STMP / Stamps.com Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Stamps.com Inc.
US ˙ NASDAQ ˙ US8528572006
HINDI NA ACTIVE ANG SIMBONG ITO

Mga Batayang Estadistika
LEI 5299008VAXLEGU4Y4038
CIK 1082923
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 Stamps.com 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.
October 18, 2021 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 000-26427 Stamps.com Inc. (Exact name of registrant as specified in its char

October 13, 2021 SC 13G

STMP / Stamps.com Inc. / INTEGRATED CORE STRATEGIES (US) LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 STAMPS.COM INC. (Name of Issuer) COMMON STOCK, PAR VALUE $0.001 PER SHARE (Title of Class of Securities) 852857200 (CUSIP Number) OCTOBER 4, 2021 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to which this

October 5, 2021 EX-3.1

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION STAMPS.COM INC. ARTICLE ONE

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF STAMPS.COM INC. ARTICLE ONE The name of the corporation is Stamps.com Inc. (the "Corporation"). ARTICLE TWO The address of the Corporation's registered office in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle, 19801. The name of its registered agent at such address is The Corporation Trus

October 5, 2021 POS AM

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 5, 2021 S-8 POS

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 5, 2021 EX-3.2

AMENDED AND RESTATED BY-LAWS STAMPS.COM INC. A Delaware corporation (Adopted as of October 5, 2021) ARTICLE I

Exhibit 3.2 AMENDED AND RESTATED BY-LAWS OF STAMPS.COM INC. A Delaware corporation (Adopted as of October 5, 2021) ARTICLE I OFFICES Section 1 Registered Office. The registered office of the corporation in the State of Delaware shall be located at 1209 Orange Street, city of Wilmington, Delaware, 19801, County of New Castle. The name of the corporation's registered agent at such address shall be T

October 5, 2021 POS AM

As filed with the Securities and Exchange Commission on October 5, 2021

POS AM 1 ny20000915x3-x4posam.htm FORM POS AM As filed with the Securities and Exchange Commission on October 5, 2021 Registration No. 333-202161 Registration No. 333-43950 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 (333-202161) POST-EFFECTIVE AMENDMENT NO. 1 (333-43950) TO FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

October 5, 2021 S-8 POS

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 5, 2021 S-8 POS

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 5, 2021 S-8 POS

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 5, 2021 8-K

Regulation FD Disclosure, Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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): October 5, 2021 Stamps.com Inc. (Exact name of registrant as specified in charter) Delaware 000-26427 77-0454966 (State or Other Jurisdiction of Incorporation) (Commission File Number

October 5, 2021 EX-99.1

Thoma Bravo Completes Acquisition of Stamps.com

Exhibit 99.1 Thoma Bravo Completes Acquisition of Stamps.com EL SEGUNDO, Calif. & SAN FRANCISCO ? October 5, 2021 ? Thoma Bravo, a leading software investment firm, and Stamps.com, a leading provider of e-commerce shipping solutions, today announced the completion of Thoma Bravo?s acquisition of Stamps.com for approximately $6.6 billion in cash. The acquisition was previously announced on July 9,

October 5, 2021 S-8 POS

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 5, 2021 S-8 POS

As filed with the Securities and Exchange Commission on October 5, 2021

As filed with the Securities and Exchange Commission on October 5, 2021 Registration No.

October 1, 2021 EX-99.1

Stamps.com Stockholders Approve Merger with Thoma Bravo

Stamps.com Stockholders Approve Merger with Thoma Bravo El Segundo and San Francisco, CA ? September 30, 2021 ? Stamps.com? (NASDAQ: STMP) (the ?Company?), a leading provider of e-commerce shipping solutions, today announced that at a special meeting of stockholders held on September 30, 2021 (the ?Special Meeting?), the stockholders of the Company voted to approve a proposal to adopt the merger a

October 1, 2021 8-K

Financial Statements and Exhibits, 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): September 30, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File

September 22, 2021 8-K

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): September 22, 2021 Stamps.com Inc. (Exact name of registrant as specified in charter) Delaware 000-26427 77-0454966 (State or Other Jurisdiction of Incorporation) (Commission File Num

September 22, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 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)(2)) ? Definitive Proxy Stat

September 9, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 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)(2)) ? Definitive Proxy Stat

August 30, 2021 DEFM14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 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)(2)) ? D

August 19, 2021 DEFA14A

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): August 18, 2021 Stamps.com Inc. (

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): August 18, 2021 Stamps.com Inc. (Exact name of registrant as specified in charter) Delaware 000-26427 77-0454966 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 19, 2021 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): August 18, 2021 Stamps.com Inc. (Exact name of registrant as specified in charter) Delaware 000-26427 77-0454966 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 19, 2021 PREM14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 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)(2)) ?? D

August 19, 2021 EX-99.1

Stamps.com Inc Announces Expiration of “Go-Shop” Period

Exhibit 99.1 Stamps.com Inc Announces Expiration of ?Go-Shop? Period El Segundo and San Francisco, CA ? August 18, 2021 ? Stamps.com(R) (NASDAQ: STMP) (the ?Company?), a leading provider of e-commerce shipping solutions, today announced the expiration of the 40-day ?go-shop? period under the terms of the previously announced merger agreement, pursuant to which Thoma Bravo, a leading software inves

August 6, 2021 10-Q

_______________________________________________________________________________________________________________________ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? 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: 000-26427 Stamps.com

August 5, 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): August 5, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Num

August 5, 2021 EX-99.1

STAMPS.COM REPORTS SECOND QUARTER RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS SECOND QUARTER RESULTS El Segundo, CA - August 5, 2021 - Stamps.com? (Nasdaq: STMP), a leading provider of e-commerce shipping solutions, today announced results for the quarter ended June 30, 2021. Sec

July 30, 2021 EX-99.1

IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE

IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE MACOMB COUNTY EMPLOYEES? RETIREMENT SYSTEM, derivatively on behalf of Nominal Defendant, STAMPS.

