NB BancorpNBBK
13F holders, Q1 2025 (March 31)121holders +8
20new positions
11sold out
4famous investors
$18.06avg. 13F price*
At the end of Q1 2025, 121 institutions reported holding NB Bancorp Inc. (NBBK) in their 13F filings, up 8 from Q4 2024. 20 opened new positions and 11 sold out. The largest holders were BlackRock, Inc. ($56.8M), Vanguard Group Inc. ($38.1M) and Pertento Partners LLP ($35.8M). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- NB Bancorp Inc.
- CUSIP
- 63945M107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $9.1M |
| Exits | 11 | $6.6M |
All 13F filers, Q4 2024 → Q1 2025: 1,101,047 shares bought and 887,678 shares sold, net +213,369 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 121 holders
| BlackRock, Inc. | 0.00% | Reduce -4.1% | 3,140,847 | $56.8M |
| Vanguard Group Inc. | 0.00% | Add +1.1% | 2,108,757 | $38.1M |
| Pertento Partners LLP | 4.27% | No change | 1,978,903 | $35.8M |
| Wellington Management Group LLP | 0.01% | Add +7.8% | 1,610,589 | $29.1M |
| State Street Corp. | 0.00% | Add +5.5% | 1,080,102 | $19.5M |
| Geode Capital Management, LLC | 0.00% | Add +2.4% | 901,664 | $16.3M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Reduce -3.0% | 526,810 | $9.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -8.3% | 471,423 | $8.5M |
| Northern Trust Corp. | 0.00% | Reduce -3.0% | 347,816 | $6.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.5% | 311,436 | $5.6M |
| Bank of America Corp. | 0.00% | Reduce -2.9% | 303,720 | $5.5M |
| FMR LLC | 0.00% | Add +17.7% | 294,578 | $5.3M |
| Millennium Management | 0.00% | Add +13.1% | 253,543 | $4.6M |
| Morgan Stanley | 0.00% | Reduce -26.9% | 251,644 | $4.5M |
| Prospector Partners LLC | 0.51% | No change | 242,272 | $4.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -14.2% | 212,405 | $3.8M |
| Renaissance Technologies | 0.01% | Add +22.2% | 202,200 | $3.7M |
| Hennessy Advisors Inc. | 0.12% | Reduce -4.9% | 195,000 | $3.5M |
| Panagora Asset Management Inc. | 0.02% | Add +24.9% | 181,282 | $3.3M |
| Deutsche Bank AG | 0.00% | Reduce -1.9% | 180,815 | $3.3M |
| Great Oak Capital Partners, LLC | 1.05% | No change | 185,686 | $3.1M |
| Endeavour Capital Advisors Inc. | 1.10% | Add +4.3% | 164,179 | $3.0M |
| Alliancebernstein L.P. | 0.00% | Reduce -10.4% | 163,250 | $2.9M |
| Two Sigma Investments, LP | 0.01% | Add +34.2% | 150,397 | $2.7M |
| Nuveen, LLC | 0.00% | — | 132,258 | $2.4M |
| Marshall Wace, LLP | 0.00% | New | 118,623 | $2.1M |
| Victory Capital Management Inc. | 0.00% | Reduce -1.6% | 116,199 | $2.1M |
| Mangrove Partners Im, LLC | 0.22% | No change | 103,743 | $1.9M |
| Bank of New York Mellon Corp | 0.00% | Reduce 0.0% | 101,627 | $1.8M |
| Focus Partners Wealth | 0.00% | Reduce -4.1% | 85,320 | $1.5M |
| Oppenheimer & Close, LLC | 1.24% | No change | 82,999 | $1.5M |
| Stilwell Value LLC | 1.25% | No change | 80,000 | $1.4M |
| Qube Research & Technologies Ltd | 0.00% | New | 79,600 | $1.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -0.3% | 79,300 | $1.4M |
| Swiss National Bank | 0.00% | Add +4.8% | 78,600 | $1.4M |
| Two Sigma Advisers, LP | 0.00% | Add +102.9% | 75,900 | $1.4M |
| Susquehanna International Group, LLP | 0.00% | Add +88.6% | 71,537 | $1.3M |
| EJF Capital LP | 0.80% | Add +56.8% | 69,963 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +33.0% | 63,138 | $1.1M |
| Lynch & Associates | 0.24% | Reduce -11.9% | 60,226 | $1.1M |
| Legal & General Group Plc | 0.00% | Add +8.5% | 59,777 | $1.1M |
| Barclays PLC | 0.00% | Reduce -23.4% | 59,332 | $1.1M |
| UBS Group AG | 0.00% | Reduce -27.3% | 57,894 | $1.0M |
| Jane Street Group, LLC | 0.00% | New | 54,613 | $987K |
| International Assets Investment Management, LLC | 0.09% | New | 54,600 | $987K |
| Farley Capital L.P. | 0.91% | No change | 54,586 | $986K |
