PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

Stanley-Laman Group, Ltd.'s Holding History (CIK: 0001601489)

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

Q2 2015

Shares 25,948 Value ($000) $415 Avg Close $17.19 Range $14.76 - $19.52

Q1 2015

Shares 25,508 Value ($000) $457 Avg Close $17.39 Range $13.31 - $18.80

Q4 2014

Shares 23,835 Value ($000) $354 Avg Close $13.09 Range $11.62 - $15.24

Q3 2014

Shares 28,961 Value ($000) $365 Avg Close $19.84 Range $12.26 - $22.66

Q2 2014

Shares 35,237 Value ($000) $748 Avg Close $19.12 Range $16.60 - $21.77

Q1 2014

Shares 36,443 Value ($000) $662 Avg Close $22.07 Range $17.21 - $26.73

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	25,948	$415	$17.19	$14.76 - $19.52
Q1 2015	25,508	$457	$17.39	$13.31 - $18.80
Q4 2014	23,835	$354	$13.09	$11.62 - $15.24
Q3 2014	28,961	$365	$19.84	$12.26 - $22.66
Q2 2014	35,237	$748	$19.12	$16.60 - $21.77
Q1 2014	36,443	$662	$22.07	$17.21 - $26.73