IMPINJ INC

Ticker: PI CUSIP: 453204109 Class: EQTY

Granahan Investment Management, LLC's Holding History (CIK: 0001026710)

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

Q4 2017

Shares 227,223 Value ($000) $5,119 Avg Close $28.69 Range $19.97 - $41.97

Q3 2017

Shares 292,894 Value ($000) $12,187 Avg Close $42.09 Range $29.82 - $55.90

Q2 2017

Shares 292,992 Value ($000) $14,254 Avg Close $42.00 Range $28.00 - $60.85

Q1 2017

Shares 430,953 Value ($000) $13,045 Avg Close $31.46 Range $26.69 - $37.42

Q4 2016

Shares 1,058,658 Value ($000) $37,413 Avg Close $30.67 Range $23.55 - $41.91

Q3 2016

Shares 151,150 Value ($000) $5,656 Avg Close $26.22 Range $16.36 - $38.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	227,223	$5,119	$28.69	$19.97 - $41.97
Q3 2017	292,894	$12,187	$42.09	$29.82 - $55.90
Q2 2017	292,992	$14,254	$42.00	$28.00 - $60.85
Q1 2017	430,953	$13,045	$31.46	$26.69 - $37.42
Q4 2016	1,058,658	$37,413	$30.67	$23.55 - $41.91
Q3 2016	151,150	$5,656	$26.22	$16.36 - $38.43