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Form 3 ProQR Therapeutics N.V. For: Mar 18 Filed by: Platenburg Gerardus Johannes

March 18, 2026 4:10 PM
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
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
Platenburg Gerardus Johannes
(Last) (First) (Middle)
PROQR THERAPEUTICS N.V.
ZERNIKEDREEF 9
(Street)
LEIDEN 2333 CK
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026 		3. Issuer Name and Ticker or Trading Symbol
ProQR Therapeutics N.V. [ PRQR ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Scientific Officer
 5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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)
Ordinary Shares 824,388
D
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: 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
Share Option (Right to Buy) (1) 12/31/2026 Ordinary Shares 61,453 4.9 D
Share Option (Right to Buy) (1) 12/31/2027 Ordinary Shares 71,409 3.3 D
Share Option (Right to Buy) (1) 12/31/2028 Ordinary Shares 17,878 15.78 D
Share Option (Right to Buy) (1) 12/31/2029 Ordinary Shares 141,369 9.91 D
Share Option (Right to Buy) (1) 12/31/2030 Ordinary Shares 79,033 4.2 D
Share Option (Right to Buy) (1) 02/29/2032 Ordinary Shares 77,353 1.02 D
Share Option (Right to Buy) (1) 04/30/2032 Ordinary Shares 172,603 0.67 D
Share Option (Right to Buy) (2) 12/31/2032 Ordinary Shares 152,000 3.41 D
Share Option (Right to Buy) (3) 12/31/2033 Ordinary Shares 164,715 1.98 D
Share Option (Right to Buy) (4) 12/31/2034 Ordinary Shares 159,358 2.65 D
Share Option (Right to Buy) (5) 12/31/2035 Ordinary Shares 186,139 2.02 D
Explanation of Responses:
1. Fully vested.
2. 25% of the shares subject to such option vest and become exercisable on January 1, 2024, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.
3. 25% of the shares subject to such option vest and become exercisable on January 1, 2025, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.
4. 25% of the shares subject to such option vest and become exercisable on January 1, 2026, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.
5. 25% of the shares subject to such option vest and become exercisable on January 1, 2027, and the remaining 75% vest in 12 substantially equal quarterly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date.
Remarks:
Exhibit 24 - Power of Attorney
/s/ Pieter Erik de Ridders, Attorney-in-Fact 03/18/2026
** Signature of Reporting Person Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

ATTACHMENTS / EXHIBITS

EXHIBIT 24

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