NB BANCORP INC

Ticker: NBBK CUSIP: 63945M107 Class: Common Stock

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q4 2025

Shares 39,493 Value ($000) $1 Avg Close $19.03 Range $16.84 - $21.57

Q3 2025

Shares 18,560 Value ($000) $0 Avg Close $18.34 Range $16.76 - $19.42

Q2 2025

Shares 17,653 Value ($000) $0 Avg Close $16.89 Range $15.09 - $18.16

Q1 2025

Shares 17,092 Value ($000) $0 Avg Close $18.59 Range $16.48 - $19.50

Q4 2024

Shares 15,032 Value ($000) $0 Avg Close $19.21 Range $17.47 - $21.05

Q3 2024

Shares 12,735 Value ($000) $0 Avg Close $17.68 Range $14.84 - $19.27

Q2 2024

Shares 12,406 Value ($000) $0 Avg Close $14.57 Range $13.26 - $16.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	39,493	$1	$19.03	$16.84 - $21.57
Q3 2025	18,560	$0	$18.34	$16.76 - $19.42
Q2 2025	17,653	$0	$16.89	$15.09 - $18.16
Q1 2025	17,092	$0	$18.59	$16.48 - $19.50
Q4 2024	15,032	$0	$19.21	$17.47 - $21.05
Q3 2024	12,735	$0	$17.68	$14.84 - $19.27
Q2 2024	12,406	$0	$14.57	$13.26 - $16.05