OMB
APPROVAL
OMB
Number: 3235-0145
Expires:
December 31, 2005
Estimated
average burden
hours
per response……….11
|
CUSIP
No. 46612H402
|
13D
|
Page 2 of 12
Pages
|
1
|
NAMES
OF REPORTING PERSONS
Mason
Capital Management LLC, in its capacity as investment manager for certain
investment funds and managed accounts.
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
Instructions)
|
||||
(a)
|
o | ||||
(b)
|
x | ||||
3
|
SEC
USE ONLY
|
||||
4
|
SOURCE
OF FUNDS (See Instructions)
|
||||
AF
|
|||||
5
|
CHECK
BOX 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
|
|||
4,165,707
|
|||||
8
|
SHARED
VOTING POWER
|
||||
0
|
|||||
9
|
SOLE
DISPOSITIVE POWER
|
||||
4,165,707
|
|||||
10
|
SHARED
DISPOSITIVE POWER
|
||||
0
|
|||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
||||
4,165,707
|
|||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See
Instructions)
|
o | |||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
||||
6.5%
|
|||||
14
|
TYPE
OF REPORTING PERSON (See Instructions)
|
||||
OO
|
CUSIP
No. 46612H402
|
13D
|
Page 3 of 12
Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
||||
Kenneth
M. Garschina
|
|||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
Instructions)
|
||||
(a)
|
o | ||||
(b)
|
x | ||||
3
|
SEC
USE ONLY
|
||||
4
|
SOURCE
OF FUNDS (See Instructions)
|
||||
OO
|
|||||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D)
OR 2(E)
|
o | |||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
||||
United
States
|
|||||
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE
VOTING POWER
|
|||
0
|
|||||
8
|
SHARED
VOTING POWER
|
||||
4,165,707
|
|||||
9
|
SOLE
DISPOSITIVE POWER
|
||||
0
|
|||||
10
|
SHARED
DISPOSITIVE POWER
|
||||
4,165,707
|
|||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
||||
4,165,707
|
|||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See
Instructions)
|
o | |||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
||||
6.5%
|
|||||
14
|
TYPE
OF REPORTING PERSON (See Instructions)
|
||||
IN
|
CUSIP
No. 46612H402
|
13D
|
Page 4 of 12
Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
||||
Michael
E. Martino
|
|||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
Instructions)
|
||||
(a)
|
o | ||||
(b)
|
x | ||||
3
|
SEC
USE ONLY
|
||||
4
|
SOURCE
OF FUNDS (See Instructions)
|
||||
OO
|
|||||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D)
OR 2(E)
|
o | |||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
||||
United
States
|
|||||
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE
VOTING POWER
|
|||
0
|
|||||
8
|
SHARED
VOTING POWER
|
||||
4,165,707
|
|||||
9
|
SOLE
DISPOSITIVE POWER
|
||||
0
|
|||||
10
|
SHARED
DISPOSITIVE POWER
|
||||
4,165,707
|
|||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
||||
4,165,707
|
|||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See
Instructions)
|
o | |||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
||||
6.5%
|
|||||
14
|
TYPE
OF REPORTING PERSON (See Instructions)
|
||||
IN
|
CUSIP
No. 46612H402
|
13D
|
Page 5 of 12
Pages
|
|
Item
1.
|
Security
and Issuer.
|
|
Item
2.
|
Identity
and Background.
|
CUSIP
No. 46612H402
|
13D
|
Page 6
of 12 Pages
|
|
Item
3.
|
Source
and Amount of Funds or Other
Consideration.
|
|
Item
4.
|
Purpose
of Transaction.
|
CUSIP
No. 46612H402
|
13D
|
Page 7
of 12 Pages
|
|
Item
5.
|
Interest
in Securities of the Issuer.
|
CUSIP
No. 46612H402
|
13D
|
Page 8
of 12 Pages
|
CUSIP
No. 46612H402
|
13D
|
Page 9
of 12 Pages
|
|
Item
6.
|
Contracts,
Arrangements, Understandings or Relationships with Respect to Securities
of the Issues
|
|
Item
7.
|
Material
to be Filed as Exhibits
|
Exhibit
A
|
Schedule
13D Joint Filing Agreement, dated as of January 18,
2011.
|
Exhibit
B
|
Information
with Respect to Transactions Effected During the Past Sixty
Days
|
MASON
CAPITAL MANAGEMENT LLC
|
||
By:
|
/s/ John Grizzetti
|
|
Name:
|
John
Grizzetti
|
|
Title:
|
Chief
Financial Officer
|
|
/s/ Kenneth M. Garschina
|
||
Kenneth
M. Garschina
|
||
/s/ Michael E. Martino
|
||
Michael
E. Martino
|
MASON
CAPITAL MANAGEMENT LLC
|
||
By:
|
/s/ John Grizzetti
|
|
Name:
|
John
Grizzetti
|
|
Title:
|
Chief
Financial Officer
|
|
/s/ Kenneth M. Garschina
|
||
Kenneth
M. Garschina
|
||
/s/ Michael E. Martino
|
||
Michael
E. Martino
|
Trade
Date
|
Transaction
|
Total
Quantity
|
Unit
Price
|
||||||
12/01/2010
|
Buy
|
250,000 | $ | 43.77 | |||||
12/02/2010
|
Buy
|
3,795 | $ | 43.77 | |||||
12/03/2010
|
Buy
|
4,765 | $ | 43.77 | |||||
12/07/2010
|
Buy
|
28,500 | $ | 43.77 | |||||
12/08/2010
|
Buy
|
254,284 | $ | 43.77 | |||||
12/08/2010
|
Buy
|
2,716 | $ | 43.77 | |||||
12/08/2010
|
Buy
|
300,000 | $ | 43.77 | |||||
12/09/2010
|
Buy
|
50,000 | $ | 43.77 | |||||
12/10/2010
|
Buy
|
50,000 | $ | 43.77 | |||||
12/13/2010
|
Buy
|
200,000 | $ | 43.77 | |||||
12/13/2010
|
Buy
|
3,982 | $ | 43.77 | |||||
12/13/2010
|
Buy
|
251,018 | $ | 43.77 | |||||
12/14/2010
|
Buy
|
32,006 | $ | 43.77 | |||||
12/14/2010
|
Buy
|
200,000 | $ | 43.77 | |||||
12/14/2010
|
Buy
|
257,000 | $ | 43.76 | |||||
12/15/2010
|
Buy
|
281,800 | $ | 43.77 | |||||
12/15/2010
|
Buy
|
250,000 | $ | 43.77 | |||||
12/15/2010
|
Buy
|
841 | $ | 43.77 | |||||
12/15/2010
|
Buy
|
25,000 | $ | 43.77 | |||||
12/16/2010
|
Buy
|
180,000 | $ | 43.78 | |||||
12/16/2010
|
Buy
|
150,000 | $ | 43.77 | |||||
01/03/2011
|
Buy
|
15,414 | $ | 43.17 | |||||
01/03/2011
|
Sell
|
15,414 | $ | 43.11 | |||||
01/05/2011
|
Buy
|
477,300 | $ | 44.72 | |||||
01/05/2011
|
Buy
|
112,700 | $ | 44.52 | |||||
01/05/2011
|
Buy
|
100,000 | $ | 44.76 | |||||
01/07/2011
|
Buy
|
350,000 | $ | 44.25 | |||||
01/07/2011
|
Buy
|
40,300 | $ | 44.17 | |||||
01/07/2011
|
Buy
|
22,951 | $ | 44.23 | |||||
01/07/2011
|
Buy
|
286,749 | $ | 44.22 |