July 30, 2021 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): July 27, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

July 12, 2021 DEFA14A

UNITED STATES

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)

July 12, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

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)

July 9, 2021 DEFA14A

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): July 8, 2021

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): July 8, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numbe

July 9, 2021 EX-10.4

VOTING AGREEMENT

Exhibit 10.4 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-10.1

VOTING AGREEMENT

Exhibit 10.1 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 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): July 8, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numbe

July 9, 2021 EX-99.1

Stamps.com Enters Definitive Agreement to be Acquired by Thoma Bravo in $6.6 Billion Transaction Stamps.com Stockholders to Receive $330.00 Per Share in Cash

Exhibit 99.1 Stamps.com Enters Definitive Agreement to be Acquired by Thoma Bravo in $6.6 Billion Transaction Stamps.com Stockholders to Receive $330.00 Per Share in Cash El Segundo and San Francisco, CA ? July 9, 2021 ? Stamps.com? (NASDAQ: STMP) (the ?Company?), a leading provider of e-commerce shipping solutions, today announced that it has entered into a definitive agreement to be acquired by

July 9, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): July 8, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numbe

July 9, 2021 EX-10.3

VOTING AGREEMENT

Exhibit 10.3 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among STAMPS.COM INC., a Delaware corporation; STREAM PARENT, LLC, a Delaware limited liability company; and STREAM MERGER SUB, INC., a Delaware corporation Dated as of July 8, 2021 TABLE OF CONTENTS

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among STAMPS.COM INC., a Delaware corporation; STREAM PARENT, LLC, a Delaware limited liability company; and STREAM MERGER SUB, INC., a Delaware corporation Dated as of July 8, 2021 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS & INTERPRETATIONS 2 1.1 Certain Definitions 2 1.2 Additional Definitions 15 1.3 Certain Interpretations 18

July 9, 2021 EX-10.5

VOTING AGREEMENT

Exhibit 10.5 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-10.4

VOTING AGREEMENT

Exhibit 10.4 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-10.3

VOTING AGREEMENT

Exhibit 10.3 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-10.5

VOTING AGREEMENT

Exhibit 10.5 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 DEFA14A

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): July 8, 2021

falseDE0001082923NASDAQ00010829232021-07-082021-07-08 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 9, 2021 EX-10.1

VOTING AGREEMENT

Exhibit 10.1 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-10.2

Execution Version VOTING AGREEMENT

Exhibit 10.2 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

July 9, 2021 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among STAMPS.COM INC., a Delaware corporation; STREAM PARENT, LLC, a Delaware limited liability company; and STREAM MERGER SUB, INC., a Delaware corporation Dated as of July 8, 2021 TABLE OF CONTENTS

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among STAMPS.COM INC., a Delaware corporation; STREAM PARENT, LLC, a Delaware limited liability company; and STREAM MERGER SUB, INC., a Delaware corporation Dated as of July 8, 2021 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS & INTERPRETATIONS 2 1.1 Certain Definitions 2 1.2 Additional Definitions 15 1.3 Certain Interpretations 18

July 9, 2021 EX-99.1

Stamps.com Enters Definitive Agreement to be Acquired by Thoma Bravo in $6.6 Billion Transaction Stamps.com Stockholders to Receive $330.00 Per Share in Cash

Exhibit 99.1 Stamps.com Enters Definitive Agreement to be Acquired by Thoma Bravo in $6.6 Billion Transaction Stamps.com Stockholders to Receive $330.00 Per Share in Cash El Segundo and San Francisco, CA ? July 9, 2021 ? Stamps.com? (NASDAQ: STMP) (the ?Company?), a leading provider of e-commerce shipping solutions, today announced that it has entered into a definitive agreement to be acquired by

July 9, 2021 EX-10.2

Execution Version VOTING AGREEMENT

Exhibit 10.2 Execution Version VOTING AGREEMENT This Voting Agreement (this ?Agreement?) is made and entered into as of July 8, 2021 (the ?Agreement Date?), by and among Stream Parent, LLC, a Delaware limited liability company (?Parent?), Stamps.com Inc., a Delaware corporation (the ?Company?), and the undersigned stockholder set forth on the signature page hereto (the ?Stockholder?). Each of Pare

June 11, 2021 8-K

Financial Statements and Exhibits, 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 9, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numbe

June 4, 2021 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): May 28, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numbe

May 28, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 ---------------------------------------

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1990 E. Grand Avenue, El Segundo, CA 90245 (Address of principal executive office

May 7, 2021 EX-99.1

STAMPS.COM REPORTS FIRST QUARTER 2021 RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FIRST QUARTER 2021 RESULTS El Segundo, CA - May 6, 2021 - Stamps.com? (Nasdaq: STMP), the leading provider of e-commerce shipping solutions, today announced results for the quarter ended March 31, 2021.

May 7, 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): May 6, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Number

May 7, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? 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: 000-26427 Stamps.co

April 30, 2021 DEF 14A

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

April 16, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Stamps.com Inc. Title of Class of Securities: Common Stock CUSIP Number: 852857200 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: ☒ Rul

March 18, 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

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): March 12, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Num

March 2, 2021 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 26, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File

March 2, 2021 EX-99.1

STAMPS.COM DOUBLES CURRENT SHARE REPURCHASE PROGRAM TO $120 MILLION

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM DOUBLES CURRENT SHARE REPURCHASE PROGRAM TO $120 MILLION El Segundo, CA – March 2, 2021 – Stamps.com® (Nasdaq: STMP) today announced that on February 26, 2021, the Company increased its current share repurchase

February 26, 2021 EX-24.2

POWER OF ATTORNEY

EX-24.2 7 a12312020ex24210k.htm EX-24.2 Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendme

February 26, 2021 EX-24.5

POWER OF ATTORNEY

EX-24.5 10 a12312020ex24510k.htm EX-24.5 Exhibit 24.5 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendm

February 26, 2021 EX-24.4

POWER OF ATTORNEY

Exhibit 24.4 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 26, 2021 EX-24.3

EX-24.3

EX-24.3 8 a12312020ex24310k.htm EX-24.3 Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendme

February 26, 2021 EX-24.1

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 26, 2021 EX-10.5

STAMPS.COM INC. 1999 EMPLOYEE STOCK PURCHASE PLAN (As Amended through October 24, 2018) (Share amounts have not been revised to reflect the one-for-two reverse stock split effected May 12, 2004)

EX-10.5 3 a12312020ex10510k.htm EX-10.5 STAMPS.COM INC. 1999 EMPLOYEE STOCK PURCHASE PLAN (As Amended through October 24, 2018) (Share amounts have not been revised to reflect the one-for-two reverse stock split effected May 12, 2004) I. PURPOSE OF THE PLAN This Employee Stock Purchase Plan is intended to promote the interests of Stamps.com Inc., a Delaware corporation, by providing eligible emplo

February 26, 2021 10-K

Annual Report - 10-K

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? 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: 000-26

February 26, 2021 EX-4.2

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.2 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Stamps.com Inc. (?Stamps.com,? ?we? or ?us?) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): our common stock, par value $0.001 per share (the ?common stock?). DESCRIPTION OF COMMON STOCK The

February 26, 2021 EX-21

LIST OF SUBSIDIARIES

Exhibit 21 LIST OF SUBSIDIARIES Stamps.com Inc.?s subsidiaries other than certain subsidiaries which, considered in the aggregate as a single subsidiary, would not constitute a "significant subsidiary" (as defined in Rule 1-02(w) of Regulation S-X) as of December 31, 2020, are as set forth below. Stamps.com Inc.'s direct wholly owned subsidiaries include: Auctane LLC, a Texas limited liability com

February 17, 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 17, 2021 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File

February 17, 2021 EX-99.1

STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2020 RESULTS Company Reaches Milestone of Over 1 Million Paid Customers Worldwide

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2020 RESULTS Company Reaches Milestone of Over 1 Million Paid Customers Worldwide El Segundo, CA – February 17, 2021 – Stamps.com® (Nasdaq: STMP), the leading provider of posta

February 16, 2021 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

February 16, 2021 EX-99.2

JOINT FILING AGREEMENT

Exhibit 2 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock, $0.

