NORTHWEST PIPE CO

Ticker: NWPX CUSIP: 667746101 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q1 2025

Shares 10,974 Value ($000) $453 Avg Close $46.45 Range $39.29 - $53.46

Q4 2024

Shares 5,772 Value ($000) $279 Avg Close $49.88 Range $42.77 - $57.76

Q3 2024

Shares 7,910 Value ($000) $357 Avg Close $39.88 Range $32.29 - $46.25

Q4 2022

Shares 6,030 Value ($000) $203 Avg Close $33.95 Range $29.00 - $37.62

Q2 2020

Shares 43,793 Value ($000) $1,098 Avg Close $23.80 Range $19.33 - $27.57

Q1 2020

Shares 83,906 Value ($000) $1,867 Avg Close $30.50 Range $18.52 - $36.70

Q4 2019

Shares 90,554 Value ($000) $3,016 Avg Close $31.55 Range $25.02 - $34.80

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	10,974	$453	$46.45	$39.29 - $53.46
Q4 2024	5,772	$279	$49.88	$42.77 - $57.76
Q3 2024	7,910	$357	$39.88	$32.29 - $46.25
Q4 2022	6,030	$203	$33.95	$29.00 - $37.62
Q2 2020	43,793	$1,098	$23.80	$19.33 - $27.57
Q1 2020	83,906	$1,867	$30.50	$18.52 - $36.70
Q4 2019	90,554	$3,016	$31.55	$25.02 - $34.80