NBT BANCORP INC

Ticker: NBTB CUSIP: 628778102 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 44,945 Value ($000) $1,866 Avg Close $41.57 Range $39.20 - $44.67

Q3 2025

Shares 56,086 Value ($000) $2,342 Avg Close $42.90 Range $40.08 - $45.28

Q2 2025

Shares 86,917 Value ($000) $3,611 Avg Close $41.63 Range $37.31 - $45.56

Q3 2024

Shares 21,107 Value ($000) $934 Avg Close $45.13 Range $37.34 - $50.84

Q1 2023

Shares 13,016 Value ($000) $0 Avg Close $39.21 Range $33.00 - $45.02

Q3 2021

Shares 19,200 Value ($000) $694 Avg Close $35.10 Range $32.66 - $37.65

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	44,945	$1,866	$41.57	$39.20 - $44.67
Q3 2025	56,086	$2,342	$42.90	$40.08 - $45.28
Q2 2025	86,917	$3,611	$41.63	$37.31 - $45.56
Q3 2024	21,107	$934	$45.13	$37.34 - $50.84
Q1 2023	13,016	$0	$39.21	$33.00 - $45.02
Q3 2021	19,200	$694	$35.10	$32.66 - $37.65