February 16, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 4) Under the Securities Exchange Act of 1934 Stamps.com Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) (CUSIP Number) December

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 4) Under the Securities Exchange Act of 1934 Stamps.com Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 852857200 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the following box to designate the rule pursuant to which the Schedul

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.: 6)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Stamps.com Inc. Title of Class of Securities: Common Stock CUSIP Number: 852857200 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: ☒ Rul

November 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ 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: 000-26427 Stamp

November 6, 2020 EX-99.1

STAMPS.COM REPORTS THIRD QUARTER RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS THIRD QUARTER RESULTS El Segundo, CA – November 5, 2020 – Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quarter ended Septembe

November 6, 2020 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): November 5, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

August 7, 2020 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): August 6, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Num

August 7, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ 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: 000-26427 Stamps.com

August 7, 2020 EX-99.1

STAMPS.COM REPORTS SECOND QUARTER RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS SECOND QUARTER RESULTS El Segundo, CA - August 6, 2020 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quarter ended June 30,

July 6, 2020 EX-10.2

REAFFIRMATION AND AMENDMENT AGREEMENT

EX-10.2 3 ex102.htm EXHIBIT 10.2 Exhibit 10.2 EXECUTION VERSION REAFFIRMATION AND AMENDMENT AGREEMENT THIS REAFFIRMATION AND AMENDMENT AGREEMENT, dated as of June 29, 2020 (as amended, restated, supplemented or otherwise modified from time to time, this “Agreement”), is entered into by and among STAMPS.COM INC., a Delaware corporation (the “Borrower”), the Subsidiaries of the Borrower identified o

July 6, 2020 EX-10.1

AMENDED AND RESTATED CREDIT AGREEMENT dated as of June 29, 2020 by and among STAMPS.COM INC., as Borrower, the Lenders referred to herein, as Lenders, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent, Swingline Lender and Issuing Lende

Exhibit 10.1 Certain identified information has been omitted from this document because it is both not material and would be competitively harmful if publicly disclosed, and had been marked with “[***]” to indicate where omissions have been made. EXECUTION VERSION Published CUSIP Number: 85285TAD5 Revolving Credit CUSIP Number: 85285TAE3 $130,000,000 AMENDED AND RESTATED CREDIT AGREEMENT dated as

July 6, 2020 8-K

Entry into a Material Definitive Agreement, 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): June 29, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

June 16, 2020 8-K

Financial Statements and Exhibits, 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 10, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

June 1, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1990 E. Grand Avenue, El Segundo, CA 90245 (Address of principal executive office

May 8, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ 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: 000-26427 Stamps.co

May 7, 2020 EX-99.1

STAMPS.COM REPORTS FIRST QUARTER RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FIRST QUARTER RESULTS El Segundo, CA - May 7, 2020 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quarter ended March 31, 202

May 7, 2020 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): May 7, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Number

April 29, 2020 DEF 14A

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

April 9, 2020 8-K

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

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): April 3, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

March 2, 2020 10-K

Annual Report - 10-K

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ 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: 000-26

March 2, 2020 EX-4.2

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Stamps.com Inc. (“Stamps.com,” “we” or “us”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $0.001 per share (the “common stock”). DESCRIPTION OF COMMON STOCK The

March 2, 2020 EX-24.1

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 2, 2020 EX-21

LIST OF SUBSIDIARIES

Exhibit 21 LIST OF SUBSIDIARIES Stamps.com Inc.’s subsidiaries other than certain subsidiaries which, considered in the aggregate as a single subsidiary, would not constitute a "significant subsidiary" (as defined in Rule 1-02(w) of Regulation S-X) as of December 31, 2019, are as set forth below. Stamps.com Inc.'s direct wholly owned subsidiaries include: Auctane LLC, a Texas limited liability com

March 2, 2020 EX-24.4

POWER OF ATTORNEY

Exhibit 24.4 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 2, 2020 EX-24.2

POWER OF ATTORNEY

Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 2, 2020 EX-24.3

POWER OF ATTORNEY

Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 2, 2020 EX-24.5

POWER OF ATTORNEY

Exhibit 24.5 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 19, 2020 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 19, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File

February 19, 2020 EX-99.1

STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2019 RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2019 RESULTS El Segundo, CA - February 19, 2020 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the four

February 14, 2020 EX-99.3

JOINT FILING AGREEMENT

Exhibit 3 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock, $0.

February 14, 2020 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

February 14, 2020 SC 13G/A

STMP / Stamps.com, Inc. / Okumus Fund Management Ltd. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 14, 2020 SC 13G/A

STMP / Stamps.com, Inc. / D. E. SHAW & CO, L.P. - SC 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 3) Under the Securities Exchange Act of 1934 Stamps.com Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 852857200 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the following box to designate the rule pursuant to which the Schedul

February 14, 2020 EX-99.2

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 2 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

February 12, 2020 SC 13G/A

STMP / Stamps.com, 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.: 5)* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 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: ☒ Rule

January 29, 2020 CORRESP

STMP / Stamps.com, Inc. CORRESP - -

Stamps.com Inc. 1990 E. Grand Avenue El Segundo, CA 90245 January 29, 2020 VIA EDGAR CORRESPONDENCE Ms. Theresa Brillant & Mr. Doug Jones U.S. Securities and Exchange Commission Division of Corporation Finance, Office of Trade & Services Washington, DC 20549 Re: Stamps.com Inc. Form 10-K for Fiscal Year Ended December 31, 2018 Filed March 1, 2019 File No. 000-26427 Dear Ms. Brillant & Mr. Jones: O

January 24, 2020 8-K

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

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 17, 2020 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

January 7, 2020 CORRESP

STMP / Stamps.com, Inc. CORRESP - -

STAMPS.COM INC. January 6, 2020 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Trade & Services Washington, D.C. 20549 Attention: Theresa Brillant; and Doug Jones. Dear Ms. Brillant and Mr. Jones: Stamps.com Inc. (“Stamps.com”) is in receipt of the letter from the Staff of the Securities and Exchange Commission, dated December 30, 2019, regardi

November 18, 2019 SC 13G/A

STMP / Stamps.com, Inc. / D. E. SHAW & CO, L.P. - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 2) Under the Securities Exchange Act of 1934 Stamps.com Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 852857200 (CUSIP Number) November 8, 2019 (Date of Event Which Requires Filing of this Statement) Check the following box to designate the rule pursuant to which the Schedule

November 18, 2019 EX-99.3

JOINT FILING AGREEMENT

Exhibit 3 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock, $0.

