PROOFPOINT INC

CUSIP: 743424103 Class: COM

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q4 2015
Shares 318,863 Value ($000) $20,729 Avg Close — Range —
Q3 2015
Shares 406,302 Value ($000) $24,508 Avg Close — Range —
Q2 2015
Shares 483,265 Value ($000) $30,770 Avg Close — Range —
Q1 2015
Shares 454,086 Value ($000) $26,891 Avg Close — Range —
Q4 2014
Shares 537,485 Value ($000) $25,923 Avg Close — Range —
Q3 2014
Shares 495,131 Value ($000) $18,389 Avg Close — Range —
Q2 2014
Shares 5,404 Value ($000) $202 Avg Close — Range —