ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2017
Shares 12,717 Value ($000) $817 Avg Close — Range —
Q3 2017
Shares 12,571 Value ($000) $675 Avg Close — Range —
Q2 2017
Shares 11,983 Value ($000) $649 Avg Close — Range —
Q1 2017
Shares 11,327 Value ($000) $550 Avg Close — Range —
Q4 2016
Shares 10,642 Value ($000) $470 Avg Close — Range —
Q2 2016
Shares 9,392 Value ($000) $347 Avg Close — Range —
Q1 2016
Shares 8,511 Value ($000) $314 Avg Close — Range —
Q4 2015
Shares 7,659 Value ($000) $344 Avg Close — Range —
Q3 2015
Shares 6,980 Value ($000) $258 Avg Close — Range —
Q2 2015
Shares 6,431 Value ($000) $253 Avg Close — Range —
Q1 2015
Shares 6,158 Value ($000) $236 Avg Close — Range —
Q4 2014
Shares 178,676 Value ($000) $5,930 Avg Close — Range —
Q3 2014
Shares 261,633 Value ($000) $7,025 Avg Close — Range —
Q2 2014
Shares 261,388 Value ($000) $9,351 Avg Close — Range —
Q1 2014
Shares 261,186 Value ($000) $10,079 Avg Close — Range —
Q4 2013
Shares 267,665 Value ($000) $9,347 Avg Close — Range —
Q3 2013
Shares 118,076 Value ($000) $3,897 Avg Close — Range —
Q2 2013
Shares 6,127 Value ($000) $164 Avg Close — Range —