OM GROUP INC

CUSIP: 670872100 Class: COM

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q2 2015
Shares 11,744 Value ($000) $395 Avg Close — Range —
Q1 2015
Shares 11,406 Value ($000) $343 Avg Close — Range —
Q4 2014
Shares 8,718 Value ($000) $260 Avg Close — Range —
Q3 2014
Shares 15,212 Value ($000) $395 Avg Close — Range —
Q2 2014
Shares 11,812 Value ($000) $383 Avg Close — Range —
Q1 2014
Shares 11,412 Value ($000) $379 Avg Close — Range —