Franklin Street Properties Corp /MA/ SEC filings FSP
Franklin Street Properties Corp /MA/ has 824 filings in SEC EDGAR's recent list, going back to Apr 30, 2001. Its latest annual report, Form ARS, was filed on Apr 2, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 27, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 27, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 28, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Oct 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 3, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| 4 | Insider transaction | May 29, 2026 | May 28, 2026 |
| 4 | Insider transaction | May 29, 2026 | May 28, 2026 |
| 4 | Insider transaction | May 29, 2026 | May 28, 2026 |
| 4 | Insider transaction | May 29, 2026 | May 28, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 11, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 12, 2025 | — |
| 3 | Initial insider ownership | Oct 22, 2025 | Oct 15, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 15, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 8, 2025 | — |
| 4 | Insider transaction | Jun 2, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 30, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 26, 2025 | — |
| 4 | Insider transaction | Dec 17, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 3 | Initial insider ownership | Dec 6, 2024 | Nov 27, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 2, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2024 | — |
| SC 13D | Ownership over 5% (active) | Nov 5, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 22, 2024 | — |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Mar 4, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 11, 2024 | — |
| 4 | Insider transaction | Nov 14, 2023 | Nov 10, 2023 |
| 4 | Insider transaction | Aug 22, 2023 | Aug 18, 2023 |
| 4 | Insider transaction | Aug 9, 2023 | Aug 7, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 7, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | May 31, 2023 | — |
| 4 | Insider transaction | May 31, 2023 | May 26, 2023 |
| 4 | Insider transaction | May 30, 2023 | May 25, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | May 24, 2023 | — |
| 3 | Initial insider ownership | May 24, 2023 | May 15, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 18, 2023 | May 16, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 6, 2023 | — |
| 4 | Insider transaction | Mar 10, 2023 | Mar 9, 2023 |
| 4 | Insider transaction | Mar 8, 2023 | Mar 6, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Feb 22, 2023 | Feb 17, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 20, 2023 | — |
| 4 | Insider transaction | Nov 18, 2022 | Nov 17, 2022 |
| 4 | Insider transaction | Nov 10, 2022 | Nov 9, 2022 |
| 4 | Insider transaction | Sep 15, 2022 | Sep 13, 2022 |
| 4 | Insider transaction | Aug 9, 2022 | Aug 8, 2022 |
| 4 | Insider transaction | Aug 9, 2022 | Aug 5, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 6, 2022 | May 6, 2022 |
| 3 | Initial insider ownership | Feb 24, 2022 | Feb 16, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 18, 2022 |
| 4/A | Primary document | Feb 10, 2022 | May 20, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jan 26, 2022 | — |
| 4 | Insider transaction | Sep 7, 2021 | Sep 7, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 13, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 20, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 20, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 20, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 20, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 20, 2021 |
| 4 | Insider transaction | May 13, 2021 | May 12, 2021 |
| 4 | Insider transaction | May 12, 2021 | May 11, 2021 |
| 4 | Insider transaction | Feb 22, 2021 | Feb 19, 2021 |
| 4 | Insider transaction | Feb 22, 2021 | Feb 19, 2021 |
| 4 | Insider transaction | Feb 22, 2021 | Feb 19, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Jan 25, 2021 | — |
| 4 | Insider transaction | Sep 16, 2020 | Sep 14, 2020 |
| 4 | Insider transaction | Sep 16, 2020 | May 7, 2020 |
| 4 | Insider transaction | Sep 15, 2020 | Sep 14, 2020 |
| 4 | Insider transaction | Sep 14, 2020 | Sep 10, 2020 |
| 4 | Insider transaction | Sep 10, 2020 | Sep 8, 2020 |
| 4 | Insider transaction | Jun 5, 2020 | Jun 4, 2020 |
| 4 | Insider transaction | Jun 5, 2020 | Jun 4, 2020 |
