ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q3 2016
Shares 15,928 Value ($000) $578 Avg Close — Range —
Q2 2016
Shares 129,710 Value ($000) $4,793 Avg Close — Range —
Q1 2016
Shares 513,559 Value ($000) $18,961 Avg Close — Range —
Q4 2015
Shares 519,040 Value ($000) $23,331 Avg Close — Range —