ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q4 2017
Shares 670 Value ($000) $43 Avg Close — Range —
Q3 2017
Shares 370 Value ($000) $20 Avg Close — Range —
Q2 2017
Shares 670 Value ($000) $36 Avg Close — Range —
Q1 2017
Shares 370 Value ($000) $18 Avg Close — Range —
Q4 2016
Shares 700 Value ($000) $31 Avg Close — Range —
Q3 2016
Shares 700 Value ($000) $25 Avg Close — Range —
Q2 2016
Shares 700 Value ($000) $26 Avg Close — Range —
Q1 2016
Shares 700 Value ($000) $26 Avg Close — Range —