PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

BRIGHTON JONES LLC's Holding History (CIK: 0001360798)

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

Q2 2018

Shares 10,717 Value ($000) $128 Avg Close $11.94 Range $9.62 - $13.84

Q1 2018

Shares 10,717 Value ($000) $125 Avg Close $13.29 Range $11.07 - $16.76

Q4 2017

Shares 10,717 Value ($000) $168 Avg Close $16.06 Range $14.12 - $18.48

Q3 2017

Shares 10,717 Value ($000) $166 Avg Close $16.12 Range $14.11 - $20.10

Q2 2017

Shares 10,717 Value ($000) $176 Avg Close $18.56 Range $16.07 - $23.93

Q1 2017

Shares 10,717 Value ($000) $242 Avg Close $22.28 Range $21.03 - $23.40

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	10,717	$128	$11.94	$9.62 - $13.84
Q1 2018	10,717	$125	$13.29	$11.07 - $16.76
Q4 2017	10,717	$168	$16.06	$14.12 - $18.48
Q3 2017	10,717	$166	$16.12	$14.11 - $20.10
Q2 2017	10,717	$176	$18.56	$16.07 - $23.93
Q1 2017	10,717	$242	$22.28	$21.03 - $23.40