# BLUE FOUNDRY BANCORP (BLFY)

> Institutional ownership reported to the SEC as of Q1 2026, from Form 13F filings. Source: https://holderbook.com/stocks/BLFY/

- Reporting holders: 110
- Reported value: $160.3M
- Held through calls: 0.5%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [GLAZER CAPITAL, LLC](https://holderbook.com/funds/1076809-glazer-capital-llc/) | $22.7M | 1,719,910 | 0.5% | 2 |
| [BlackRock, Inc.](https://holderbook.com/funds/2012383-blackrock-inc/) | $16.8M | 1,267,125 | 0.0% | 7 |
| [GARDNER LEWIS ASSET MANAGEMENT L P](https://holderbook.com/funds/941560-gardner-lewis-asset-management-l-p/) | $13.5M | 1,018,887 | 2.9% | 2 |
| [First Trust Capital Management L.P.](https://holderbook.com/funds/1604488-first-trust-capital-management-l-p/) | $13.3M | 1,004,006 | 0.7% | 2 |
| [VANGUARD CAPITAL MANAGEMENT LLC](https://holderbook.com/funds/2100119-vanguard-capital-management-llc/) | $10.1M | 765,793 | 0.0% | 1 |
| [DIMENSIONAL FUND ADVISORS LP](https://holderbook.com/funds/354204-dimensional-fund-advisors-lp/) | $9.1M | 684,600 | 0.0% | 15 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1214717-geode-capital-management-llc/) | $5.6M | 421,058 | 0.0% | 19 |
| [STATE STREET CORP](https://holderbook.com/funds/93751-state-street-corp/) | $5.4M | 411,028 | 0.0% | 19 |
| [ARROWSTREET CAPITAL, LIMITED PARTNERSHIP](https://holderbook.com/funds/1164508-arrowstreet-capital-limited-partnership/) | $4.7M | 358,672 | 0.0% | 4 |
| [RENAISSANCE TECHNOLOGIES LLC](https://holderbook.com/funds/1037389-renaissance-technologies-llc/) | $4.5M | 338,400 | 0.0% | 16 |
| [PRELUDE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1387508-prelude-capital-management-llc/) | $4.4M | 333,785 | 0.3% | 2 |
| [Essex Financial Services, Inc.](https://holderbook.com/funds/1315785-essex-financial-services-inc/) | $4.3M | 321,281 | 0.2% | 19 |
| [ABC ARBITRAGE SA](https://holderbook.com/funds/2049221-abc-arbitrage-sa/) | $2.7M | 200,781 | 0.4% | 2 |
| [MANGROVE PARTNERS IM, LLC](https://holderbook.com/funds/1535392-mangrove-partners-im-llc/) | $2.6M | 198,659 | 0.2% | 10 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $2.5M | 191,747 | 0.0% | 7 |
| [Russell Investments Group, Ltd.](https://holderbook.com/funds/1692234-russell-investments-group-ltd/) | $2.0M | 154,796 | 0.0% | 10 |
| [Squarepoint Ops LLC](https://holderbook.com/funds/1642575-squarepoint-ops-llc/) | $2.0M | 152,559 | 0.0% | 8 |
| [NORTHERN TRUST CORP](https://holderbook.com/funds/73124-northern-trust-corp/) | $2.0M | 147,371 | 0.0% | 19 |
| [GOLDMAN SACHS GROUP INC](https://holderbook.com/funds/886982-goldman-sachs-group-inc/) | $1.6M | 124,296 | 0.0% | 19 |
| [VANGUARD FIDUCIARY TRUST CO](https://holderbook.com/funds/933478-vanguard-fiduciary-trust-co/) | $1.5M | 112,808 | 0.0% | 1 |
| [Chicago Capital Management, LLC](https://holderbook.com/funds/1580162-chicago-capital-management-llc/) | $1.5M | 146,012 | 1.2% | 2 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](https://holderbook.com/funds/2100121-vanguard-portfolio-management-llc/) | $1.4M | 104,024 | 0.0% | 1 |
| [D. E. Shaw & Co., Inc.](https://holderbook.com/funds/1009207-d-e-shaw-co-inc/) | $1.3M | 98,540 | 0.0% | 12 |
| [TUDOR INVESTMENT CORP ET AL](https://holderbook.com/funds/923093-tudor-investment-corp-et-al/) | $1.3M | 97,253 | 0.0% | 2 |
| [MORGAN STANLEY](https://holderbook.com/funds/895421-morgan-stanley/) | $1.3M | 97,060 | 0.0% | 19 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q1 2026 | 110 | $160.3M |
| Q4 2025 | 105 | $153.8M |
| Q3 2025 | 82 | $97.1M |
| Q2 2025 | 79 | $111.2M |
| Q1 2025 | 80 | $117.8M |
| Q4 2024 | 82 | $115.5M |
| Q3 2024 | 77 | $124.0M |
| Q2 2024 | 68 | $106.1M |
| Q1 2024 | 71 | $113.5M |
| Q4 2023 | 72 | $116.3M |
| Q3 2023 | 73 | $98.1M |
| Q2 2023 | 70 | $119.7M |