Less Than $60.00 Per Share and Not More Than $69.00 Per Share The tender offer, the proration period and withdrawal rights expire at 11:59 p.m., New York City time, on February 17, 2023, unless the tender offer is extended or terminated. January 23, 2023 To our Clients

January 23, 2023 EX-99.(A)(1)(IV)

Letter to brokers, dealers, commercial banks, trust companies and other nominees, dated January 23, 2023.

 Exhibit (a)(1)(iv) Offer by INTERDIGITAL, INC. to Purchase for Cash Up to $200,000,000 of its Common Stock At a Purchase Price Not Less Than $60.00 Per Share and Not More Than $69.00 Per Share The tender offer, the proration period and withdrawal rights expire at 11:59 p.m., New York City time, on February 17, 2023, unless the tender offer is extended or terminated. January 23, 2023 To Brokers, D

January 23, 2023 EX-99.(A)(1)(III)

Notice of Guaranteed Delivery.

 Exhibit (a)(1)(iii) NOTICE OF GUARANTEED DELIVERY (Not to Be Used For Signature Guarantee) To Tender Shares of Common Stock Pursuant to the Offer to Purchase Dated January 23, 2023 by INTERDIGITAL, INC.

January 23, 2023 EX-99.1

InterDigital, Inc. Commences a Modified “Dutch Auction” Tender Offer to Repurchase up to $200 Million of its Common Stock

Exhibit 99.1 InterDigital, Inc. Commences a Modified “Dutch Auction” Tender Offer to Repurchase up to $200 Million of its Common Stock WILMINGTON, DEL. — January 23, 2023 —InterDigital, Inc. (Nasdaq: IDCC), (“InterDigital” or the “Company”) announced today that it has commenced a modified “Dutch auction” tender offer (the “Tender Offer”) to purchase for cash up to $200 million of its common stock

January 23, 2023 SC TO-I

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigital, Inc. (Names of

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 InterDigital, Inc. (Name of Subject Company (Issuer)) InterDigital, Inc. (Names of filing Persons (Offeror and Issuer)) Common Stock, Par Value $0.01 per share (Title of Class of Securities) 45867G101 (CUSIP Number of Class of Securi

January 23, 2023 EX-99.(A)(1)(I)

Offer to Purchase, dated January 23, 2023.

TABLE OF CONTENTS  Exhibit (a)(1)(i) INTERDIGITAL, INC. Offer to Purchase for Cash Up to $200,000,000 of its Common Stock At a Purchase Price Not Less Than $60.00 Per Share and Not More Than $69.00 Per Share CUSIP: 45867G101 The tender offer, the proration period and withdrawal rights expire at 11:59 p.m., New York City time, on February 17, 2023, unless the tender offer is extended or terminated.

January 23, 2023 EX-99.(A)(1)(VIII)

Notice to participants in the InterDigital, Inc. Savings and Protection Plan.

Exhibit (a)(1)(viii) Important Notice Concerning Your Rights Under the: InterDigital Savings and Protection Plan Date of Notice: January 23, 2023 · This notice is to inform you that the InterDigital Savings and Protection Plan (the “Plan”) will be issuing a tender offer to participants with assets in the InterDigital, Inc.

January 19, 2023 EX-99.1

INTERDIGITAL ISSUES PRELIMINARY FINANCIAL RESULTS FOR FOURTH QUARTER 2022

Exhibit 99.1 INTERDIGITAL ISSUES PRELIMINARY FINANCIAL RESULTS FOR FOURTH QUARTER 2022 WILMINGTON, DE. - January 19, 2023 - InterDigital, Inc. (NASDAQ:IDCC), a mobile and video technology research and development company, today announced selected and unaudited preliminary financial results for the quarter ended December 31, 2022. ● The company expects total revenue to be approximately $114 million

January 19, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 19, 2023 INTERDIGITAL, INC. (Exact name of registrant as specified in its charter) Pennsylvania 001-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission

January 3, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): January 1, 2023 INTERDIGITAL, INC.

November 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 3, 2022 INTERDIGITAL, INC.

