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
338,141
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
338,141
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
338,141
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
2.0%
|
||
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
DELAWARE
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE
VOTING POWER
338,780
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
338,780
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
338,780
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
2.0%
|
||
14
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
ACCIPITER LIFE SCIENCES FUND II,
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
234,661
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
234,661
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
234,661
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
1.4%
|
||
14
|
TYPE
OF REPORTING PERSON
PN
|
1
|
NAME
OF REPORTING PERSON
ACCIPITER LIFE SCIENCES FUND II
(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
481,915
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
481,915
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
481,915
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
2.9%
|
||
14
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
ACCIPITER LIFE SCIENCES FUND II
(QP), 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
279,853
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
279,853
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
279,853
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
1.7%
|
||
14
|
TYPE
OF REPORTING PERSON
PN
|
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
852,655
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
852,655
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
852,655
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
5.1%
|
||
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
820,695
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
820,695
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
820,695
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
4.9%
|
||
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
1,673,350
|
|
8
|
SHARED
VOTING POWER
- 0 -
|
||
9
|
SOLE
DISPOSITIVE POWER
1,673,350
|
||
10
|
SHARED
DISPOSITIVE POWER
- 0 -
|
||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,673,350
|
||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES
|
¨
|
|
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
9.9%
|
||
14
|
TYPE
OF REPORTING PERSON
IN
|
Item
4.
|
Purpose of
Transaction.
|
Item
5.
|
Interest in Securities
of the Issuer.
|
Item
7.
|
Material to be Filed
as Exhibits.
|
99.1
|
Press
release dated February 13, 2008.
|
Dated: February
14, 2008
|
ACCIPITER
LIFE SCIENCES FUND, LP
|
|
By:
|
Candens
Capital, LLC
its
general partner
|
|
By:
|
/s/
Gabe Hoffman
|
|
Gabe
Hoffman, Managing Member
|
ACCIPITER
LIFE SCIENCES FUND II, 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
LIFE SCIENCES FUND II (OFFSHORE), LTD.
|
||
By:
|
Accipiter
Capital Management, LLC
its
investment manager
|
|
By:
|
/s/
Gabe Hoffman
|
|
Gabe
Hoffman, Managing Member
|
ACCIPITER
LIFE SCIENCES FUND II (QP), LP
|
||
By:
|
Candens
Capital, LLC
its
general partner
|
|
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
|