IMPERVA INC

CUSIP: 45321L100 Class: COM

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

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

Q4 2015
Shares 316,327 Value ($000) $20,026 Avg Close — Range —
Q3 2015
Shares 317,776 Value ($000) $20,808 Avg Close — Range —
Q2 2015
Shares 365,408 Value ($000) $24,738 Avg Close — Range —
Q1 2015
Shares 310,437 Value ($000) $13,255 Avg Close — Range —
Q1 2014
Shares 470,583 Value ($000) $26,211 Avg Close — Range —
Q4 2013
Shares 473,790 Value ($000) $22,803 Avg Close — Range —
Q3 2013
Shares 478,310 Value ($000) $20,098 Avg Close — Range —
Q2 2013
Shares 480,910 Value ($000) $21,660 Avg Close — Range —