NORTHWEST PIPE CO

Ticker: NWPX CUSIP: 667746101 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q4 2016

Shares 1,900 Value ($000) $33 Avg Close $15.40 Range $11.80 - $18.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	1,900	$33	$15.40	$11.80 - $18.92