New Mountain Finance Corp SEC filings NMFCZ
New Mountain Finance Corp has 905 filings in SEC EDGAR's recent list, going back to Jul 22, 2010. Its latest annual report, Form 10-K, was filed on Feb 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 2, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 2, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Sep 11, 2026 | Jun 10, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 144 | Notice of proposed sale | Jun 15, 2026 | — |
| 4 | Insider transaction | Mar 18, 2026 | Mar 17, 2026 |
| 4 | Insider transaction | Mar 12, 2026 | Mar 10, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 12, 2026 | — |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 3, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 3, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 3 | Initial insider ownership | Jan 26, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Sep 18, 2025 | Sep 16, 2025 |
| 4 | Insider transaction | Sep 16, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Aug 12, 2025 | Aug 11, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Dec 19, 2024 | Dec 17, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 5, 2024 | Dec 3, 2024 |
| 4 | Insider transaction | Nov 29, 2024 | Nov 26, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 26, 2024 | — |
| 4 | Insider transaction | Nov 26, 2024 | Nov 22, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 18, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 14, 2024 | Nov 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 6, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 6, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 18, 2024 | — |
| 4 | Insider transaction | Aug 7, 2024 | Aug 5, 2024 |
| 4 | Insider transaction | Jun 11, 2024 | Jun 7, 2024 |
| 4 | Insider transaction | Apr 24, 2024 | Apr 22, 2024 |
| 3 | Initial insider ownership | Dec 1, 2023 | Nov 27, 2023 |
| 4 | Insider transaction | Aug 4, 2023 | Jul 27, 2023 |
| 3 | Initial insider ownership | Jul 6, 2023 | Jun 27, 2023 |
| 4 | Insider transaction | May 15, 2023 | May 11, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 17, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 15, 2023 | Mar 13, 2023 |
| 4 | Insider transaction | Mar 15, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 15, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | Dec 20, 2022 | Dec 14, 2021 |
| 4 | Insider transaction | Sep 8, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Sep 7, 2022 | Sep 2, 2022 |
| 4 | Insider transaction | Sep 6, 2022 | Sep 1, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 14, 2022 | Jun 13, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 24, 2022 | May 23, 2022 |
| 4 | Insider transaction | May 23, 2022 | May 20, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 20, 2022 |
| 4 | Insider transaction | May 19, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 16, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 16, 2022 |
| 4 | Insider transaction | May 17, 2022 | May 13, 2022 |
| 4 | Insider transaction | May 16, 2022 | May 12, 2022 |
| 3 | Initial insider ownership | Mar 9, 2022 | Mar 4, 2022 |
| 3 | Initial insider ownership | Feb 25, 2022 | Feb 15, 2022 |
| 4 | Insider transaction | Sep 20, 2021 | Sep 16, 2021 |
| 4 | Insider transaction | Aug 23, 2021 | Aug 20, 2021 |
| 4 | Insider transaction | Aug 10, 2021 | Aug 9, 2021 |
| 4 | Insider transaction | Mar 9, 2021 | Mar 8, 2021 |
| 5 | Annual insider ownership | Feb 12, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Dec 17, 2020 | Dec 15, 2020 |
