Bain Capital Specialty Finance, Inc. SEC filings BCSF
Bain Capital Specialty Finance, Inc. has 458 filings in SEC EDGAR's recent list, going back to Oct 13, 2015. Its latest annual report, Form 10-K, was filed on Feb 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 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 13G/A | Amended ownership over 5% (passive) | Apr 27, 2026 | — |
| 3 | Initial insider ownership | Mar 5, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 3, 2026 |
| 3 | Initial insider ownership | Nov 6, 2025 | Nov 5, 2025 |
| 3 | Initial insider ownership | Jul 10, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Mar 17, 2025 | Mar 17, 2025 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 3 | Initial insider ownership | Jan 3, 2024 | Jan 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| 3 | Initial insider ownership | Aug 10, 2022 | Jul 27, 2022 |
| 4 | Insider transaction | Aug 10, 2022 | Aug 10, 2022 |
| 4 | Insider transaction | Mar 25, 2022 | Mar 25, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 3, 2022 |
| 4 | Insider transaction | Feb 25, 2022 | Feb 25, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| 4 | Insider transaction | May 11, 2021 | May 11, 2021 |
| 4 | Insider transaction | Dec 3, 2020 | Dec 3, 2020 |
| 4 | Insider transaction | Dec 3, 2020 | Dec 3, 2020 |
| 4 | Insider transaction | Aug 19, 2020 | Aug 19, 2020 |
| 4 | Insider transaction | Jun 25, 2020 | Jun 23, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 17, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 17, 2020 | — |
| 4 | Insider transaction | Jun 17, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4/A | Form 4/a - | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| 4 | Insider transaction | Jun 8, 2020 | Jun 5, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 8, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 9, 2020 | — |
| 4 | Insider transaction | Mar 13, 2020 | Mar 12, 2020 |
| 4 | Insider transaction | Mar 11, 2020 | Mar 11, 2020 |
| 4 | Insider transaction | Mar 10, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 10, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Mar 3, 2020 |
| 4 | Insider transaction | Mar 2, 2020 | Mar 2, 2020 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2020 | — |
| 4 | Insider transaction | Nov 12, 2019 | Nov 12, 2019 |
| 4 | Insider transaction | Aug 29, 2019 | Aug 27, 2019 |
| 4 | Insider transaction | Aug 28, 2019 | Aug 28, 2019 |
| 4 | Insider transaction | Aug 22, 2019 | Aug 21, 2019 |
| 4 | Insider transaction | Jul 24, 2019 | Jul 23, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 24, 2019 | — |
| 3 | Initial insider ownership | Jul 23, 2019 | Jul 17, 2019 |
| 3 | Initial insider ownership | Jul 23, 2019 | Jul 17, 2019 |
| 4 | Insider transaction | May 16, 2019 | May 14, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | May 15, 2019 | — |
| 4 | Insider transaction | Feb 25, 2019 | Feb 25, 2019 |
| 4 | Insider transaction | Feb 25, 2019 | Feb 25, 2019 |
| 4 | Insider transaction | Feb 25, 2019 | Feb 25, 2019 |
| 4 | Insider transaction | Feb 22, 2019 | Feb 22, 2019 |
| 4 | Insider transaction | Feb 22, 2019 | Feb 22, 2019 |
| 4 | Insider transaction | Feb 22, 2019 | Feb 22, 2019 |
| 4 | Insider transaction | Feb 21, 2019 | Feb 21, 2019 |
| 4 | Insider transaction | Feb 21, 2019 | Feb 21, 2019 |
| 4 | Insider transaction | Feb 21, 2019 | Feb 21, 2019 |
| 4 | Insider transaction | Feb 20, 2019 | Feb 20, 2019 |
| 4 | Insider transaction | Feb 20, 2019 | Feb 20, 2019 |
| 4 | Insider transaction | Feb 20, 2019 | Feb 20, 2019 |
| 4 | Insider transaction | Feb 19, 2019 | Feb 19, 2019 |
| 4 | Insider transaction | Feb 19, 2019 | Feb 19, 2019 |
