Acadia
Pharmaceuticals Inc.
|
(Name
of Issuer)
|
Common
Stock, par value $0.0001 per share
|
(Title
of Class of Securities)
|
004225108
|
(CUSIP
Number)
|
December
31, 2009
|
(Date
of Event Which Requires Filing of this
Statement)
|
o | Rule 13d-1(b) |
x | Rule 13d-1(c) |
o | Rule 13d-1(d) |
1
|
NAME
OF REPORTING PERSON
Biotechnology
Value Fund, L.P.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
5
|
SOLE
VOTING POWER
0
shares
|
|
6
|
SHARED
VOTING POWER
71,476
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
71,476
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
71,476
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
PN
|
1
|
NAME
OF REPORTING PERSON
Biotechnology
Value Fund II, L.P.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
5
|
SOLE
VOTING POWER
0
shares
|
|
6
|
SHARED
VOTING POWER
45,250
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
45,250
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
45,250
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
PN
|
1
|
NAME
OF REPORTING PERSON
BVF
Investments, L.L.C.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
5
|
SOLE
VOTING POWER
0
shares
|
|
6
|
SHARED
VOTING POWER
109,500
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
109,500
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
109,500
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
OO
|
1
|
NAME
OF REPORTING PERSON
Investment
10, L.L.C.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Illinois
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
5
|
SOLE
VOTING POWER
0
shares
|
|
6
|
SHARED
VOTING POWER
12,000
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
12,000
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
12,000
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
OO
|
1
|
NAME
OF REPORTING PERSON
BVF
Partners L.P.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
5
|
SOLE
VOTING POWER
0
shares
|
|
6
|
SHARED
VOTING POWER
238,226
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
238,226
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
238,226
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
PN,
IA
|
1
|
NAME
OF REPORTING PERSON
BVF
Inc.
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(b) o
|
|
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
5
|
SOLE
VOTING POWER
0
shares
|
|
6
|
SHARED
VOTING POWER
238,226
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
238,226
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
238,226
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Mark
N. Lampert
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) x
(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
shares
|
|
6
|
SHARED
VOTING POWER
238,226
(1)
|
||
7
|
SOLE
DISPOSITIVE POWER
0
shares
|
||
8
|
SHARED
DISPOSITIVE POWER
238,226
(1)
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
238,226
(1)
|
||
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
|
¨
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
Less
than 1%
|
||
12
|
TYPE
OF REPORTING PERSON
IN
|
Item
1(a).
|
Name
of Issuer:
|
Item
1(b).
|
Address
of Issuer's Principal Executive
Offices:
|
Item
2(a).
|
Name
of Person Filing
|
Item
2(b).
|
Address
of Principal Business Office or, if None,
Residence
|
Item
2(c).
|
Citizenship
|
Item
2(d).
|
Title
of Class of Securities:
|
Item
2(e).
|
CUSIP
Number:
|
Item
3.
|
If
This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c),
Check Whether the Person Filing is
a:
|
|
(a)
|
/
/
|
Broker
or dealer registered under Section 15 of the Exchange
Act.
|
|
(b)
|
/
/
|
Bank
as defined in Section 3(a)(6) of the Exchange
Act.
|
|
(c)
|
/
/
|
Insurance
company as defined in Section 3(a)(19) of the Exchange
Act.
|
|
(d)
|
/
/
|
Investment
company registered under Section 8 of the Investment Company
Act.
|
|
(e)
|
/
/
|
An
investment adviser in accordance with Rule
13d-1(b)(1)(ii)(E).
|
|
(f)
|
/
/
|
An
employee benefit plan or endowment fund in accordance with Rule
13d-1(b)(1)(ii)(F).
|
|
(g)
|
/
/
|
A
parent holding company or control person in accordance with Rule
13d-1(b)(1)(ii)(G).
|
|
(h)
|
/
/
|
A
savings association as defined in Section 3(b) of the Federal Deposit
Insurance Act.
|
|
(i)
|
/
/
|
A
church plan that is excluded from the definition of an investment company
under Section 3(c)(14) of the Investment Company
Act.
|
|
(j)
|
/
/
|
Group,
in accordance with Rule
13d-1(b)(1)(ii)(J).
