Sec Form 4 Filing - Sides David William @ NEXTGEN HEALTHCARE, INC. - 2023-11-09

FORM 4 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 Sides David William 2. Issuer Name and Ticker or Trading Symbol NEXTGEN HEALTHCARE, INC. [ NXGN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) 18111 VON KARMAN AVENUE, SUITE 600 3. Date of Earliest Transaction (MM/DD/YY) 11/09/2023 (Street) IRVINE, CA92612 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 11/09/2023 D 605,540 ( 1 ) D 0 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 Performance Stock Units ( 2 ) ( 3 ) 11/09/2023 D 381,059 ( 2 )( 3 ) ( 2 )( 3 ) Common Stock 381,059 ( 2 ) ( 3 ) 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Sides David William 18111 VON KARMAN AVENUE, SUITE 600 IRVINE, CA92612 X President and CEO Signatures /s/ Jeffrey D. Linton, Attorney-in-Fact for David Sides 11/13/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 295,300 outstanding unvested shares of restricted stock. ( 2 )Pursuant to the Agreement and Plan of Merger, dated September 5, 2023, by and among the Issuer, Next Holdco Co., LLC ("Next Holdco") and Next Merger Sub, Inc. ("Merger Sub"), the Issuer became a wholly owned subsidiary of Next Holdco upon consummation of the merger with Merger Sub on November 9, 2023 (the "Effective Time"). At the Effective Time: (a) each of the Issuer's outstanding shares of common stock, each outstanding restricted stock unit and each outstanding deferred stock unit was cancelled and automatically converted into the right to receive $23.95 in cash; (b) each of the Issuer's outstanding unexercised stock options, whether vested or unvested, was cancelled and converted into the right to receive $23.95 in cash less the applicable per share exercise price; and (c) each of the Issuer's outstanding performance stock units was cancelled and converted into the right to receive $23.95 ( 3 )(Continued from footnote 2) (with respect to the Issuer shares underlying the portion of such award which had vested), and, with respect to any portion of such award the vesting of which remained subject to achievement of performance objectives as of October 4, 2023, $23.95 for each Issuer share underlying the portion of the award that would vest as a result of the Merger in accordance with the terms and conditions of the applicable award agreement, which for the units granted in 2020 assumed performance achievement at the "maximum" level; for the units granted in 2021, assumed performance achievement above "target" with partial achievement of the next stock price hurdle; and for the units granted in 2022, assumed performance achievement at 140% of the "target" level.

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

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