November 3, 2022 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2022 Apple renewal contributes to InterDigital’s $1.5B in value of contracts signed over last eighteen months

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2022 Apple renewal contributes to InterDigital?s $1.

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

October 3, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): September 30, 2022 INTERDIGITAL, INC.

August 31, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): August 29, 2022 INTERDIGITAL, INC.

August 4, 2022 EX-10.5

Offer Letter between InterDigital, Inc. and Rajesh Pankaj dated June 16, 2022 (filed as Exhibit 10.5 to InterDigital’s Quarterly Report on Form 10-Q filed on August 4, 2022, and incorporated herein by reference).

Certain personally identifiable information, marked by brackets as [***], has been omitted from this exhibit pursuant to Item 601(a)(6) under Regulation S-K.

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

August 4, 2022 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2022 New License Agreements drive 42% Increase in YoY Revenue

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2022 New License Agreements drive 42% Increase in YoY Revenue WILMINGTON, DE.

August 4, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2022 INTERDIGITAL, INC.

August 2, 2022 CORRESP

August 2, 2022 United States Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, N.E. Washington, DC 20549 Attention: Frank Knapp Re: InterDigital, Inc. Form 10-K for the Fiscal Year E

August 2, 2022 United States Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, N.

July 15, 2022 EX-3.1

Amended and Restated Bylaws of InterDigital (Exhibit 3.1 to InterDigital's Current Report on Form 8-K filed on July 15, 2022).

Exhibit 3.1 INTERDIGITAL, INC. (A PENNSYLVANIA CORPORATION) AMENDED AND RESTATED BYLAWS Section 1.1 Registered Office. The Registered Office of the Corporation shall be c/o CT Corporation System, Dauphin County, Pennsylvania until otherwise changed by the Board of Directors. Section 2.1 Place of Shareholders? Meetings. Meetings of the shareholders shall be held at the Registered Office of the Corp

July 15, 2022 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): July 13, 2022 INTERDIGITAL, INC.

July 15, 2022 EX-3.2

INTERDIGITAL, INC. (A PENNSYLVANIA CORPORATION) AMENDED AND RESTATED BYLAWS

Exhibit 3.2 INTERDIGITAL, INC. (A PENNSYLVANIA CORPORATION) AMENDED AND RESTATED BYLAWS Section 1.1 Registered Office The Registered Office of the Corporation shall be c/o CT Corporation System, Dauphin County, Pennsylvania until otherwise changed by the Board of Directors. Section 2.1 Place of Shareholders? Meetings Meetings of the shareholders shall be held at the Registered Office of the Corpor

June 23, 2022 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 þ ANNUAL REPORT PURSUANT TO SECT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 23, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 17, 2022 INTERDIGITAL, INC.

June 3, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 1, 2022 INTERDIGITAL, INC.

May 27, 2022 EX-10.1

Purchase Agreement, dated May 24, 2022, between InterDigital, Inc. and BofA Securities Inc. and Jefferies LLC, as representatives of the several initial purchasers named in Schedule I attached thereto (filed as Exhibit 10.1 to InterDigital’s Form 8-K dated May 24, 2022, and incorporated herein by reference).

Exhibit 10.1 $400,000,000 INTERDIGITAL, INC. 3.50% SENIOR CONVERTIBLE NOTES DUE 2027 PURCHASE AGREEMENT May 24, 2022 BofA Securities, Inc. Jefferies LLC As Representatives of the several Initial Purchasers named in Schedule I attached hereto c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 c/o Jefferies LLC 520 Madison Avenue New York, New York 10022 Ladies and Gentlemen: InterDi

May 27, 2022 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 24, 2022 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 27, 2022 EX-10.2

Form of Convertible Note Hedge Transaction Confirmation (filed as Exhibit 10.2 to InterDigital’s Form 8-K dated May 24, 2022, and incorporated herein by reference).

