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, Q3 2024
Institutional positions in NB Bancorp, Inc. as of Sep 30, 2024. 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
- 108
- +17 vs. Q2 2024
- Shares held
- 18.9M
- +5.27M (+38.6%) vs. Q2 2024
- Total value
- $355.7M
- +$149.4M (+72.4%) vs. Q2 2024
- New holders
- 29
- 36 more added
- Sold out
- 12
- 23 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding NB Bancorp, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,295,920 | $61.2M | 0.00% | +3,295,920 | New |
| Pertento Partners LLP | 2,355,743 | $43.7M | 5.32% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,314,864 | $43.0M | 0.00% | +67,122+3.0% | Added |
| Wellington Management Group LLP | 1,493,601 | $27.7M | 0.00% | +290,818+24.2% | Added |
| State Street Corp | 994,380 | $18.5M | 0.00% | +140,960+16.5% | Added |
| Geode Capital Management, LLC | 885,243 | $16.4M | 0.00% | +16,270+1.9% | Added |
| Morgan Stanley | 623,590 | $11.6M | 0.00% | +393,709+171.3% | Added |
| Goldman Sachs Group Inc | 581,667 | $10.8M | 0.00% | +81,186+16.2% | Added |
| Bank of America Corp | 517,867 | $9.61M | 0.00% | +318,984+160.4% | Added |
| Alliancebernstein L.P. | 388,525 | $7.21M | 0.00% | −263,500−40.4% | Reduced |
| International Assets Investment Management, LLC | 128,064 | $6.90M | 0.03% | +121,164+1,756.0% | Added |
| Northern Trust Corp | 342,554 | $6.36M | 0.00% | +252,741+281.4% | Added |
| Hotchkis & Wiley Capital Management LLC | 330,210 | $6.13M | 0.02% | +330,210 | New |
| Charles Schwab Investment Management Inc | 315,298 | $5.85M | 0.00% | +3,611+1.2% | Added |
| Stieven Capital Advisors, L.P. | 249,542 | $4.63M | 0.88% | −114,089−31.4% | Reduced |
| Prospector Partners LLC | 242,272 | $4.50M | 0.48% | 00.0% | Unchanged |
| FMR LLC | 230,445 | $4.28M | 0.00% | +229,118+17,265.9% | Added |
| JPMorgan Chase & Co | 199,804 | $3.71M | 0.00% | +108,774+119.5% | Added |
| Great Oak Capital Partners, LLC | 194,686 | $3.49M | 1.21% | +5,000+2.6% | Added |
| Deutsche Bank AG | 171,285 | $3.18M | 0.00% | +4,589+2.8% | Added |
| Hennessy Advisors Inc | 165,000 | $3.06M | 0.10% | +10,000+6.5% | Added |
| Endeavour Capital Advisors Inc | 157,425 | $2.92M | 0.92% | −24,344−13.4% | Reduced |
| Panagora Asset Management Inc | 151,831 | $2.82M | 0.01% | +46,797+44.6% | Added |
| Two Sigma Investments, LP | 126,778 | $2.35M | 0.01% | +71,245+128.3% | Added |
| Mangrove Partners | 115,270 | $2.14M | 0.21% | 00.0% | Unchanged |
| Victory Capital Management Inc | 95,753 | $1.78M | 0.00% | −21,650−18.4% | Reduced |
| EJF Capital LLC | 94,730 | $1.76M | 1.17% | −175,266−64.9% | Reduced |
| Bank of New York Mellon Corp | 94,221 | $1.75M | 0.00% | −26,467−21.9% | Reduced |
| Millennium Management LLC | 92,040 | $1.71M | 0.00% | +44,818+94.9% | Added |
| Oppenheimer & Close, LLC | 82,999 | $1.54M | 1.23% | 00.0% | Unchanged |
| Barclays PLC | 81,114 | $1.51M | 0.00% | +34,235+73.0% | Added |
| Stilwell Value LLC | 80,000 | $1.48M | 0.74% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 76,319 | $1.42M | 0.00% | +33,477+78.1% | Added |
| Renaissance Technologies LLC | 76,200 | $1.41M | 0.00% | +5,500+7.8% | Added |
| Swiss National Bank | 75,000 | $1.39M | 0.00% | +75,000 | New |
| Integrated Wealth Concepts LLC | 74,241 | $1.38M | 0.02% | +170+0.2% | Added |
| Nuveen Asset Management, LLC | 73,694 | $1.37M | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 72,600 | $1.35M | 0.00% | −5,144−6.6% | Reduced |
| Lynch & Associates | 68,398 | $1.27M | 0.27% | 00.0% | Unchanged |
| Jane Street Group, LLC | 63,592 | $1.18M | 0.00% | +49,943+365.9% | Added |
| Citigroup Inc | 57,244 | $1.06M | 0.00% | +332+0.6% | Added |
| Rafferty Asset Management, LLC | 55,828 | $1.04M | 0.00% | −26,537−32.2% | Reduced |
| Legal & General Group Plc | 55,318 | $1.03M | 0.00% | +51,957+1,545.9% | Added |
| Farley Capital L.P. | 54,586 | $1.01M | 0.89% | −25,414−31.8% | Reduced |
| Rhumbline Advisers | 53,807 | $998.7K | 0.00% | −362−0.7% | Reduced |
| Tudor Investment Corp Et Al | 52,604 | $976.3K | 0.01% | +52,604 | New |
