BONANZA CREEK ENERGY INC

CUSIP: 097793103 Class: COMMON STOCK

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

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

Q4 2015
Shares 633,357 Value ($000) $3,338 Avg Close — Range —
Q3 2015
Shares 662,737 Value ($000) $2,697 Avg Close — Range —
Q2 2015
Shares 329,797 Value ($000) $6,019 Avg Close — Range —
Q1 2015
Shares 181,477 Value ($000) $4,475 Avg Close — Range —
Q4 2014
Shares 321,207 Value ($000) $7,709 Avg Close — Range —
Q3 2014
Shares 168,984 Value ($000) $9,615 Avg Close — Range —
Q2 2014
Shares 183,974 Value ($000) $10,521 Avg Close — Range —
Q1 2014
Shares 196,074 Value ($000) $8,706 Avg Close — Range —
Q4 2013
Shares 219,774 Value ($000) $9,554 Avg Close — Range —
Q3 2013
Shares 211,619 Value ($000) $10,213 Avg Close — Range —
Q2 2013
Shares 143,099 Value ($000) $5,074 Avg Close — Range —