1
|
NAME OF REPORTING PERSON
ACCIPITER LIFE SCIENCES FUND, LP
|
||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC USE ONLY
|
||
4
|
SOURCE OF FUNDS
WC
|
||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
|
¨
|
|
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
|
||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
1,581,113
|
|
8
|
SHARED VOTING POWER
- 0 -
|
||
9
|
SOLE DISPOSITIVE POWER
1,581,113
|
||
10
|
SHARED DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,581,113
|
||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
|
o
|
|
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
5.28%
|
||
14
|
TYPE OF REPORTING PERSON
PN
|
1
|
NAME OF REPORTING PERSON
ACCIPITER LIFE SCIENCES FUND (OFFSHORE), LTD.
|
||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC USE ONLY
|
||
4
|
SOURCE OF FUNDS
WC
|
||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
|
¨
|
|
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
CAYMAN ISLANDS
|
||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
2,342,385
|
|
8
|
SHARED VOTING POWER
- 0 -
|
||
9
|
SOLE DISPOSITIVE POWER
2,342,385
|
||
10
|
SHARED DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,342,385
|
||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
|
o
|
|
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.82%
|
||
14
|
TYPE OF REPORTING PERSON
CO
|
1
|
NAME OF REPORTING PERSON
CANDENS CAPITAL, LLC
|
||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC USE ONLY
|
||
4
|
SOURCE OF FUNDS
AF
|
||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
|
¨
|
|
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
|
||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
1,581,113
|
|
8
|
SHARED VOTING POWER
- 0 -
|
||
9
|
SOLE DISPOSITIVE POWER
1,581,113
|
||
10
|
SHARED DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,581,113
|
||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
|
o
|
|
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
5.28%
|
||
14
|
TYPE OF REPORTING PERSON
OO
|
1
|
NAME OF REPORTING PERSON
ACCIPITER CAPITAL MANAGEMENT, LLC
|
||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC USE ONLY
|
||
4
|
SOURCE OF FUNDS
AF
|
||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
|
¨
|
|
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
|
||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
2,342,385
|
|
8
|
SHARED VOTING POWER
- 0 -
|
||
9
|
SOLE DISPOSITIVE POWER
2,342,385
|
||
10
|
SHARED DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,342,385
|
||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
|
o
|
|
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.82%
|
||
14
|
TYPE OF REPORTING PERSON
OO
|
1
|
NAME OF REPORTING PERSON
GABE HOFFMAN
|
||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC USE ONLY
|
||
4
|
SOURCE OF FUNDS
AF
|
||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
|
¨
|
|
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
USA
|
||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
3,923,498
|
|
8
|
SHARED VOTING POWER
- 0 -
|
||
9
|
SOLE DISPOSITIVE POWER
3,923,498
|
||
10
|
SHARED DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,923,498
|
||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
|
o
|
|
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13.09%
|
||
14
|
TYPE OF REPORTING PERSON
IN
|
Item 4.
|
Purpose of Transaction.
|
Dated: May 6, 2011
|
ACCIPITER LIFE SCIENCES FUND, LP
|
|
By:
|
Candens Capital, LLC
its general partner
|
|
By:
|
/s/ Gabe Hoffman
|
|
Gabe Hoffman, Managing Member
|
ACCIPITER LIFE SCIENCES FUND (OFFSHORE), LTD.
|
||
By:
|
Accipiter Capital Management, LLC
its investment manager
|
|
By:
|
/s/ Gabe Hoffman
|
|
Gabe Hoffman, Managing Member
|
ACCIPITER CAPITAL MANAGEMENT, LLC
|
||
By:
|
/s/ Gabe Hoffman
|
|
Gabe Hoffman, Managing Member
|
CANDENS CAPITAL, LLC
|
||
By:
|
/s/ Gabe Hoffman
|
|
Gabe Hoffman, Managing Member
|
/s/ Gabe Hoffman
|
|
GABE HOFFMAN
|