PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

ARGENT CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001120926)

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

Q1 2015

Shares 106,490 Value ($000) $1,908 Avg Close $17.39 Range $13.31 - $18.80

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	106,490	$1,908	$17.39	$13.31 - $18.80