Exhibit 10.2 [Dealer Address] DATE: [], 2022 TO: InterDigital, Inc. ATTENTION: Richard Brezski TELEPHONE: [] FACSIMILE: [] FROM: [] ATTENTION: [] TELEPHONE: [] FACSIMILE: [] SUBJECT: Bond Hedge Transaction1 The purpose of this letter agreement (this ?Confirmation?) is to confirm the terms and conditions of the transaction entered into between [Dealer] (?Dealer?)[, through its agent [Agent] (the ?A

May 27, 2022 EX-99.2

-2-

Exhibit 99.2 May 25, 2022 InterDigital Announces Upsize and Pricing of Private Offering of $400 Million of 3.50% Senior Convertible Notes WILMINGTON, Del., May 25, 2022 (GLOBE NEWSWIRE) ? InterDigital, Inc. (?InterDigital?) (Nasdaq:IDCC) announced today the pricing of its private offering of $400.0 million aggregate principal amount of 3.50% Senior Convertible Notes due 2027 (the ?notes?) to be so

May 27, 2022 EX-10.3

Form of Warrant Transaction Confirmation (filed as Exhibit 10.3 to InterDigital’s Form 8-K dated May 24, 2022, and incorporated herein by reference).

Exhibit 10.3 THE SECURITIES REPRESENTED HEREBY (THE ?WARRANTS?) WERE ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE ?SECURITIES ACT?), AND THE WARRANTS MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO A REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR AN APPLICABLE EXEMPTION FROM THE REGISTRATION REQ

May 27, 2022 EX-10.4

Form of Unwind Agreement (filed as Exhibit 10.4 to InterDigital’s Form 8-K dated May 24, 2022, and incorporated herein by reference).

Exhibit 10.4 PARTIAL UNWIND AGREEMENT with respect to the Base Call Option Transaction Confirmation, dated May 29, 2019 and the Base Warrant Confirmation, dated May 29, 2019 between InterDigital, Inc. and [Dealer] THIS PARTIAL UNWIND AGREEMENT (this ?Agreement?) with respect to the Base1 Call Option Transaction Confirmation (as defined below) and the Base2 Warrant Confirmation (as defined below) i

May 27, 2022 EX-4.1

Indenture, dated May 27, 2022, between InterDigital, Inc. and The Bank of New York Mellon Trust Company, N.A., as trustee (filed as Exhibit 4.1 to InterDigital’s Form 8-K dated May 24, 2022, and incorporated herein by reference).

Exhibit 4.1 INTERDIGITAL, INC. 3.50% Senior Convertible Notes due 2027 INDENTURE Dated as of May 27, 2022 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee TABLE OF CONTENTS Page ARTICLE 1 Definitions and Incorporation by Reference 1 SECTION 1.01. Definitions 1 ARTICLE 2 The Notes 12 SECTION 2.01. Designation, Amount and Issuance of Notes 12 SECTION 2.02. Form of the Notes 13 SECTION 2.0

May 27, 2022 EX-99.1

May 24, 2022

Exhibit 99.1 May 24, 2022 InterDigital Announces Proposed Private Offering of $350 Million of Senior Convertible Notes WILMINGTON, Del., May 24, 2022 (GLOBE NEWSWIRE) ? InterDigital, Inc. (?InterDigital?) (Nasdaq:IDCC) announced that it intends to offer, subject to market and other conditions, $350 million aggregate principal amount of Senior Convertible Notes due 2027 in a private offering. The n

May 24, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): May 6, 2022 INTERDIGITAL, INC.

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

May 5, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 5, 2022 INTERDIGITAL, INC.

May 5, 2022 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2022 First quarter revenue over $100 million; strong revenue outlook for second quarter

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2022 First quarter revenue over $100 million; strong revenue outlook for second quarter WILMINGTON, DE.

April 18, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitte

April 18, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

February 17, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-33579 INTERDIGITAL, INC.

February 17, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 17, 2022 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission File

February 17, 2022 EX-99.1

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Record number of new license agreements drives strong results

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Record number of new license agreements drives strong results WILMINGTON, DE.

February 17, 2022 EX-10.28

Executive Agreement between InterDigital International, LLC and Eeva Hakoranta, dated June 2, 2020 (filed as Exhibit 10.28 to InterDigital’s Annual Report on Form 10-K filed on February 17, 2022, and incorporated herein by reference).

