Financial Institutions Inc SEC filings FIISO
Financial Institutions Inc has 1,000 filings in SEC EDGAR's recent list, going back to Dec 5, 2014. Its latest annual report, Form ARS, was filed on Apr 6, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 3, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 14, 2026 | — |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 3 | Initial insider ownership | May 21, 2026 | May 20, 2026 |
| 3 | Initial insider ownership | May 21, 2026 | May 20, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 12, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 5, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 10, 2026 | — |
| 5 | Annual insider ownership | Jan 9, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Jan 9, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Jan 9, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Jan 9, 2026 | Dec 31, 2025 |
| 5 | Annual insider ownership | Jan 9, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 2, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 15, 2025 | — |
| 4 | Insider transaction | Jul 9, 2025 | Jul 8, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 4 | Insider transaction | May 30, 2025 | May 28, 2025 |
| 3 | Initial insider ownership | May 29, 2025 | May 28, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 15, 2025 | — |
| 4/A | Filing | Apr 7, 2025 | Mar 6, 2025 |
| 4/A | Filing | Apr 3, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 27, 2025 | Mar 26, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| 4/A | Filing | Mar 21, 2025 | Mar 6, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 18, 2025 | — |
| 4 | Insider transaction | Mar 18, 2025 | Mar 16, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 16, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 16, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 16, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 16, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 16, 2025 |
| 4 | Insider transaction | Mar 17, 2025 | Mar 6, 2025 |
| 3 | Initial insider ownership | Mar 17, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2025 | — |
| 5 | Annual insider ownership | Feb 4, 2025 | Dec 31, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 30, 2025 | — |
| 3 | Initial insider ownership | Jan 27, 2025 | Jan 22, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 23, 2025 | — |
| 5 | Annual insider ownership | Jan 7, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Jan 7, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 5, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 4 | Insider transaction | Aug 6, 2024 | Aug 2, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 5, 2024 |
| 3 | Initial insider ownership | Apr 2, 2024 | Mar 27, 2024 |
| 4 | Insider transaction | Mar 21, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 21, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 21, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 21, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 21, 2024 | Mar 19, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 7, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| 5 | Annual insider ownership | Jan 5, 2024 | Dec 31, 2023 |
| 5 | Annual insider ownership | Jan 5, 2024 | Dec 31, 2023 |
| 5 | Annual insider ownership | Jan 5, 2024 | Dec 31, 2023 |
| 5 | Annual insider ownership | Jan 5, 2024 | Dec 31, 2023 |
| 4/A | Form 4/a submission | Jan 4, 2024 | Dec 21, 2023 |
| 4 | Insider transaction | Dec 22, 2023 | Dec 21, 2023 |
| 4 | Insider transaction | Dec 22, 2023 | Dec 21, 2023 |
| 4 | Insider transaction | Dec 22, 2023 | Dec 21, 2023 |
| 4 | Insider transaction | Dec 22, 2023 | Dec 21, 2023 |
| 4 | Insider transaction | Dec 22, 2023 | Dec 21, 2023 |
| 3 | Initial insider ownership | Dec 18, 2023 | Dec 8, 2023 |
| 3 | Initial insider ownership | Dec 14, 2023 | Dec 8, 2023 |
| 4 | Insider transaction | Oct 31, 2023 | Oct 28, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | Jun 23, 2023 | Jun 21, 2023 |
| 4 | Insider transaction | May 24, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 15, 2023 | May 11, 2023 |
| 4 | Insider transaction | May 10, 2023 | May 8, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 8, 2023 |
| 4 | Insider transaction | May 5, 2023 | May 4, 2023 |
| 4 | Insider transaction | May 5, 2023 | May 4, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 4, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | Apr 21, 2023 | Apr 20, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 2, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 2, 2023 | Feb 25, 2023 |
| 4 | Insider transaction | Mar 2, 2023 | Feb 25, 2023 |
| 4 | Insider transaction | Mar 2, 2023 | Feb 25, 2023 |
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
- National Commercial Banks (SIC 6021)
- Listed as
- FISI (Nasdaq), FIISO (OTC), FIISP (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- NY
- Headquarters
- Warsaw, NY
- SEC filer status
- Accelerated filer
- SEC CIK
- 862831
- Former names
- FINANCIAL INSTITUTIONS INC (until Nov 3, 2026)
Other National Commercial Banks companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.