PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q2 2019

Shares 15,400 Value ($000) $202 Avg Close $12.83 Range $11.77 - $14.00

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	15,400	$202	$12.83	$11.77 - $14.00