EXHIBIT 10.28 Certain personally identifiable information, marked by brackets as [***], has been omitted from this exhibit pursuant to Item 601(a)(6) under Regulation S-K. EXECUTIVE AGREEMENT PARTIES (1)InterDigital International, LLC on behalf of its yet to be formed subsidiary and ultimate employer, InterDigital Finland Oy (the Company) (2)Eeva Hakoranta (social security code [***]), [***], FINL

February 17, 2022 EX-21

Subsidiaries of InterDigital.

EXHIBIT 21 SUBSIDIARIES OF INTERDIGITAL, INC. Subsidiary Jurisdiction / State of Incorporation or Organization 6GWorld, Inc. Delaware Chordant Europe Ltd. United Kingdom Chordant France SAS France Chordant, Inc. Delaware DRNC Holdings, Inc. Delaware DST Holdings, Inc. Delaware IDAC Holdings, Inc. Delaware IDHL Holdings, Inc. Delaware IDLR Holdings, Inc. Delaware IDPA Holdings, Inc. Delaware IDTP H

February 17, 2022 EX-10.27

Form of Indemnity Agreement between InterDigital and certain of its directors and executive officers (Exhibit 10.27 to InterDigital's Annual Report on Form 10-K for the year ended December 31, 2021).

EXHIBIT 10.27 INDEMNITY AGREEMENT This Indemnity Agreement is entered into and to be effective as of [ ], by and between InterDigital, Inc., a Pennsylvania corporation, on behalf of itself and each of its subsidiaries (collectively, the ?Company?), and [ ] (the ?Indemnitee?). RECITALS A.The Company has concluded that to facilitate the performance of the Indemnitee in his/her duties to the Company,

February 17, 2022 EX-10.31

Retirement & Transition Agreement and Release, dated October 19, 2021, by and between InterDigital and Richard L. Gulino (Exhibit 10.31 to InterDigital's Annual Report on Form 10-K for the year ended December 31, 2021).

EXHIBIT 10.31 RETIREMENT & TRANSITION AGREEMENT AND RELEASE This Retirement & Transition Agreement and Release (?Agreement?) is made by and between Richard L. Gulino (?Executive?) and InterDigital, Inc. (the ?Company?) (collectively referred to as the ?Parties? or individually referred to as a ?Party?). RECITALS WHEREAS, Executive was employed by the Company as its Chief Legal Officer, General Cou

February 10, 2022 SC 13G/A

IDCC / InterDigital Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: InterDigital Inc. Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ 

January 13, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): January 13, 2022 INTERDIGITAL, INC.

January 13, 2022 EX-99.1

InterDigital Investor Presentation Needham Growth ConferenceJanuary 13, 2022 1 © 2022 InterDigital, Inc. All Rights Reserved. Forward-looking Statements 2 © 2022 InterDigital, Inc. All Rights Reserved. This presentation contains forward-looking state

Exhibit 99.1 InterDigital Investor Presentation Needham Growth ConferenceJanuary 13, 2022 1 ? 2022 InterDigital, Inc. All Rights Reserved. Forward-looking Statements 2 ? 2022 InterDigital, Inc. All Rights Reserved. This presentation contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. Such statements include information regarding

December 22, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): December 20, 2021 INTERDIGITAL, INC.

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

November 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 4, 2021 INTERDIGITAL, INC.

November 4, 2021 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2021 New license agreements drive 64% revenue increase and 138% increase in operating income

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2021 New license agreements drive 64% revenue increase and 138% increase in operating income WILMINGTON, DE.

October 19, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): October 15, 2021 INTERDIGITAL, INC.

October 4, 2021 8-K

Costs Associated with Exit or Disposal Activities

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): September 28, 2021 INTERDIGITAL, INC.

August 5, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 5, 2021 INTERDIGITAL, INC.

August 5, 2021 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2021 RECENTLY SIGNED DEAL ADDS TO MOMENTUM

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2021 RECENTLY SIGNED DEAL ADDS TO MOMENTUM WILMINGTON, DE.

August 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

June 25, 2021 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 þ ANNUAL REPORT PURSUANT TO SECT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 10, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 10, 2021 INTERDIGITAL, INC.

June 4, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): June 2, 2021 INTERDIGITAL, INC.

