CORE LABORATORIES N V

CUSIP: N22717107 Class: COM

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

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

Q2 2016
Shares 2,770 Value ($000) $343 Avg Close — Range —
Q1 2016
Shares 3,170 Value ($000) $356 Avg Close — Range —
Q4 2015
Shares 4,170 Value ($000) $453 Avg Close — Range —
Q3 2015
Shares 5,200 Value ($000) $519 Avg Close — Range —