PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q2 2016
Shares 175,910 Value ($000) $2,461 Avg Close $13.59 Range $12.09 - $15.25
Q1 2016
Shares 225,359 Value ($000) $3,015 Avg Close $10.95 Range $8.70 - $14.73
Q4 2015
Shares 316,084 Value ($000) $3,427 Avg Close $10.84 Range $9.68 - $11.76
Q3 2015
Shares 450,735 Value ($000) $4,507 Avg Close $12.57 Range $9.91 - $16.45
Q2 2015
Shares 454,490 Value ($000) $7,272 Avg Close $17.19 Range $14.76 - $19.52
Q1 2015
Shares 454,490 Value ($000) $8,145 Avg Close $17.39 Range $13.31 - $18.80
Q4 2014
Shares 463,747 Value ($000) $6,891 Avg Close $13.09 Range $11.62 - $15.24
Q3 2014
Shares 373,747 Value ($000) $4,713 Avg Close $19.84 Range $12.26 - $22.66
Q2 2014
Shares 119,856 Value ($000) $2,543 Avg Close $19.12 Range $16.60 - $21.77
Q1 2014
Shares 64,193 Value ($000) $1,166 Avg Close $22.07 Range $17.21 - $26.73