ORION GROUP HOLDINGS INC

Ticker: ORN CUSIP: 68628V308 Class: Common Stock

IRIDIAN ASSET MANAGEMENT LLC/CT's Holding History (CIK: 0001033427)

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

Q3 2015
Shares 14,710 Value ($000) $88 Avg Close $6.98 Range $5.56 - $7.73
Q2 2015
Shares 14,710 Value ($000) $106 Avg Close $8.16 Range $7.04 - $9.60
Q1 2015
Shares 10,930 Value ($000) $97 Avg Close $9.60 Range $8.63 - $11.18
Q4 2014
Shares 10,930 Value ($000) $121 Avg Close $10.46 Range $8.65 - $12.10
Q3 2014
Shares 19,920 Value ($000) $199 Avg Close $10.50 Range $9.79 - $11.44
Q2 2014
Shares 19,920 Value ($000) $216 Avg Close $11.66 Range $10.60 - $13.50
Q1 2014
Shares 28,200 Value ($000) $354 Avg Close $11.41 Range $10.19 - $12.83
Q4 2013
Shares 36,750 Value ($000) $442 Avg Close $11.62 Range $10.35 - $13.77
Q3 2013
Shares 43,210 Value ($000) $450 Avg Close $11.04 Range $9.20 - $13.52
Q2 2013
Shares 37,880 Value ($000) $458 Avg Close $10.70 Range $8.41 - $12.77