Buy4

Scholar Rock Holding Corp

SRRK

Total Value

$12.0M

Net $12.0M bought

Filing Date

Oct 27, 2026

6 transactions

Purchases

$12.0M

6 transactions

Trade Summary

On Oct 23, 2026 through Oct 26, 2026, AKKARAJU SRINIVAS, Insider, purchased $12.0M of Scholar Rock Holding Corp (SRRK) across 6 transactions. The filing covers Common Stock and reflects net buying of $12.0M. Reported prices ranged from $41.31 to $41.82. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

SRRK daily price with the insider's purchase marked at $41.45.

Bought near the 6-month low · the stock trades 5% higher today.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: AKKARAJU SRINIVAS
Role: Insider
Location: PALO ALTO, CA

Filing Details

Filing Date: Oct 27, 2026
Transaction Date: Oct 23, 2026
Accession Number: 0001253170-26-000014
Form Type: 4
Net Trading Amount: $12.0M

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 23, 2026	Common Stock	47,000	$41.31	Purchase	$1.9M
Oct 23, 2026	Common Stock	94,000	$41.31	Purchase	$3.9M
Oct 23, 2026	Common Stock	500	$41.82	Purchase	$20.9K
Oct 23, 2026	Common Stock	1,000	$41.82	Purchase	$41.8K
Oct 26, 2026	Common Stock	48,988	$41.59	Purchase	$2.0M
Oct 26, 2026	Common Stock	97,982	$41.59	Purchase	$4.1M

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Footnotes

(F1)The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $40.77 to $41.75 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.
(F2)The shares held by Samsara BioCapital LP ("Samsara LP") prior to the reported transaction reflect the disposition of 83,585 shares in which the Reporting Person had no pecuniary interest. The disposition of such shares by Samsara LP did not involve a change in the Reporting Person's beneficial ownership of such shares and, accordingly, was exempt from reporting under Section 16.
(F3)Securities are directly held by Samsara LP. Samsara BioCapital GP, LLC ("Samsara LLC") is the general partner of Samsara LP and may be deemed to beneficially own the securities held by Samsara LP. The Reporting Person has voting and investment power over the securities held by Samsara LP and, accordingly, may be deemed to beneficially own the securities held by Samsara LP. The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein.
(F4)Securities are directly held by Samsara Opportunity Fund, L.P. ("Samsara Opportunity Fund"). Samsara Opportunity Fund GP, LLC ("Samsara Opportunity GP") is the general partner of Samsara Opportunity Fund and may be deemed to beneficially own the securities held by Samsara Opportunity Fund. The Reporting Person has voting and investment power over the securities held by Samsara Opportunity Fund and, accordingly, may be deemed to beneficially own the securities held by Samsara Opportunity Fund. The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein.
(F5)The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $41.78 to $41.85 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.
(F6)The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $41.15 to $41.93 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

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
Estimated average burden
hours per response:			0.5

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^*

AKKARAJU SRINIVAS

(Last)

(First)

(Middle)

628 MIDDLEFIELD ROAD

(Street)

PALO ALTO

94301

(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
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/23/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/23/2026		P		47,000	A	$41.31⁽¹⁾	6,331,029⁽²⁾	I	By Samsara BioCapital, L.P.⁽³⁾
Common Stock	10/23/2026		P		94,000	A	$41.31⁽¹⁾	624,038	I	By Samsara Opportunity Fund, L.P.⁽⁴⁾
Common Stock	10/23/2026		P		500	A	$41.82⁽⁵⁾	6,331,529	I	By Samsara BioCapital, L.P.⁽³⁾
Common Stock	10/23/2026		P		1,000	A	$41.82⁽⁵⁾	625,038	I	By Samsara Opportunity Fund, L.P.⁽⁴⁾
Common Stock	10/26/2026		P		48,988	A	$41.59⁽⁶⁾	6,380,517	I	By Samsara BioCapital, L.P.⁽³⁾
Common Stock	10/26/2026		P		97,982	A	$41.59⁽⁶⁾	723,020	I	By Samsara Opportunity Fund, L.P.⁽⁴⁾
Common Stock								27,971	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 (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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $40.77 to $41.75 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

2. The shares held by Samsara BioCapital LP ("Samsara LP") prior to the reported transaction reflect the disposition of 83,585 shares in which the Reporting Person had no pecuniary interest. The disposition of such shares by Samsara LP did not involve a change in the Reporting Person's beneficial ownership of such shares and, accordingly, was exempt from reporting under Section 16.

3. Securities are directly held by Samsara LP. Samsara BioCapital GP, LLC ("Samsara LLC") is the general partner of Samsara LP and may be deemed to beneficially own the securities held by Samsara LP. The Reporting Person has voting and investment power over the securities held by Samsara LP and, accordingly, may be deemed to beneficially own the securities held by Samsara LP. The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein.

4. Securities are directly held by Samsara Opportunity Fund, L.P. ("Samsara Opportunity Fund"). Samsara Opportunity Fund GP, LLC ("Samsara Opportunity GP") is the general partner of Samsara Opportunity Fund and may be deemed to beneficially own the securities held by Samsara Opportunity Fund. The Reporting Person has voting and investment power over the securities held by Samsara Opportunity Fund and, accordingly, may be deemed to beneficially own the securities held by Samsara Opportunity Fund. The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein.

5. The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $41.78 to $41.85 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

6. The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $41.15 to $41.93 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

	/s/ Srinivas Akkaraju	10/27/2026
	** 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.

Form 4 as rendered by the SEC from accession 0001253170-26-000014.

Scholar Rock Holding Corp

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4

Price at the Time of the Trade