|
o
|
Rule
13d-1(b)
|
|
|
x
|
Rule
13d-1(c)
|
|
|
o
|
Rule
13d-1(d)
|
|
CUSIP
No. 629377508
|
|||||||
|
1.
|
Names
of Reporting Persons
I.R.S.
Identification Nos. of above persons (entities only)
D.
E. Shaw Valence Portfolios, L.L.C.
13-4046559
|
||||||
|
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
|
||||||
|
(a)
|
o
|
||||||
|
(b)
|
o
|
||||||
|
3.
|
SEC
Use Only
|
||||||
|
4.
|
Citizenship
or Place of Organization
Delaware
|
||||||
|
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
With
|
5.
|
Sole
Voting Power
-0-
|
||||
|
6.
|
Shared
Voting Power
6,009,200
(1)
|
|||||
|
7.
|
Sole
Dispositive Power
-0-
|
|||||
|
8.
|
Shared
Dispositive Power
6,009,200
(1)
|
|||||
|
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
6,009,200
(1)
|
|||||
|
10.
|
Check
if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions) o
|
|||||
|
11.
|
Percent
of Class Represented by Amount in Row (9)
2.5%
(2)
|
|||||
|
12.
|
Type
of Reporting Person (See Instructions)
OO
|
|||||
|
CUSIP
No. 629377508
|
||||||
|
1.
|
Names
of Reporting Persons
I.R.S.
Identification Nos. of above persons (entities only)
D.
E. Shaw & Co., L.P.
13-3695715
|
|||||
|
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
|
|||||
|
(a)
|
o
|
|||||
|
(b)
|
o
|
|||||
|
3.
|
SEC
Use Only
|
|||||
|
4.
|
Citizenship
or Place of Organization
Delaware
|
|||||
|
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
With
|
5.
|
Sole
Voting Power
-0-
|
||||
|
6.
|
Shared
Voting Power
6,078,937
(1)
|
|||||
|
7.
|
Sole
Dispositive Power
-0-
|
|||||
|
8.
|
Shared
Dispositive Power
6,078,937
(1)
|
|||||
|
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
6,078,937
(1)
|
|||||
|
10.
|
Check
if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions) o
|
|||||
|
11.
|
Percent
of Class Represented by Amount in Row (9)
2.5%
(2)
|
|||||
|
12.
|
Type
of Reporting Person (See Instructions)
IA,
PN
|
|||||
|
CUSIP
No. 629377508
|
||||||
|
1.
|
Names
of Reporting Persons
I.R.S.
Identification Nos. of above persons (entities only)
David
E. Shaw
|
|||||
|
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
|
|||||
|
(a)
|
o
|
|
||||
|
(b)
|
o
|
|||||
|
3.
|
SEC
Use Only
|
|||||
|
4.
|
Citizenship
or Place of Organization
United
States
|
|||||
|
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
With
|
5.
|
Sole
Voting Power
-0-
|
||||
|
6.
|
Shared
Voting Power
6,078,937
(1)
|
|||||
|
7.
|
Sole
Dispositive Power
-0-
|
|||||
|
8.
|
Shared
Dispositive Power
6,078,937
(1)
|
|||||
|
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
6,078,937
(1)
|
|||||
|
10.
|
Check
if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions) o
|
|||||
|
11.
|
Percent
of Class Represented by Amount in Row (9)
2.5%
(2)
|
|||||
|
12.
|
Type
of Reporting Person (See Instructions)
IN
|
|||||
|
Item
1.
|
||
|
(a)
|
Name
of Issuer:
|
|
|
NRG
Energy,
Inc.
|
||
|
(b)
|
Address
of Issuer's Principal Executive Offices:
|
|
|
211
Carnegie Center
Princeton, NJ 08540 |
||
|
Item
2.
|
||
|
(a)
|
Name
of Person Filing:
|
|
|
D.
E. Shaw Valence Portfolios, L.L.C.
D.
E. Shaw & Co., L.P.
David
E. Shaw
|
||
|
(b)
|
Address
of Principal Business Office or, if none, Residence:
|
|
|
The
business address for each reporting person is:
120
W. 45th
Street, Tower 45, 39th
Floor
New
York, NY 10036
|
||
|
(c)
|
Citizenship:
|
|
|
D.
E. Shaw Valence Portfolios, L.L.C. is a limited liability
company
organized under the laws of the state of Delaware.
D.
E. Shaw & Co., L.P. is a limited partnership organized under the
laws of the state of Delaware.
David
E. Shaw is a citizen of the United States of
America.
|
||
|
(d)
|
Title
of Class of Securities:
|
|
|
Common
Stock, $0.01
par value
|
||
|
(e)
|
CUSIP
Number:
|
|
|
629377508
|
|
Item
3.
|
If
this statement is filed pursuant to Rule 13d-1(b) or 13d-2(b) or
(c),
check whether the person filing is a:
|
|||
|
Not
Applicable
|
||||
|
Item
4.
|
Ownership
|
|
|
As
of December 31, 2007:
(a)
Amount beneficially owned:
|
||
|
D.
