NB Bancorp, Inc. Common Stock (NBBK)
SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED
NB Bancorp, Inc. Common Stock (NBBK) is listed on Nasdaq, where it has traded since December 28, 2023.
- Listed On
- Nasdaq
- Listed Since
- December 28, 2023
- Employees
- 526
- Market Cap
- $970M
About NB Bancorp, Inc. Common Stock
NB Bancorp Inc operates as the holding company of Needham Bank. The group's business consists of taking deposits from the general public and investing those deposits, together with funds generated from operations, in commercial real estate and multifamily loans, one- to four-family residential real estate loans, construction and land development loans, commercial and industrial loans, consumer loans, and other related services.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 154 institutions reported holding NBBK, with 22.1 million shares worth $467.8 million in aggregate. The largest reported holder was BlackRock, with 3.3 million shares worth $70.4 million. Of the 5 largest holders listed below, 3 added shares and 2 reduced their positions during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| BlackRock | 3,331,544 | $70M | Added 8.02% |
| Vanguard | 2,378,707 | $50M | Reduced 0.89% |
| Altravue Capital | 1,655,108 | $35M | Added 26.92% |
| Pertento Partners | 1,475,770 | $31M | Reduced 33.12% |
| State Street | 1,471,766 | $31M | Added 13.78% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is NBBK?
NB Bancorp, Inc. Common Stock (NBBK) is listed on Nasdaq, where it has traded since December 28, 2023.
Who are the largest institutional holders of NBBK?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of NBBK were BlackRock, Vanguard and Altravue Capital.
How many institutions own NBBK?
154 institutions reported a position in NBBK for the quarter ended June 30, 2026, worth $467.8 million in total.
Did institutions buy or sell NBBK last quarter?
Of the 5 largest reported holders, 3 added shares and 2 reduced their positions during the quarter. Every reported holder and its change is on the SentiSense ownership page for NBBK.
Every reported institutional holder, plus insider and congressional trades in NBBK, on SentiSense.