o
|
Rule
13d-1(b)
|
|
x
|
Rule
13d-1(c)
|
|
o
|
Rule
13d-1(d)
|
CUSIP
No. 584688105
|
|||||
1.
|
Names
of Reporting Persons. I.R.S. Identification Nos. of above persons
(entities only)
D.
E. Shaw Meniscus Portfolios, L.L.C.
51-0481096
|
||||
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
|
5.
|
Sole
Voting Power
-0-
|
|||
Beneficially Ownedby
|
6.
|
Shared
Voting Power
3,134,569
|
|||
Each
Reporting |
7.
|
Sole
Dispositive Power
-0-
|
|||
Person
With
|
8.
|
Shared
Dispositive Power
3,134,569
|
|||
|
|
||||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
3,134,569
|
||||
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)
5.5%
|
||||
12.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 584688105
|
||||||
1.
|
Names
of Reporting Persons. I.R.S. Identification Nos. of above persons
(entities only)
D.
E. Shaw & Co., L.L.C.
13-3799946
|
|||||
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
|
5.
|
Sole
Voting Power
-0-
|
||||
Beneficially Owned
by |
6.
|
Shared
Voting Power
3,134,688
|
||||
Each
Reporting
|
7.
|
Sole
Dispositive Power
-0-
|
||||
Person
With
|
8.
|
Shared
Dispositive Power
3,134,688
|
||||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
3,134,688
|
|||||
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)
5.5%
|
|||||
12.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 584688105
|
||||||
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
|
5.
|
Sole
Voting Power
-0-
|
||||
Beneficially Owned
by |
6.
|
Shared
Voting Power
3,287,665
|
||||
Each
Reporting
|
7.
|
Sole
Dispositive Power
-0-
|
||||
Person
With
|
8.
|
Shared
Dispositive Power
3,287,665
|
||||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
3,287,665
|
|||||
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)
5.7%
|
|||||
12.
|
Type
of Reporting Person (See Instructions)
IA,
PN
|
CUSIP
No. 584688105
|
||||||
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
|
5.
|
Sole
Voting Power
-0-
|
||||
Beneficially Owned
by |
6.
|
Shared
Voting Power
3,287,665
|
||||
Each
Reporting
|
7.
|
Sole
Dispositive Power
-0-
|
||||
Person
With
|
8.
|
Shared
Dispositive Power
3,287,665
|
||||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
3,287,665
|
|||||
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)
5.7%
|
|||||
12.
|
Type
of Reporting Person (See Instructions)
IN
|
D.
E. Shaw Meniscus Portfolios, L.L.C.
|
3,134,569
shares
|
D.
E. Shaw & Co., L.L.C.:
|
3,134,688
shares
This
is composed of (i) 3,134,569 shares in the name of
D.
E. Shaw Meniscus Portfolios, L.L.C. and (ii) 119 shares in
the name of
D.
E. Shaw Synoptic Portfolios 2, L.L.C.
|
D.
E. Shaw & Co., L.P.:
|
3,287,665
shares
This
is composed of (i) 3,134,569 shares in the name of
D.
E. Shaw Meniscus Portfolios, L.L.C. (ii) 119 shares in the
name of
D.
E. Shaw Synoptic Portfolios 2, L.L.C., (iii) 103,477 shares
in the name of
D.
E. Shaw Valence Portfolios, L.L.C., and (iv) 49,500 shares
that
D.
E. Shaw Valence, L.L.C. has the right to acquire through
the exercise of
listed call options.
|
David
E. Shaw:
|
3,287,665
shares
This
is composed of (i) 3,134,569 shares in the name of
D.
E. Shaw Meniscus Portfolios, L.L.C., (ii) 119 shares in the
name of
D.
E. Shaw Synoptic Portfolios 2, L.L.C., (iii) 103,477 shares
in the name of
D.
E. Shaw Valence Portfolios, L.L.C., and (iv) 49,500 shares
that
D.
E. Shaw Valence, L.L.C. has the right to acquire through
the exercise of
listed call options.
|
D.
E. Shaw Meniscus Portfolios, L.L.C.:
|
5.5%
|
D.
E. Shaw & Co., L.L.C.:
|
5.5%
|
D.
E. Shaw & Co., L.P.:
|
5.7%
|
David
E. Shaw:
|
5.7%
|
(i)
Sole power to vote or to direct the vote:
|
|
D.
E. Shaw Meniscus Portfolios, L.L.C.:
|
-0-
shares
|
D.
E. Shaw & Co., L.L.C.:
|
-0-
shares
|
D.
E. Shaw & Co., L.P.:
|
-0-
shares
|
David
E. Shaw:
|
-0-
shares
|
(ii)
Shared power to vote or to direct the vote:
|
|
D.
E. Shaw Meniscus Portfolios, L.L.C.:
|
3,134,569
shares
|
D.
E. Shaw & Co., L.L.C.:
|
3,134,688
shares
|
D.
E. Shaw & Co., L.P.:
|
3,287,665
shares
|
David
E. Shaw:
|
3,287,665
shares
|
(iii)
Sole power to dispose or to direct the disposition of:
|
|
D.
E. Shaw Meniscus Portfolios, L.L.C.:
|
-0-
shares
|
D.
E. Shaw & Co., L.L.C.:
|
-0-
shares
|
D.
E. Shaw & Co., L.P.:
|
-0-
shares
|
David
E. Shaw:
|
-0-
shares
|
(iv)
Shared power to dispose or to direct the disposition of:
|
D.
E. Shaw Meniscus Portfolios, L.L.C.:
|
3,134,569
shares
|
D.
E. Shaw & Co., L.L.C.:
|
3,134,688
shares
|
D.
E. Shaw & Co., L.P.:
|
3,287,665
shares
|
David
E. Shaw:
|
3,287,665
shares
|
Item
5. Ownership
of Five Percent or Less of a Class
|
|||
Not
Applicable
|
|||
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
|
D. E. Shaw Meniscus Portfolios, L.L.C. | ||||
By: | D. E. Shaw & Co., L.L.C., as managing member | |||
By: | /s/ Anne Dinning | |||
Anne Dinning |
||||
Managing Director | ||||
D. E. Shaw & Co., L.L.C. | ||
|
|
|
By: | /s/ Anne Dinning | |
Anne Dinning |
||
Managing Director | ||
D. E. Shaw & Co., L.P. | ||
|
|
|
By: | /s/ Anne Dinning | |
Anne Dinning |
||
Managing Director | ||
David E. Shaw | ||
|
|
|
By: | /s/ Anne Dinning | |
Anne Dinning |
||
Attorney-in-Fact for David E. Shaw |
D. E. Shaw Meniscus Portfolios, L.L.C. | ||||
By: | D. E. Shaw & Co., L.L.C., as managing member | |||
By: | /s/ Anne Dinning | |||
Anne Dinning |
||||
Managing Director | ||||
D. E. Shaw & Co., L.L.C. | ||
|
|
|
By: | /s/ Anne Dinning | |
Anne Dinning |
||
Managing Director | ||
D. E. Shaw & Co., L.P. | ||
|
|
|
By: | /s/ Anne Dinning | |
Anne Dinning |
||
Managing Director | ||
David E. Shaw | ||
|
|
|
By: | /s/ Anne Dinning | |
Anne Dinning |
||
Attorney-in-Fact for David E. Shaw |