E. Shaw Valence Portfolios, L.L.C.:
|
6,009,200
shares
This
is composed of (i) 5,584,200 shares that D. E. Shaw Valence
Portfolios, L.L.C. has the right to acquire
through the exercise of listed
call options and (ii) 425,000 shares that D. E. Shaw Valence Portfolios,
L.L.C. has the right to acquire through the
conversion of NRG 4%
convertible perpetual preferred
stock.
|
|
D.
E. Shaw & Co., L.P.:
|
6,078,937
shares
This
is composed of (i) 5,584,200 shares that D. E. Shaw Valence Portfolios,
L.L.C. has the right to acquire through the exercise
of listed call
options, (ii) 425,000 shares that D. E. Shaw Valence Portfolios,
L.L.C. has the right to acquire through the conversion
of NRG 4%
convertible perpetual preferred stock, (iii)
68,000 shares in the name of
D. E. Shaw Composite Portfolios, L.L.C., and (iv) 1,737
shares
in the name of D. E. Shaw Synoptic Portfolios 2,
L.L.C.
|
|
David
E. Shaw:
|
6,078,937
shares
This
is composed of (i) 5,584,200 shares that
D. E. Shaw Valence
Portfolios, L.L.C. has the right to acquire
through the exercise of listed
call options, (ii) 425,000 shares that D. E. Shaw Valence
Portfolios, L.L.C. has the right to acquire
through the conversion of NRG
4% convertible perpetual preferred stock,
(iii) 68,000 shares in the name
of D. E. Shaw Composite Portfolios, L.L.C., and (iv)
1,737
shares in the name of D. E. Shaw Synoptic Portfolios 2,
L.L.C.
|
|
D.
E. Shaw Valence Portfolios, L.L.C.:
|
2.5%
|
|
|
D.
E. Shaw & Co., L.P.:
|
2.5%
|
|
|
David
E. Shaw:
|
2.5%
|
|
D.
E. Shaw Valence Portfolios, L.L.C.:
|
-0-
shares
|
|
|
D.
E. Shaw & Co., L.P.:
|
-0-
shares
|
|
|
David
E. Shaw:
|
-0-
shares
|
|
D.
E. Shaw Valence Portfolios, L.L.C.:
|
6,009,200
shares
|
|
|
D.
E. Shaw & Co., L.P.:
|
6,078,937 shares
|
|
|
David
E. Shaw:
|
6,078,937
shares
|
|
D.
E. Shaw Valence Portfolios, L.L.C.:
|
-0-
shares
|
|
|
D.
E. Shaw & Co., L.P.:
|
-0-
shares
|
|
|
David
E. Shaw:
|
-0-
shares
|
|
D.
E. Shaw Valence Portfolios, L.L.C.:
|
6,009,200 shares
|
|
|
D.
E. Shaw & Co., L.P.:
|
6,078,937 shares
|
|
|
David
E. Shaw:
|
6,078,937 shares
|
|
Item
5.
|
Ownership
of Five Percent or Less of a Class
|
|
|
If
this statement is being filed to report the fact that as of the
date
hereof the reporting person has ceased to be the beneficial owner
of more
than 5 percent of the class of securities, check the following
[X].
|
||
|
Item
6.
|
Ownership
of More than Five Percent on Behalf of Another
Person
|
|
|
Not
Applicable
|
||
|
Item
7.
|
Identification
and Classification of the Subsidiary Which Acquired the Security
Being
Reported on By the Parent Holding Company or Control Person
|
|
|
Not
Applicable
|
||
|
Item
8.
|
Identification
and Classification of Members of the Group
|
|
|
Not
Applicable
|
||
|
Item
9.
|
Notice
of Dissolution of Group
|
|
|
Not
Applicable
|
||
|
Item
10.
|
Certification
|
|
|
By
signing below, each of D. E. Shaw Valence Portfolios, L.L.C.,
D. E. Shaw & Co., L.P., and David E. Shaw certify
that, to the best of such reporting person’s knowledge and belief, the
securities referred to above were not acquired and are not
held for the
purpose of or with the effect of changing or influencing
the control of
the issuer of the securities and were not acquired and are
not held in
connection with or as a participant in any transaction having
such
purposes or
effect.
|
||
|
|
D.
E. Shaw Valence Portfolios, L.L.C.
|
||
|
|
By:
|
D.
E. Shaw & Co., L.P., as managing
member
|
|
|
|
|
|
|
| By: | /s/ Rochelle Elias | ||
|
|
|
|
Rochelle
Elias
Chief
Compliance Officer
|
| D. E. Shaw & Co., L.P. | ||
| |
|
|
| By: | /s/ Rochelle Elias | |
|
Rochelle
Elias
Chief
Compliance Officer
|
||
| David E. Shaw | ||
| |
|
|
| By: | /s/ Rochelle Elias | |
|
Rochelle
Elias
Attorney-in-Fact
for
David E. Shaw
|
||