May 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: InterDigital Inc. Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: April 30, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rul

May 6, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 6, 2021 INTERDIGITAL, INC.

May 6, 2021 EX-10.1

Retirement & Transition Agreement and Release, dated March 16, 2021, by and between InterDigital and William J. Merritt, (Exhibit 10.1 to InterDigital's Quarterly Report on Form 10-Q filed on May 6, 2021).

RETIREMENT & TRANSITION AGREEMENT AND RELEASE This Retirement & Transition Agreement and Release (?Agreement?) is made by and between William J.

May 6, 2021 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2021 8% year-over-year revenue growth more than doubles operating income

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2021 8% year-over-year revenue growth more than doubles operating income WILMINGTON, DE.

May 6, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

May 6, 2021 EX-10.2

Offer Letter Between InterDigital and Liren Chen dated March 13, 2021 (filed as Exhibit 10.2 to InterDigital’s Quarterly Report on Form 10-Q filed on May 6, 2021, and incorporated herein by reference).

March 13, 2021 Liren Chen Dear Liren: On behalf of InterDigital, Inc. (?InterDigital?), I am pleased to offer you the opportunity to join InterDigital as President & Chief Executive Officer. You will be a member of the InterDigital Board of Directors. You will report to our Board of Directors. Start Date: Your start date will be April 5, 2021. You agree to devote your full business time, attention

April 28, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): April 27, 2021 INTERDIGITAL, INC.

April 16, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a- 6(e

April 16, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitte

March 16, 2021 EX-99.1

InterDigital Announces Leadership Transition William J. Merritt to Retire After 25 Years at the Company Liren Chen Appointed President and CEO

Exhibit 99.1 IDCC Leadership Transition Press Release FOR IMMEDIATE RELEASE InterDigital Announces Leadership Transition William J. Merritt to Retire After 25 Years at the Company Liren Chen Appointed President and CEO WILMINGTON, Del., March 16, 2021 – InterDigital, Inc. (NASDAQ: IDCC), a mobile and video technology research and development company, today announced that William J. Merritt will re

March 16, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): March 16, 2021 InterDigital, Inc.

February 18, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 18, 2021 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission File

February 18, 2021 EX-21

Subsidiaries of InterDigital.

EXHIBIT 21 SUBSIDIARIES OF INTERDIGITAL, INC. Subsidiary Jurisdiction / State of Incorporation or Organization 6GWorld, Inc. Delaware Chordant Europe Ltd. United Kingdom Chordant France SASU France Chordant, Inc. Delaware DRNC Holdings, Inc. Delaware DST Holdings, Inc. Delaware IDAC Holdings, Inc. Delaware IDHL Holdings, Inc. Delaware IDLR Holdings, Inc. Delaware IDPA Holdings, Inc. Delaware IDTP

February 18, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-33579 INTERDIGITAL, INC.

February 18, 2021 EX-4.2

Description of InterDigital's Securities (Exhibit 4.2 to InterDigital's Annual Report on Form 10-K for the year ended December 31, 2020).

Exhibit 4.2 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a description of the common stock of Interdigital, Inc. (the ?Company?, ?we? or ?our?), which is the only security of the Company registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?). General We are inc

February 18, 2021 EX-99.1

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS 13% year-over-year revenue growth drives 118% increase in earnings per share

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS 13% year-over-year revenue growth drives 118% increase in earnings per share WILMINGTON, DE.

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: InterDigital Inc. Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ 

November 5, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

November 5, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 5, 2020 INTERDIGITAL, INC.

November 5, 2020 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2020 21% year-over-year increase in recurring revenue drives fourfold increase in operating income

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2020 21% year-over-year increase in recurring revenue drives fourfold increase in operating income WILMINGTON, DE.

September 29, 2020 8-K

Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 23, 2020 INTERDIGITAL, INC.

September 24, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 24, 2020 INTERDIGITAL, IN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 24, 2020 INTERDIGITAL, INC.

September 24, 2020 EX-99.1

© 2020 InterDigital, Inc. All Rights Reserved. InterDigital Q3 2020 Investor Presentation This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securi

Exhibit 99.1 © 2020 InterDigital, Inc. All Rights Reserved. InterDigital Q3 2020 Investor Presentation This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, regarding InterDigital, Inc.’s current beliefs, plans and expectations, as to: (i) future results,

August 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 6, 2020 INTERDIGITAL, INC.

