NB BancorpNBBK
13F holders, Q2 2025 (June 30)131holders +10
20new positions
11sold out
6famous investors
$17.86avg. 13F price*
At the end of Q2 2025, 131 institutions reported holding NB Bancorp Inc. (NBBK) in their 13F filings, up 10 from Q1 2025. 20 opened new positions and 11 sold out. The largest holders were BlackRock, Inc. ($51.5M), Pertento Partners LLP ($37.8M) and Vanguard Group Inc. ($35.4M). 6 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- NB Bancorp Inc.
- CUSIP
- 63945M107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $10.4M |
| Exits | 11 | $4.6M |
All 13F filers, Q1 2025 → Q2 2025: 2,084,885 shares bought and 1,711,214 shares sold, net +373,671 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 131 holders
| BlackRock, Inc. | 0.00% | Reduce -8.3% | 2,881,357 | $51.5M |
| Pertento Partners LLP | 4.26% | Add +6.8% | 2,114,336 | $37.8M |
| Vanguard Group Inc. | 0.00% | Reduce -6.0% | 1,981,996 | $35.4M |
| Wellington Management Group LLP | 0.01% | Add +15.5% | 1,860,589 | $33.2M |
| State Street Corp. | 0.00% | Add +3.8% | 1,120,663 | $20.0M |
| Geode Capital Management, LLC | 0.00% | Reduce -2.0% | 883,141 | $15.8M |
| Millennium Management | 0.01% | Add +153.6% | 643,071 | $11.5M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Add +3.7% | 546,510 | $9.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +0.7% | 474,756 | $8.5M |
| Northern Trust Corp. | 0.00% | Reduce -8.9% | 316,761 | $5.7M |
| Marshall Wace, LLP | 0.01% | Add +165.9% | 315,460 | $5.6M |
| FMR LLC | 0.00% | Add +2.3% | 301,277 | $5.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -4.0% | 298,987 | $5.3M |
| Panagora Asset Management Inc. | 0.02% | Add +24.4% | 225,581 | $4.0M |
| Hennessy Advisors Inc. | 0.11% | Reduce -7.7% | 180,000 | $3.2M |
| Deutsche Bank AG | 0.00% | Reduce -1.5% | 178,054 | $3.2M |
| EJF Capital LP | 2.39% | Add +139.9% | 167,830 | $3.0M |
| Prospector Partners LLC | 0.35% | Reduce -30.8% | 167,622 | $3.0M |
| Renaissance Technologies | 0.00% | Reduce -28.7% | 144,148 | $2.6M |
| Two Sigma Investments, LP | 0.00% | Reduce -6.1% | 141,234 | $2.5M |
| Morgan Stanley | 0.00% | Reduce -46.6% | 134,337 | $2.4M |
| Bank of America Corp. | 0.00% | Reduce -57.2% | 129,952 | $2.3M |
| Financial Engines Advisors L.L.C. | 0.00% | New | 118,299 | $2.1M |
| Victory Capital Management Inc. | 0.00% | Reduce -3.5% | 112,109 | $2.0M |
| Nuveen, LLC | 0.00% | Reduce -17.8% | 108,744 | $1.9M |
| UBS Group AG | 0.00% | Add +79.4% | 103,842 | $1.9M |
| Mangrove Partners Im, LLC | 0.20% | No change | 103,743 | $1.9M |
| Bank of New York Mellon Corp | 0.00% | Add +1.9% | 103,536 | $1.8M |
| Qube Research & Technologies Ltd | 0.00% | Add +26.5% | 100,672 | $1.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -52.9% | 100,066 | $1.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +47.9% | 93,385 | $1.7M |
| Two Sigma Advisers, LP | 0.00% | Add +18.2% | 89,700 | $1.6M |
| Ameriprise Financial Inc. | 0.00% | Add +12.1% | 88,900 | $1.6M |
| International Assets Investment Management, LLC | 0.13% | Add +59.2% | 86,900 | $1.6M |
| Focus Partners Wealth | 0.00% | Add +0.0% | 85,353 | $1.5M |
| Oppenheimer & Close, LLC | 1.14% | No change | 82,999 | $1.5M |
| Barclays PLC | 0.00% | Add +38.0% | 81,902 | $1.5M |
| Stilwell Value LLC | 1.09% | No change | 80,000 | $1.4M |
| Swiss National Bank | 0.00% | Reduce -3.4% | 75,900 | $1.4M |
| Cubist Systematic Strategies, LLC | 0.01% | New | 73,914 | $1.3M |
| Great Oak Capital Partners, LLC | 0.34% | Reduce -66.8% | 61,654 | $1.2M |
| Susquehanna International Group, LLP | 0.00% | Reduce -12.6% | 62,493 | $1.1M |
| Legal & General Group Plc | 0.00% | Add +3.7% | 62,014 | $1.1M |
| American Century Companies Inc. | 0.00% | Add +141.0% | 61,935 | $1.1M |
| Rhumbline Advisers | 0.00% | Add +19.1% | 60,519 | $1.1M |
