CUSIP
No. 885807107
|
1
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NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)
Felix
J. Baker
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
Instructions)
(a)
¨
(b)
x
|
||
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
3,249,959
|
||
7
|
SOLE
DISPOSITIVE POWER
-0-
|
||
8
|
SHARED
DISPOSITIVE POWER
3,249,959
|
||
9
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AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,249,959
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
(See
Instructions)
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.7%
|
||
12
|
TYPE
OF REPORTING PERSON (See Instructions)
IN
|
CUSIP
No. 885807107
|
|||
1
|
NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)
Julian
C. Baker
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
Instructions)
(a)
¨
(b)
x
|
||
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
3,249,959
|
||
7
|
SOLE
DISPOSITIVE POWER
-0-
|
||
8
|
SHARED
DISPOSITIVE POWER
3,249,959
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,249,959
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
(See
Instructions)
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.7%
|
||
12
|
TYPE
OF REPORTING PERSON (See Instructions)
IN
|
Item
1(a)
|
Name
of Issuer:
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Item
1(b)
|
Address
of Issuer’s Principal Executive
Offices:
|
Item
2(a)
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Name
of Person Filing:
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Item
2(b)
|
Address
of Principal Business Office or, if None,
Residence:
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Name
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Business
Address
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||
Felix
J. Baker
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667
Madison Avenue
New
York, NY 10021
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||
Julian
C. Baker
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667
Madison Avenue
New
York, NY 10021
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Item
2(c)
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Citizenship:
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Item
2(d)
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Title
of Class of Securities:
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Item
2(e)
|
CUSIP
Number:
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Item
3.
|
If
this statement is filed pursuant to §§240.13d-1(b) or (c), check whether
the person filing is a:
N/A
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Item
4.
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Ownership.
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Name
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Number
of
Shares
|
Percent
of Class
Outstanding
|
||||||
Baker
Biotech Fund I, L.P.
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815,508
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2.2
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%
|
|||||
Baker
Brothers Life Sciences, L.P.
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2,338,877
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6.3
|
%
|
|||||
14159,
L.P.
|
69,865
|
0.2
|
%
|
|||||
Baker/Tisch
Investments, L.P.
|
25,709
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0.0
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%
|
|||||
Total
|
3,249,959
|
8.7
|
%
|
Item
5.
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Ownership
of Five Percent or Less of a
Class.
|
Item
6.
|
Ownership
of More than Five Percent on Behalf of Another
Person.
|
Item
7.
|
Identification
and Classification of the Subsidiary Which Acquired the Security
Being
Reported on by the Parent Holding Company or Control
Person.
|
Item
8.
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Identification
and Classification of Members of the
Group.
|
Item
9.
|
Notice
of Dissolution of Group.
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Item
10.
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Certification.
|
/s/
Felix J. Baker
|
|
Felix
J. Baker
|
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/s/
Julian C. Baker
|
|
Julian
C. Baker
|
/s/
Felix J. Baker
|
|
Felix
J. Baker
|
|
/s/
Julian C. Baker
|
|
Julian
C. Baker
|