Sec Form 3 Filing - SLONIN JONATHAN @ Pacira BioSciences, Inc. - 2023-12-06

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP 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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1. Name and Address of Reporting Person SLONIN JONATHAN 2. Issuer Name and Ticker or Trading Symbol Pacira BioSciences, Inc. [ PCRX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Medical Officer (Last) (First) (Middle) C/O PACIRA BIOSCIENCES, INC., 5401 WEST KENNEDY BOULEVARD, SUITE 890 3. Date of Earliest Transaction (MM/DD/YY) 12/06/2023 (Street) TAMPA, FL33609 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 45,884.94 ( 1 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (Right to Buy) $ 38.74 ( 2 ) 06/14/2033 Common Stock 27,500 D Stock Option (Right to Buy) $ 59.39 ( 2 ) 06/08/2032 Common Stock 24,800 D Stock Option (Right to Buy) $ 60.79 ( 2 ) 08/03/2031 Common Stock 10,000 D Stock Option (Right to Buy) $ 60.96 ( 2 ) 06/09/2031 Common Stock 14,137 D Stock Option (Right to Buy) $ 52.37 ( 2 ) 07/02/2030 Common Stock 35,500 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SLONIN JONATHAN C/O PACIRA BIOSCIENCES, INC. 5401 WEST KENNEDY BOULEVARD, SUITE 890 TAMPA, FL33609 Chief Medical Officer Signatures /s/ Kristen Williams, Attorney-in-Fact 12/07/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 27,452 unvested restricted stock units. The unvested restricted stock units vest as follows: (i) 10,950 restricted stock units that vest in four equal annual installments on June 3, 2024, June 3, 2025, June 3, 2025 and June 3, 2026; (ii) 7,425 restricted stock units that vest in three equal annual installments on June 3, 2024, June 3, 2025 and June 3, 2026; (iii) 2,500 restricted stock units that vest in two equal annual installments on August 1, 2024 and August 1, 2025; (iv) 2,827 restricted stock units that vest in two equal annual installments on June 3, 2024 and June 3, 2025; and (v) 3,750 restricted stock units that vest on July 1, 2024; 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.

Remarks: Although the reporting person was previously deemed to be an "officer" of the issuer for purposes of Section 16, the issuer's board of directors (the "board") determined, at a meeting held on June 14, 2023, that the reporting person should no longer be designated a Section 16 "officer." However, in connection with his expected performance of certain significant policy-making functions for the issuer as a result of his promotion to Chief Medical Officer on December 5, 2023, the board determined, at a meeting held on December 6, 2023, that the reporting person should once again be designated a Section 16 "officer" of the issuer. As a result, the reporting person is filing this Initial Statement of Beneficial Ownership of Securities on Form 3.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(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).

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