PL Capital Advisors, LLC - 13 Aug 2025 SCHEDULE 13D/A Report for FINANCIAL INSTITUTIONS, INC Common Stock, $0.01 par value (FISI)

Filing manager: PL Capital Advisors, LLC
Reporting owner: LASHLEY RICHARD J
Security: FINANCIAL INSTITUTIONS, INC Common Stock, $0.01 par value
Beneficially owned shares: 1,502,063 shares
Large-stake signal: Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Ownership
7.5%
Beneficial ownership of this reported class.
Shares
1,502,063 shares
Shares beneficially owned as disclosed.
Event date
13 Aug 2025
Date tied to the ownership event or amendment.
Accepted by SEC
15 Aug 2025
EDGAR acceptance date.
How to read this large-stake filing
Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
Compare this filing with the holder history and issuer page before treating the percentage as a current position.
Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership: 7.5%
Symbol: FISI
Shares outstanding: 20,027,507 shares
SEC form: SCHEDULE 13D/A
Accepted by SEC: 15 Aug 2025, 18:02:44 UTC
Event date: 13 Aug 2025
Prior SEC filing: 18 Mar 2025
Next SEC filing: 02 Oct 2025
Source filing: View source filing

Key filing fact

PL Capital Advisors, LLC disclosed 7.5% ownership in FINANCIAL INSTITUTIONS, INC Common Stock, $0.01 par value (FISI) on 13 Aug 2025.

Key facts

PL Capital Advisors, LLC filed SCHEDULE 13D/A for FINANCIAL INSTITUTIONS, INC Common Stock, $0.01 par value (FISI).
Disclosed ownership: 7.5%.
Date of event: 13 Aug 2025.

This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares owned	Sole voting power	Shared voting power	Signature	Title	CIK
PL Capital Advisors, LLC	7.4%	1,491,363	0	1,491,363	John W. Palmer	Managing Member	0001569147
LASHLEY RICHARD J	7.5%	1,502,063	5,000	1,497,063	/s/ Richard J. Lashley	/s/ Richard J. Lashley	0001204241
PALMER JOHN W	7.4%	1,495,363	4,000	1,491,363	/s/ John W. Palmer	John W. Palmer	0001204244
Black Maple Capital Management LP	0.1%	29,325	0	29,325	Robert Barnard	Managing Member	0001588959
Black Maple Capital Holdings LLC	0.1%	29,325	0	29,325	Robert Barnard	Managing Member
Barnard Robert James	0.1%	29,325	0	29,325	/s/ Robert James Barnard	/s/ Robert James Barnard	0001979656
Danielle Morgan Lashley 2010 Trust	0.01%	3,000	0	3,000	Richard Lashley	Trustee
Danielle Morgan Lashley	0.01%	3,000	0	3,000	/s/ Danielle Morgan Lashley	Danielle Morgan Lashley
Lashley Family 2011 Trust	0.03%	5,100	0	5,100	/s/ Beth Lashley	Trustee
Beth Lashley	0.03%	5,100	0	5,100	/s/ Beth Lashley	Beth Lashley
Lashley Family 2012 Trust	0.01%	3,000	0	3,000	/s/ Richard Lashley	Trustee
Robin Lashley	0.01%	1,200	0	1,200	/s/ Robin Lashley	Robin Lashley
Caitlin Anne Lashley 2010 Trust	0.01%	1,500	0	1,500	/s/ Richard Lashley	Trustee
Caitlin Fanelli (nee Lashley)	0.01%	1,500	0	1,500	/s/ Caitlin Fanelli	Caitlin Fanelli

CIK / CUSIP context first

Broader feeds