ON ASSIGNMENT INC

CUSIP: 682159108 Class: COM

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q2 2016
Shares 10,000 Value ($000) $370 Avg Close — Range —
Q1 2016
Shares 12,800 Value ($000) $473 Avg Close — Range —
Q4 2015
Shares 12,600 Value ($000) $566 Avg Close — Range —
Q3 2014
Shares 54,782 Value ($000) $1,471 Avg Close — Range —
Q2 2014
Shares 194,124 Value ($000) $6,905 Avg Close — Range —
Q1 2014
Shares 209,394 Value ($000) $8,081 Avg Close — Range —
Q4 2013
Shares 210,814 Value ($000) $7,362 Avg Close — Range —
Q3 2013
Shares 294,474 Value ($000) $9,718 Avg Close — Range —
Q2 2013
Shares 386,074 Value ($000) $10,316 Avg Close — Range —