NB Bancorp, Inc. (NBBK)
Nasdaq: NBBK · Savings Institutions, Not Federally Chartered · Needham, MA · filing with the SEC since 2023
Who owns NB Bancorp, Inc.
As filed with the SECHolders of 5% or more
2
Needham Bank Employee Stock Ownership Plan Trust holds 7.5% of Common Stock, par value $0.01 per share, as its SCHEDULE 13G filed Feb 13, 2026 says.
Directors and officers
22
report now, of 27 people on the record since 2023. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
Needham Bank Employee Stock Ownership Plan Trust
SCHEDULE 13G · filed Feb 13, 2026 · Common Stock, par value $0.01 per share
Blackrock, Inc.
SCHEDULE 13G/A · filed Oct 17, 2025 · Common Stock
Pertento Partners LLP
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, par value $0.01 per share · reported falling below 5%, from 5.1% in Dec 5, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 5.02% in Jan 30, 2026
What NBBK reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Provident Bancorp, Inc. and BankProv
A company bought · acquisition · Oct 2025 · owns, named in the 10-K filed Mar 3, 2026
Century Cannabis
A company bought · acquisition · owns, named in the 10-K filed Mar 3, 2026
5 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 3, 2026.
Insider tradesForm 4
1sales
28purchases
0sales on a scheduled plan
1people selling
$0sold, in dollars
$900,000bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 27 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Campanelli Joseph P | President & CEO | 0 | $0 | 0 | 22 | $400,000 |
| Pascucci Hope | director | 0 | $0 | 0 | 3 | $500,000 |
| Lapointe Jean-Pierre | SEVP and CFO | 0 | $0 | 0 | 2 | $0 |
| Evangelista Paul A | EVP, Dir Spec. Bank. Ctr. | 0 | $0 | 0 | 1 | $0 |
| Henkin Kevin | EVP, Chief Credit Officer | 1 | $0 | 0 | 0 | $0 |