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, Q4 2024
Institutional positions in NB Bancorp, Inc. as of Dec 31, 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
- 114
- +7 vs. Q3 2024
- Shares held
- 18.1M
- −825.5K (−4.4%) vs. Q3 2024
- Total value
- $326.7M
- −$29.0M (−8.1%) vs. Q3 2024
- New holders
- 16
- 40 more added
- Sold out
- 9
- 34 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding NB Bancorp, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 247,482 | $4.47M | 0.00% | +47,678+23.9% | Added |
| FMR LLC | 250,230 | $4.52M | 0.00% | +19,785+8.6% | Added |
| Bank of America Corp | 312,699 | $5.65M | 0.00% | −205,168−39.6% | Reduced |
| Charles Schwab Investment Management Inc | 319,436 | $5.77M | 0.00% | +4,138+1.3% | Added |
| Morgan Stanley | 344,233 | $6.22M | 0.00% | −279,357−44.8% | Reduced |
| Northern Trust Corp | 358,539 | $6.48M | 0.00% | +15,985+4.7% | Added |
| Goldman Sachs Group Inc | 513,849 | $9.28M | 0.00% | −67,818−11.7% | Reduced |
| Hotchkis & Wiley Capital Management LLC | 543,400 | $9.81M | 0.03% | +213,190+64.6% | Added |
| Geode Capital Management, LLC | 880,699 | $15.9M | 0.00% | −4,544−0.5% | Reduced |
| State Street Corp | 1,023,919 | $18.5M | 0.00% | +29,539+3.0% | Added |
| Wellington Management Group LLP | 1,493,601 | $27.0M | 0.00% | 00.0% | Unchanged |
| Pertento Partners LLP | 1,978,903 | $35.7M | 3.68% | −376,840−16.0% | Reduced |
| Vanguard Group Inc | 2,086,825 | $37.7M | 0.00% | −228,039−9.9% | Reduced |
| BlackRock, Inc. | 3,274,939 | $59.1M | 0.00% | −20,981−0.6% | Reduced |
| International Assets Investment Management, LLC | 0 | $0 | 0.00% | −128,064−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −63,592−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −46,371−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −22,319−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −11,461−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −1,781−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −920−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −601−100.0% | Sold out |
| Rakuten Investment Management, Inc. | – | – | – | – | Not filed |