PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

BAMCO INC /NY/'s Holding History (CIK: 0001017918)

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

Q4 2017

Shares 160,500 Value ($000) $2,520 Avg Close $16.06 Range $14.12 - $18.48

Q3 2017

Shares 165,500 Value ($000) $2,564 Avg Close $16.12 Range $14.11 - $20.10

Q3 2014

Shares 62,500 Value ($000) $788 Avg Close $19.84 Range $12.26 - $22.66

Q2 2014

Shares 29,840 Value ($000) $633 Avg Close $19.12 Range $16.60 - $21.77

Q1 2014

Shares 35,440 Value ($000) $644 Avg Close $22.07 Range $17.21 - $26.73

Q4 2013

Shares 9,280 Value ($000) $238 Avg Close $22.99 Range $20.12 - $25.90

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	160,500	$2,520	$16.06	$14.12 - $18.48
Q3 2017	165,500	$2,564	$16.12	$14.11 - $20.10
Q3 2014	62,500	$788	$19.84	$12.26 - $22.66
Q2 2014	29,840	$633	$19.12	$16.60 - $21.77
Q1 2014	35,440	$644	$22.07	$17.21 - $26.73
Q4 2013	9,280	$238	$22.99	$20.12 - $25.90