[Form 4] Scholar Rock Holding Corp Insider Trading Activity

Rhea-AI Filing Summary

David Hallal, who serves as Chief Executive Officer and a Director of Scholar Rock Holding Corp (SRRK), transferred 205,000 shares of the issuer's common stock to the Hallal Family Irrevocable Trust - 2012 on 10/08/2025 for no consideration (reported price $0). The filing notes the reporting person’s spouse is a trustee of the trust and that he disclaims beneficial ownership of the transferred shares except to the extent of any pecuniary interest.

After the reported transfer, the filing shows the reporting person beneficially owns 1,599,095 shares, consisting of 99,095 shares of common stock and 1,500,000 restricted stock units. The statement was signed by an attorney-in-fact on 10/09/2025.

Positive

• Clear disclosure of the transfer date 10/08/2025 and transfer amount 205,000 shares
• Reported remaining beneficial interest of 1,599,095 shares (99,095 common shares plus 1,500,000 RSUs) provides transparency on ongoing equity exposure

Negative

• Direct holdings decreased by 205,000 shares following the transfer
• Potential voting/economic uncertainty until the 1,500,000 RSUs vest or convert (no vesting schedule provided)

Insights

Corporate Governance Advisor

TL;DR: A routine estate-planning transfer reduces direct holdings but leaves significant equity exposure via RSUs.

The transfer of 205,000 common shares to a family irrevocable trust for no consideration is consistent with personal estate or family-planning actions and is coded as a gift-like transfer (price $0). The reporting person retains a pecuniary interest only as disclosed, and the spouse serves as a trustee, which the filing explicitly notes.

This change reduces directly held shares while leaving total beneficial exposure at 1,599,095 shares (including 1,500,000 restricted stock units). Monitor vesting schedules for the 1,500,000 RSUs and any future Form 4s that would report exercisable or vested conversions, as those determine near-term voting and economic interest.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hallal David

(Last) (First) (Middle)

301 BINNEY STREET

(Street)

CAMBRIDGE MA 02142

(City) (State) (Zip)

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
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/08/2025

4. 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 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	10/08/2025		G(1)		205,000	D	$0	1,599,095(2)	D
Common Stock								205,000	I	By trust(1)

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. On October 8, 2025, the Reporting Person transferred 205,000 shares of the Issuer's Common Stock to the Hallal Family Irrevocable Trust - 2012 dated November 19, 2012 (the "Hallal Trust") for no consideration. The Reporting Person's spouse serves as a trustee of the Hallal Trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

2. Consists of 99,095 shares of Common Stock and 1,500,000 restricted stock units.

	/s/ Junlin Ho, Attorney-in-Fact for David Hallal	10/09/2025
	** 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.

FAQ

What exactly did Scholar Rock CEO David Hallal report on Form 4 (SRRK)?

He reported transferring 205,000 shares of common stock to the Hallal Family Irrevocable Trust - 2012 on 10/08/2025 for no consideration (price $0).

How many Scholar Rock (SRRK) shares does David Hallal beneficially own after the transfer?

The filing lists 1,599,095 shares of beneficial ownership, made up of 99,095 common shares and 1,500,000 restricted stock units.

Does David Hallal retain control over the transferred shares?

The filing states his spouse serves as trustee and he disclaims beneficial ownership of the transferred shares except to the extent of any pecuniary interest; no further control claims are made.

Was any cash consideration paid for the transferred shares?

No. The transaction price is reported as $0.

When was the Form 4 signed and filed for this transaction?

The signature block shows the form was signed by an attorney-in-fact on 10/09/2025.