| 4 | Insider transaction | Sep 4, 2020 | Sep 2, 2020 |
| 4 | Insider transaction | Aug 24, 2020 | Aug 20, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 16, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 5, 2020 | — |
| 4 | Insider transaction | Jun 1, 2020 | May 27, 2020 |
| 4 | Insider transaction | May 27, 2020 | May 22, 2020 |
| 4 | Insider transaction | May 18, 2020 | May 14, 2020 |
| 4 | Insider transaction | May 13, 2020 | May 11, 2020 |
| 4 | Insider transaction | May 13, 2020 | May 11, 2020 |
| 4 | Insider transaction | May 13, 2020 | May 13, 2020 |
| 4 | Insider transaction | Mar 13, 2020 | Mar 12, 2020 |
| 4 | Insider transaction | Mar 13, 2020 | Mar 12, 2020 |
| 4 | Insider transaction | Mar 11, 2020 | Mar 9, 2020 |
| 4 | Insider transaction | Mar 10, 2020 | Mar 9, 2020 |
| 4 | Insider transaction | Mar 4, 2020 | Mar 2, 2020 |
| 4 | Insider transaction | Mar 4, 2020 | Mar 2, 2020 |
| 4 | Insider transaction | Mar 4, 2020 | Mar 2, 2020 |
| 4 | Insider transaction | Mar 4, 2020 | Mar 2, 2020 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2020 | — |
| 4 | Insider transaction | Dec 5, 2019 | Dec 2, 2019 |
| 3 | Initial insider ownership | Nov 22, 2019 | Nov 19, 2019 |
| 4 | Insider transaction | Nov 18, 2019 | Nov 14, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 1, 2019 | — |
| 4 | Insider transaction | Oct 25, 2019 | Oct 23, 2019 |
| 4 | Insider transaction | Oct 25, 2019 | Oct 23, 2019 |
| 4 | Insider transaction | Oct 25, 2019 | Oct 23, 2019 |
| 4 | Insider transaction | Oct 25, 2019 | Oct 23, 2019 |
| 3 | Initial insider ownership | Oct 3, 2019 | Sep 13, 2019 |
| 4 | Insider transaction | Sep 11, 2019 | Sep 9, 2019 |
| 4 | Insider transaction | Aug 14, 2019 | Aug 14, 2019 |
| 4 | Insider transaction | Aug 14, 2019 | Aug 13, 2019 |
| 4 | Insider transaction | Aug 13, 2019 | Aug 12, 2019 |
| 4 | Insider transaction | Aug 13, 2019 | Aug 12, 2019 |
| 4 | Insider transaction | Aug 13, 2019 | Aug 12, 2019 |
| SC 13G | Ownership over 5% (passive) | Jun 6, 2019 | — |
| 4 | Insider transaction | Mar 11, 2019 | Mar 8, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 22, 2019 | — |
| 4 | Insider transaction | Dec 19, 2018 | Dec 17, 2018 |
| 4 | Insider transaction | Dec 19, 2018 | Dec 17, 2018 |
| 4 | Insider transaction | Dec 19, 2018 | Dec 17, 2018 |
| 4 | Insider transaction | Dec 14, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Dec 13, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Dec 11, 2018 | Dec 10, 2018 |
| 4 | Insider transaction | Nov 26, 2018 | Nov 26, 2018 |
| 4 | Insider transaction | Nov 14, 2018 | Nov 13, 2018 |
| 4 | Insider transaction | Sep 13, 2018 | Sep 11, 2018 |
| 4 | Insider transaction | Sep 10, 2018 | Sep 6, 2018 |
| 4 | Insider transaction | Sep 7, 2018 | Sep 6, 2018 |
| 4 | Insider transaction | Sep 7, 2018 | Sep 6, 2018 |
| 4 | Insider transaction | Mar 16, 2018 | Mar 15, 2018 |
| 4 | Insider transaction | Mar 16, 2018 | Mar 14, 2018 |
| 4 | Insider transaction | Mar 14, 2018 | Mar 14, 2018 |
| 4 | Insider transaction | Mar 14, 2018 | Mar 12, 2018 |
| 4 | Insider transaction | Mar 14, 2018 | Mar 13, 2018 |
| 4 | Insider transaction | Mar 12, 2018 | Mar 8, 2018 |
| 4 | Insider transaction | Mar 7, 2018 | Mar 5, 2018 |
| 4 | Insider transaction | Mar 6, 2018 | Mar 5, 2018 |
| 4 | Insider transaction | Mar 5, 2018 | Mar 5, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2018 | — |
| 4/A | Form 4/a | Dec 18, 2017 | Nov 14, 2017 |
| 4/A | Form 4/a | Dec 18, 2017 | Dec 12, 2017 |
| 4 | Insider transaction | Dec 18, 2017 | Dec 15, 2017 |
