ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q1 2018
Shares 76,204 Value ($000) $6,240 Avg Close — Range —
Q4 2017
Shares 79,714 Value ($000) $5,123 Avg Close — Range —
Q3 2017
Shares 81,360 Value ($000) $4,367 Avg Close — Range —
Q2 2017
Shares 90,024 Value ($000) $4,875 Avg Close — Range —
Q1 2017
Shares 100,186 Value ($000) $4,862 Avg Close — Range —
Q4 2016
Shares 104,886 Value ($000) $4,632 Avg Close — Range —
Q3 2016
Shares 107,786 Value ($000) $3,912 Avg Close — Range —
Q2 2016
Shares 106,886 Value ($000) $3,949 Avg Close — Range —
Q1 2016
Shares 109,878 Value ($000) $4,057 Avg Close — Range —
Q4 2015
Shares 95,810 Value ($000) $4,307 Avg Close — Range —
Q3 2015
Shares 94,371 Value ($000) $3,482 Avg Close — Range —
Q2 2015
Shares 94,471 Value ($000) $3,711 Avg Close — Range —
Q1 2015
Shares 94,257 Value ($000) $3,617 Avg Close — Range —
Q4 2014
Shares 101,257 Value ($000) $3,361 Avg Close — Range —
Q3 2014
Shares 100,328 Value ($000) $2,694 Avg Close — Range —
Q2 2014
Shares 99,159 Value ($000) $3,527 Avg Close — Range —
Q1 2014
Shares 83,159 Value ($000) $3,209 Avg Close — Range —
Q4 2013
Shares 82,759 Value ($000) $2,890 Avg Close — Range —
Q3 2013
Shares 82,259 Value ($000) $2,715 Avg Close — Range —
Q2 2013
Shares 79,690 Value ($000) $2,129 Avg Close — Range —
Q1 2013
Shares 74,630 Value ($000) $1,889 Avg Close — Range —