# Financial Institutions Inc: filings

FISI · Nasdaq · CIK 862831 · [Financials](/sectors/financials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/fisi.md) · [Financials](/companies/fisi/financials.md) · [Filings](/companies/fisi/filings.md) · [Insiders](/companies/fisi/insiders.md)

## Reports and events: 403 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 778, 8-K 304, 10-Q 53, 3 51, 5 46, SC 13G/A 30, DEFA14A 23, 10-K 18, 11-K 18, DEF 14A 17, 4/A 13, UPLOAD 11, 424B5 8, DFAN14A 8, EFFECT 8, SCHEDULE 13G/A 7, CORRESP 6, S-3 6, SC 13G 6, S-8 5, ARS 4, SCHEDULE 13G 4, 8-K/A 3, FWP 3, S-8 POS 3, SC 13D/A 3, 3/A 2, 424B3 2, D 2, DEFC14A 2, PREC14A 2, S-4 2, SCHEDULE 13D/A 2, 10-Q/A 1, PRE 14A 1, PRRN14A 1, S-3/A 1, SC 13D 1, SCHEDULE 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-29 | 16:06 ET | [8-K](/filings/0001193125-26-437786.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-437786 |
| 2026-09-08 | 16:05 ET | [8-K](/filings/0001193125-26-385193.md) | 5.02 Departure or appointment of officers or directors | 0001193125-26-385193 |
| 2026-08-26 | 16:06 ET | [8-K](/filings/0001193125-26-368299.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-368299 |
| 2026-08-03 | 16:06 ET | [10-Q](/filings/0001193125-26-330542.md) | Quarterly report, period 2026-06-30 | 0001193125-26-330542 |
| 2026-07-23 | 16:06 ET | [8-K](/filings/0001193125-26-314084.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-314084 |
| 2026-05-21 | 16:06 ET | [8-K](/filings/0000862831-26-000002.md) | 5.07 Shareholder vote results | 0000862831-26-000002 |
| 2026-05-20 | 16:06 ET | [8-K](/filings/0001193125-26-232561.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-232561 |
| 2026-05-04 | 16:06 ET | [10-Q](/filings/0001193125-26-203962.md) | Quarterly report, period 2026-03-31 | 0001193125-26-203962 |
| 2026-04-23 | 16:06 ET | [8-K](/filings/0001193125-26-173676.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-173676 |
| 2026-04-06 | 16:05 ET | [DEF 14A](/filings/0001193125-26-143723.md) | Proxy statement, period 2026-03-30 | 0001193125-26-143723 |
| 2026-03-10 | 16:05 ET | [8-K](/filings/0001193125-26-100119.md) | 5.02 Departure or appointment of officers or directors | 0001193125-26-100119 |
| 2026-03-09 | 16:06 ET | [10-K](/filings/0001193125-26-098467.md) | Annual report, period 2025-12-31 | 0001193125-26-098467 |
| 2026-02-12 | 17:01 ET | [8-K](/filings/0001193125-26-048970.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-048970 |
| 2026-01-29 | 16:06 ET | [8-K](/filings/0001193125-26-029330.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-029330 |
| 2025-12-11 | 16:31 ET | [8-K](/filings/0001193125-25-316059.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-316059 |
| 2025-11-17 | 16:06 ET | [8-K](/filings/0001193125-25-284607.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-284607 |
| 2025-11-03 | 16:06 ET | [10-Q](/filings/0001193125-25-262535.md) | Quarterly report, period 2025-09-30 | 0001193125-25-262535 |
| 2025-10-23 | 16:06 ET | [8-K](/filings/0001193125-25-248744.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-248744 |
| 2025-10-02 | 17:03 ET | [SCHEDULE 13D/A](/filings/0000897069-25-001538.md) | Ownership report, active investor, amended | 0000897069-25-001538 |
| 2025-09-22 | 16:06 ET | [8-K](/filings/0001193125-25-211278.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-211278 |
| 2025-08-25 | 16:06 ET | [8-K](/filings/0000950170-25-111189.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-111189 |
| 2025-08-15 | 18:02 ET | [SCHEDULE 13D/A](/filings/0000897069-25-001358.md) | Ownership report, active investor, amended | 0000897069-25-001358 |
| 2025-08-04 | 16:05 ET | [10-Q](/filings/0000950170-25-101991.md) | Quarterly report, period 2025-06-30 | 0000950170-25-101991 |
