FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Miller Eric Alejandro 2. Date of Event Requiring Statement (Month/Day/Year) 11/02/2018 3. Issuer Name and Ticker or Trading Symbol ACADIA PHARMACEUTICALS INC [ACAD] (Last) (First) (Middle) C/O ACADIA PHARMACEUTICALS INC., 3611 VALLEY CENTRE DRIVE, SUITE 300 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Controller & PAO 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) SAN DIEGO, CA 92130 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 3,212 D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	  (1)	05/29/2024	Common Stock	7,500	$ 20.65	D	Â
Employee Stock Option (Right to Buy)	  (2)	01/25/2025	Common Stock	3,900	$ 32.28	D	Â
Employee Stock Option (Right to Buy)	  (3)	01/05/2026	Common Stock	6,615	$ 29.24	D	Â
Employee Stock Option (Right to Buy)	  (4)	03/07/2027	Common Stock	7,350	$ 36.54	D	Â
Employee Stock Option (Right to Buy)	  (5)	09/06/2027	Common Stock	9,187	$ 35.8	D	Â
Employee Stock Option (Right to Buy)	  (6)	04/06/2028	Common Stock	5,570	$ 16.5	D	Â
Employee Stock Option (Right to Buy)	  (7)	10/14/2028	Common Stock	3,342	$ 21.28	D	Â
Restricted Stock Units	  (8)	  (8)	Common Stock	1,671	$ (9)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Miller Eric Alejandro C/O ACADIA PHARMACEUTICALS INC. 3611 VALLEY CENTRE DRIVE, SUITE 300 SAN DIEGO, CA 92130	Â	Â	  Controller & PAO	Â

Signatures

/s/ Eric Alejandro Miller		11/09/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This option is fully vested and exercisable.
(2)	25% of the shares subject to the Stock Option vested and became exercisable on January 1, 2016, and the remaining shares vest and become exercisable in 36 equal monthly installments thereafter.
(3)	25% of the shares subject to the Stock Option vested and became exercisable on January 1, 2017, and the remaining shares vest and become exercisable in 36 equal monthly installments thereafter.
(4)	25% of the shares subject to the Stock Option vested and became exercisable on March 8, 2018, and the remaining shares vest and become exercisable in 36 equal monthly installments thereafter.
(5)	25% of the shares subject to the Stock Option vested and became exercisable on September 7, 2018, and the remaining shares vest and become exercisable in 36 equal monthly installments thereafter.
(6)	25% of the shares subject to the Stock Option vest and become exercisable on April 7, 2019, and the remaining shares vest and become exercisable in 36 equal monthly installments thereafter.
(7)	25% of the shares subject to the Stock Option vest and become exercisable on October 15, 2019, and the remaining shares vest and become exercisable in 36 equal monthly installments thereafter.
(8)	The restricted stock units vest in four equal annual installments beginning October 15, 2019.
(9)	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

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