NB BANCORP INC

Ticker: NBBK CUSIP: 63945M107 Class: Common Stock

PROSPECTOR PARTNERS LLC's Holding History (CIK: 0001080380)

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

Q3 2025

Shares 150,862 Value ($000) $2,663 Avg Close $18.34 Range $16.76 - $19.42

Q2 2025

Shares 167,622 Value ($000) $2,994 Avg Close $16.89 Range $15.09 - $18.16

Q1 2025

Shares 242,272 Value ($000) $4,378 Avg Close $18.59 Range $16.48 - $19.50

Q4 2024

Shares 242,272 Value ($000) $4,375 Avg Close $19.21 Range $17.47 - $21.05

Q3 2024

Shares 242,272 Value ($000) $4,497 Avg Close $17.68 Range $14.84 - $19.27

Q2 2024

Shares 242,272 Value ($000) $3,653 Avg Close $14.57 Range $13.26 - $16.05

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	150,862	$2,663	$18.34	$16.76 - $19.42
Q2 2025	167,622	$2,994	$16.89	$15.09 - $18.16
Q1 2025	242,272	$4,378	$18.59	$16.48 - $19.50
Q4 2024	242,272	$4,375	$19.21	$17.47 - $21.05
Q3 2024	242,272	$4,497	$17.68	$14.84 - $19.27
Q2 2024	242,272	$3,653	$14.57	$13.26 - $16.05