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5%+ stakes · Schedule 13D and 13G

Financial Institutions Inc: 5%+ holders

Who has reported owning 5% or more of Financial Institutions Inc, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more3
Filings8
Latest filing2026-07-28

Financial Institutions Inc has 8 Schedule 13D or 13G filings on record since 2025-07-15. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
PL Capital Advisors, LLC8.9%1,774,886SCHEDULE 13D/A, 2025-10-022025-09-30
BlackRock, Inc.8.3%1,632,496SCHEDULE 13G/A, 2026-07-282026-06-30
Dimensional Fund Advisors LP5.1%1,002,481SCHEDULE 13G, 2026-07-142026-06-30
Wellington Management Group LLP4.6%900,493SCHEDULE 13G/A, 2026-05-152026-03-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13

Purpose of Transaction (Item 4)

PL Capital Advisors, LLC

This is the Reporting Persons' second amended Schedule 13D. The Reporting Persons beneficially own 8.9% of the Company in the aggregate, based upon the Company's outstanding shares of Common Stock as of July 31, 2025. The Reporting Persons acquired the Common Stock because they believed the Common Stock was undervalued at the time of purchase. The Reporting Persons intend to monitor the performance and corporate governance of the Company, as well as the actions of the Company's management and board. As it deems necessary, the Reporting Persons will assert their stockholder rights. To the extent the actions described herein may be deemed to constitute a "control purpose" with respect to the Exchange Act and the regulations thereunder, the Reporting Persons have such a purpose. Except as noted in this Schedule 13D, the Reporting Persons do not have any plans or proposals, which relate to, or would result in, any of the matters referred to in paragraphs (b) through (j), inclusive of Item (4) of Schedule 13D. The Reporting Persons may, at any time and from time to time, review or reconsider their positions and formulate plans or proposals with respect thereto. The Reporting Persons may make further purchases of shares of Common Stock, and the Reporting Persons may dispose of any or all the shares of Common Stock which they hold.Item 4 of the SCHEDULE 13D/A filed 2025-10-02

Timeline

FiledHolderPercentFiling
2025-07-15Dimensional Fund Advisors LP5%SCHEDULE 13G/A
2025-08-15PL Capital Advisors, LLC7.5%SCHEDULE 13D/A
2025-10-02PL Capital Advisors, LLC8.9%SCHEDULE 13D/A
2026-02-10Wellington Management Group LLP5.2%SCHEDULE 13G
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-05-15Wellington Management Group LLP4.6%SCHEDULE 13G/A
2026-07-14Dimensional Fund Advisors LP5.1%SCHEDULE 13G
2026-07-28BlackRock, Inc.8.3%SCHEDULE 13G/A

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/financial-institutions
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Financial Institutions Inc 5%+ holders: 3 at 5% or more, largest PL Capital Advisors, LLC 8.9%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/financial-institutions