IMPINJ INC

Ticker: PI CUSIP: 453204109 Class: EQTY

THOMPSON DAVIS & CO., INC.'s Holding History (CIK: 0001017284)

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

Q1 2018

Shares 800 Value ($000) $10 Avg Close $16.68 Range $9.95 - $27.40

Q4 2016

Shares 500 Value ($000) $18 Avg Close $30.67 Range $23.55 - $41.91

Q3 2016

Shares 250 Value ($000) $9 Avg Close $26.22 Range $16.36 - $38.43

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	800	$10	$16.68	$9.95 - $27.40
Q4 2016	500	$18	$30.67	$23.55 - $41.91
Q3 2016	250	$9	$26.22	$16.36 - $38.43