NB Bancorp, Inc. (NBBK) Institutional Ownership & Insider Trading
161 institutions reported holding NB Bancorp, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 27 insider trades on Form 4 since 2025-10-01.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
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- Market cap
- 1.0B
- P/E TTM
- 15.5
- Dividend yield
- 1.2%
- 52-week
- —
- Next earnings
- 20 Jan, in 88 days
Institutions · all 13F filers
quarter to 30 Jun 2026 · filers in both quarters161 institutions held 51.5% of the shares. Across filers that reported both quarters, shares held changed -2.5%.
Largest moves, shares (millions)
Institutional flow by quarter
net shares added or trimmed, millions · filers in both quarters| Quarter | Holders | Shares held, M | Change | Increased | New | Decreased | Closed |
|---|---|---|---|---|---|---|---|
| Jun 26 | 161 | 23 | -2.5% | 60 | 11 | 42 | 23 |
| Mar 26 | 176 | 23 | +4.5% | 58 | 26 | 35 | 14 |
| Dec 25 | 161 | 22 | +17.0% | 70 | 32 | 32 | 12 |
| Sep 25 | 142 | 19 | +3.0% | 38 | 23 | 40 | 12 |
| Jun 25 | 129 | 19 | +1.9% | 40 | 18 | 45 | 8 |
| Mar 25 | 121 | 18 | +0.7% | 35 | 18 | 34 | 9 |
| Dec 24 | 113 | 18 | -4.6% | 37 | 11 | 30 | 7 |
| Sep 24 | 106 | 19 | +12.1% | 33 | 26 | 21 | 11 |
NB Bancorp, Inc. — questions
- Who owns NB Bancorp, Inc. stock?
- 161 institutions reported NB Bancorp, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (7.6%), VANGUARD CAPITAL MANAGEMENT LLC (3.8%), AltraVue Capital, LLC (3.8%).
- Are NB Bancorp, Inc. insiders buying or selling?
- 27 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.
Every figure on this page comes from NB Bancorp, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.