SRRK (NASDAQ: SRRK) files Rule 144 notice to sell 5,446 shares via J.P. Morgan

Rhea-AI Filing Summary

SRRK submitted a Rule 144 notice to sell 5,446 common shares. The filing lists RSU-related sales of 261 shares dated 02/15/2026, 745 shares dated 03/15/2026, and 4,440 shares dated 06/15/2026. The broker listed is J.P. Morgan Securities LLC and the entry references 07/01/2026 and Nasdaq.

Insights

Securities Compliance Attorney

Rule 144 notice records planned resale of RSU-derived common shares.

Rule 144 notices disclose intended sales under resale exemptions; the filing lists three RSU settlement dates and specific share counts: 261, 745, and 4,440. The broker is named as J.P. Morgan Securities LLC.

Cash‑flow treatment and purchaser details are not shown in the excerpt; subsequent filing or trade reports would show actual transactions and timing.

Key Figures

Total shares listed: 5,446 shares RSU settlement 1: 261 shares RSU settlement 2: 745 shares +3 more

6 metrics

Total shares listed 5,446 shares Aggregate of listed RSU entries in the notice

RSU settlement 1 261 shares RSU dated 02/15/2026

RSU settlement 2 745 shares RSU dated 03/15/2026

RSU settlement 3 4,440 shares RSU dated 06/15/2026

Broker reference J.P. Morgan Securities LLC Broker listed on the notice (270 Park Avenue)

Listing reference 07/01/2026 Date appearing near Nasdaq reference in excerpt

Key Terms

Rule 144, RSU, Issuer

3 terms

Rule 144 regulatory

"144: Securities To Be Sold"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

RSU financial

"Common | 02/15/2026 | RSU | Issuer"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Issuer regulatory

"Common | 02/15/2026 | RSU | Issuer"

FAQ

What does SRRK's Rule 144 filing mean?

It notifies the market of an intended resale under Rule 144. The filing lists planned RSU-related sales of 261, 745, and 4,440 shares on the stated dates, with J.P. Morgan Securities LLC named as broker.

How many SRRK shares are listed for sale in the filing?

The filing lists a total of 5,446 shares described in the notice. These are shown as three RSU-related items: 261, 745, and 4,440 shares on the respective dates.

Does the filing confirm the shares were sold?

No. The notice reports intended resale quantities and dates; it does not confirm completion or trade counterparties. Actual sale execution would appear in separate trade reports or subsequent filings.

Who is the broker handling the planned resale for SRRK?

The broker listed in the excerpt is J.P. Morgan Securities LLC at 270 Park Avenue, New York. The filing ties the broker to the Rule 144 resale notice.

Are these RSUs or open‑market holdings for SRRK?

The entries are labeled RSU and tied to specific dates, indicating the shares derive from restricted stock unit settlements rather than an explicit open‑market block sale in this excerpt.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/01/2026 - 04:44 PM Accepted by SEC EDGAR 07/01/2026 - 04:44 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001983850
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Scholar Rock Holding Corp.
SEC File Number	001-38501
Address of Issuer	301 Binney Street, 3rd Floor Cambridge MASSACHUSETTS 02142
Phone	857-259-3860
Name of Person for Whose Account the Securities are To Be Sold	Katie Peng
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	J.P. Morgan Securities LLC 270 Park Avenue 10th Floor New York NY 10017	5446	298386	119828338	07/01/2026	Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/15/2026	RSU	Issuer			261	02/15/2026	NA
Common	03/15/2026	RSU	Issuer			745	03/15/2026	NA
Common	06/15/2026	RSU	Issuer			4440	06/15/2026	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	07/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/20/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Katie Peng.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)