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Equibles

FISI

Financial Institutions Inc

Company with tickers: FISI, FIISO, FIISP

CIK
862831
CUSIP
317585404
Shares Outstanding
19,686,370
13F Activity (30d)
107 filings 102 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 150
Total Value: $503,142,374
Total Shares: 15,866,997
Showing 1–100 of 151 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 150 13F filers · Δ vs Dec 31, 2025
Top Holder
11.4%
Sep 2023 → Mar 2026 · range 7.2% – 14.9%
+0.0 pts
Top 5
38.4%
Sep 2023 → Mar 2026 · range 29.3% – 45.3%
−2.4 pts
Top 10
58.0%
Sep 2023 → Mar 2026 · range 50.7% – 60.4%
−1.5 pts
HHI
443
Sep 2023 → Mar 2026 · range 354 – 569
Broadly held−31

Quarterly Activity

vs Dec 31, 2025
New
27
Increased
57
Decreased
43
Sold Out
26
Unchanged
23
Holder count: +1
Institutional value: +2.3%
Shares held: +0.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega UBS Group AG +176,936 203,036
Large ACADIAN ASSET MANAGEMENT LLC +128,568 554,604
Mega TWO SIGMA INVESTMENTS, LP +111,213 274,740
Mega GEODE CAPITAL MANAGEMENT, LLC +86,541 568,696
Mega STATE STREET CORP +71,730 579,119

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large COMMONWEALTH EQUITY SERVICES, LLC −296,573 58,903
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC −159,150 202,302
Mega WELLINGTON MANAGEMENT GROUP LLP −148,802 900,493
Mega MORGAN STANLEY −76,761 260,727
Large RENAISSANCE TECHNOLOGIES LLC −68,369 202,931

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 835,538 $26,494,909
Mega RAYMOND JAMES FINANCIAL INC 349,028 $11,067,677
Mid Hillsdale Investment Management Inc. 233,080 $7,390,966
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 212,927 $6,751,915
Small CANANDAIGUA NATIONAL CORP 154,881 $4,911,276

