ORION GROUP HOLDINGS INC

Ticker: ORN CUSIP: 68628V308 Class: Common Stock

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

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

Q1 2017

Shares 2,300 Value ($000) $17 Avg Close $9.45 Range $7.01 - $11.11

Q3 2016

Shares 12,600 Value ($000) $86 Avg Close $5.97 Range $5.15 - $6.90

Q2 2016

Shares 9,300 Value ($000) $49 Avg Close $5.23 Range $4.57 - $5.99

Q1 2016

Shares 2,200 Value ($000) $11 Avg Close $3.93 Range $3.25 - $5.39

Q3 2015

Shares 17,600 Value ($000) $105 Avg Close $6.98 Range $5.56 - $7.73

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	2,300	$17	$9.45	$7.01 - $11.11
Q3 2016	12,600	$86	$5.97	$5.15 - $6.90
Q2 2016	9,300	$49	$5.23	$4.57 - $5.99
Q1 2016	2,200	$11	$3.93	$3.25 - $5.39
Q3 2015	17,600	$105	$6.98	$5.56 - $7.73