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CUSIP
No. G81477104
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Page
2 of
7 Pages
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1
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NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSON (ENTITIES ONLY)
Bridger
Management, LLC
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2
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CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a)o
(b)
x
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3
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SEC
USE ONLY
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4
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CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
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NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
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5
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SOLE
VOTING POWER
0
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6
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SHARED
VOTING POWER
3,500,000
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7
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SOLE
DISPOSITIVE POWER
0
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8
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SHARED
DISPOSITIVE POWER
3,500,000
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9
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AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,500,000
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10
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CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES*
o
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11
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PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
6.49%
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12
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TYPE
OF REPORTING PERSON*
OO
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CUSIP
No. G81477104
|
Page
3 of
7 Pages
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|
1
|
NAME
OF REPORTING PERSON
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSON (ENTITIES ONLY)
Roberto
Mignone
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||
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2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a)
o
(b)
x
|
||
|
3
|
SEC
USE ONLY
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||
|
4
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CITIZENSHIP
OR PLACE OF ORGANIZATION
United
States
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||
|
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE
VOTING POWER
0
|
|
|
6
|
SHARED
VOTING POWER
3,500,000
|
||
|
7
|
SOLE
DISPOSITIVE POWER
0
|
||
|
8
|
SHARED
DISPOSITIVE POWER
3,500,000
|
||
|
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,500,000
|
||
|
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES*
o
|
||
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
6.49%
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||
|
12
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TYPE
OF REPORTING PERSON*
IN
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Item
1(a).
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Name
of Issuer: Sina Corporation
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Item
1(b).
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Address
of Issuer’s Principal Executive
Offices:
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Item
2(a, b, c).
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Name
of Persons Filing, Address of Principal Business Office,
Citizenship:
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Item
2(d).
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Title
of Class of Securities: Common Stock, par value $0.133 per share
(the
“Common Stock”)
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Item
2(e).
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CUSIP
Number: G81477104
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Item
3.
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Not
Applicable.
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Item
4.
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Ownership.
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1.
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Bridger
Management, LLC:
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(a)
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Amount
beneficially owned: 3,500,000
shares.
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(b)
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Percent
of class: 6.49%. The percentage of Common Stock reported as beneficially
owned is based upon 53,925,270 shares outstanding as reported by
the
Issuer on its Quarterly Report on Form 10-Q for the quarter ended
September 30, 2006.
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(c)
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Number
of shares as to which such person
has:
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(i)
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Sole
power to vote or to direct the vote:
0
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(ii)
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Shared
power to vote or to direct the vote: 3,500,000
shares
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(iii)
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Sole
power to dispose or to direct the disposition of:
0
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(iv)
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Shared
power to dispose or to direct the disposition of: 3,500,000
shares.
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2.
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Roberto
Mignone
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(a)
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Amount
beneficially owned: 3,500,000
shares.
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(b)
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Percent
of class (determined as set forth in paragraph 1(b) of this Item
4):
6.49%
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(c)
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Number
of shares as to which such person
has:
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(i)
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Sole
power to vote or to direct the vote: 0
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(ii)
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Shared
power to vote or to direct the vote: 3,500,000 shares
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(iii)
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Sole
power to dispose or to direct the disposition of:
0
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(iv)
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Shared
power to dispose or to direct the disposition of: 3,500,000
shares.
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Item
5.
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Ownership
of Five Percent or less of a Class:
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Item
6.
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Ownership
of More than Five Percent on Behalf of Another
Person.
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Item
7.
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Identification
and Classification of the Subsidiary Which Acquired the Security
Being
Reported on By the Parent Holding Company or Control
Person.
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Item
8.
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Identification
and Classification of Members of the
Group.
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Item
9.
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Notice
of Dissolution of Group.
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Item
10.
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Certification.
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