ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2018
Shares 87,200 Value ($000) $7,140 Avg Close — Range —
Q4 2017
Shares 84,600 Value ($000) $5,437 Avg Close — Range —
Q3 2017
Shares 83,200 Value ($000) $4,466 Avg Close — Range —
Q2 2017
Shares 83,200 Value ($000) $4,505 Avg Close — Range —
Q1 2017
Shares 83,200 Value ($000) $4,038 Avg Close — Range —
Q4 2016
Shares 82,400 Value ($000) $3,639 Avg Close — Range —
Q3 2016
Shares 82,400 Value ($000) $2,990 Avg Close — Range —
Q2 2016
Shares 80,700 Value ($000) $2,982 Avg Close — Range —
Q1 2016
Shares 76,600 Value ($000) $2,728 Avg Close — Range —
Q4 2015
Shares 61,100 Value ($000) $2,746 Avg Close — Range —
Q3 2015
Shares 60,200 Value ($000) $2,221 Avg Close — Range —
Q2 2015
Shares 52,900 Value ($000) $2,078 Avg Close — Range —
Q1 2015
Shares 51,900 Value ($000) $1,991 Avg Close — Range —
Q4 2014
Shares 53,000 Value ($000) $1,759 Avg Close — Range —
Q3 2014
Shares 51,600 Value ($000) $1,385 Avg Close — Range —
Q2 2014
Shares 52,400 Value ($000) $1,864 Avg Close — Range —
Q1 2014
Shares 50,300 Value ($000) $1,941 Avg Close — Range —
Q4 2013
Shares 38,400 Value ($000) $1,341 Avg Close — Range —
Q3 2013
Shares 38,400 Value ($000) $1,267 Avg Close — Range —
Q2 2013
Shares 40,100 Value ($000) $1,071 Avg Close — Range —