| 4 | Insider transaction | Feb 19, 2019 | Feb 19, 2019 |
| 4 | Insider transaction | Feb 15, 2019 | Feb 15, 2019 |
| 4 | Insider transaction | Feb 15, 2019 | Feb 15, 2019 |
| 4 | Insider transaction | Feb 15, 2019 | Feb 15, 2019 |
| 4 | Insider transaction | Feb 14, 2019 | Feb 14, 2019 |
| 4 | Insider transaction | Feb 14, 2019 | Feb 14, 2019 |
| 4 | Insider transaction | Feb 14, 2019 | Feb 14, 2019 |
| 4 | Insider transaction | Feb 13, 2019 | Feb 13, 2019 |
| 4 | Insider transaction | Feb 13, 2019 | Feb 13, 2019 |
| 4 | Insider transaction | Feb 13, 2019 | Feb 13, 2019 |
| 4 | Insider transaction | Feb 12, 2019 | Feb 12, 2019 |
| 4 | Insider transaction | Feb 12, 2019 | Feb 12, 2019 |
| 4 | Insider transaction | Feb 12, 2019 | Feb 12, 2019 |
| 4 | Insider transaction | Feb 11, 2019 | Feb 11, 2019 |
| 4 | Insider transaction | Feb 11, 2019 | Feb 11, 2019 |
| 4 | Insider transaction | Feb 11, 2019 | Feb 11, 2019 |
| 4 | Insider transaction | Feb 8, 2019 | Feb 8, 2019 |
| 4 | Insider transaction | Feb 8, 2019 | Feb 8, 2019 |
| 4 | Insider transaction | Feb 8, 2019 | Feb 8, 2019 |
| 4 | Insider transaction | Feb 7, 2019 | Feb 7, 2019 |
| 4 | Insider transaction | Feb 7, 2019 | Feb 7, 2019 |
| 4 | Insider transaction | Feb 7, 2019 | Feb 7, 2019 |
| 4 | Insider transaction | Nov 19, 2018 | Nov 19, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 19, 2018 | — |
| 4 | Insider transaction | Nov 19, 2018 | Nov 19, 2018 |
| 4 | Insider transaction | Jul 18, 2018 | Jul 17, 2018 |
| 4 | Insider transaction | Jul 18, 2018 | Jul 17, 2018 |
| 4 | Insider transaction | Jul 18, 2018 | Jul 17, 2018 |
| 4 | Insider transaction | Jul 18, 2018 | Jul 17, 2018 |
| 4 | Insider transaction | Jul 18, 2018 | Jul 17, 2018 |
| 4 | Insider transaction | Jul 18, 2018 | Jul 17, 2018 |
| 3 | Initial insider ownership | Jun 5, 2018 | Jun 1, 2018 |
| 3 | Initial insider ownership | May 2, 2018 | May 1, 2018 |
| 4 | Insider transaction | May 2, 2018 | May 1, 2018 |
| 4 | Insider transaction | Apr 18, 2018 | Apr 17, 2018 |
| 4 | Insider transaction | Apr 18, 2018 | Apr 17, 2018 |
| 4 | Insider transaction | Apr 18, 2018 | Apr 17, 2018 |
| 3 | Initial insider ownership | Feb 14, 2018 | Feb 12, 2018 |
| 4 | Insider transaction | Feb 13, 2018 | Feb 12, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 18, 2018 | — |
| 4 | Insider transaction | Jan 18, 2018 | Jan 17, 2018 |
| 4 | Insider transaction | Jan 18, 2018 | Jan 17, 2018 |
| 4 | Insider transaction | Jan 18, 2018 | Jan 17, 2018 |
| 4 | Insider transaction | Jun 27, 2017 | Jun 26, 2017 |
| 4 | Insider transaction | Jun 27, 2017 | Jun 26, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 27, 2017 | — |
| 4/A | Form 4/a - | Feb 17, 2017 | Feb 15, 2017 |
| 4/A | Form 4/a - | Feb 17, 2017 | Feb 15, 2017 |
| 4 | Insider transaction | Feb 17, 2017 | Jan 20, 2017 |
| 4 | Insider transaction | Feb 17, 2017 | Feb 15, 2017 |
| 4 | Insider transaction | Feb 17, 2017 | Feb 15, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 17, 2017 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 24, 2017 | — |
| SC 13D | Ownership over 5% (active) | Oct 18, 2016 | — |
| 3 | Initial insider ownership | Oct 17, 2016 | Oct 6, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
| 3 | Initial insider ownership | Sep 19, 2016 | Sep 19, 2016 |
Showing 131 filings. 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Listed as
- BCSF (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Boston, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1655050
- Former names
- Sankaty Capital Corp (until Apr 1, 2016)
Source: SEC EDGAR filings. This is company-reported data, not investment advice.