| 4 | Insider transaction | Dec 13, 2017 | Dec 12, 2017 |
| 4 | Insider transaction | Dec 8, 2017 | Dec 6, 2017 |
| 4 | Insider transaction | Dec 8, 2017 | Dec 7, 2017 |
| 4 | Insider transaction | Dec 4, 2017 | Nov 30, 2017 |
| 4 | Insider transaction | Nov 22, 2017 | Nov 21, 2017 |
| 4 | Insider transaction | Nov 20, 2017 | Nov 17, 2017 |
| 4 | Insider transaction | Nov 16, 2017 | Nov 14, 2017 |
| 4 | Insider transaction | Jun 14, 2017 | Jun 13, 2017 |
| 4 | Insider transaction | May 18, 2017 | May 17, 2017 |
| 4 | Insider transaction | Mar 16, 2017 | Mar 15, 2017 |
| 3 | Initial insider ownership | Mar 16, 2017 | Mar 13, 2017 |
| 4 | Insider transaction | Mar 7, 2017 | Mar 4, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 24, 2017 | — |
| 4 | Insider transaction | Nov 10, 2016 | Nov 4, 2016 |
| 4 | Insider transaction | Nov 8, 2016 | Nov 4, 2016 |
| 4 | Insider transaction | Nov 7, 2016 | Nov 4, 2016 |
| 4 | Insider transaction | Nov 7, 2016 | Nov 4, 2016 |
| 4 | Insider transaction | Nov 4, 2016 | Nov 3, 2016 |
| 4 | Insider transaction | Nov 4, 2016 | Nov 2, 2016 |
| 4 | Insider transaction | Nov 3, 2016 | Nov 3, 2016 |
| 4 | Insider transaction | Nov 3, 2016 | Nov 2, 2016 |
| 4 | Insider transaction | Nov 2, 2016 | Oct 31, 2016 |
| 4 | Insider transaction | Nov 2, 2016 | Oct 31, 2016 |
| 4 | Insider transaction | Aug 17, 2016 | Aug 15, 2016 |
| 4 | Insider transaction | May 24, 2016 | May 20, 2016 |
| SC 13D | Ownership over 5% (active) | Mar 4, 2016 | — |
| 4 | Insider transaction | Feb 22, 2016 | Feb 18, 2016 |
| 4 | Insider transaction | Feb 18, 2016 | Feb 16, 2016 |
| 4 | Insider transaction | Feb 16, 2016 | Feb 11, 2016 |
| 4/A | Form 4/a | Feb 16, 2016 | Nov 12, 2015 |
| 4 | Insider transaction | Feb 10, 2016 | Feb 9, 2016 |
| 4 | Insider transaction | Feb 9, 2016 | Feb 9, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2016 | — |
| 4 | Insider transaction | Dec 17, 2015 | Dec 15, 2015 |
| 4 | Insider transaction | Dec 15, 2015 | Dec 14, 2015 |
| 4 | Insider transaction | Dec 15, 2015 | Dec 14, 2015 |
| 4 | Insider transaction | Dec 15, 2015 | Dec 14, 2015 |
| 4 | Insider transaction | Dec 14, 2015 | Dec 14, 2015 |
| 4 | Insider transaction | Dec 14, 2015 | Dec 14, 2015 |
| 3 | Initial insider ownership | Dec 8, 2015 | Dec 1, 2015 |
| 4 | Insider transaction | Nov 16, 2015 | Nov 12, 2015 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 15, 2015 | — |
| 4 | Insider transaction | Sep 30, 2015 | Sep 30, 2015 |
| 4 | Insider transaction | Sep 30, 2015 | Sep 30, 2015 |
| 4 | Insider transaction | Sep 30, 2015 | Sep 28, 2015 |
| 4 | Insider transaction | Sep 30, 2015 | Sep 29, 2015 |
| 4 | Insider transaction | Sep 30, 2015 | Sep 28, 2015 |
| 4 | Insider transaction | Sep 30, 2015 | Sep 28, 2015 |
| 4 | Insider transaction | Sep 28, 2015 | Sep 25, 2015 |
| 4 | Insider transaction | Sep 11, 2015 | Sep 10, 2015 |
| 3 | Initial insider ownership | Aug 21, 2015 | Aug 14, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2015 | — |
| 3 | Initial insider ownership | Jun 25, 2015 | Jun 22, 2015 |
| 4 | Insider transaction | Mar 17, 2015 | Mar 16, 2015 |
| 4 | Insider transaction | Mar 16, 2015 | Mar 13, 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Listed as
- NMFC (Nasdaq), NMFCZ (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- United States
- Headquarters
- New York, NY
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1496099
- Former names
- New Mountain Guardian Corp (until Feb 18, 2011)
Source: SEC EDGAR filings. This is company-reported data, not investment advice.