ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2017
Shares 20,569 Value ($000) $1,322 Avg Close — Range —
Q3 2017
Shares 50,415 Value ($000) $2,706 Avg Close — Range —
Q2 2017
Shares 50,409 Value ($000) $2,730 Avg Close — Range —
Q1 2017
Shares 49,124 Value ($000) $2,384 Avg Close — Range —
Q4 2016
Shares 38,488 Value ($000) $1,700 Avg Close — Range —
Q3 2016
Shares 32,775 Value ($000) $1,189 Avg Close — Range —
Q2 2016
Shares 33,468 Value ($000) $1,237 Avg Close — Range —
Q1 2016
Shares 56,645 Value ($000) $2,091 Avg Close — Range —
Q4 2015
Shares 51,845 Value ($000) $2,330 Avg Close — Range —
Q3 2015
Shares 65,123 Value ($000) $2,403 Avg Close — Range —
Q2 2015
Shares 61,146 Value ($000) $2,402 Avg Close — Range —
Q1 2015
Shares 407,746 Value ($000) $15,645 Avg Close — Range —
Q4 2014
Shares 373,533 Value ($000) $12,397 Avg Close — Range —
Q3 2014
Shares 388,949 Value ($000) $10,443 Avg Close — Range —
Q2 2014
Shares 324,434 Value ($000) $11,539 Avg Close — Range —
Q1 2014
Shares 353,955 Value ($000) $13,659 Avg Close — Range —
Q4 2013
Shares 628,183 Value ($000) $21,936 Avg Close — Range —
Q3 2013
Shares 549,954 Value ($000) $18,148 Avg Close — Range —
Q2 2013
Shares 473,069 Value ($000) $12,640 Avg Close — Range —