PARKERVISION INC

CUSIP: 701354102 Class: CMN

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q1 2015
Shares 198 Value ($000) $0 Avg Close — Range —
Q4 2014
Shares 200 Value ($000) $0 Avg Close — Range —
Q3 2014
Shares 73,416 Value ($000) $83 Avg Close — Range —
Q2 2014
Shares 26,715 Value ($000) $40 Avg Close — Range —
Q1 2014
Shares 1,577 Value ($000) $8 Avg Close — Range —
Q4 2013
Shares 3,888 Value ($000) $18 Avg Close — Range —
Q2 2013
Shares 2,010 Value ($000) $9 Avg Close — Range —