PARKERVISION INC

Ticker: PRKR CUSIP: 701354300 Class: USD

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q1 2018

Shares 220 Value ($000) $0 Avg Close $0.94 Range $0.76 - $1.25

Q4 2017

Shares 598 Value ($000) $0 Avg Close $1.34 Range $1.02 - $1.73

Q3 2017

Shares 456 Value ($000) $0 Avg Close $1.82 Range $1.57 - $2.24

Q1 2017

Shares 946 Value ($000) $1 Avg Close $2.12 Range $1.60 - $3.80

Q4 2016

Shares 2,610 Value ($000) $4 Avg Close $3.11 Range $1.84 - $4.55

Q1 2016

Shares 10 Value ($000) $0 Avg Close $2.56 Range $1.70 - $4.00

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	220	$0	$0.94	$0.76 - $1.25
Q4 2017	598	$0	$1.34	$1.02 - $1.73
Q3 2017	456	$0	$1.82	$1.57 - $2.24
Q1 2017	946	$1	$2.12	$1.60 - $3.80
Q4 2016	2,610	$4	$3.11	$1.84 - $4.55
Q1 2016	10	$0	$2.56	$1.70 - $4.00