| 2025-07-24 | 16:06 ET | [8-K](/filings/0000950170-25-098332.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-098332 |
| 2025-05-29 | 16:05 ET | [8-K](/filings/0000950170-25-078932.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results | 0000950170-25-078932 |
| 2025-05-28 | 16:06 ET | [8-K](/filings/0000950170-25-078331.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-078331 |
| 2025-05-05 | 16:05 ET | [10-Q](/filings/0000950170-25-063527.md) | Quarterly report, period 2025-03-31 | 0000950170-25-063527 |
| 2025-04-28 | 16:06 ET | [8-K](/filings/0000950170-25-059293.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-059293 |
| 2025-04-14 | 08:00 ET | [DEF 14A](/filings/0000950170-25-053504.md) | Proxy statement, period 2025-05-28 | 0000950170-25-053504 |
| 2025-03-18 | 19:18 ET | [SCHEDULE 13D](/filings/0000897069-25-000660.md) | Ownership report, active investor | 0000897069-25-000660 |
| 2025-03-12 | 16:05 ET | [10-K](/filings/0000950170-25-037918.md) | Annual report, period 2024-12-31 | 0000950170-25-037918 |
| 2025-03-10 | 16:06 ET | [8-K/A](/filings/0000950170-25-036259.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure | 0000950170-25-036259 |
| 2025-03-10 | 16:05 ET | [8-K](/filings/0000950170-25-036249.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0000950170-25-036249 |
| 2025-03-06 | 16:07 ET | [8-K](/filings/0000950170-25-034613.md) | 5.02 Departure or appointment of officers or directors | 0000950170-25-034613 |
| 2025-03-06 | 16:06 ET | [8-K](/filings/0000950170-25-034609.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000950170-25-034609 |
| 2025-02-13 | 16:06 ET | [8-K](/filings/0000950170-25-019874.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-019874 |
| 2025-01-30 | 16:06 ET | [8-K](/filings/0000950170-25-011079.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-25-011079 |
| 2025-01-27 | 16:06 ET | [8-K](/filings/0000950170-25-009190.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000950170-25-009190 |
| 2024-12-12 | 07:18 ET | [8-K](/filings/0001193125-24-276369.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-276369 |
| 2024-11-20 | 16:06 ET | [8-K](/filings/0000950170-24-129234.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-129234 |
| 2024-11-04 | 16:05 ET | [10-Q](/filings/0000950170-24-120679.md) | Quarterly report, period 2024-09-30 | 0000950170-24-120679 |
| 2024-10-24 | 16:06 ET | [8-K](/filings/0000950170-24-117049.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-117049 |
| 2024-09-16 | 16:07 ET | [8-K](/filings/0000950170-24-106821.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000950170-24-106821 |
| 2024-08-19 | 16:07 ET | [8-K](/filings/0000950170-24-098510.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-098510 |
| 2024-08-05 | 16:05 ET | [10-Q](/filings/0000950170-24-090729.md) | Quarterly report, period 2024-06-30 | 0000950170-24-090729 |
| 2024-07-25 | 16:06 ET | [8-K](/filings/0000950170-24-086488.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-086488 |
| 2024-06-25 | 16:05 ET | [8-K](/filings/0000950170-24-077274.md) | 5.02 Departure or appointment of officers or directors | 0000950170-24-077274 |
| 2024-06-18 | 16:06 ET | [8-K](/filings/0000950170-24-074844.md) | 7.01 Regulation FD disclosure | 0000950170-24-074844 |
| 2024-06-06 | 16:05 ET | [8-K](/filings/0000950170-24-069867.md) | 5.07 Shareholder vote results | 0000950170-24-069867 |
| 2024-05-22 | 16:06 ET | [8-K](/filings/0000950170-24-063490.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000950170-24-063490 |

Page 1 of 9. [Older](/companies/fisi/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 29, 2026, 16:09 ET. No prices; not investment advice.