November 18, 2019 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

November 18, 2019 EX-99.2

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 2 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

November 12, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ 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: 000-26427 Stamp

November 7, 2019 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): November 7, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

November 7, 2019 EX-99.1

STAMPS.COM REPORTS THIRD QUARTER RESULTS

EX-99.1 2 exh99-2019q3earningsre.htm EXHIBIT 99.1 Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS THIRD QUARTER RESULTS El Segundo, CA - November 7, 2019 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, toda

November 6, 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

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): October 31, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

October 15, 2019 EX-99.3

JOINT FILING AGREEMENT

Exhibit 3 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock, $0.

October 15, 2019 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

October 15, 2019 EX-99.2

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 2 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

October 15, 2019 SC 13G/A

STMP / Stamps.com, Inc. / D. E. SHAW & CO, L.P. - SC 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 1) Under the Securities Exchange Act of 1934 Stamps.com Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 852857200 (CUSIP Number) October 4, 2019 (Date of Event Which Requires Filing of this Statement) Check the following box to designate the rule pursuant to which the Schedule

September 28, 2019 S-8

STMP / Stamps.com, Inc. S-8 - - S-8

As filed with the Securities and Exchange Commission on September 27, 2019 Registration No.

August 8, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ 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: 000-26427 Stamps.com

August 7, 2019 EX-99.1

STAMPS.COM REPORTS SECOND QUARTER RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS SECOND QUARTER RESULTS El Segundo, CA - August 7, 2019 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quarter ended June 30,

August 7, 2019 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): August 7, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorpo

July 5, 2019 SC 13G

STMP / Stamps.com, Inc. / D. E. SHAW & CO, L.P. - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Stamps.com Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 852857200 (CUSIP Number) June 24, 2019 (Date of Event Which Requires Filing of this Statement) Check the following box to designate the rule pursuant to which the Schedule is filed: ¨ Rule 13d

July 5, 2019 EX-99.1

POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940

Exhibit 1 POWER OF ATTORNEY FOR CERTAIN REGULATORY FILINGS INCLUDING CERTAIN FILINGS UNDER THE SECURITIES EXCHANGE ACT OF 1934 AND THE INVESTMENT ADVISERS ACT OF 1940 I, David E.

July 5, 2019 EX-99.2

JOINT FILING AGREEMENT

EX-99.2 3 tv524833ex-2.htm EXHIBIT 2 Exhibit 2 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common St

June 14, 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 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorpor

May 30, 2019 SD

STMP / Stamps.com, Inc. SD - - SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1990 E. Grand Avenue, El Segundo, CA 90245 (Address of principal executive office

May 15, 2019 SC 13G

STMP / Stamps.com, Inc. / Okumus Fund Management Ltd. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

May 10, 2019 10-Q

Quarterly Report - 10-Q

10-Q 1 stmp-3311910q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 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 fi

May 8, 2019 EX-99.1

STAMPS.COM REPORTS FIRST QUARTER RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FIRST QUARTER RESULTS El Segundo, CA - May 8, 2019 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quarter ended March 31, 201

May 8, 2019 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): May 8, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporat

April 30, 2019 DEF 14A

STMP / Stamps.com, Inc. DEF 14A DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

April 11, 2019 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, 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): April 5, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorpor

April 4, 2019 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, 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): March 29, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Num

March 11, 2019 SC 13G/A

STMP / Stamps.com, Inc. / VANGUARD GROUP INC Passive Investment

stampscominc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 Date of Event Which Requires Filing of this Statement: February 28, 2019 Check the appropriate box to desig

March 1, 2019 EX-24.2

POWER OF ATTORNEY

Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 1, 2019 EX-24.4

POWER OF ATTORNEY

EX-24.4 11 ex24-4.htm EXHIBIT 24.4 Exhibit 24.4 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments t

March 1, 2019 EX-24.1

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 1, 2019 EX-10.38

STAMPS.COM INC. 2018 METAPACK EQUITY INDUCEMENT PLAN

STAMPS.COM INC. 2018 METAPACK EQUITY INDUCEMENT PLAN 1.PURPOSE. The purpose of this Plan is to attract, motivate, and retain Employees of Stamps.com Inc. and its Subsidiaries by offering selected Employees the opportunity to acquire proprietary interests in the Company by purchasing or receiving shares of the Company's Stock or other similar rights and to promote the success of the Company. This P

March 1, 2019 EX-24.3

POWER OF ATTORNEY

Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 1, 2019 EX-10.39

STAMPS.COM INC. 2018 METAPACK EQUITY INDUCEMENT PLAN FORM OF STOCK OPTION AGREEMENT

STAMPS.COM INC. 2018 METAPACK EQUITY INDUCEMENT PLAN FORM OF STOCK OPTION AGREEMENT ("you") You have been granted an option (this "Option") to purchase Common Stock of Stamps.com Inc., a Delaware corporation (the "Company"), under the Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (as amended or supplemented, the "Plan"), as follows: Award ID: Date of Grant: Vesting Commencement Date: Exerci

March 1, 2019 EX-21

LIST OF SUBSIDIARIES

Exhibit 21 LIST OF SUBSIDIARIES Stamps.com Inc.’s direct wholly owned subsidiaries are: PhotoStamps Inc., a California corporation; Auctane LLC, a Texas limited liability company, d/b/a ShipStation; Interapptive Inc., a Missouri corporation, d/b/a ShipWorks; PSI Systems, Inc., a California corporation d/b/a Endicia; ShippingEasy Group, Inc., a Delaware corporation; ShipEngine Inc., a Delaware corp

March 1, 2019 10-K

Form 10-K for the fiscal year ended December 31, 2018

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 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: 000-26

March 1, 2019 EX-10.40

STAMPS.COM INC. 2018 METAPACK EQUITY INDUCEMENT PLAN FORM OF AWARD AGREEMENT UK CSOP

STAMPS.COM INC. 2018 METAPACK EQUITY INDUCEMENT PLAN FORM OF AWARD AGREEMENT UK CSOP ("you") The definitions used in this Award Agreement shall have the same meanings as set out in the Plan and Schedule 1 to the Plan unless otherwise specified below. You have been granted a CSOP Option to purchase Shares under the Plan, as follows: Award ID: Date of Grant: Vesting Commencement Date: Type of Option

