Sec Form 4 Filing - POST LEONARD E @ uniQure N.V. - 2023-06-13

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 POST LEONARD E 2. Issuer Name and Ticker or Trading Symbol uniQure N.V. [ QURE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O UNIQURE N.V., PAASHEUVELWEG 25A 3. Date of Earliest Transaction (MM/DD/YY) 06/13/2023 (Street) AMSTERDAM, P711058BP 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 Ordinary Shares 06/13/2023 A 8,700 ( 1 ) A $ 0 20,512 D Ordinary Shares 06/16/2023 S( 3 ) 2,291 ( 3 ) D $ 18.83 ( 4 ) 18,221 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) $ 20.18 06/13/2023 A 17,060 ( 2 ) 06/13/2033 Ordinary Shares 17,060 $ 0 17,060 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other POST LEONARD E C/O UNIQURE N.V. PAASHEUVELWEG 25A AMSTERDAM, P711058BP X Signatures /s/ Christian Klemt, Attorney-in-Fact 06/20/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents restricted share units granted to the Reporting Person under the Issuer's 2014 Share Incentive Plan, as amended and restated. Each restricted share unit represents the contingent right to receive one Ordinary Share. The restricted share units vest 100% on the first anniversary of the date of grant, subject to the Reporting Person's continued relationship with the Issuer through such date. ( 2 )The Stock Option vests 100% on the first anniversary of the date of grant, subject to the Reporting Person's continued relationship with the Issuer through such date. ( 3 )As required by the relevant Restricted Share Unit Agreement, the Reporting Person sold the Ordinary Shares and remitted the proceeds therefrom to the Issuer to satisfy estimated tax withholding obligations triggered by the vesting of restricted share units. ( 4 )The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $18.81 to $18.94. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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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