FRANKLIN STREET PROPERTIES CORP /MA/ 10-Q

Item 5.  Other Information ​ Director and Officer Trading Arrangements ​ None of our directors or officers adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the quarterly period covered by this report. ​ ​ 29 Table of Contents Item 6.  Exhibit s ​ Exhibit No. ​ ​ ​ Description ​ ​ ​ 3.1 (1) ​ Articles of Incorporation, as amended . ​ ​ ​ 3.2 (2) ​ Amended and Restated By-laws. ​ ​ ​ 10.1 (3) ​ Credit Agreement, dated February 26, 2026, among FSP Corp., Alter Domus (US) LLC and the lenders party thereto. ​ ​ ​ 31.1* ​ Certification of FSP Corp.’s Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. ​ ​ ​ 31.2* ​ Certification of FSP Corp.’s Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. ​ ​ ​ 32.1* ​ Certification of FSP Corp.’s Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 . ​ ​ ​ 32.2* ​ Certification of FSP Corp.’s Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 . ​ ​ ​ 101* ​ The following materials from FSP Corp.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) the Consolidated Balance Sheets; (ii) the Consolidated Statements of Operations; (iii) the Consolidated Statements of Stockholders’ Equity; (iv) the Consolidated Statements of Cash Flows; (v) the Consolidated Statements of Comprehensive Income (Loss); and (vi) the Notes to Consolidated Financial Statements. ​ ​ ​ 104 ​ Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101). ​ Footnotes ​ ​ ​ Description ​ ​ ​ (1) ​ Incorporated by reference to Exhibit 3.1 to FSP Corp.’s Quarterly Report on Form 10-Q, filed on July 30, 2019 (File No. 001-32470). ​ ​ ​ (2) ​ Incorporated by reference to Exhibit 3.1 to FSP Corp.’s Current Report on Form 8-K, filed on February 3, 2023 (File No. 001-32470). ​ ​ ​ (3) ​ Incorporated by reference to Exhibit 10.1 to FSP Corp.’s Current Report on Form 8-K, filed on March 4, 2026 (File No. 001-32470). ​ ​ ​ * ​ Filed herewith. ​ ​ ​ 30 Table of Contents SIGNATURES ​ Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. ​ ​ ​ FRANKLIN STREET PROPERTIES CORP. ​ ​ Date ​ ​ ​ Signature ​ ​ ​ Title ​ ​ ​ ​ ​ Date: April 28, 2026 ​ /s/ George J. Carter ​ Chief Executive Officer and Director ​ ​ George J. Carter ​ (Principal Executive Officer) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Date: April 28, 2026 ​ /s/ John G. Demeritt ​ Chief Financial Officer ​ ​ John G. Demeritt ​ (Principal Financial Officer) ​ ​ ​ ​ ​ 31