CUSIP
No.
|
29264F205
|
1
|
Name
of Reporting Person.
I.R.S.
IDENTIFICATION
D.
E. Shaw Valence Portfolios, L.L.C.
FEIN
13-4046559
|
2
|
Check
the Appropriate Box if a Member of a Group (SeeInstructions)
(a) o
(b) o
|
3
|
SEC
Use Only
|
4
|
Source
of Funds (See Instructions)
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
5,083,041
|
|
9
|
Sole
Dispositive Power
-0-
|
|
10
|
Shared
Dispositive Power
5,083,041
|
11
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
5,083,041
|
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)
4.4%
|
14
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No.
|
29264F205
|
1
|
Name
of Reporting Person.
I.R.S.
IDENTIFICATION
D.
E. Shaw & Co., L.P.
FEIN
13-3695715
|
2
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a) o
(b)
o
|
3
|
SEC
Use Only
|
4
|
Source
of Funds (See Instructions)
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
Delaware
|
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
With
|
7
|
Sole
Voting Power
-0-
|
8
|
Shared
Voting Power
5,093,056
|
|
9
|
Sole
Dispositive Power
-0-
|
|
10
|
Shared
Dispositive Power
5,093,056
|
11
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
5,093,056
|
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)
4.4%
|
14
|
Type
of Reporting Person (See Instructions)
IA,
PN
|
CUSIP
No.
|
29264F205
|
1
|
Name
of Reporting Person.
I.R.S.
IDENTIFICATION
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
|
Source
of Funds (See Instructions)
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
|
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
With
|
7
|
Sole
Voting Power
-0-
|
8
|
Shared
Voting Power
5,093,056
|
|
9
|
Sole
Dispositive Power
-0-
|
|
10
|
Shared
Dispositive Power
5,093,056
|
11
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
5,093,056
|
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)
4.4%
|
14
|
Type
of Reporting Person (See Instructions)
IN
|
Item
5.
|
Interest
in Securities of the Issuer
|
Name
|
Date
|
Price
per Share1
|
Number of Shares
Purchased/(Sold)
|
Heliant
|
8/10/2010
|
25.732
|
200
|
Oculus
|
8/10/2010
|
25.733
|
800
|
Oculus
|
8/10/2010
|
25.734
|
(33,397)
|
Synoptic
|
8/10/2010
|
25.775
|
3,722
|
Synoptic
|
8/10/2010
|
25.786
|
(2,528)
|
Name
|
Date
|
Price
per Share1
|
Number of Shares
Purchased/(Sold)
|
Oculus
|
8/11/2010
|
25.157
|
(2,030)
|
Synoptic
|
8/11/2010
|
25.188
|
1,301
|
Synoptic
|
8/11/2010
|
25.269
|
(1,920)
|
Synoptic
|
