BankFinancial Corporation
BankFinancial Corporation (BFIN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BFIN · as of Sep 30, 2025
Ownership Breakdown
75
Institutional Holders
▲ 22 vs Q2
$91.62M
Total Inst. Value
▲ $6.73M vs Q2
12.46M
Shares Outstanding
freeFloat 86.67%
7.62M
13F Shares Held
▲ 279,241 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
BFIN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
M3F, INC. savings institution, federally chartered | 1.00M | 8.03% | 8.03% | $12.03B | Nov 12, 2025 | ▼ 65.3K |
BLACKROCK, INC. savings institution, federally chartered | 858.5K | 6.89% | 6.89% | $10.33B | Nov 12, 2025 | ▲ 11.9K |
DIMENSIONAL FUND ADVISORS LP savings institution, federally chartered | 773.9K | 6.21% | 6.21% | $9.31B | Nov 12, 2025 | ▼ 51.7K |
STRATEGIC VALUE BANK PARTNERS LLC savings institution, federally chartered | 645.0K | 5.18% | 5.18% | $7.76B | Oct 20, 2025 | — held |
VANGUARD GROUP INC savings institution, federally chartered | 642.3K | 5.15% | 5.15% | $7.73B | Nov 7, 2025 | ▼ 14.1K |
RENAISSANCE TECHNOLOGIES LLC savings institution, federally chartered | 626.2K | 5.03% | 5.03% | $7.53B | Nov 13, 2025 | ▼ 12.9K |
GARDNER LEWIS ASSET MANAGEMENT L P savings institution, federally chartered | 498.4K | 4.00% | 4.00% | $6.00B | Nov 10, 2025 | NEW |
YAKIRA CAPITAL MANAGEMENT, INC. savings institution, federally chartered | 270.1K | 2.17% | 2.17% | $3.25B | Nov 13, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC savings institution, federally chartered | 268.2K | 2.15% | 2.15% | $3.23B | Nov 12, 2025 | ▼ 811 |
ALLIANCEBERNSTEIN L.P. savings institution, federally chartered | 225.3K | 1.81% | 1.81% | $2.71B | Nov 14, 2025 | ▼ 761.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
17
Increased
+154.5K shares15
New Positions
first time holders13
Decreased
−960.5K shares0
Sold Out
fully exitedNet shares change (top 50)
806.0K
+154.5K / −960.5K
Net new holders
+19
15 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
BFIN insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
O'Connor Aaron J director | Feb 8, 2024 | Purchase | 1,000 | $10.38 | $10.4K | 1.0K | Form 4 ↗ |
O'Connor Aaron J | May 10, 2023 | Purchase | 500 | $7.42 | $3.7K | 3.0K | Form 4 ↗ |
O'Connor Aaron J | Feb 22, 2023 | Purchase | 1,000 | $10.32 | $10.3K | 2.5K | Form 4 ↗ |
Zukonik Debra director | Jun 24, 2021 | Purchase | 3,650 | $10.85 | $39.6K | 3.6K | Form 4 ↗ |
Wherfel Glen director | Dec 9, 2020 | Purchase | 8 | $8.40 | $67.2 | 32.5K | Form 4 ↗ |
Wherfel Glen director | Dec 9, 2020 | Purchase | 14,688 | $8.70 | $127.8K | 32.5K | Form 4 ↗ |
Wherfel Glen director | Dec 9, 2020 | Purchase | 9,418 | $8.69 | $81.8K | 17.8K | Form 4 ↗ |
Wherfel Glen director | Dec 9, 2020 | Purchase | 56 | $8.69 | $486.629 | 8.4K | Form 4 ↗ |
Wherfel Glen director | Dec 9, 2020 | Purchase | 805 | $8.69 | $7.0K | 8.3K | Form 4 ↗ |
Wherfel Glen director | Dec 9, 2020 | Purchase | 25 | $8.68 | $217 | 7.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
BankFinancial Corporation (BFIN) is primarily owned by institutional investors, who hold approximately 61.1% of total shares outstanding. Company insiders own approximately 13.33%, while retail and public investors account for the remaining 25.55%.
The largest institutional shareholder of BankFinancial Corporation is M3F, INC., holding approximately 1.00 million shares — equal to 8.03% of outstanding shares — as of September 30, 2025.
A total of 75 institutional investors currently hold BFIN stock, with a combined institutional value of approximately $91,623,901 as of the most recent 13F filing period.
Frequently asked questions
BFIN ownershipBankFinancial Corporation (BFIN) is primarily owned by institutional investors, who hold approximately 61.1% of shares. The largest shareholder is M3F, INC. with a 8.03% stake. Company insiders hold 13.33%. Data sourced from SEC Form 13F as of September 30, 2025.