Latest Period
Q1 2026
Security Snapshot
Blue Foundry Bancorp - Common Stock, par value $0.01 per share (BLFY) Institutional Ownership
CUSIP: 09549B104
13F Institutional Holders and Ownership History from Q3 2021 to Q1 2026
Institutions Reporting
108
Shares (Excl. Options)
12,072,657
Price
$13.24
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- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Symbol
- BLFY
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 12,072,657
- Total 13F value
- $159,311,321
- Portfolio coverage rank
- 0%
- Share change
- +105,363
- Value change
- +$3,964,395
- Number of holders
- 108
- Shares outstanding
- 20,783,639
- SEC-reported price per share
- $13.24
- Insider filing price
- $13.24
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BLFY - Blue Foundry Bancorp - Common Stock, par value $0.01 per share is tracked under CUSIP 09549B104.
- 108 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 104 to 108 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $146,890,398 to $159,311,321.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 108 institutions filings for Q1 2026.
Security key
09549B104
Latest holder period
Q1 2026
13F holders
108
13D/G owners
5
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 09549B104:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
BLFY
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 13% | $26,967,467 | 2,905,977 | T. Rowe Price Investment Management, Inc. | 31 Mar 2025 | |||
| Blue Foundry Bank Employee Stock Ownership Plan Trust | 11% | +8% | $27,900,788 | -$185,580 | 2,244,633 | -0.66% | Blue Foundry Bank Employee Stock Ownership Plan Trust | 31 Dec 2025 |
| GLAZER CAPITAL, LLC | 8.6% | $22,126,943 | 1,779,895 | Glazer Capital, LLC | 05 Jan 2026 | |||
| VANGUARD GROUP INC | 4.1% | -21% | $10,695,579 | -$3,552,262 | 860,458 | -25% | The Vanguard Group | 31 Dec 2025 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 1.9% | $3,837,541 | 400,997 | DRIEHAUS CAPITAL MANAGEMENT LLC | 29 Aug 2025 |
As of 31 Mar 2026, 108 institutional investors reported holding 12,072,657 shares of Blue Foundry Bancorp - Common Stock, par value $0.01 per share (BLFY). This represents 58% of the company’s total 20,783,639 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
50%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GLAZER CAPITAL, LLC | 8.3% | 1,719,910 | +79% | 0.49% | $22,739,000 |
| BlackRock, Inc. | 6.1% | 1,267,125 | -7.2% | 0% | $16,776,735 |
| GARDNER LEWIS ASSET MANAGEMENT L P | 4.9% | 1,018,887 | +3870% | 2.9% | $13,490,064 |
| First Trust Capital Management L.P. | 4.8% | 1,004,006 | +67% | 0.7% | $13,293,039 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.7% | 765,793 | 0% | 0% | $10,139,099 |
| DIMENSIONAL FUND ADVISORS LP | 3.3% | 684,600 | -20% | 0% | $9,063,199 |
| GEODE CAPITAL MANAGEMENT, LLC | 2% | 421,058 | +0.8% | 0% | $5,576,693 |
| STATE STREET CORP | 2% | 411,028 | -10% | 0% | $5,442,011 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.7% | 358,672 | +71% | 0% | $4,748,817 |
| RENAISSANCE TECHNOLOGIES LLC | 1.6% | 338,400 | +58% | 0.01% | $4,480,416 |
| PRELUDE CAPITAL MANAGEMENT, LLC | 1.6% | 333,785 | +1976% | 0.34% | $4,419,313 |
| Essex Financial Services, Inc. | 1.5% | 321,281 | -1.5% | 0.24% | $4,253,767 |
| ABC ARBITRAGE SA | 0.97% | 200,781 | 0% | 0.35% | $2,658,340 |
| MANGROVE PARTNERS IM, LLC | 0.96% | 198,659 | 0% | 0.21% | $2,630,245 |
| MILLENNIUM MANAGEMENT LLC | 0.92% | 191,747 | +439% | 0% | $2,538,730 |
| Russell Investments Group, Ltd. | 0.74% | 154,796 | +604% | 0% | $2,049,497 |
| Squarepoint Ops LLC | 0.73% | 152,559 | +142% | 0% | $2,019,881 |
| NORTHERN TRUST CORP | 0.71% | 147,371 | +3.3% | 0% | $1,951,192 |
| Chicago Capital Management, LLC | 0.7% | 146,012 | +640% | 1.3% | $1,453,659 |
| GOLDMAN SACHS GROUP INC | 0.6% | 124,296 | +37% | 0% | $1,645,679 |
| VANGUARD FIDUCIARY TRUST CO | 0.54% | 112,808 | 0% | 0% | $1,493,578 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.5% | 104,024 | 0% | 0% | $1,377,278 |
| D. E. Shaw & Co., Inc. | 0.47% | 98,540 | -10% | 0% | $1,304,670 |
| TUDOR INVESTMENT CORP ET AL | 0.47% | 97,253 | 0% | 0.01% | $1,287,630 |
| MORGAN STANLEY | 0.47% | 97,060 | -22% | 0% | $1,285,075 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
19
Latest
Q1 2026
Rows shown
1-19 of 19
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 12,072,657 | $159,311,321 | +$3,964,395 | $13.24 | 108 |
| 2025 Q4 | 11,841,656 | $146,890,398 | +$14,798,042 | $12.43 | 104 |
| 2025 Q3 | 10,663,485 | $96,932,435 | -$8,720,372 | $9.09 | 81 |
| 2025 Q2 | 11,616,736 | $111,173,521 | -$113,075 | $9.57 | 78 |
| 2025 Q1 | 11,630,214 | $106,998,455 | -$719,101 | $9.20 | 80 |
| 2024 Q4 | 11,757,186 | $115,338,665 | -$677,694 | $9.81 | 82 |
| 2024 Q3 | 11,808,502 | $120,907,884 | +$1,708,628 | $10.25 | 75 |
| 2024 Q2 | 11,601,876 | $105,818,922 | -$1,892,928 | $9.07 | 68 |
| 2024 Q1 | 11,780,990 | $110,278,362 | -$309,345 | $9.36 | 69 |
| 2023 Q4 | 11,811,361 | $114,218,897 | +$2,061,392 | $9.67 | 69 |
| 2023 Q3 | 11,630,761 | $97,348,661 | -$1,147,630 | $8.37 | 70 |
| 2023 Q2 | 11,751,743 | $118,810,892 | -$9,637,361 | $10.11 | 65 |
| 2023 Q1 | 12,737,228 | $121,259,332 | -$2,884,219 | $9.52 | 76 |
| 2022 Q4 | 12,798,339 | $164,455,836 | +$9,534,408 | $12.85 | 71 |
| 2022 Q3 | 12,058,582 | $134,474,753 | -$33,580,402 | $11.15 | 64 |
| 2022 Q2 | 12,064,026 | $144,636,829 | +$7,285,749 | $11.99 | 63 |
| 2022 Q1 | 11,469,630 | $155,401,386 | +$4,481,110 | $13.55 | 60 |
| 2021 Q4 | 11,110,321 | $162,554,073 | +$19,699,157 | $14.63 | 57 |
| 2021 Q3 | 9,770,309 | $134,731,476 | +$134,731,476 | $13.79 | 54 |