8/12/2010
|
25.0310
|
(800)
|
Synoptic
|
8/12/2010
|
25.1011
|
817
|
Synoptic
|
8/13/2010
|
24.8712
|
900
|
Synoptic
|
8/13/2010
|
24.9113
|
(406)
|
DESIM
|
8/16/2010
|
24.9714
|
(200)
|
Heliant
|
8/16/2010
|
24.99
|
100
|
Synoptic
|
8/16/2010
|
25.0315
|
(546)
|
Synoptic
|
8/16/2010
|
25.0616
|
138
|
DESIM
|
8/17/2010
|
25.6417
|
(1,100)
|
Heliant
|
8/17/2010
|
25.7818
|
200
|
Oculus
|
8/17/2010
|
26.12
|
100
|
Synoptic
|
8/17/2010
|
25.8119
|
(2,306)
|
Synoptic
|
8/17/2010
|
25.8420
|
2,186
|
Synoptic
|
8/17/2010
|
26.1821
|
(1,100)
|
DESIM
|
8/18/2010
|
28.2822
|
(2,102)
|
DESIM
|
8/18/2010
|
28.8623
|
(200)
|
Heliant
|
8/18/2010
|
28.1624
|
200
|
Oculus
|
8/18/2010
|
28.3025
|
400
|
Oculus
|
8/18/2010
|
28.6726
|
(4,900)
|
Synoptic
|
8/18/2010
|
27.7927
|
4,900
|
Synoptic
|
8/18/2010
|
27.9528
|
(9,071)
|
Synoptic
|
8/18/2010
|
28.4929
|
14,523
|
Synoptic
|
8/18/2010
|
28.5930
|
(7,548)
|
Synoptic
|
8/18/2010
|
29.0931
|
102
|
Valence
|
8/18/2010
|
26.9432
|
(25,100)
|
Valence
|
8/18/2010
|
28.1633
|
(74,900)
|
Valence
|
8/18/2010
|
29.0734
|
(2,700)
|
DESIM
|
8/19/2010
|
28.8735
|
(1,581)
|
Heliant
|
8/19/2010
|
28.5936
|
500
|
Oculus
|
8/19/2010
|
28.7337
|
2,200
|
Oculus
|
8/19/2010
|
29.0138
|
(1,300)
|
Synoptic
|
8/19/2010
|
28.7539
|
5,086
|
Synoptic
|
8/19/2010
|
28.8940
|
(6,974)
|
Valence
|
8/19/2010
|
28.5741
|
(100,000)
|
DESIM
|
8/20/2010
|
28.9742
|
(1,000)
|
Oculus
|
8/20/2010
|
28.9243
|
(700)
|
Oculus
|
8/20/2010
|
29.20
|
100
|
Synoptic
|
8/20/2010
|
28.9544
|
4,038
|
Synoptic
|
8/20/2010
|
28.9745
|
(4,398)
|
Valence
|
8/20/2010
|
29.0546
|
(98,400)
|
DESIM
|
8/23/2010
|
29.1747
|
(300)
|
Heliant
|
8/23/2010
|
29.2748
|
300
|
Oculus
|
8/23/2010
|
28.87
|
(100)
|
Synoptic
|
8/23/2010
|
29.0349
|
1,861
|
Synoptic
|
8/23/2010
|
29.0350
|
(1,594)
|
Valence
|
8/23/2010
|
29.2151
|
(20,000)
|
DESIM
|
8/24/2010
|
28.2352
|
(400)
|
Heliant
|
8/24/2010
|
28.1953
|
200
|
Name
|
Date
|
Price
per Share1
|
Number
of Shares Purchased/(Sold)
|
Synoptic
|
8/24/2010
|
28.1454
|
5,493
|
Synoptic
|
8/24/2010
|
28.1755
|
(3,406)
|
DESIM
|
8/25/2010
|
28.1756
|
(400)
|
Heliant
|
8/25/2010
|
27.93
|
200
|
Synoptic
|
8/25/2010
|
28.0757
|
2,389
|
Synoptic
|
8/25/2010
|
28.2258
|
(4,403)
|
Synoptic
|
8/25/2010
|
28.7959
|
200
|
DESIM
|
8/26/2010
|
28.3160
|
(300)
|
Synoptic
|
8/26/2010
|
28.2561
|
(6,019)
|
Synoptic
|
8/26/2010
|
28.3362
|
4,745
|
DESIM
|
8/27/2010
|
28.1463
|
(700)
|
Synoptic
|