| UBS Asset Management Americas Inc | 51,290 | $951.9K | 0.00% | +51,290 | New |
| Twin Focus Capital Partners, LLC | 51,164 | $949.6K | 0.15% | 00.0% | Unchanged |
| SummerHaven Investment Management, LLC | 49,226 | $913.6K | 0.56% | +49,226 | New |
| Deerfield Management Company, L.P. (Series C) | 46,371 | $860.6K | 0.01% | +46,371 | New |
| Ameriprise Financial Inc | 44,300 | $822.2K | 0.00% | +44,300 | New |
| California State Teachers Retirement System | 36,362 | $674.9K | 0.00% | +33,541+1,189.0% | Added |
| PDT Partners, LLC | 30,753 | $570.8K | 0.05% | +13,480+78.0% | Added |
| SG Americas Securities, LLC | 26,291 | $488.0K | 0.00% | +8,589+48.5% | Added |
| Janus Henderson Group PLC | 26,182 | $485.8K | 0.00% | +14,284+120.1% | Added |
| Susquehanna International Group, LLP | 24,210 | $449.3K | 0.00% | −10,157−29.6% | Reduced |
| MetLife Investment Management | 22,958 | $426.1K | 0.00% | +12,936+129.1% | Added |
| Occudo Quantitative Strategies LP | 22,319 | $414.2K | 0.08% | −6,324−22.1% | Reduced |
| Modera Wealth Management, LLC | 22,011 | $408.5K | 0.01% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 21,363 | $396.5K | 0.00% | +21,363 | New |
| Corebridge Financial, Inc. | 20,818 | $386.4K | 0.00% | −128−0.6% | Reduced |
| LPL Financial LLC | 20,000 | $371.2K | 0.00% | 00.0% | Unchanged |
| Kestra Private Wealth Services, LLC | 19,627 | $364.3K | 0.01% | 00.0% | Unchanged |
| Invesco Ltd. | 18,035 | $334.7K | 0.00% | −14,724−44.9% | Reduced |
| Wells Fargo & Company | 17,875 | $331.8K | 0.00% | +768+4.5% | Added |
| Royal Bank of Canada | 16,276 | $302.0K | 0.00% | +2,202+15.6% | Added |
| SEI Investments Co | 14,203 | $263.6K | 0.00% | +14,203 | New |
| American Century Companies Inc | 14,182 | $263.2K | 0.00% | +14,182 | New |
| Jump Financial, LLC | 13,931 | $258.6K | 0.01% | −13,179−48.6% | Reduced |
| Voya Investment Management LLC | 13,317 | $247.2K | 0.00% | −190−1.4% | Reduced |
| Commonwealth Equity Services, LLC | 12,750 | $237.0K | 0.00% | −1,051−7.6% | Reduced |
| Price T Rowe Associates Inc | 12,735 | $237.0K | 0.00% | +329+2.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 12,676 | $235.3K | 0.00% | +12,676 | New |
| Manufacturers Life Insurance Company, The | 12,442 | $230.9K | 0.00% | −1,547−11.1% | Reduced |
| Farther Finance Advisors, LLC | 12,000 | $222.7K | 0.01% | 00.0% | Unchanged |
| Centiva Capital, LP | 11,461 | $212.7K | 0.01% | +11,461 | New |
| Raffles Associates LP | 11,154 | $207.0K | 0.21% | −211,865−95.0% | Reduced |
| Arizona State Retirement System | 11,066 | $205.4K | 0.00% | +11,066 | New |
| State of Wyoming | 10,820 | $200.8K | 0.03% | +8,623+392.5% | Added |
| Gray Private Wealth, LLC | 10,588 | $196.5K | 0.12% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 10,400 | $193.0K | 0.00% | +10,400 | New |
| Barry Investment Advisors, LLC | 10,000 | $185.6K | 0.06% | −10,000−50.0% | Reduced |
| New York State Common Retirement Fund | 10,000 | $185.6K | 0.00% | −5,800−36.7% | Reduced |
| Barrett & Company, Inc. | 10,000 | $185.6K | 0.08% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 3,814 | $70.8K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,360 | $43.8K | 0.00% | −2,510−51.5% | Reduced |
| Federated Hermes, Inc. | 2,289 | $42.5K | 0.00% | +2,289 | New |
| Fairfield Financial Advisors, LTD | 2,000 | $37.1K | 0.01% | 00.0% | Unchanged |
| Quarry LP | 1,781 | $33.1K | 0.01% | +1,781 | New |
| Rakuten Investment Management, Inc. | 1,719 | $31.5K | 0.00% | 00.0% | Unchanged |
| Resources Management Corp | 1,500 | $28.0K | 0.00% | +1,500 | New |
| Amalgamated Bank | 1,347 | $25.0K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 1,302 | $24.2K | 0.00% | −5,731−81.5% | Reduced |
| Steward Partners Investment Advisory, LLC | 1,000 | $18.6K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 968 | $18.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 920 | $17.0K | 0.00% | +88+10.6% | Added |
| Larson Financial Group LLC | 601 | $11.2K | 0.00% | +601 | New |
| Signaturefd, LLC | 519 | $9.63K | 0.00% | +519 | New |
| Eastern Bank | 405 | $7.52K | 0.00% | +405 | New |
| CWM, LLC | 344 | $6.00K | 0.00% | +344 | New |