March 1, 2019 EX-10.7

STAMPS.COM INC. FORM OF INDUCEMENT STOCK OPTION AGREEMENT

EX-10.7 2 ex10-7.htm EXHIBIT 10.7 STAMPS.COM INC. FORM OF INDUCEMENT STOCK OPTION AGREEMENT (“you“) As an inducement for you to accept employment with Stamps.com Inc., a Delaware corporation (the “Company”), you have been granted an option (the “Option”) to purchase shares of Common Stock of the Company on the terms and conditions set forth in this Agreement. The Option is not granted under any eq

February 22, 2019 EX-99

STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2018 RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2018 RESULTS El Segundo, CA - February 21, 2019 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quar

February 22, 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, 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, 2019 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of inco

February 11, 2019 SC 13G/A

STMP / Stamps.com, Inc. / VANGUARD GROUP INC Passive Investment

stampscominc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3 )* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to desig

January 15, 2019 CORRESP

STMP / Stamps.com, Inc.

Stamps.com Inc. 1990 E. Grand Avenue El Segundo, CA 90245 January 15, 2019 VIA EDGAR CORRESPONDENCE Mr. William H. Thompson Accounting Branch Chief, Office of Consumer Products U.S. Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F Street, N.E. Washington, DC 20549 Re: Stamps.com Inc. Form 10-K for Fiscal Year Ended December 31, 2017 Filed February 28, 2018 Fo

December 18, 2018 CORRESP

STMP / Stamps.com, Inc.

STAMPS.COM INC. December 18, 2018 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Consumer Products Washington, D.C. 20549 Attention: William H. Thompson, Accounting Branch Chief Scott Stringer, Staff Accountant Dear Mr. Thompson and Mr. Stringer: Stamps.com Inc. (“Stamps.com”) is in receipt of the letter from the Staff of the Securities and Exc

November 9, 2018 10-Q

STMP / Stamps.com, Inc. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 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: 000-26427 Stamp

November 9, 2018 EX-3.(II).1

AMENDED AND RESTATED STAMPS.COM INC. (as amended and restated November 7, 2018) ARTICLE I

AMENDED AND RESTATED BYLAWS OF STAMPS.COM INC. (as amended and restated November 7, 2018) ARTICLE I OFFICES Section 1. Registered Office. The registered office of the Corporation shall be as set forth in its certificate of incorporation. Section 2. Other Offices. The Corporation may also have offices at such other places both within and without the State of Delaware as the Board of Directors may f

October 31, 2018 EX-99.1

1 – 2

Exhibit 99.1 Financial Statements MetaPack Limited For the year ended 31 March 2018 MetaPack Limited Contents Page Independent auditor's report 1 – 2 Consolidated income statement 3 Consolidated statement of comprehensive income 4 Consolidated statement of financial position 5 Consolidated cash flow statement 6 Consolidated statement of changes in equity 7 Notes to the financial statements 8 – 32

October 31, 2018 8-K/A

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) 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 15, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation)

October 31, 2018 EX-99.2

STAMPS.COM INC. UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET AS OF JUNE 30, 2018 (In thousands)

Exhibit 99.2 Unaudited Pro Forma Condensed Combined Financial Statements On August 21, 2018, Stamps.com Inc. ("SDC") filed a Current Report on Form 8-K (the “Initial Filing”) to report that on August 15, 2018, SDC, through its wholly owned subsidiary Pacific Shelf 1855 Limited (“Pacific Shelf”) completed the acquisition of MetaPack Limited (“MetaPack”). The following unaudited pro forma condensed

October 31, 2018 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): October 31, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incor

October 31, 2018 EX-99.1

STAMPS.COM REPORTS THIRD QUARTER 2018 RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS THIRD QUARTER 2018 RESULTS El Segundo, CA - October 31, 2018 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software, today announced results for the quarter ended Sep

August 21, 2018 EX-99.2

STAMPS.COM ANNOUNCES COMPLETION OF METAPACK LTD. ACQUISITION

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM ANNOUNCES COMPLETION OF METAPACK LTD. ACQUISITION EL SEGUNDO, Calif., August 15, 2018 – Stamps.com® (Nasdaq:STMP) today announced that it has completed its acquisition of MetaPack Ltd., a United Kingd

August 21, 2018 EX-99.1

Dated 24 July 2018 (1) THE KEY SELLERS BEING THE PERSONS WHOSE NAMES AND ADDRESSES ARE SET OUT IN SCHEDULE 1, PART 1 (2) METAPACK LIMITED (3) PACIFIC SHELF 1855 LIMITED (4) THE GUARANTOR SHARE PURCHASE AGREEMENT for the sale and purchase of the entir

EX-99.1 2 stamps-exh991toform8xkxspa.htm EXHIBIT 99.1 Confidential Portions of this Exhibit marked as [***] have been omitted pursuant to a request for confidential treatment and have been filed separately with the Securities and Exchange Commission. Further, certain portions this Exhibit have been omitted pursuant to Item 601(b)(2) of Regulation S-K. Dated 24 July 2018 (1) THE KEY SELLERS BEING T

August 21, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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): August 15, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Nu

August 8, 2018 10-Q

STMP / Stamps.com, Inc. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 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: 000-26427 Stamps.com

August 1, 2018 EX-99.1

STAMPS.COM REPORTS SECOND QUARTER 2018 RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS SECOND QUARTER 2018 RESULTS El Segundo, CA - August 1, 2018 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software solutions to over 725 thousand customers, today ann

August 1, 2018 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): August 1, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorpo

July 30, 2018 EX-99.1

STAMPS.COM ANNOUNCES DEFINITIVE AGREEMENT TO ACQUIRE LEADING UK-BASED E-COMMERCE SHIPPING SOFTWARE COMPANY METAPACK LTD.

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM ANNOUNCES DEFINITIVE AGREEMENT TO ACQUIRE LEADING UK-BASED E-COMMERCE SHIPPING SOFTWARE COMPANY METAPACK LTD. EL SEGUNDO, Calif., July 25, 2018 - Stamps.com® (Nasdaq:STMP) today announced that it has

July 30, 2018 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): July 24, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

June 12, 2018 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 11, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorpor

May 31, 2018 SD

STMP / Stamps.com, Inc. 2017 FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1990 E. Grand Avenue, El Segundo, CA 90245 (Address of principal executive office

May 10, 2018 10-Q

STMP / Stamps.com, Inc. FORM 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 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: 000-26427 Stamps.co

May 3, 2018 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): May 3, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporat

May 3, 2018 EX-99.1

STAMPS.COM REPORTS FIRST QUARTER 2018 RESULTS

Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FIRST QUARTER 2018 RESULTS El Segundo, CA - May 3, 2018 - Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software solutions to over 725 thousand customers, today announc

April 30, 2018 DEF 14A

10.23

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

April 5, 2018 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, 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): March 28, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorpo

February 28, 2018 EX-24

EX-24

LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS Know all persons by these presents that the undersigned hereby makes, constitutes and appoints Matt Lipson, Sara Kani, Juliet Stone and David M.

