INTERNATIONAL RECTIFIER CORP

CUSIP: 460254105 Class: COMMON STOCK

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2014
Shares 831,300 Value ($000) $33,169 Avg Close — Range —
Q3 2014
Shares 662,000 Value ($000) $25,977 Avg Close — Range —
Q2 2014
Shares 12,000 Value ($000) $335 Avg Close — Range —
Q1 2014
Shares 12,000 Value ($000) $329 Avg Close — Range —
Q4 2013
Shares 12,000 Value ($000) $313 Avg Close — Range —