NB BANCORP INC

Ticker: NBBK CUSIP: 63945M107 Class: Common Stock

Harbor Advisors LLC's Holding History (CIK: 0001687156)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 10,000 Value ($000) $198 Avg Close $19.03 Range $16.84 - $21.57

Q3 2025

Shares 10,000 Value ($000) $177 Avg Close $18.34 Range $16.76 - $19.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,000	$198	$19.03	$16.84 - $21.57
Q3 2025	10,000	$177	$18.34	$16.76 - $19.42