CUSIP No. 457733103
|
Page 2 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
WARBURG PINCUS PRIVATE EQUITY IX, L.P. IRS Number 20-2975990
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
WC
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
PN
|
CUSIP No. 457733103
|
Page 3 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
WARBURG PINCUS IX LLC IRS Number 20-2528842
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
AF
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
New York
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
OO
|
CUSIP No. 457733103
|
Page 4 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
WARBURG PINCUS PARTNERS, LLC IRS Number 13-4069737
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
AF
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
New York
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
OO
|
CUSIP No. 457733103
|
Page 5 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
WARBURG PINCUS & CO. IRS Number 13-6358475
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
AF
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
New York
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
PN
|
CUSIP No. 457733103
|
Page 6 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
WARBURG PINCUS LLC IRS Number 13-3536050
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
AF
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
New York
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
OO
|
CUSIP No. 457733103
|
Page 7 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
CHARLES R. KAYE
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
AF
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES OF AMERICA
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
IN
|
CUSIP No. 457733103
|
Page 8 of 12 Pages
|
||||
1
|
NAME OF REPORTING PERSON
JOSEPH P. LANDY
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o
(b) x
|
||||
3
|
SEC USE ONLY
|
||||
4
|
SOURCE OF FUNDS
AF
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) o
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES OF AMERICA
|
||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
|
7
|
SOLE VOTING POWER
-0-
|
|||
8
|
SHARED VOTING POWER
-0-
|
||||
9
|
SOLE DISPOSITIVE POWER
-0-
|
||||
10
|
SHARED DISPOSITIVE POWER
-0-
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-0-
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES (SEE INSTRUCTIONS) o
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0%
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
IN
|
Item 4.
|
Purpose of the Transaction.
|
Item 5.
|
Interest in Securities of the Issuer.
|
Dated: May 16, 2011
|