Caryn Parlavecchio - 17 Feb 2026 Form 4 Insider Report for Scholar Rock Holding Corp (SRRK)

Role: CHRO
Signature: /s/ Junlin Ho, Attorney-in-Fact for Caryn Parlavecchio
Issuer symbol: SRRK
Transactions as of: 17 Feb 2026
Net transactions value: -$420,382
Form type: 4
Filing time: 19 Feb 2026, 16:30:07 UTC
Previous filing: 11 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Parlavecchio Caryn	CHRO	301 BINNEY STREET, CAMBRIDGE	/s/ Junlin Ho, Attorney-in-Fact for Caryn Parlavecchio	19 Feb 2026	0001922346

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SRRK	Common Stock	Sale	$420,382	-9,035	-5.1%	$46.53	169,087	17 Feb 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the number of shares required to be sold by the Reporting Person to cover the tax withholding obligation in connection with the vesting of restricted stock units ("RSU") on February 15, 2026. This sale is mandated by the Issuer's election under its equity incentive plans to require the reporting person to fund this tax withholding obligation by completing a "sell to cover" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the Reporting Person. The shares vested pursuant to awards that were granted on February 13, 2023 and March 10, 2025. Each RSU represents the contingent right to receive upon vesting of the RSU, one share of the Issuer's common stock. The shares subject to these RSU awards vest annually over four years, subject to a continued service relationship with the Issuer on the applicable vesting date.
F2	(2) Consists of 86,859 shares of common stock and 82,228 RSUs.

Content

Represents the number of shares required to be sold by the Reporting Person to cover the tax withholding obligation in connection with the vesting of restricted stock units ("RSU") on February 15, 2026. This sale is mandated by the Issuer's election under its equity incentive plans to require the reporting person to fund this tax withholding obligation by completing a "sell to cover" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the Reporting Person. The shares vested pursuant to awards that were granted on February 13, 2023 and March 10, 2025. Each RSU represents the contingent right to receive upon vesting of the RSU, one share of the Issuer's common stock. The shares subject to these RSU awards vest annually over four years, subject to a continued service relationship with the Issuer on the applicable vesting date.

(2) Consists of 86,859 shares of common stock and 82,228 RSUs.