August 6, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

August 6, 2020 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2020 New licensing drives 15% year-over-year increase in recurring revenue

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2020 New licensing drives 15% year-over-year increase in recurring revenue WILMINGTON, DE.

July 30, 2020 EX-99.1

INTERDIGITAL FILES PATENT INFRINGEMENT ACTIONS AGAINST XIAOMI IN INDIA Actions Brought Subsequent to Years of Negotiation

INTERDIGITAL FILES PATENT INFRINGEMENT ACTIONS AGAINST XIAOMI IN INDIA Actions Brought Subsequent to Years of Negotiation WILMINGTON, DEL.

July 30, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 30, 2020 INTERDIGITAL, INC.

June 19, 2020 11-K

- 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 15, 2020 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 10, 2020 INTERDIGITAL, INC.

June 8, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 3, 2020 INTERDIGITAL, INC.

June 3, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 3, 2020 INTERDIGITAL, INC.

May 28, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

May 7, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 7, 2020 INTERDIGITAL, INC.

May 7, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

May 7, 2020 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2020

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR FIRST QUARTER 2020 New licensing drives increased revenue platform; Results mark achievement of company cost goals WILMINGTON, DE.

April 28, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 28, 2020 INTERDIGITAL, INC.

April 28, 2020 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 28, 2020 INTERDIGITAL, INC.

April 28, 2020 EX-99.1

© 2020 InterDigital, Inc. All Rights Reserved. InterDigital Q2 2020 Investor Presentation This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securi

Exhibit 99.1 © 2020 InterDigital, Inc. All Rights Reserved. InterDigital Q2 2020 Investor Presentation This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, regarding InterDigital, Inc.’s current beliefs, plans and expectations, as to: (i) future results,

April 17, 2020 DEFA14A

IDCC / InterDigital, Inc. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

April 17, 2020 DEF 14A

IDCC / InterDigital, Inc. DEF 14A - - DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 14, 2020 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 9, 2020 INTERDIGITAL, INC.

April 9, 2020 SC 13G/A

IDCC / InterDigital, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: InterDigital Inc Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: March 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

February 20, 2020 EX-99.1

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS New Wireless, Consumer Electronics Deals in Fourth Quarter Drive 6% Year-over-year Growth in Recurring Revenue

INTERDIGITAL REPORTS FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS New Wireless, Consumer Electronics Deals in Fourth Quarter Drive 6% Year-over-year Growth in Recurring Revenue WILMINGTON, DE.

February 20, 2020 EX-4.2

Description of InterDigital's Securities.

Exhibit 4.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a description of the common stock of Interdigital, Inc. (the “Company”, “we” or “our”), which is the only security of the Company registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). General We are inc

February 20, 2020 EX-10.31

Retirement & Transition Agreement and Release, dated December 9, 2019, by and between InterDigital and Jannie K. Lau

RETIREMENT & TRANSITION AGREEMENT AND RELEASE This Retirement & Transition Agreement and Release (“Agreement”) is made by and between Jannie Lau (“Executive”) and InterDigital, Inc.

February 20, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 20, 2020 INTERDIGITAL, INC.

February 20, 2020 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-33579 INTERDIGITAL, INC.

February 20, 2020 EX-10.20

Compensation Program for Non-Management Directors (as amended June 2019) (filed as Exhibit 10.20 to InterDigital’s Annual Report on Form 10-K for the year ended December 31, 2019, and incorporated herein by reference).

INTERDIGITAL, INC. Compensation Program for Non-Management Directors Base Annual Board Retainer: $50,000 Chairman of the Board: $50,000 Audit Committee Chair: $30,000 Compensation Committee Chair: $20,000 Investment Committee Chair: $15,000 Nominating and Corporate Governance Committee Chair: $15,000 Audit Committee Members: $12,000 Compensation Committee Members: $10,000 Investment Committee Memb

February 20, 2020 EX-21

Subsidiaries of InterDigital.

