NB Bancorp, Inc.
NBBK- Exchange
- Nasdaq
- Industry
- Savings Institutions, Not Federally Chartered
- SEC CIK
- 0001979330
In the last 90 days, NB Bancorp, Inc. insiders filed 2 open-market purchases and 1 sale; 161 institutions reported holding it in 13F filings for Q2 2026, worth $474.9M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in NB Bancorp, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 122
- +10 vs. Q4 2024
- Shares held
- 18.3M
- +345.6K (+1.9%) vs. Q4 2024
- Total value
- $331.3M
- +$6.44M (+2.0%) vs. Q4 2024
- New holders
- 21
- 36 more added
- Sold out
- 11
- 38 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NBBK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 161 | $474.9M |
| Q1 2026 | 177 | $486.3M |
| Q4 2025 | 164 | $441.3M |
| Q3 2025 | 146 | $338.8M |
| Q2 2025 | 132 | $334.4M |
| Q1 2025 | 122 | $331.3M |
| Q4 2024 | 114 | $326.7M |
| Q3 2024 | 108 | $355.7M |
| Q2 2024 | 92 | $253.2M |
| Q1 2024 | 56 | $131.0M |
| Q4 2023 | 17 | $34.7M |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding NB Bancorp, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Covestor Ltd | 23 | $0 | 0.00% | −35−60.3% | Reduced |
| IFP Advisors, Inc | 0 | $145 | 0.00% | 0 | Unchanged |
| Larson Financial Group LLC | 12 | $217 | 0.00% | +12 | New |
| US Bancorp | 13 | $235 | 0.00% | +13 | New |
| Stephens Consulting, LLC | 20 | $362 | 0.00% | +20 | New |
| Lindbrook Capital, LLC | 25 | $452 | 0.00% | −50−66.7% | Reduced |
| Parkside Financial Bank & Trust | 25 | $452 | 0.00% | +25 | New |
| Nisa Investment Advisors, LLC | 26 | $470 | 0.00% | +26 | New |
| Quadrant Capital Group LLC | 27 | $488 | 0.00% | −22−44.9% | Reduced |
| Allworth Financial LP | 31 | $527 | 0.00% | +31 | New |
| Signaturefd, LLC | 34 | $614 | 0.00% | −610−94.7% | Reduced |
| American Capital Advisory, LLC | 50 | $904 | 0.00% | 00.0% | Unchanged |
| Coldstream Capital Management Inc | 82 | $1.48K | 0.00% | +82 | New |
| Russell Investments Group, Ltd. | 88 | $1.59K | 0.00% | +12+15.8% | Added |
| Parallel Advisors, LLC | 96 | $1.74K | 0.00% | +15+18.5% | Added |
| Rothschild Investment LLC | 105 | $1.90K | 0.00% | +60+133.3% | Added |
| GAMMA Investing LLC | 276 | $4.99K | 0.00% | +2+0.7% | Added |
| CWM, LLC | 343 | $6.00K | 0.00% | −106−23.6% | Reduced |
| Eastern Bank | 405 | $7.32K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 672 | $12.1K | 0.00% | −575−46.1% | Reduced |
| Advisor Group Holdings, Inc. | 968 | $17.5K | 0.00% | −27−2.7% | Reduced |
| Amalgamated Bank | 1,347 | $24.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,420 | $25.7K | 0.00% | −3,013−68.0% | Reduced |
| Quarry LP | 1,452 | $26.2K | 0.01% | +1,452 | New |
| Resources Management Corp | 1,500 | $27.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 3,814 | $68.9K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,676 | $120.6K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 7,100 | $128.3K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 9,257 | $167.3K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 9,711 | $175.5K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 10,000 | $180.7K | 0.00% | 00.0% | Unchanged |
| Barrett & Company, Inc. | 10,000 | $180.7K | 0.08% | 00.0% | Unchanged |
| Barry Investment Advisors, LLC | 10,000 | $180.7K | 0.05% | 00.0% | Unchanged |
| Gray Private Wealth, LLC | 10,588 | $191.3K | 0.12% | 00.0% | Unchanged |
| Raffles Associates LP | 11,136 | $201.2K | 0.25% | 00.0% | Unchanged |
| Centiva Capital, LP | 11,514 | $208.1K | 0.01% | +11,514 | New |
| Voya Investment Management LLC | 11,601 | $209.6K | 0.00% | −1,241−9.7% | Reduced |
| Arizona State Retirement System | 11,637 | $210.3K | 0.00% | +492+4.4% | Added |
| State of Wyoming | 11,782 | $212.9K | 0.03% | +3,421+40.9% | Added |
| Farther Finance Advisors, LLC | 12,000 | $215.6K | 0.01% | 00.0% | Unchanged |
| Northeast Investment Management | 12,000 | $216.8K | 0.01% | +12,000 | New |
| Manufacturers Life Insurance Company, The | 13,472 | $243.4K | 0.00% | +1,199+9.8% | Added |
| Commonwealth Equity Services, LLC | 13,797 | $249.0K | 0.00% | −5,000−26.6% | Reduced |
| AQR Capital Management LLC | 13,998 | $252.9K | 0.00% | +13,998 | New |
| Royal Bank of Canada | 14,926 | $270.0K | 0.00% | −1,220−7.6% | Reduced |
