CUSIP
No. 447011107
|
Page 2
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Limited Partnership
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
PN,
HC
|
CUSIP
No. 447011107
|
Page 3
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Investment Group, L.L.C.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
OO,
HC
|
CUSIP
No. 447011107
|
Page 4
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Equity Fund Ltd.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
WC
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Cayman
Islands
|
||
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE
VOTING POWER
0
|
|
8
|
SHARED
VOTING POWER
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
CO
|
CUSIP
No. 447011107
|
Page 5
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Investment Group II, L.L.C.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
OO,
HC
|
CUSIP
No. 447011107
|
Page 6
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Holdings I LP
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
PN,
HC
|
CUSIP
No. 447011107
|
Page 7
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Derivatives Group LLC
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
WC
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
OO,
BD
|
CUSIP
No. 447011107
|
Page 8
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Holdings II LP
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
PN,
HC
|
CUSIP
No. 447011107
|
Page 9
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Advisors LLC
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
OO,
HC
|
CUSIP
No. 447011107
|
Page 10
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Citadel
Derivatives Trading Ltd.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
WC
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Cayman
Islands
|
||
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE
VOTING POWER
0
|
|
8
|
SHARED
VOTING POWER
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
CO
|
CUSIP
No. 447011107
|
Page 11
of 16
Pages
|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
Kenneth
Griffin
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)S
(b)S*
|
||
3
|
SEC
USE ONLY
|
||
4
|
SOURCE
OF FUNDS
AF
|
||
5
|
CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
2(d)
OR 2(e)
£
|
||
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
18,655,510
shares
|
||
9
|
SOLE
DISPOSITIVE POWER
0
|
||
10
|
SHARED
DISPOSITIVE POWER
See
Row 8 above.
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
£
See
Row 8 above.
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
£
|
||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.95
percent†
|
||
14
|
TYPE
OF REPORTING PERSON
IN,
HC
|
CUSIP
No. 447011107
|
Page 12
of 16
Pages
|
CUSIP
No. 447011107
|
Page 13
of 16
Pages
|
(a)
|
Number
of shares: 18,655,510 shares2
|
Percentage
of shares: 7.95 %
|
|
(b)
|
Sole
power to vote or direct the vote: 0
|
Shared
power to vote or direct the vote: 18,655,510 shares
|
|
Sole
power to dispose or to direct the disposition: 0
|
|
Shared
power to dispose or direct the disposition: 18,655,510 shares
|
CUSIP
No. 447011107
|
Page 14
of 16
Pages
|
Exhibit
99.4:
|
Proposal
Letter,
dated August 28, 2008, from Citadel Limited Partnership, D. E. Shaw
Valence Portfolios, L.L.C., D. E. Shaw Oculus Portfolios, L.L.C.,
MatlinPatterson Global Opportunities Partners L.P., MatlinPatterson
Global
Opportunities Partners (Bermuda) L.P., Pentwater Growth Fund Ltd.
to
Hexion Specialty Chemicals, Inc. and Apollo Global Management,
LLC
|
Exhibit
99.5:
|
Draft
Commitment Letter (and related term sheet),
dated August 28, 2008, from Citadel Limited Partnership, D. E. Shaw
Valence Portfolios, L.L.C., D. E. Shaw Oculus Portfolios, L.L.C.,
MatlinPatterson Global Opportunities Partners L.P., MatlinPatterson
Global
Opportunities Partners (Bermuda) L.P. and Pentwater Growth Fund
Ltd.
|
Exhibit
99.6:
|
Transaction
Listing Required by Item 5(c)
|
CUSIP
No. 447011107
|
Page 15
of 16
Pages
|
CITADEL
INVESTMENT GROUP, L.L.C.
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
LIMITED PARTNERSHIP
By:
Citadel
Investment Group, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
EQUITY FUND LTD.
By:
Citadel
Limited Partnership,
its
Portfolio Manager
By:
Citadel
Investment Group, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
INVESTMENT GROUP II, L.L.C.
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
HOLDINGS I LP
By:
Citadel
Investment Group II, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
DERIVATIVES GROUP LLC
By:
Citadel
Limited Partnership,
its
Managing Member
By:
Citadel
Investment Group, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
HOLDINGS II LP
By:
Citadel
Investment Group II, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CITADEL
ADVISORS LLC
By:
Citadel
Holdings II LP,
its
Managing Member
By:
Citadel
Investment Group II, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
CUSIP
No. 447011107
|
Page 16
of 16
Pages
|
CITADEL
DERIVATIVES TRADING LTD.
By:
Citadel
Limited Partnership,
its
Portfolio Manager
By:
Citadel
Investment Group, L.L.C.,
its
General Partner
By:
/s/
John C.
Nagel
John
C. Nagel, Authorized Signatory
|
KENNETH
GRIFFIN
By:
/s/
John C.
Nagel
John
C. Nagel, attorney-in-fact*
|