PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

Aigen Investment Management, LP's Holding History (CIK: 0001741224)

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

Q4 2019

Shares 4 Value ($000) $0 Avg Close $15.34 Range $12.53 - $17.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	4	$0	$15.34	$12.53 - $17.42