CARDIOVASCULAR SYS INC DEL

CUSIP: 141619106 Class: Common Stock

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

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

Q1 2015
Shares 233,986 Value ($000) $9,135 Avg Close — Range —
Q4 2014
Shares 249,436 Value ($000) $7,503 Avg Close — Range —
Q3 2014
Shares 265,586 Value ($000) $6,276 Avg Close — Range —
Q2 2014
Shares 290,186 Value ($000) $9,042 Avg Close — Range —
Q1 2014
Shares 307,531 Value ($000) $9,776 Avg Close — Range —