ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

Laurion Capital Management LP's Holding History (CIK: 0001390202)

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

Q1 2018
Shares 12,067 Value ($000) $988 Avg Close — Range —
Q4 2017
Shares 22,956 Value ($000) $1,475 Avg Close — Range —
Q3 2017
Shares 30,856 Value ($000) $1,656 Avg Close — Range —
Q2 2017
Shares 28,915 Value ($000) $1,565 Avg Close — Range —
Q4 2015
Shares 7,200 Value ($000) $324 Avg Close — Range —
Q3 2015
Shares 6,100 Value ($000) $225 Avg Close — Range —