Ring Energy, Inc.

CUSIP: 76680v108 Class: com

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

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

Q2 2018
Shares 78,200 Value ($000) $987 Avg Close — Range —
Q1 2018
Shares 46,200 Value ($000) $663 Avg Close — Range —
Q4 2017
Shares 75,600 Value ($000) $1,051 Avg Close — Range —
Q3 2017
Shares 66,150 Value ($000) $959 Avg Close — Range —
Q2 2017
Shares 105,300 Value ($000) $1,369 Avg Close — Range —
Q1 2017
Shares 96,800 Value ($000) $1,047 Avg Close — Range —
Q4 2016
Shares 76,800 Value ($000) $998 Avg Close — Range —
Q3 2016
Shares 76,800 Value ($000) $841 Avg Close — Range —
Q2 2016
Shares 73,300 Value ($000) $647 Avg Close — Range —
Q1 2016
Shares 58,100 Value ($000) $293 Avg Close — Range —
Q4 2015
Shares 54,700 Value ($000) $386 Avg Close — Range —
Q3 2015
Shares 50,400 Value ($000) $497 Avg Close — Range —
Q2 2015
Shares 53,800 Value ($000) $602 Avg Close — Range —
Q1 2015
Shares 54,700 Value ($000) $581 Avg Close — Range —
Q4 2014
Shares 90,400 Value ($000) $949 Avg Close — Range —
Q3 2014
Shares 88,000 Value ($000) $1,297 Avg Close — Range —
Q2 2014
Shares 113,900 Value ($000) $1,988 Avg Close — Range —
Q1 2014
Shares 129,000 Value ($000) $1,969 Avg Close — Range —
Q4 2013
Shares 90,000 Value ($000) $1,098 Avg Close — Range —