NORTHWEST PIPE CO

Ticker: NWPX CUSIP: 667746101 Class: Common Stock

PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO's Holding History (CIK: 0000315297)

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

Q4 2014

Shares 1,480 Value ($000) $45 Avg Close $32.30 Range $26.03 - $36.07

Q3 2014

Shares 1,480 Value ($000) $50 Avg Close $36.77 Range $32.90 - $41.43

Q2 2014

Shares 1,480 Value ($000) $60 Avg Close $36.33 Range $33.15 - $40.54

Q1 2014

Shares 1,480 Value ($000) $54 Avg Close $35.69 Range $32.43 - $38.48

Q4 2013

Shares 1,480 Value ($000) $56 Avg Close $36.44 Range $31.51 - $39.62

Q3 2013

Shares 1,480 Value ($000) $49 Avg Close $29.80 Range $27.51 - $33.00

Q2 2013

Shares 1,480 Value ($000) $41 Avg Close $27.10 Range $24.70 - $28.52

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	1,480	$45	$32.30	$26.03 - $36.07
Q3 2014	1,480	$50	$36.77	$32.90 - $41.43
Q2 2014	1,480	$60	$36.33	$33.15 - $40.54
Q1 2014	1,480	$54	$35.69	$32.43 - $38.48
Q4 2013	1,480	$56	$36.44	$31.51 - $39.62
Q3 2013	1,480	$49	$29.80	$27.51 - $33.00
Q2 2013	1,480	$41	$27.10	$24.70 - $28.52