Ownership Submission
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 *
  WINSTON ROY
 2. Date of Event Requiring Statement (Month/Day/Year)
08/29/2018		 3. Issuer Name and Ticker or Trading Symbol
Pacira Pharmaceuticals, Inc. [PCRX]
(Last)
(First)
(Middle)
C/O PACIRA PHARMACEUTICALS, INC., 5 SYLVAN WAY, SUITE 300		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Clinical Officer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PARSIPPANY, NJ 07054		 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 16,500 (1)
D
 

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
Stock Option (Right to Buy)   (2) 06/13/2028 Common Stock 37,500 $ 38.35 D  
Stock Option (Right to Buy)   (2) 05/02/2028 Common Stock 20,000 $ 34.375 D  
Stock Option (Right to Buy)   (2) 01/03/2028 Common Stock 10,000 $ 46.35 D  
Stock Option (Right to Buy)   (2) 06/14/2027 Common Stock 6,000 $ 44.2 D  
Stock Option (Right to Buy)   (2) 05/02/2027 Common Stock 25,000 $ 48.15 D  
Stock Option (Right to Buy)   (2) 02/02/2027 Common Stock 10,000 $ 41.9 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
WINSTON ROY
C/O PACIRA PHARMACEUTICALS, INC.
5 SYLVAN WAY, SUITE 300
PARSIPPANY, NJ 07054		       Chief Clinical Officer  

Signatures

/s/ Kristen Williams, Attorney-in-Fact 09/07/2018
**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) Includes 8,500 unvested restricted stock units. The unvested restricted stock units vest as follows: (i) 2,250 restricted stock units that vest in three equal annual installments on June 3, 2019, June 3, 2020 and June 3, 2021, and (ii) 6,250 restricted stock units that vest in four equal annual installments on June 3, 2019, June 3, 2020, June 3, 2021 and June 3, 2022, in each case provided that the reporting person remains in continuous service with the issuer as of each vesting date. Each restricted stock unit represents the contingent right to receive one share of the issuer's common stock.
(2) The stock option vests and becomes exercisable as to 25% of the option shares on the first anniversary of the grant date, and vests as to the remaining shares in successive equal quarterly installments over the subsequent three years, provided that the reporting person remains in continuous service with the issuer as of each vesting date.

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