| 4 | Insider transaction | Jun 5, 2020 | Jun 4, 2020 |
| 4 | Insider transaction | Jun 5, 2020 | Jun 4, 2020 |
| 4 | Insider transaction | Jun 5, 2020 | Jun 4, 2020 |
| 4 | Insider transaction | Jun 5, 2020 | Jun 4, 2020 |
| SC 13D | Ownership over 5% (active) | Mar 26, 2020 | — |
| 4 | Insider transaction | Mar 10, 2020 | Mar 9, 2020 |
| 4 | Insider transaction | Mar 2, 2020 | Feb 28, 2020 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2020 | — |
| 4 | Insider transaction | Dec 11, 2019 | Dec 10, 2019 |
| 4 | Insider transaction | Dec 11, 2019 | Dec 10, 2019 |
| 4 | Insider transaction | Dec 11, 2019 | Dec 10, 2019 |
| 4 | Insider transaction | Dec 11, 2019 | Dec 10, 2019 |
| 4 | Insider transaction | Dec 11, 2019 | Dec 10, 2019 |
| 4 | Insider transaction | Dec 11, 2019 | Dec 10, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 31, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 28, 2019 | — |
| 4 | Insider transaction | Dec 14, 2018 | Dec 14, 2018 |
| 4 | Insider transaction | Feb 27, 2018 | Feb 27, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Feb 20, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Feb 20, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Feb 16, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 2, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2018 | — |
| 4 | Insider transaction | Sep 7, 2017 | Sep 7, 2017 |
| 4 | Insider transaction | Sep 6, 2017 | Sep 5, 2017 |
| 4 | Insider transaction | Sep 1, 2017 | Aug 31, 2017 |
| 4 | Insider transaction | Aug 22, 2017 | Aug 22, 2017 |
| 4 | Insider transaction | Aug 18, 2017 | Aug 18, 2017 |
| 4 | Insider transaction | Aug 17, 2017 | Aug 17, 2017 |
| 4 | Insider transaction | Aug 9, 2017 | Aug 8, 2017 |
| 4 | Insider transaction | Aug 9, 2017 | Aug 9, 2017 |
| 4 | Insider transaction | Aug 4, 2017 | Aug 4, 2017 |
| 4 | Insider transaction | Jun 15, 2017 | Jun 13, 2017 |
| 4 | Insider transaction | May 18, 2017 | May 18, 2017 |
| 4 | Insider transaction | May 16, 2017 | May 16, 2017 |
| 4 | Insider transaction | May 11, 2017 | May 11, 2017 |
| 4 | Insider transaction | May 11, 2017 | May 11, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 23, 2017 | — |
| 4 | Insider transaction | Feb 22, 2017 | Feb 21, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 12, 2017 | — |
| 4 | Insider transaction | Nov 4, 2016 | Nov 3, 2016 |
| 4 | Insider transaction | Aug 31, 2016 | Aug 30, 2016 |
| 4 | Insider transaction | Aug 16, 2016 | Aug 16, 2016 |
| 4 | Insider transaction | May 25, 2016 | May 25, 2016 |
| 3 | Initial insider ownership | May 20, 2016 | May 12, 2016 |
| 4 | Insider transaction | May 2, 2016 | Apr 29, 2016 |
| 4 | Insider transaction | Apr 29, 2016 | Apr 29, 2016 |
| 4 | Insider transaction | Mar 8, 2016 | Mar 8, 2016 |
| 4 | Insider transaction | Mar 8, 2016 | Mar 8, 2016 |
| 4 | Insider transaction | Mar 3, 2016 | Feb 19, 2016 |
| 4 | Insider transaction | Feb 24, 2016 | Feb 23, 2016 |
| 4 | Insider transaction | Feb 19, 2016 | Feb 19, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 8, 2016 | — |
| 3 | Initial insider ownership | Jan 6, 2016 | Jan 1, 2016 |
| 3 | Initial insider ownership | Jan 6, 2016 | Jan 1, 2016 |
| 4 | Insider transaction | Dec 11, 2015 | Dec 11, 2015 |
| 4 | Insider transaction | Dec 10, 2015 | Dec 9, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 10, 2015 | — |
| 4 | Insider transaction | Dec 9, 2015 | Dec 8, 2015 |
| 4 | Insider transaction | Dec 8, 2015 | Dec 7, 2015 |
| 4 | Insider transaction | Nov 9, 2015 | Nov 9, 2015 |
| 4 | Insider transaction | Nov 9, 2015 | Nov 6, 2015 |
| 4 | Insider transaction | Nov 2, 2015 | Oct 30, 2015 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 22, 2015 | — |
| 4 | Insider transaction | Sep 17, 2015 | Sep 16, 2015 |
| 4 | Insider transaction | Sep 10, 2015 | Sep 9, 2015 |
| 4 | Insider transaction | Sep 9, 2015 | Aug 28, 2015 |
| 4 | Insider transaction | Aug 31, 2015 | Aug 31, 2015 |
| 4 | Insider transaction | Aug 25, 2015 | Aug 24, 2015 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Real Estate Investment Trusts (SIC 6798)
- Listed as
- FSP (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- MA
- Headquarters
- Wakefield, MA
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1031316
- Former names
- FRANKLIN STREET PARTNERS LP (until Jan 7, 2002)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.