February 28, 2018 10-K

STMP / Stamps.com, Inc. FORM 10-K (Annual Report)

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR  o 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: 000-2

February 28, 2018 EX-24.1

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 28, 2018 EX-24.3

POWER OF ATTORNEY

Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 28, 2018 EX-24.4

POWER OF ATTORNEY

Exhibit 24.4 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 28, 2018 EX-24.2

POWER OF ATTORNEY

Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 28, 2018 EX-21

LIST OF SUBSIDIARIES Stamps.com Inc.’s direct wholly owned subsidiaries are: PhotoStamps Inc., a California corporation; Auctane LLC, a Texas limited liability company, d/b/a ShipStation; Interapptive Inc., a Missouri corporation, d/b/a ShipWorks; PS

Exhibit 21 LIST OF SUBSIDIARIES Stamps.com Inc.’s direct wholly owned subsidiaries are: PhotoStamps Inc., a California corporation; Auctane LLC, a Texas limited liability company, d/b/a ShipStation; Interapptive Inc., a Missouri corporation, d/b/a ShipWorks; PSI Systems, Inc., a California corporation d/b/a Endicia; and ShippingEasy Group, Inc., a Delaware corporation. In addition, ShippingEasy, I

February 23, 2018 SC 13G/A

STMP / Stamps.com, Inc. / VANGUARD GROUP INC Passive Investment

stampscominc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3 )* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to desig

February 22, 2018 EX-99.1

STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2017 RESULTS

Exhibit 99.1 Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2017 RESULTS El Segundo, CA ? February 21, 2018 ? Stamps.com ? (Nasdaq: STMP), the leading provider of postage online and shipping software solutions to over 725 t

February 22, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 form8k.htm 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, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporati

February 12, 2018 SC 13G/A

STMP / Stamps.com, Inc. / VANGUARD GROUP INC Passive Investment

stampscominc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2 )* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to desig

January 16, 2018 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, 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 9, 2018 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Nu

November 9, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 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: 000-26427 Stamp

November 6, 2017 8-K

STMP / Stamps.com, Inc. 8-K (Current Report)

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): November 1, 2017 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

November 6, 2017 EX-99.1

STAMPS.COM REPORTS THIRD QUARTER 2017 RESULTS

EX-99.1 2 ex991.htm EXHIBIT 99.1 Exhibit 99.1 Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS THIRD QUARTER 2017 RESULTS El Segundo, CA – November 2, 2017 – Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software solu

August 8, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2017 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: 000-26427 Stamps.com

August 2, 2017 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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): July 31, 2017 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

August 2, 2017 EX-99.3

STAMPS.COM ANNOUNCES APPOINTMENT OF KYLE HUEBNER AS PRESIDENT; JEFF CARBERRY AS CFO; AND JR VEINGKEO AS CHIEF ACCOUNTING OFFICER

EX-99.3 4 ex993.htm EXHIBIT 99.3 Exhibit 99.3 Investor Contact: Press Contact: Suzanne Park Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM ANNOUNCES APPOINTMENT OF KYLE HUEBNER AS PRESIDENT; JEFF CARBERRY AS CFO; AND JR VEINGKEO AS CHIEF ACCOUNTING OFFICER El Segundo, CA – August 2, 2017 – Stamps.com®

August 2, 2017 EX-99.1

STAMPS.COM REPORTS SECOND QUARTER 2017 RESULTS

Exhibit 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS SECOND QUARTER 2017 RESULTS El Segundo, CA – August 2, 2017 – Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software solutions to over 725 thousand custom

August 2, 2017 EX-99.2

CONSULTING AGREEMENT

EX-99.2 3 ex992.htm EXHIBIT 99.2 Exhibit 99.2 CONSULTING AGREEMENT This Consulting Agreement (the “Agreement”) is entered into by and between James Bortnak (hereinafter “Consultant”) and Stamps.com Inc., along with its corporate affiliates, related entities, and their respective owners, officers, directors, shareholders, agents, employees, attorneys, and subsidiaries (hereinafter collectively refe

June 16, 2017 8-K

Submission of Matters to a Vote of Security Holders

8-K 1 form8k.htm 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): June 14, 2017 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation)

May 31, 2017 SD

Stamps.com SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 - (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1990 E. Grand Avenue, El Segundo, CA 90245 (Address of principal executive office

May 10, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2017 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: 000-26427 Stamps.co

May 9, 2017 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): May 3, 2017 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Number

May 9, 2017 EX-99.1

STAMPS.COM REPORTS FIRST QUARTER 2017 RESULTS

Exhibit 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FIRST QUARTER 2017 RESULTS El Segundo, CA – May 3, 2017 – Stamps.com® (Nasdaq: STMP), the leading provider of postage online and shipping software solutions to over 700 thousand customers,

May 1, 2017 DEF 14A

Stamps.com DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

April 25, 2017 8-K

Stamps.com 8-K (Current Report/Significant Event)

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): April 19, 2017 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Num

March 28, 2017 EX-99.6

STAMPS.COM INC. 2016 SHIPPINGEASY EQUITY INDUCEMENT PLAN

EX-99.6 4 ex996.htm EXHIBIT 99.6 Exhibit 99.6 STAMPS.COM INC. 2016 SHIPPINGEASY EQUITY INDUCEMENT PLAN 1. PURPOSE. The purpose of this Plan is to attract, motivate, and retain Employees of Stamps.com Inc. and its Subsidiaries by offering selected Employees the opportunity to acquire proprietary interests in the Company by purchasing or receiving shares of the Company's Stock or other similar right

March 28, 2017 EX-99.7

STAMPS.COM INC. 2016 EQUITY INDUCEMENT PLAN STOCK OPTION AGREEMENT

EX-99.7 5 ex997.htm EXHIBIT 99.7 Exhibit 99.7 STAMPS.COM INC. 2016 EQUITY INDUCEMENT PLAN STOCK OPTION AGREEMENT ("you") You have been granted an option (this "Option") to purchase Common Stock of Stamps.com Inc., a Delaware corporation (the "Company"), under the Stamps.com Inc. 2016 Equity Inducement Plan (as amended or supplemented, the "Plan"), as follows: Award ID: Date of Grant: Vesting Comme

