ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

CHATHAM CAPITAL GROUP, INC.'s Holding History (CIK: 0001108969)

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

Q4 2017
Shares 34,770 Value ($000) $2,235 Avg Close — Range —
Q3 2017
Shares 34,150 Value ($000) $1,833 Avg Close — Range —
Q2 2017
Shares 34,150 Value ($000) $1,849 Avg Close — Range —
Q1 2017
Shares 31,461 Value ($000) $1,527 Avg Close — Range —
Q4 2016
Shares 34,150 Value ($000) $1,508 Avg Close — Range —
Q3 2016
Shares 28,450 Value ($000) $1,032 Avg Close — Range —
Q2 2016
Shares 30,025 Value ($000) $1,109 Avg Close — Range —
Q1 2016
Shares 30,025 Value ($000) $1,109 Avg Close — Range —
Q4 2015
Shares 30,025 Value ($000) $1,350 Avg Close — Range —
Q3 2015
Shares 31,025 Value ($000) $1,145 Avg Close — Range —
Q2 2015
Shares 31,325 Value ($000) $1,230 Avg Close — Range —
Q1 2015
Shares 31,325 Value ($000) $1,202 Avg Close — Range —
Q4 2014
Shares 30,525 Value ($000) $1,013 Avg Close — Range —
Q3 2014
Shares 30,525 Value ($000) $820 Avg Close — Range —
Q2 2014
Shares 30,225 Value ($000) $1,075 Avg Close — Range —
Q1 2014
Shares 30,225 Value ($000) $1,166 Avg Close — Range —
Q4 2013
Shares 30,225 Value ($000) $1,055 Avg Close — Range —
Q3 2013
Shares 30,225 Value ($000) $997 Avg Close — Range —
Q2 2013
Shares 30,225 Value ($000) $808 Avg Close — Range —