| Martingale Asset Management L P | 15,500 | $280.1K | 0.01% | +15,500 | New |
| D. E. Shaw & Co., Inc. | 16,521 | $298.5K | 0.00% | +4,788+40.8% | Added |
| Price T Rowe Associates Inc | 17,092 | $309.0K | 0.00% | +2,060+13.7% | Added |
| Engineers Gate Manager LP | 18,960 | $342.6K | 0.01% | −4,829−20.3% | Reduced |
| Corebridge Financial, Inc. | 19,074 | $344.7K | 0.00% | −283−1.5% | Reduced |
| SEI Investments Co | 19,103 | $345.2K | 0.00% | 00.0% | Unchanged |
| Kestra Private Wealth Services, LLC | 19,627 | $354.7K | 0.01% | 00.0% | Unchanged |
| Intech Investment Management LLC | 19,669 | $355.4K | 0.00% | +5,936+43.2% | Added |
| Investment Advisory Group, LLC | 20,000 | $361.4K | 0.12% | +20,000 | New |
| SG Americas Securities, LLC | 21,871 | $395.0K | 0.00% | −3,731−14.6% | Reduced |
| Modera Wealth Management, LLC | 22,011 | $397.7K | 0.01% | 00.0% | Unchanged |
| LPL Financial LLC | 22,500 | $406.6K | 0.00% | +2,500+12.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 23,127 | $417.9K | 0.00% | +975+4.4% | Added |
| Wells Fargo & Company | 23,369 | $422.3K | 0.00% | +517+2.3% | Added |
| MetLife Investment Management | 23,755 | $429.3K | 0.00% | −496−2.0% | Reduced |
| American Century Companies Inc | 25,697 | $464.3K | 0.00% | +1,903+8.0% | Added |
| First Trust Advisors LP | 25,806 | $466.3K | 0.00% | −260−1.0% | Reduced |
| Creative Planning | 29,090 | $525.7K | 0.00% | +4,912+20.3% | Added |
| Invesco Ltd. | 29,632 | $535.5K | 0.00% | +10,151+52.1% | Added |
| Rafferty Asset Management, LLC | 32,909 | $594.7K | 0.00% | +3,863+13.3% | Added |
| Janus Henderson Group PLC | 32,636 | $613.4K | 0.00% | +7,765+31.2% | Added |
| Aviance Capital Partners, LLC | 35,733 | $645.7K | 0.09% | +35,733 | New |
| California State Teachers Retirement System | 35,925 | $649.2K | 0.00% | 00.0% | Unchanged |
| PDT Partners, LLC | 37,286 | $673.8K | 0.05% | +16,403+78.5% | Added |
| Piper Sandler & Co. | 40,000 | $715.8K | 0.54% | +40,000 | New |
| Citigroup Inc | 45,992 | $831.1K | 0.00% | −2,892−5.9% | Reduced |
| Susquehanna Fundamental Investments, LLC | 46,446 | $839.3K | 0.01% | +46,446 | New |
| SummerHaven Investment Management, LLC | 49,977 | $903.1K | 0.63% | +751+1.5% | Added |
| BNP Paribas Arbitrage, SA | 50,185 | $906.8K | 0.00% | −22,635−31.1% | Reduced |
| Rhumbline Advisers | 50,805 | $918.0K | 0.00% | −26,872−34.6% | Reduced |
| Integrated Wealth Concepts LLC | 52,370 | $946.3K | 0.01% | −12,034−18.7% | Reduced |
| Farley Capital L.P. | 54,586 | $986.4K | 0.91% | 00.0% | Unchanged |
| International Assets Investment Management, LLC | 54,600 | $986.6K | 0.09% | +54,600 | New |
| Jane Street Group, LLC | 54,613 | $986.9K | 0.00% | +54,613 | New |
| UBS Group AG | 57,894 | $1.05M | 0.00% | −21,762−27.3% | Reduced |
| Barclays PLC | 59,332 | $1.07M | 0.00% | −18,112−23.4% | Reduced |
| Legal & General Group Plc | 59,777 | $1.08M | 0.00% | +4,677+8.5% | Added |
| Lynch & Associates | 60,226 | $1.09M | 0.24% | −8,172−11.9% | Reduced |
| UBS Asset Management Americas Inc | 63,138 | $1.14M | 0.00% | +15,667+33.0% | Added |
| EJF Capital LLC | 69,963 | $1.26M | 0.80% | +25,341+56.8% | Added |
| Susquehanna International Group, LLP | 71,537 | $1.29M | 0.00% | +33,615+88.6% | Added |
| Two Sigma Advisers, LP | 75,900 | $1.37M | 0.00% | +38,500+102.9% | Added |
| Swiss National Bank | 78,600 | $1.42M | 0.00% | +3,600+4.8% | Added |
| Ameriprise Financial Inc | 79,300 | $1.43M | 0.00% | −200−0.3% | Reduced |
| Qube Research & Technologies Ltd | 79,600 | $1.44M | 0.00% | +79,600 | New |
| Stilwell Value LLC | 80,000 | $1.45M | 0.74% | 00.0% | Unchanged |
| Oppenheimer & Close, LLC | 82,999 | $1.50M | 1.24% | 00.0% | Unchanged |
| Colony Group, LLC | 85,320 | $1.54M | 0.00% | −3,680−4.1% | Reduced |
| Bank of New York Mellon Corp | 101,627 | $1.84M | 0.00% | −20.0% | Reduced |
| Mangrove Partners | 103,743 | $1.87M | 0.21% | 00.0% | Unchanged |
| Victory Capital Management Inc | 116,199 | $2.10M | 0.00% | −1,920−1.6% | Reduced |
| Marshall Wace, LLP | 118,623 | $2.14M | 0.00% | +118,623 | New |
| Nuveen, LLC | 132,258 | $2.39M | 0.00% | +132,258 | New |
| Two Sigma Investments, LP | 150,397 | $2.72M | 0.01% | +38,292+34.2% | Added |
| Alliancebernstein L.P. | 163,250 | $2.95M | 0.00% | −19,000−10.4% | Reduced |