| Lynch & Associates | 0.20% | Reduce -5.6% | 56,851 | $1.0M |
| Farley Capital L.P. | 0.76% | No change | 54,586 | $975K |
| XTX Topco Ltd | 0.04% | New | 52,620 | $940K |
| Trexquant Investment LP | 0.01% | New | 51,781 | $925K |
| SummerHaven Investment Management, LLC | 0.59% | Add +1.7% | 50,826 | $908K |
| Integrated Wealth Concepts LLC | 0.01% | Reduce -5.0% | 49,740 | $888K |
| Jacobs Levy Equity Management, Inc. | 0.00% | New | 49,559 | $885K |
| AQR Capital Management | 0.00% | Add +237.9% | 47,296 | $845K |
| Invesco Ltd. | 0.00% | Add +44.3% | 42,744 | $763K |
| Alliancebernstein L.P. | 0.00% | Reduce -75.0% | 40,730 | $727K |
| Principal Financial Group Inc. | 0.00% | New | 40,267 | $719K |
| Los Angeles Capital Management LLC | 0.00% | New | 38,457 | $687K |
| Citigroup Inc. | 0.00% | Reduce -18.9% | 37,301 | $666K |
| Aviance Capital Partners, LLC | 0.09% | Add +4.0% | 37,167 | $664K |
| BNP Paribas Financial Markets | 0.00% | Reduce -27.2% | 36,539 | $653K |
| Rafferty Asset Management, LLC | 0.00% | Add +8.3% | 35,629 | $636K |
| California State Teachers Retirement System | 0.00% | Reduce -1.9% | 35,234 | $629K |
| Raffles Associates LP | 0.58% | Add +179.6% | 31,136 | $556K |
| Y-Intercept (Hong Kong) Ltd | 0.01% | New | 28,795 | $514K |
| Jane Street Group, LLC | 0.00% | Reduce -51.1% | 26,684 | $477K |
| First Trust Advisors LP | 0.00% | Add +1.9% | 26,304 | $470K |
| Susquehanna Portfolio Strategies, LLC | 0.01% | New | 24,173 | $432K |
| Occudo Quantitative Strategies LP | 0.05% | New | 23,845 | $426K |
| MetLife Investment Management, LLC | 0.00% | No change | 23,755 | $424K |
| Wells Fargo & Company | 0.00% | Reduce -3.8% | 22,474 | $401K |
| Modera Wealth Management, LLC | 0.00% | No change | 22,011 | $393K |
| LPL Financial LLC | 0.00% | Reduce -4.4% | 21,516 | $384K |
| Investment Advisory Group, LLC | 0.11% | No change | 20,000 | $357K |
| &partners | 0.00% | New | 19,810 | $354K |
| Kestra Private Wealth Services, LLC | 0.01% | No change | 19,627 | $351K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -17.1% | 19,185 | $343K |
| Creative Planning | 0.00% | Reduce -34.3% | 19,108 | $341K |
| Sei Investments Co. | 0.00% | No change | 19,103 | $341K |
| Citadel Advisors | 0.00% | New | 18,895 | $337K |
| Royal Bank of Canada | 0.00% | Add +21.6% | 18,158 | $324K |
| D. E. Shaw & Co. | 0.00% | Add +9.7% | 18,116 | $324K |
| T. Rowe Price Associates Inc. | 0.00% | Add +3.3% | 17,653 | $316K |
| Susquehanna Fundamental Investments, LLC | 0.01% | Reduce -63.5% | 16,957 | $303K |
| State of Wyoming | 0.04% | Add +38.9% | 16,365 | $292K |
| Northeast Investment Management | 0.01% | Add +33.3% | 16,000 | $286K |
| Intech Investment Management LLC | 0.00% | Reduce -18.8% | 15,980 | $285K |
| Janus Henderson Group PLC | 0.00% | Reduce -54.6% | 14,800 | $265K |
| SG Americas Securities, LLC | 0.00% | Reduce -33.6% | 14,525 | $259K |
| Commonwealth Equity Services, LLC | 0.00% | Add +0.9% | 13,924 | $249K |
| Martingale Asset Management L P | 0.01% | Reduce -13.6% | 13,400 | $239K |
| PDT Partners, LLC | 0.01% | Reduce -65.7% | 12,803 | $229K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -7.2% | 12,498 | $223K |
| Farther Finance Advisors, LLC | 0.00% | No change | 12,000 | $214K |
| Flagship Harbor Advisors, LLC | 0.01% | New | 11,914 | $213K |
| Voya Investment Management LLC | 0.00% | Add +1.4% | 11,769 | $210K |
| Arizona State Retirement System | 0.00% | Reduce -0.3% | 11,601 | $207K |
| Public Employees Retirement System of Ohio | 0.00% | New | 10,788 | $193K |
| Gray Private Wealth, LLC | 0.10% | No change | 10,588 | $189K |
| Barrett & Company, Inc. | 0.07% | No change | 10,000 | $179K |
| Barry Investment Advisors, LLC | 0.04% | No change | 10,000 | $179K |
"% of holder's portfolio" is NBBK's weight in each manager's 13F, not the share of NB Bancorp Inc. the manager owns.