Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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 * FLIER JEFFREY S. 2. Issuer Name and Ticker or Trading Symbol Scholar Rock Holding Corp [SRRK] 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) 301 BINNEY STREET 3. Date of Earliest Transaction (Month/Day/Year) 06/23/2025 (Street) CAMBRIDGE, MA 02142 4. If Amendment, Date 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 (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 06/23/2025 M 20,316(1) A $21.62 44,386(2) D Common Stock 06/23/2025 S 17,550(1) D $32.1571(3) 26,836(4) D Common Stock 06/23/2025 S 2,766(1) D $32.7358(5) 24,070(6) D Common Stock 06/23/2025 S 11,136(1) D $33.2092(7) 11,136 I By trust(8)

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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)

$21.62

06/23/2025

M(1)

20,316

(9)

06/22/2028

Common Stock

20,316

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
FLIER JEFFREY S. 301 BINNEY STREET CAMBRIDGE, MA 02142	X

Signatures

/s/ Junlin Ho, Attorney-in-Fact for Jeffrey S. Flier		06/25/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	This sale was effected pursuant to a Rule 10b5-1 trading plan adopted on February 27, 2025.
(2)	Consists of 36,754 shares of common stock and 7,632 restricted stock units (RSUs).
(3)	The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $31.645 to $32.609, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.
(4)	Consists of 19,204 shares of common stock and 7,632 RSUs.
(5)	The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.640 to $32.830, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.
(6)	Consists of 16,438 shares of common stock and 7,632 RSUs.
(7)	The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.830 to $33.790, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.
(8)	Represents shares owned directly by The Jeffrey S. Flier Family Trust - 2014, for which the Reporting Person's spouse, Eleftheria Maratos-Flier, and Samuel C. Sichko are trustees. The Reporting Person disclaims Section 16 beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.
(9)	No shares remain unvested under this stock option.

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