# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001193125-26-143721
Filing Date
2026-04-06
Accepted
2026-04-06 16:05:03
Documents
4

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | fisi_2026_notice_and_acc.htm | DEFA14A | 24914
2 | GRAPHIC | img13841833_0.jpg | GRAPHIC | 323901
3 | GRAPHIC | img13841833_1.jpg | GRAPHIC | 1634994
4 | GRAPHIC | img13841833_2.jpg | GRAPHIC | 1122225
| Complete submission text file | 0001193125-26-143721.txt |  | 4242931

Mailing Address 220 LIBERTY STREET WARSAW NY 14569
Business Address 220 LIBERTY STREET WARSAW NY 14569 5857861100
FINANCIAL INSTITUTIONS INC (Filer) CIK: 0000862831 (see all company filings)

EIN.: 160816610 | State of Incorp.: NY | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 000-26481 | Film No.: 26841150
SIC: 6021 National Commercial Banks
(CF Office: 02 Finance)