March 28, 2017 S-8

Stamps.com STAMPS.COM INC S-8 3-28-2017

S-8 1 forms8.htm STAMPS.COM INC S-8 3-28-2017 As filed with the Securities and Exchange Commission on March 28, 2017 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 STAMPS.COM INC. (Exact name of registrant as specified in its charter) Delaware 77-0454966 (State or other jurisdiction of i

March 1, 2017 8-K

Stamps.com STAMPS.COM, INC 8-K 2-23-2017 (Current Report/Significant Event)

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, 2017 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File

March 1, 2017 EX-99.1

STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2016 RESULTS

Exhibit 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS FOURTH QUARTER AND FISCAL 2016 RESULTS El Segundo, CA ? February 23, 2017 ? Stamps.com? (Nasdaq: STMP), the leading provider of postage online and shipping software solutions to over 675 t

March 1, 2017 EX-24.4

POWER OF ATTORNEY

EX-24.4 8 ex244.htm EXHIBIT 24.4 Exhibit 24.4 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments the

March 1, 2017 EX-10.22

2014 AMENDMENT TO THE STAMPS.COM INC. 2010 EQUITY INCENTIVE PLAN

EX-10.22 2 ex1022.htm EXHIBIT 10.22 Exhibit 10.22 2014 AMENDMENT TO THE STAMPS.COM INC. 2010 EQUITY INCENTIVE PLAN Pursuant to Section 20.2 of the Stamps.com Inc. 2010 Equity Incentive Plan (the “Plan”), and the action of the Board of Directors of Stamps.com Inc. (the “Company”), the Company hereby adopts this Amendment to the Plan. This Amendment is effective September 9, 2014. Capitalized terms

March 1, 2017 EX-24.5

POWER OF ATTORNEY

Exhibit 24.5 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

March 1, 2017 EX-24.3

POWER OF ATTORNEY

EX-24.3 7 ex243.htm EXHIBIT 24.3 Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments the

March 1, 2017 EX-10.23

2016 AMENDMENT TO THE STAMPS.COM INC. 2010 EQUITY INCENTIVE PLAN

EX-10.23 3 ex1023.htm EXHIBIT 10.23 Exhibit 10.23 2016 AMENDMENT TO THE STAMPS.COM INC. 2010 EQUITY INCENTIVE PLAN Pursuant to Section 20.2 of the Stamps.com Inc. 2010 Equity Incentive Plan, as amended to date (the “Plan”), and the action of the Board of Directors of Stamps.com Inc. (the “Company”), the Company hereby adopts this Amendment to the Plan. This Amendment is effective April 28, 2016. C

March 1, 2017 EX-24.2

POWER OF ATTORNEY

EX-24.2 6 ex242.htm EXHIBIT 24.2 Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments the

March 1, 2017 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

10-K 1 form10k.htm STAMPS.COM INC. 10-K 12-31-2016 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from

March 1, 2017 EX-24.1

POWER OF ATTORNEY

EX-24.1 5 ex241.htm EXHIBIT 24.1 Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments the

February 22, 2017 SC 13G/A

STMP / Stamps.com, Inc. / Park West Asset Management LLC - STAMPS.COM 13G/AM1 Passive Investment

SC 13G/A 1 stamps13gam1dec312016.htm STAMPS.COM 13G/AM1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* STAMPS.COM, INC. (Name of Issuer) Common Stock, $0.001 par value per share (Title of Class of Securities) 852857200 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Stat

February 10, 2017 SC 13G/A

STMP / Stamps.com, Inc. / VANGUARD GROUP INC Passive Investment

stampscominc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 Date of Event Which Requires Filing of this Statement: December 31, 2016 Check the appropriate box to desig

January 24, 2017 CORRESP

Stamps.com ESP

Stamps.com Inc. 1990 E. Grand Avenue El Segundo, CA 90245 January 24, 2017 VIA EDGAR CORRESPONDENCE Mr. William H. Thompson Accounting Branch Chief, Office of Consumer Products U.S. Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F Street, N.E. Washington, DC 20549 Re: Stamps.com Inc. Form 10-K for Fiscal Year Ended December 31, 2015 Filed February 29, 2016 Fi

December 20, 2016 CORRESP

Stamps.com ESP

manatt manatt | phelps | phillips Ben Orlanski Manatt, Phelps & Phillips, LLP Direct Dial: (310) 312-4126 E-mail: BOrlanski@Manatt.

November 9, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2016 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: 000-26427 Stamp

November 4, 2016 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): November 3, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

November 4, 2016 EX-99.1

STAMPS.COM REPORTS THIRD QUARTER 2016 RESULTS Revenue up 79% to $92.6M GAAP EPS of $1.03; Non-GAAP Adjusted Income per Fully Diluted Share of $2.33

EX-99.1 2 ex991.htm EXHIBIT 99.1 Exhibit 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS THIRD QUARTER 2016 RESULTS Revenue up 79% to $92.6M GAAP EPS of $1.03; Non-GAAP Adjusted Income per Fully Diluted Share of $2.33 El Segundo, CA – November

October 31, 2016 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, 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): October 25, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File N

August 9, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2016 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: 000-26427 Stamps.com

August 9, 2016 EX-10.1

AGREEMENT AND PLAN OF MERGER by and among SHIPPINGEASY GROUP, INC. STAMPS.COM INC., SEG MERGER SUB, INC. Tim Jugmans, in its capacity as Representative Dated as of June 16, 2016 CONFIDENTIAL TREATMENT REQUESTED BY STAMPS.COM INC.

Exhibit 10.1 Confidential Portions of this Exhibit marked as [***] have been omitted pursuant to a request for confidential treatment and have been filed separately with the Securities and Exchange Commission. AGREEMENT AND PLAN OF MERGER by and among SHIPPINGEASY GROUP, INC. STAMPS.COM INC., SEG MERGER SUB, INC. and Tim Jugmans, in its capacity as Representative Dated as of June 16, 2016 CONFIDEN

August 9, 2016 EX-10.2

CONFIDENTIAL TREATMENT REQUESTED BY STAMPS.COM INC. MANAGEMENT INCENTIVE PLAN

EX-10.2 3 ex102.htm EXHIBIT 10.2 Exhibit 10.2 CONFIDENTIAL Confidential Portions of this Exhibit marked as [***] have been omitted pursuant to a request for confidential treatment and have been filed separately with the Securities and Exchange Commission. CONFIDENTIAL TREATMENT REQUESTED BY STAMPS.COM INC. MANAGEMENT INCENTIVE PLAN THIS MANAGEMENT INCENTIVE PLAN (this “Bonus Plan”), dated as of Ju