EXHIBIT 21 SUBSIDIARIES OF INTERDIGITAL, INC. Subsidiary Jurisdiction / State of Incorporation or Organization Chordant Europe Ltd. United Kingdom Chordant France SASU France Chordant, Inc. Delaware DRNC Holdings, Inc. Delaware DST Holdings, Inc. Delaware IDAC Holdings, Inc. Delaware IDHL Holdings, Inc. Delaware IDHL Holdings Parent, Inc. (f/k/a Hillcrest Laboratories, Inc.) Delaware IDLR Holdings

February 12, 2020 SC 13G/A

IDCC / InterDigital, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: InterDigital Inc Title of Class of Securities: Common Stock CUSIP Number: 45867G101 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Ru

January 13, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 13, 2020 INTERDIGITAL, INC.

January 13, 2020 EX-99.1

© 2020 InterDigital, Inc. All Rights Reserved. InterDigital Needham ConferenceJanuary 15, 2020 Agenda 2 Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933,

Exhibit 99.1 © 2020 InterDigital, Inc. All Rights Reserved. InterDigital Needham ConferenceJanuary 15, 2020 Agenda 2 Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, regarding InterDigital, Inc.’s current beliefs, plans and

December 9, 2019 EX-99.1

INTERDIGITAL APPOINTS RICHARD GULINO CHIEF LEGAL OFFICER

EX-99.1 Exhibit 99.1 INTERDIGITAL APPOINTS RICHARD GULINO CHIEF LEGAL OFFICER WILMINGTON, DEL. — December 9, 2019 —InterDigital, Inc. (NASDAQ:IDCC), a mobile and video technology research and development company, today announced the appointment of Richard L. Gulino as Chief Legal Officer, General Counsel and Corporate Secretary. Mr. Gulino steps into the role following the retirement of Jannie K.

December 9, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (Date of earliest event reported): December 8, 2019 InterDigital, Inc.

December 4, 2019 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 4, 2019 INTERDIGITAL, INC.

December 4, 2019 EX-99.1

INTERDIGITAL FILES PATENT INFRINGEMENT ACTION AGAINST HUAWEI IN UK

News Release INTERDIGITAL FILES PATENT INFRINGEMENT ACTION AGAINST HUAWEI IN UK WILMINGTON, DEL.

October 31, 2019 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2019

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2019 Careful expense control, new licensing success after quarter highlight operating leverage of business model WILMINGTON, DE.

October 31, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 31, 2019 INTERDIGITAL, INC.

October 31, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

October 22, 2019 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 18, 2019 INTERDIGITAL, INC.

August 28, 2019 EX-99

INTERDIGITAL FILES PATENT INFRINGEMENT ACTION AGAINST LENOVO IN UK Action Brought Subsequent to Long Period of Negotiation; First Initiated Infringement Action by InterDigital in More Than 6 Years

News Release INTERDIGITAL FILES PATENT INFRINGEMENT ACTION AGAINST LENOVO IN UK Action Brought Subsequent to Long Period of Negotiation; First Initiated Infringement Action by InterDigital in More Than 6 Years WILMINGTON, DEL.

August 28, 2019 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 28, 2019 INTERDIGITAL, INC.

August 1, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2019 INTERDIGITAL, INC.

August 1, 2019 EX-99.1

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2019 New wireless licensing and expansion of business to consumer electronics drive 10% year-over-year growth in recurring revenue

INTERDIGITAL ANNOUNCES FINANCIAL RESULTS FOR SECOND QUARTER 2019 New wireless licensing and expansion of business to consumer electronics drive 10% year-over-year growth in recurring revenue WILMINGTON, DE.

August 1, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-33579 INTERDIGITAL, INC.

June 20, 2019 11-K

IDCC / InterDigital, Inc. 11-K - - 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 11-K FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-33579 A.

June 17, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 12, 2019 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission File Num

June 3, 2019 EX-4.1

Indenture, dated June 3, 2019, between InterDigital and The Bank of New York Mellon Trust Company, N.A., as trustee (filed as Exhibit 4.1 to InterDigital’s Current Report on Form 8-K filed on May 29, 2019, and incorporated herein by reference).

