FINANCIAL INSTITUTIONS INC

Nasdaq:FISIOTC:FIISOOTC:FIISP

National Commercial Banks·WARSAW, NY

A financial institution, sometimes called a banking institution, is a business entity that provides service as an intermediary for different types of financial monetary transactions.

All Filings(1008 total)

TypeDateAccessionPeriodSize

8-K

Mar 10, 2026

0001193125-26-1001198-K

Mar 4, 2026

142.3 KB

10-K

Mar 9, 2026

0001193125-26-09846710-K

Dec 31, 2025

53.8 MB

Mar 6, 2026

0001193125-26-0965004

Mar 5, 2026

4.8 KB

Mar 6, 2026

0001193125-26-0964994

Mar 5, 2026

5.7 KB

Mar 6, 2026

0001193125-26-0964894

Mar 5, 2026

6.2 KB

Mar 6, 2026

0001193125-26-0964884

Mar 5, 2026

4.8 KB

Mar 6, 2026

0001193125-26-0964864

Mar 5, 2026

4.8 KB

Mar 6, 2026

0001193125-26-0964844

Mar 5, 2026

4.8 KB

Mar 6, 2026

0001193125-26-0964854

Mar 5, 2026

6.2 KB

Mar 6, 2026

0001193125-26-0964834

Mar 5, 2026

5.5 KB

Mar 6, 2026

0001193125-26-0964824

Mar 5, 2026

4.9 KB

EFFECT

Feb 17, 2026

9999999995-26-000610

—

1.7 KB

424B3

Feb 17, 2026

0001193125-26-054860424B3

—

461.6 KB

8-K

Feb 12, 2026

0001193125-26-0489708-K

Feb 12, 2026

1.3 MB

SCHEDULE 13G

Feb 10, 2026

0000902219-26-000008

—

16.6 KB

S-4

Jan 30, 2026

0001193125-26-031769S-4

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848.5 KB

8-K

Jan 29, 2026

0001193125-26-0293308-K

Dec 31, 2025

3.5 MB

Jan 9, 2026

0001193125-26-0089015

Dec 31, 2025

3.9 KB

Jan 9, 2026

0001193125-26-0089005

Dec 31, 2025

4.4 KB

Jan 9, 2026

0001193125-26-0088965

Dec 31, 2025

5.1 KB

Jan 9, 2026

0001193125-26-0088955

Dec 31, 2025

4.7 KB

Jan 9, 2026

0001193125-26-0088935

Dec 31, 2025

5.1 KB

Dec 17, 2025

0000862831-25-000002

—

22.7 KB

8-K

Dec 11, 2025

0001193125-25-3160598-K

Dec 11, 2025

3.0 MB

Dec 1, 2025

0001193125-25-3039464

Nov 28, 2025

4.1 KB

25 filings shown