|
|
(k)
|
/
/
|
Group,
in accordance with Rule 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S.
institution in accordance with Rule 240.13d-1(b)(1)(ii)(J), please specify
the type of institution: ____
|
Item
4.
|
Ownership
|
|
(a)
|
Amount
beneficially owned:
|
|
(b)
|
Percent
of class:
|
|
(c)
|
Number
of shares as to which such person
has:
|
|
(i)
|
Sole
power to vote or to direct the vote
|
|
(ii)
|
Shared
power to vote or to direct the vote
|
|
(iii)
|
Sole
power to dispose or to direct the disposition
of
|
|
(iv)
|
Shared
power to dispose or to direct the disposition
of
|
Item
5.
|
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 That Acquired the Security Being
Reported on by the Parent Holding Company or Control
Person.
|
Item
8.
|
Identification
and Classification of Members of the
Group.
|
Item
9.
|
Notice
of Dissolution of Group.
|
Item
10.
|
Certifications.
|
BIOTECHNOLOGY
VALUE FUND, L.P.
|
INVESTMENT
10, L.L.C.
|
|||
By:
|
BVF
Partners L.P., its general partner
|
By:
|
BVF
Partners L.P., its investment manager
|
|
By:
|
BVF
Inc., its general partner
|
By:
|
BVF
Inc., its general partner
|
|
By:
|
/s/
Mark N.
Lampert
|
By:
|
/s/
Mark N.
Lampert
|
|
Mark
N. Lampert
|
Mark
N. Lampert
|
|||
President
|
President
|
BIOTECHNOLOGY
VALUE FUND II, L.P.
|
BVF
PARTNERS L.P.
|
|||
By:
|
BVF
Partners L.P., its general partner
|
By:
|
BVF
Inc., its general partner
|
|
By:
|
BVF
Inc., its general partner
|
By:
|
/s/ Mark N.
Lampert
|
|
Mark
N. Lampert
|
||||
By:
|
/s/
Mark N.
Lampert
|
President
|
||
Mark
N. Lampert
|
||||
President
|
BVF
INVESTMENTS, L.L.C.
|
BVF
INC.
|
|||
By:
|
BVF
Partners L.P., its manager
|
By:
|
/s/ Mark N.
Lampert
|
|
Mark
N. Lampert
|
||||
By:
|
BVF
Inc., its general partner
|
President
|
||
By:
|
/s/
Mark N.
Lampert
|
|||
Mark
N. Lampert
|
/s/ Mark N.
Lampert
|
|||
President
|
MARK
N. LAMPERT
|
BIOTECHNOLOGY
VALUE FUND, L.P.
|
INVESTMENT
10, L.L.C.
|
|||
By:
|
BVF
Partners L.P., its general partner
|
By:
|
BVF
Partners L.P., its investment manager
|
|
By:
|
BVF
Inc., its general partner
|
By:
|
BVF
Inc., its general partner
|
|
By:
|
/s/
Mark N.
Lampert
|
By:
|
/s/
Mark N.
Lampert
|
|
Mark
N. Lampert
|
Mark
N. Lampert
|
|||
President
|
President
|
BIOTECHNOLOGY
VALUE FUND II, L.P.
|
BVF
PARTNERS L.P.
|
|||
By:
|
BVF
Partners L.P., its general partner
|
By:
|
BVF
Inc., its general partner
|
|
By:
|
BVF
Inc., its general partner
|
By:
|
/s/ Mark N.
Lampert
|
|
Mark
N. Lampert
|
||||
By:
|
/s/
Mark N.
Lampert
|
President
|
||
Mark
N. Lampert
|
||||
President
|
BVF
INVESTMENTS, L.L.C.
|
BVF
INC.
|
|||
By:
|
BVF
Partners L.P., its manager
|
By:
|
/s/ Mark N.
Lampert
|
|
Mark
N. Lampert
|
||||
By:
|
BVF
Inc., its general partner
|
President
|
||
By:
|
/s/
Mark N.
Lampert
|
|||
Mark
N. Lampert
|
/s/ Mark N.
Lampert
|
|||
President
|
MARK
N. LAMPERT
|