8/27/2010
|
28.1664
|
2,618
|
Synoptic
|
8/27/2010
|
28.2065
|
(1,300)
|
DESIM
|
8/30/2010
|
27.6666
|
(800)
|
Heliant
|
8/30/2010
|
27.9267
|
300
|
Synoptic
|
8/30/2010
|
27.6768
|
1,006
|
Synoptic
|
8/30/2010
|
27.7169
|
(1,351)
|
DESIM
|
8/31/2010
|
27.4770
|
(200)
|
Heliant
|
8/31/2010
|
27.36
|
100
|
Synoptic
|
8/31/2010
|
27.3571
|
4,383
|
Synoptic
|
8/31/2010
|
27.4072
|
(2,339)
|
DESIM
|
9/1/2010
|
27.8473
|
(200)
|
Heliant
|
9/1/2010
|
27.8274
|
200
|
Synoptic
|
9/1/2010
|
27.8875
|
3,073
|
Synoptic
|
9/1/2010
|
27.9776
|
(2,915)
|
DESIM
|
9/2/2010
|
27.9177
|
(300)
|
Heliant
|
9/2/2010
|
27.91
|
100
|
Synoptic
|
9/2/2010
|
27.9778
|
(1,671)
|
Synoptic
|
9/2/2010
|
28.0879
|
782
|
DESIM
|
9/3/2010
|
28.6880
|
(300)
|
Heliant
|
9/3/2010
|
28.7081
|
300
|
Synoptic
|
9/3/2010
|
28.7082
|
3,223
|
Synoptic
|
9/3/2010
|
28.7583
|
(4,661)
|
DESIM
|
9/7/2010
|
28.4184
|
(300)
|
Heliant
|
9/7/2010
|
28.60
|
100
|
Oculus
|
9/7/2010
|
28.46
|
(100)
|
Synoptic
|
9/7/2010
|
28.2485
|
(1,931)
|
Synoptic
|
9/7/2010
|
28.2986
|
1,929
|
DESIM
|
9/8/2010
|
28.3587
|
(200)
|
Oculus
|
9/8/2010
|
28.3588
|
(200)
|
Synoptic
|
9/8/2010
|
28.3789
|
4,941
|
Synoptic
|
9/8/2010
|
28.4390
|
(5,126)
|
DESIM
|
9/9/2010
|
28.65
|
(200)
|
Synoptic
|
9/9/2010
|
28.4591
|
5,164
|
Synoptic
|
9/9/2010
|
28.5892
|
(3,493)
|
Valence
|
9/9/2010
|
28.5493
|
(35,000)
|
DESIM
|
9/10/2010
|
28.4294
|
(200)
|
Oculus
|
9/10/2010
|
28.4895
|
(273)
|
Synoptic
|
9/10/2010
|
28.5196
|
(3,345)
|
Synoptic
|
9/10/2010
|
28.5297
|
1,509
|
Valence
|
9/10/2010
|
28.4898
|
(100,000)
|
Name | Date |
Price
per Share1
|
Number
of Shares Purchased/(Sold)
|
DESIM
|
9/13/2010
|
28.6699
|
(200)
|
Synoptic
|
9/13/2010
|
28.65100
|
(1,375)
|
Synoptic
|
9/13/2010
|
28.66101
|
2,019
|
Valence
|
9/13/2010
|
28.67102
|
(70,002)
|
DESIM
|
9/14/2010
|
29.16103
|
(200)
|
Heliant
|
9/14/2010
|
29.63104
|
200
|
Synoptic
|
9/14/2010
|
29.30105
|
4,002
|
Synoptic
|
9/14/2010
|
29.31106
|
(5,015)
|
Synoptic
|
9/14/2010
|
29.82
|
100
|
Valence
|
9/14/2010
|
29.36107
|
(193,238)
|
DESIM
|
9/15/2010
|
29.51
|
(100)
|
Heliant
|
9/15/2010
|
29.72
|
100
|
Synoptic
|
9/15/2010
|
29.44108
|
(4,524)
|
Synoptic
|
9/15/2010
|
29.48109
|
5,005
|
Valence
|
9/15/2010
|
29.64110
|
(200,000)
|
DESIM
|
9/16/2010
|
29.13
|
(100)
|
Heliant
|
9/16/2010
|
29.64
|
27
|
Oculus
|
9/16/2010
|
29.51111
|
173
|
Synoptic
|
9/16/2010
|
29.13112
|
1,285
|
Synoptic
|
9/16/2010
|
29.23113
