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Financial Institutions Inc

FISI
Exchange
Nasdaq
Industry
National Commercial Banks
SEC CIK
0000862831

In the last 90 days, Financial Institutions Inc insiders filed 1 open-market purchase and 0 sales; 159 institutions reported holding it in 13F filings for Q2 2026, worth $611.5M in total; no superinvestor holds it.

Other share classesFIISOFIISP

Holders of 5% or more of FISI

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Financial Institutions Inc, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of FISI
HolderLatest formStakeChangeFirst filedLatest filingFiling
PL Capital Advisors, LLC13D/A7.50%1.50M shares+1.20 ppfrom 6.30%Mar 18, 20252 filingsAug 15, 2025SEC
BlackRock, Inc.13G/A6.90%1.35M shares–Feb 5, 20251 filingFeb 5, 2025SEC
Vanguard Group Inc13G5.13%1.03M shares+0.38 ppfrom 4.75%Jan 30, 20252 filingsApr 30, 2025SEC
Dimensional Fund Advisors LP13G/A5.00%1.01M shares−0.30 ppfrom 5.30%Jan 23, 20253 filingsJul 15, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

8 Schedule 13D and 13G filings on Financial Institutions Inc, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on FISI
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 15, 20256:02 PM ETPL Capital Advisors, LLCand 13 others13D/A7.50%1.50M shares+1.20 ppfrom 6.30%Aug 13, 2025SEC
Jul 15, 20254:03 PM ETDimensional Fund Advisors LP13G/A5.00%1.01M shares−0.30 ppfrom 5.30%Jun 30, 2025SEC
Apr 30, 202510:59 AM ETVanguard Group Inc13G5.13%1.03M shares+0.38 ppfrom 4.75%Mar 31, 2025SEC
Apr 15, 202512:18 PM ETDimensional Fund Advisors LP13G5.30%1.06M shares+0.30 ppfrom 5.00%Mar 31, 2025SEC
Mar 18, 20257:18 PM ETPL Capital Advisors, LLCand 10 others13D6.30%1.26M sharesNewMar 12, 2025SEC
Feb 5, 20251:23 PM ETBlackRock, Inc.13G/A6.90%1.35M shares–Dec 31, 2024SEC
Jan 30, 20259:35 PM ETVanguard Group Inc13G/A4.75%925.3K shares–Below 5%Dec 31, 2024SEC
Jan 23, 20253:55 PM ETDimensional Fund Advisors LP13G/A5.00%971.7K shares–Dec 31, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Financial Institutions Inc shares.

No Form 144 notices for Financial Institutions Inc are on file.