(Name of Issuer)
Common Stock, par value $0.001 per share
|
(Title of Class of Securities) |
09060J106
|
(CUSIP Number)
March 21, 2011
|
(Date of Event which Requires Filing of this Statement) |
CUSIP No. 09060J106
|
||
1
|
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) 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
2,403,848
|
||
7
|
SOLE DISPOSITIVE POWER
-0-
|
||
8
|
SHARED DISPOSITIVE POWER
2,403,848
|
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,403,848
|
|
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions)
|
o
|
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.3%
|
|
12
|
TYPE OF REPORTING PERSON (See Instructions)
IN
|
CUSIP No. 09060J106
|
||
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) 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
2,403,848
|
||
7
|
SOLE DISPOSITIVE POWER
-0-
|
||
8
|
SHARED DISPOSITIVE POWER
2,403,848
|
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,403,848
|
|
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions)
|
o
|
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.3%
|
|
12
|
TYPE OF REPORTING PERSON (See Instructions)
IN
|
Item 1(a)
|
Name of Issuer:
|
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
|
Business Address
|
|
Felix J. Baker
|
667 Madison Avenue
New York, NY 10021
|
|
Julian C. Baker
|
667 Madison Avenue
New York, NY 10021
|
Item 2(c)
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Citizenship:
|
Item 2(d)
|
Title of Class of Securities:
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Item 2(e)
|
CUSIP Number:
|
Item 3.
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If this statement is filed pursuant to §§240.13d-1(b) or (c), check whether the person filing is a: N/A
|
Item 4.
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Ownership.
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Name
|
Number of
Shares
|
Percent of Class
Outstanding
|
||||||
Baker Brothers Life Sciences, L.P.
|
2,403,848 | 8.3 | % |
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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/s/ Felix J. Baker
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Felix J. Baker
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/s/ Julian C. Baker
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Julian C. Baker
|
/s/ Felix J. Baker
|
Felix J. Baker
|
/s/ Julian C. Baker
|
Julian C. Baker
|