NB Bancorp, Inc.

Historical 13F Holders

Symbol
NBBK
CUSIP
63945M107
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 63945M107 since 12/18/2024, newest first.

Filer % of Class Filed
Pertento Partners LLP 13G/A Amendment 2
4.6% 5/15/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 1 0% 3/27/2026
Event 3/13/2026
Needham Bank Employee Stock Ownership Plan Trust 13G 7.5% 2/13/2026
Event 12/31/2025
Vanguard Group Inc 13G 5.0% 1/30/2026
Event 12/31/2025
Pertento Partners LLP 13G/A Amendment 1
5.1% 12/5/2025
Event 12/1/2025
BlackRock, Inc. 13G/A Amendment 1 6.7% 10/17/2025
Event 9/30/2025
Vanguard Group Inc 13G/A Amendment 1 4.9% 7/29/2025
Event 6/30/2025
Pertento Partners LLP 13G
5.2% 6/11/2025
Event 6/6/2025
Vanguard Group Inc 13G 5.0% 4/30/2025
Event 3/31/2025
Pertento Partners LLP 13G/A Amendment 1
4.6% 2/12/2025
Event 12/31/2024
Vanguard Group Inc 13G/A Amendment 2 4.9% 1/30/2025
Event 12/31/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 15 193 k $4.27 M
2026 Q2 167 23.3 M $515 M
2026 Q1 181 23.1 M $488 M
2025 Q4 168 22.3 M $441 M
2025 Q3 150 19.3 M $341 M
2025 Q2 136 18.8 M $335 M
2025 Q1 128 18.4 M $332 M
2024 Q4 122 18.2 M $328 M
2024 Q3 116 19.1 M $359 M
2024 Q2 98 17.1 M $258 M
2024 Q1 60 9.82 M $134 M
2023 Q4 20 2.66 M $35.8 M