|
(2,494)
|
Valence
|
9/16/2010
|
29.25114
|
(69,465)
|
Synoptic
|
9/17/2010
|
29.48115
|
2,751
|
Synoptic
|
9/17/2010
|
29.63116
|
(2,000)
|
Valence
|
9/17/2010
|
29.47117
|
(200,000)
|
Synoptic
|
9/20/2010
|
29.49118
|
3,137
|
Synoptic
|
9/20/2010
|
29.51119
|
(3,126)
|
Valence
|
9/20/2010
|
29.49120
|
(150,000)
|
DESIM
|
9/21/2010
|
29.04
|
(100)
|
Synoptic
|
9/21/2010
|
28.97121
|
7,513
|
Synoptic
|
9/21/2010
|
28.99122
|
(6,867)
|
DESIM
|
9/22/2010
|
28.68
|
(100)
|
Synoptic
|
9/22/2010
|
28.86123
|
(3,260)
|
Synoptic
|
9/22/2010
|
28.88124
|
2,864
|
Valence
|
9/22/2010
|
29.07125
|
(15,000)
|
DESIM
|
9/23/2010
|
29.75126
|
(200)
|
Synoptic
|
9/23/2010
|
29.67127
|
(4,989)
|
Synoptic
|
9/23/2010
|
29.68128
|
4,579
|
Valence
|
9/23/2010
|
29.77129
|
(134,684)
|
DESIM
|
9/24/2010
|
30.41130
|
(200)
|
Synoptic
|
9/24/2010
|
30.40131
|
4,125
|
Synoptic
|
9/24/2010
|
30.43132
|
(2,448)
|
Valence
|
9/24/2010
|
30.47133
|
(100,000)
|
Synoptic
|
9/27/2010
|
30.34134
|
(826)
|
Synoptic
|
9/27/2010
|
30.45135
|
435
|
Valence
|
9/27/2010
|
30.46136
|
(250,000)
|
DESIM
|
9/28/2010
|
33.39137
|
(300)
|
Synoptic
|
9/28/2010
|
33.39138
|
14,885
|
Synoptic
|
9/28/2010
|
33.49139
|
(14,328)
|
Synoptic
|
9/28/2010
|
34.04140
|
700
|
Synoptic
|
9/28/2010
|
34.14
|
(200)
|
Valence
|
9/28/2010
|
33.44141
|
(150,000)
|
Name | Date |
Price
per Share1
|
Number
of Shares Purchased/(Sold)
|
DESIM
|
9/29/2010
|
33.00142
|
(300)
|
Oculus
|
9/29/2010
|
33.52143
|
300
|
Synoptic
|
9/29/2010
|
33.12144
|
(8,913)
|
Synoptic
|
9/29/2010
|
33.14145
|
8,096
|
Synoptic
|
9/29/2010
|
33.66146
|
1,142
|
Synoptic
|
9/29/2010
|
33.71147
|
(1,004)
|
Valence
|
9/29/2010
|
33.16148
|
(16,758)
|
Valence
|
9/29/2010
|
33.67149
|
(35,242)
|
DESIM
|
9/30/2010
|
33.34150
|
(200)
|
Synoptic
|
9/30/2010
|
33.31151
|
(5,238)
|
Synoptic
|
9/30/2010
|
33.37152
|
4,274
|
Synoptic
|
9/30/2010
|
33.60
|
100
|
Valence
|
9/30/2010
|
33.44153
|
(100,000)
|
Item
6.
|
Contracts,
Arrangements, Understandings or Relationships with Respect to Securities
of the Issuer
|
Item
7.
|
Material
to be Filed as Exhibits
|
Exhibit
1
|
Power
of Attorney, granted by David E. Shaw relating to D. E. Shaw & Co.,
Inc., in favor of the signatories hereto, among others, dated October 24,
2007.
|
D.
E. SHAW VALENCE PORTFOLIOS, L.L.C.
|
||
By:
|
/s/
Rochelle Elias
|
|
Rochelle
Elias
|
||
Authorized
Signatory
|
||
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
|