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 1,157,026 $36,064,499
Small Fourthstone LLC 254,501 $7,932,796
Small Rhino Investment Partners, Inc 215,887 $6,729,197
Small CANANDAIGUA NATIONAL BANK & TRUST CO 155,046 $4,832,783
Large TWO SIGMA ADVISERS, LP 109,387 $3,409,592
Filter: New 27 Increased 57 Reduced 43 Sold out 26 Unchanged 23
Showing 100 of 151
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Small PL Capital Advisors, LLC $57,588,594 11.45% 1,816,102
Mega BlackRock, Inc. $46,869,659 9.32% 1,478,072
Mega DIMENSIONAL FUND ADVISORS LP $30,367,618 6.04% 957,667
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $30,075,064 5.98% 948,441
Mega WELLINGTON MANAGEMENT GROUP LLP $28,554,632 5.68% 900,493
Mega VANGUARD CAPITAL MANAGEMENT LLC $26,494,909 5.27% 835,538
Mega STATE STREET CORP $18,363,863 3.65% 579,119
Mega GEODE CAPITAL MANAGEMENT, LLC $18,033,349 3.58% 568,696
Small Ategra Capital Management, LLC $17,887,611 3.56% 564,100
Large ACADIAN ASSET MANAGEMENT LLC $17,586,492 3.50% 554,604
Mega RAYMOND JAMES FINANCIAL INC $11,067,677 2.20% 349,028
Mega TWO SIGMA INVESTMENTS, LP $8,712,005 1.73% 274,740
Mega MORGAN STANLEY $8,267,648 1.64% 260,727
Mega ALLIANCEBERNSTEIN L.P. $8,029,796 1.60% 253,226
Mega GOLDMAN SACHS GROUP INC $7,774,499 1.55% 245,175
Mega JPMORGAN CHASE & CO $7,703,022 1.53% 242,921
Mid Hillsdale Investment Management Inc. $7,390,966 1.47% 233,080
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $6,751,915 1.34% 212,927
Large ProShare Advisors LLC $6,476,957 1.29% 204,256
Mega UBS Group AG $6,438,271 1.28% 203,036
Large RENAISSANCE TECHNOLOGIES LLC $6,434,942 1.28% 202,931
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $6,414,996 1.27% 202,302
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $5,433,191 1.08% 171,340
Mega NORTHERN TRUST CORP Bank $5,248,605 1.04% 165,519
Large LSV ASSET MANAGEMENT $5,197,269 1.03% 163,900
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $5,079,339 1.01% 160,181
Mega AQR CAPITAL MANAGEMENT LLC $5,010,494 1.00% 158,010
Small CANANDAIGUA NATIONAL CORP $4,911,276 0.98% 154,881
Small Palisades Investment Partners, LLC $4,645,641 0.92% 146,504
Mega VANGUARD FIDUCIARY TRUST CO Bank $4,006,495 0.80% 126,348
Mega BANK OF AMERICA CORP /DE/ Bank $3,795,401 0.75% 119,691
Small COURIER CAPITAL LLC $3,716,443 0.74% 117,201
Small MALTESE CAPITAL MANAGEMENT LLC $3,708,896 0.74% 116,963
Mega Bank of New York Mellon Corp Bank $3,654,386 0.73% 115,244
Large Empowered Funds, LLC $3,213,491 0.64% 101,340
Mid Curi Capital, LLC $3,171,539 0.63% 100,017
Small MENDON CAPITAL ADVISORS CORP $3,171,000 0.63% 100,000
Mega AMERICAN CENTURY COMPANIES INC $2,782,901 0.55% 87,761
Mega FMR LLC $2,300,814 0.46% 72,558
Large Qube Research & Technologies Ltd $2,144,991 0.43% 67,644
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $1,884,049 0.37% 59,415
Large COMMONWEALTH EQUITY SERVICES, LLC $1,867,814 0.37% 58,903
Mega Nuveen, LLC $1,802,934 0.36% 56,857
Large Verition Fund Management LLC $1,662,206 0.33% 52,419
Large Thrivent Financial for Lutherans $1,655,134 0.33% 52,196
Large SEI INVESTMENTS CO $1,632,430 0.32% 51,480
Small BAYVIEW ASSET MANAGEMENT, LLC $1,585,500 0.32% 50,000
Small Cutler Capital Management, LLC $1,567,361 0.31% 49,428
Mid KENNEDY CAPITAL MANAGEMENT LLC $1,469,695 0.29% 46,348
Large Universal- Beteiligungs- und Servicegesellschaft mbH $1,464,240 0.29% 46,176
Small Numerai GP LLC $1,389,627 0.28% 43,823
Mid SEGALL BRYANT & HAMILL, LLC $1,373,518 0.27% 43,315
Mid MARTINGALE ASSET MANAGEMENT L P $1,317,487 0.26% 41,548
Large Connor, Clark & Lunn Investment Management Ltd. $1,270,048 0.25% 40,052
Mega VICTORY CAPITAL MANAGEMENT INC $1,192,296 0.24% 37,600
Large Russell Investments Group, Ltd. $1,110,039 0.22% 35,006
Mega Invesco Ltd. $1,079,311 0.21% 34,037
Large Trexquant Investment LP $1,067,548 0.21% 33,666
Mega FRANKLIN RESOURCES INC $954,723 0.19% 30,108
Large Man Group plc $949,429 0.19% 29,941
Mega Vanguard Global Advisers, LLC $826,616 0.16% 26,068
Mega RHUMBLINE ADVISERS $797,728 0.16% 25,157
Large ExodusPoint Capital Management, LP $752,922 0.15% 23,744
Small Informed Momentum Co LLC $711,350 0.14% 22,433
Mid Campbell & CO Investment Adviser LLC $706,625 0.14% 22,284
Large Quantinno Capital Management LP $650,086 0.13% 20,501
Large PRUDENTIAL FINANCIAL INC $648,120 0.13% 20,439
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $638,354 0.13% 20,131
Large Creative Planning $633,946 0.13% 19,992
Mega AMERIPRISE FINANCIAL INC $616,030 0.12% 19,427
Large STRS OHIO $596,148 0.12% 18,800
Mid GSA CAPITAL PARTNERS LLP $571,699 0.11% 18,029
Mega MILLENNIUM MANAGEMENT LLC $546,680 0.11% 17,240
Mega DEUTSCHE BANK AG\ Bank $538,499 0.11% 16,982
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $526,639 0.10% 16,608
Mega BNP PARIBAS ARBITRAGE, SA $525,149 0.10% 16,561
Large ALPS ADVISORS INC $519,092 0.10% 16,370
Large Rafferty Asset Management, LLC $513,004 0.10% 16,178
Mega CITIGROUP INC $489,760 0.10% 15,445
Mega PRICE T ROWE ASSOCIATES INC /MD/ $486,494 0.10% 15,342
Mega BARCLAYS PLC $388,098 0.08% 12,239
Large MARSHALL WACE, LLP $374,462 0.07% 11,809
Mid Graham Capital Management, L.P. $373,512 0.07% 11,779
Mega HSBC HOLDINGS PLC $368,819 0.07% 11,631
Mega CITADEL ADVISORS LLC $363,364 0.07% 11,459
Large GREAT LAKES ADVISORS, LLC $351,219 0.07% 11,076
Large MetLife Investment Management, LLC $349,666 0.07% 11,027
Mega JANE STREET GROUP, LLC $329,688 0.07% 10,397
Large IEQ CAPITAL, LLC $314,690 0.06% 9,924
Large CWM, LLC $297,408 0.06% 9,379
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $290,209 0.06% 9,152
Large Balyasny Asset Management L.P. $289,322 0.06% 9,124
Small Stonebrook Private Inc. $275,401 0.05% 8,685
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $256,851 0.05% 8,100
Small Daytona Street Capital LLC $253,680 0.05% 8,000
Large Squarepoint Ops LLC $239,537 0.05% 7,554
Mid CARY STREET PARTNERS FINANCIAL LLC $236,239 0.05% 7,450
Mega WELLS FARGO & COMPANY/MN $234,494 0.05% 7,395
Mid Brevan Howard Capital Management LP $231,831 0.05% 7,311
Mega D. E. Shaw & Co., Inc. $229,992 0.05% 7,253

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