August 8, 2016 SC 13G

STMP / Stamps.com, Inc. / Park West Asset Management LLC Passive Investment

SC 13G 1 l83160sc13g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* STAMPS.COM, INC. (Name of Issuer) COMMON STOCK, $0.001 PAR VALUE PER SHARE (Title of Class of Securities) 852857200 (CUSIP Number) July 29, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to

July 29, 2016 8-K

Stamps.com STAMPS.COM INC 8-K 7-28-2016 (Current Report/Significant Event)

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): July 28, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

July 29, 2016 EX-99.1

STAMPS.COM REPORTS SECOND QUARTER 2016 RESULTS Revenue up 74% to $84.0M GAAP EPS of $0.79; Non-GAAP EPS of $1.94

Exhibit 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS SECOND QUARTER 2016 RESULTS Revenue up 74% to $84.0M GAAP EPS of $0.79; Non-GAAP EPS of $1.94 El Segundo, CA ? July 28, 2016 ? Stamps.com? (Nasdaq: STMP), the leading provider of postage o

June 21, 2016 EX-99.1

STAMPS.COM ANNOUNCES INTENTION TO ACQUIRE E-COMMERCE SOFTWARE COMPANY SHIPPINGEASY

EX-99.1 2 ex991.htm EXHIBIT 99.1 EXHIBIT 99.1 Stamps.com Investor Contact: Press Contact: Stamps.com Investor Relations Eric Nash (310) 482-5830 Stamps.com http://investor.stamps.com (310) 482-5942 [email protected] STAMPS.COM ANNOUNCES INTENTION TO ACQUIRE E-COMMERCE SOFTWARE COMPANY SHIPPINGEASY EL SEGUNDO, Calif. – June 20, 2016 – Stamps.com® (Nasdaq:STMP) today announced it has entered into a d

June 21, 2016 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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 16, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

June 15, 2016 8-K

Stamps.com STAMPS.COM INC 8-K 6-13-2016 (Current Report/Significant Event)

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 13, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Numb

May 27, 2016 SD

Stamps.com STAMPS.COM INC. SD 12-31-2015

SD 1 formsd.htm STAMPS.COM INC. SD 12-31-2015 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 1990 E. Grand Avenue, El Segundo, CA

May 10, 2016 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): May 9, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Number

May 10, 2016 EX-99.1

STAMPS.COM REPORTS RECORD FIRST QUARTER 2016 RESULTS Revenue up 86% to $81.8M; Non-GAAP EPS up 139% to $1.72

Exhibit 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS RECORD FIRST QUARTER 2016 RESULTS Revenue up 86% to $81.8M; Non-GAAP EPS up 139% to $1.72 El Segundo, CA ? May 9, 2016 ? Stamps.com? (Nasdaq: STMP), the leading provider of postage online

May 10, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2016 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: 000-26427 Stamps.co

April 29, 2016 DEF 14A

Stamps.com SCHEDULE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

April 20, 2016 8-K

Current Report

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): April 15, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File Num

March 3, 2016 SC 13D/A

STMP / Stamps.com, Inc. / Miller Lloyd I III - SC 13D/A Activist Investment

SC 13D/A 1 v433368sc13d-a.htm SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D/A (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 12)¹ Stamps.com Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 852857200 (CUSIP Number) Lloyd I. Miller, III, 3

February 29, 2016 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 25, 2016 Stamps.com Inc. (Exact name of registrant as specified in its charter) Delaware 000-26427 77-0454966 (State or other jurisdiction of incorporation) (Commission File

February 29, 2016 EX-99.1

STAMPS.COM REPORTS RECORD FOURTH QUARTER AND FISCAL 2015 RESULTS Revenue up 67% to $69.9M; Non-GAAP EPS up 119% to $1.57

EXHIBIT 99.1 Investor Contact: Press Contact: Jeff Carberry Eric Nash Stamps.com Investor Relations Stamps.com Public Relations (310) 482-5830 (310) 482-5942 [email protected] [email protected] STAMPS.COM REPORTS RECORD FOURTH QUARTER AND FISCAL 2015 RESULTS Revenue up 67% to $69.9M; Non-GAAP EPS up 119% to $1.57 El Segundo, CA ? February 25, 2016 ? Stamps.com? (Nasdaq: STMP), the leading provider

February 29, 2016 EX-24.1

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 29, 2016 EX-10.22

2014 AMENDMENT TO THE STAMPS.COM INC. 2010 EQUITY INCENTIVE PLAN

EX-10.22 2 h10034953ex10-22.htm EXHIBIT 10.22 Exhibit 10.22 2014 AMENDMENT TO THE STAMPS.COM INC. 2010 EQUITY INCENTIVE PLAN Pursuant to Section 20.2 of the Stamps.com Inc. 2010 Equity Incentive Plan (the “Plan”), and the action of the Board of Directors of Stamps.com Inc. (the “Company”), the Company hereby adopts this Amendment to the Plan. This Amendment is effective September 9, 2014. Capitali

February 29, 2016 EX-24.3

POWER OF ATTORNEY

Exhibit 24.3 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 29, 2016 EX-24.2

POWER OF ATTORNEY

Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, the undersigned hereby constitutes and appoints Kenneth McBride, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all Annual Reports on Form 10-K and any amendments thereto, for the year ended December

February 29, 2016 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2015 OR o 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: 000-26

February 10, 2016 SC 13G

STMP / Stamps.com, Inc. / VANGUARD GROUP INC Passive Investment

stampsdotcominc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: Stamps.com Inc Title of Class of Securities: Common Stock CUSIP Number: 852857200 Date of Event Which Requires Filing of this Statement: December 31, 2015 Check the appropriate box to de

February 3, 2016 EX-99.1

INDEPENDENT AUDITORS’ REPORT

Exhibit 99.1 Audited financial statements of PSI Systems, Inc. as of and for the nine months ended September 30, 2015 and as of and for the years ended December 31, 2014 and December 31, 2013. Board of Directors PSI Systems, Inc. Mountain View, California INDEPENDENT AUDITORS’ REPORT Report on the Financial Statements We have audited the accompanying financial statements of PSI Systems, Inc. (dba

February 3, 2016 EX-99.2

STAMPS.COM INC. UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET AS OF SEPTEMBER 30, 2015 (In thousands)

EX-99.2 4 ex992.htm EXHIBIT 99.2 Exhibit 99.2 Unaudited Pro Forma Condensed Combined Financial Statements On November 24, 2015, Stamps.com Inc. ("SDC") filed a Current Report on Form 8-K to report that on November 18, 2015, Stamps.com Inc completed the acquisition of PSI Systems, Inc. ("Endicia") from Newell Rubbermaid Inc. (“Parent”). The following unaudited pro forma condensed combined balance s

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