NORTHWEST PIPE CO

Ticker: NWPX CUSIP: 667746101 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 9,825 Value ($000) $614 Avg Close $57.66 Range $49.25 - $65.84

Q1 2016

Shares 2 Value ($000) $0 Avg Close $9.23 Range $7.46 - $11.33

Q4 2015

Shares 2 Value ($000) $0 Avg Close $12.62 Range $9.87 - $15.57

Q3 2015

Shares 2 Value ($000) $0 Avg Close $16.66 Range $12.48 - $20.84

Q2 2015

Shares 2,684 Value ($000) $55 Avg Close $22.28 Range $19.55 - $25.86

Q1 2015

Shares 5,438 Value ($000) $125 Avg Close $24.37 Range $20.50 - $30.28

Q4 2014

Shares 4,548 Value ($000) $137 Avg Close $32.30 Range $26.03 - $36.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,825	$614	$57.66	$49.25 - $65.84
Q1 2016	2	$0	$9.23	$7.46 - $11.33
Q4 2015	2	$0	$12.62	$9.87 - $15.57
Q3 2015	2	$0	$16.66	$12.48 - $20.84
Q2 2015	2,684	$55	$22.28	$19.55 - $25.86
Q1 2015	5,438	$125	$24.37	$20.50 - $30.28
Q4 2014	4,548	$137	$32.30	$26.03 - $36.07