| Integrated Wealth Concepts LLC | 0.01% | Reduce -18.7% | 52,370 | $946K |
| Rhumbline Advisers | 0.00% | Reduce -34.6% | 50,805 | $918K |
| BNP Paribas Financial Markets | 0.00% | Reduce -31.1% | 50,185 | $907K |
| SummerHaven Investment Management, LLC | 0.63% | Add +1.5% | 49,977 | $903K |
| Susquehanna Fundamental Investments, LLC | 0.01% | New | 46,446 | $839K |
| Citigroup Inc. | 0.00% | Reduce -5.9% | 45,992 | $831K |
| Piper Sandler & Co. | 86.63% | New | 40,000 | $716K |
| PDT Partners, LLC | 0.05% | Add +78.5% | 37,286 | $674K |
| California State Teachers Retirement System | 0.00% | No change | 35,925 | $649K |
| Aviance Capital Partners, LLC | 0.09% | New | 35,733 | $646K |
| Janus Henderson Group PLC | 0.00% | Add +31.2% | 32,636 | $613K |
| Rafferty Asset Management, LLC | 0.00% | Add +13.3% | 32,909 | $595K |
| Invesco Ltd. | 0.00% | Add +52.1% | 29,632 | $535K |
| Creative Planning | 0.00% | Add +20.3% | 29,090 | $526K |
| First Trust Advisors LP | 0.00% | Reduce -1.0% | 25,806 | $466K |
| American Century Companies Inc. | 0.00% | Add +8.0% | 25,697 | $464K |
| MetLife Investment Management, LLC | 0.00% | Reduce -2.0% | 23,755 | $429K |
| Wells Fargo & Company | 0.00% | Add +2.3% | 23,369 | $422K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.4% | 23,127 | $418K |
| LPL Financial LLC | 0.00% | Add +12.5% | 22,500 | $407K |
| Modera Wealth Management, LLC | 0.01% | No change | 22,011 | $398K |
| SG Americas Securities, LLC | 0.00% | Reduce -14.6% | 21,871 | $395K |
| Investment Advisory Group, LLC | 0.12% | New | 20,000 | $361K |
| Intech Investment Management LLC | 0.00% | Add +43.2% | 19,669 | $355K |
| Kestra Private Wealth Services, LLC | 0.01% | No change | 19,627 | $355K |
| Sei Investments Co. | 0.00% | No change | 19,103 | $345K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.5% | 19,074 | $345K |
| Engineers Gate Manager LP | 0.01% | Reduce -20.3% | 18,960 | $343K |
| T. Rowe Price Associates Inc. | 0.00% | Add +13.7% | 17,092 | $309K |
| D. E. Shaw & Co. | 0.00% | Add +40.8% | 16,521 | $299K |
| Martingale Asset Management L P | 0.01% | New | 15,500 | $280K |
| Royal Bank of Canada | 0.00% | Reduce -7.6% | 14,926 | $270K |
| AQR Capital Management | 0.00% | New | 13,998 | $253K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -26.6% | 13,797 | $249K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +9.8% | 13,472 | $243K |
| Northeast Investment Management | 0.01% | New | 12,000 | $217K |
| Farther Finance Advisors, LLC | 0.01% | No change | 12,000 | $216K |
| State of Wyoming | 0.03% | Add +40.9% | 11,782 | $213K |
| Arizona State Retirement System | 0.00% | Add +4.4% | 11,637 | $210K |
| Voya Investment Management LLC | 0.00% | Reduce -9.7% | 11,601 | $210K |
| Centiva Capital, LP | 0.01% | New | 11,514 | $208K |
| Raffles Associates LP | 0.24% | No change | 11,136 | $201K |
| Gray Private Wealth, LLC | 0.12% | No change | 10,588 | $191K |
| Barrett & Company, Inc. | 0.08% | No change | 10,000 | $181K |
| Barry Investment Advisors, LLC | 0.05% | No change | 10,000 | $181K |
| New York State Common Retirement Fund | 0.00% | No change | 10,000 | $181K |
| Federated Hermes, Inc. | 0.00% | No change | 9,711 | $175K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 9,257 | $167K |
| KLP Kapitalforvaltning As | 0.00% | No change | 7,100 | $128K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 6,676 | $121K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 3,814 | $69K |
| Resources Management Corp. /CT/ | 0.00% | No change | 1,500 | $27K |
| Quarry LP | 0.01% | New | 1,452 | $26K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -68.0% | 1,420 | $26K |
"% of holder's portfolio" is NBBK's weight in each manager's 13F, not the share of NB Bancorp Inc. the manager owns.