EX-4.1 Exhibit 4.1 Execution Version INTERDIGITAL, INC. 2.00% Senior Convertible Notes due 2024 INDENTURE Dated as of June 3, 2019 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee TABLE OF CONTENTS Page ARTICLE 1 Definitions and Incorporation by Reference 1 SECTION 1.01. Definitions 1 ARTICLE 2 The Notes 12 SECTION 2.01. Designation, Amount and Issuance of Notes 12 SECTION 2.02. Form of

June 3, 2019 EX-10.2

Form of Convertible Note Hedge Transaction Confirmation (filed as Exhibit 10.2 to InterDigital’s Current Report on Form 8-K filed on June 3, 2019, and incorporated herein by reference).

EX-10.2 Exhibit 10.2 [Dealer Address] DATE: May 29, 2019 TO: InterDigital, Inc. ATTENTION: Richard Brezski TELEPHONE: (+1) 302.281.3621 FACSIMILE: (+1) 302-281-3761 FROM: [ ] ATTENTION: [ ] TELEPHONE: [ ] FACSIMILE: [ ] SUBJECT: Bond Hedge Transaction1 The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the transaction entered into between [Dealer]

June 3, 2019 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 29, 2019 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction of Incorporation) (Commission File

June 3, 2019 EX-10.1

Purchase Agreement, dated May 29, 2019, between InterDigital and Barclays Capital Inc., as representative of the several initial purchasers named in Schedule I attached thereto (Exhibit 10.1 to InterDigital's Current Report on Form 8-K dated May 29, 2019).

EX-10.1 Exhibit 10.1 Execution Version $350,000,000 INTERDIGITAL, INC. 2.00% SENIOR CONVERTIBLE NOTES DUE 2024 PURCHASE AGREEMENT May 29, 2019 BARCLAYS CAPITAL INC. As Representative of the several Initial Purchasers named in Schedule I attached hereto c/o Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 Ladies and Gentlemen: InterDigital, Inc., a Pennsylvania corporation (the “Co

June 3, 2019 EX-10.4

Form of Unwind Agreement (Exhibit 10.4 to InterDigital's Current Report on Form 8-K dated May 29, 2019).

EX-10.4 Exhibit 10.4 PARTIAL UNWIND AGREEMENT with respect to the Base Call Option Transaction Confirmation, dated March 5, 2015 and the Base Warrant Confirmation, dated March 5, 2015 between InterDigital, Inc. and [Dealer] THIS PARTIAL UNWIND AGREEMENT (this “Agreement”) with respect to the Base Call Option Transaction Confirmation (as defined below) and the Base Warrant Confirmation (as defined

June 3, 2019 EX-10.3

Form of Warrant Transaction Confirmation (Exhibit 10.3 to InterDigital's Current Report on Form 8-K dated May 29, 2019).

EX-10.3 Exhibit 10.3 THE SECURITIES REPRESENTED HEREBY (THE “WARRANTS”) WERE ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND THE WARRANTS MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO A REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR AN APPLICABLE EXEMPTION FROM THE REGISTRA

May 31, 2019 SD

IDCC / InterDigital, Inc. SD - - FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT InterDigital, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 1-33579 82-4936666 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 200 Bellevue Parkway, Suite 300, Wilmington, DE 19809 (Address of p

May 29, 2019 EX-99.1

INTERDIGITAL ANNOUNCES $100 MILLION INCREASE TO SHARE BUYBACK AUTHORIZATION

EX-99.1 Exhibit 99.1 News Release INTERDIGITAL ANNOUNCES $100 MILLION INCREASE TO SHARE BUYBACK AUTHORIZATION WILMINGTON, DEL. – May 29, 2019 –– InterDigital, Inc. (NASDAQ:IDCC), a mobile technology research and development company, today announced that the company’s Board of Directors has authorized a $100 million increase to the company’s existing stock repurchase program. The Board authorized a

May 29, 2019 8-K

Financial Statements and Exhibits, Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 29, 2019 INTERDIGITAL, INC. (Exact name of Registrant as Specified in Charter) Pennsylvania 1-33579 82-4936666 (State or Other Jurisdiction (Commission (I.R.S. Employer of Inc

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