Mo Qatanani - 23 Feb 2026 Form 4 Insider Report for Scholar Rock Holding Corp (SRRK)

Reporting relationship: CHIEF SCIENTIFIC OFFICER
Issuer ticker: SRRK
Reported as of: 23 Feb 2026
Net transaction value: -$399,351
SEC form: 4
Accepted by SEC: 25 Feb 2026, 17:55:24 UTC
Prior SEC filing: 19 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Junlin Ho, Attorney-in-Fact for Mo Qatanani

Key filing fact

Mo Qatanani filed Form 4 for Scholar Rock Holding Corp (SRRK) on 25 Feb 2026.

Key facts

This page summarizes Mo Qatanani's Form 4 filing for Scholar Rock Holding Corp (SRRK).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 25 Feb 2026, 17:55.

Change

Previous filing in this sequence was filed on 19 Feb 2026.
Current net transaction value: -$399,351.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001980298 Primary reporting owner

Qatanani Mo

Relationship: CHIEF SCIENTIFIC OFFICER
Address: 301 BINNEY STREET, CAMBRIDGE
Signature: /s/ Junlin Ho, Attorney-in-Fact for Mo Qatanani
Signature date: 25 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SRRK transaction

Common Stock

Sale

Transaction value: $348,640
Shares: -7,427
Change %: -6.9%
Price: $46.94
Shares after: 99,502
Date: 23 Feb 2026
Ownership: Direct
Footnotes: F1, F2, F3

SRRK transaction

Common Stock

Sale

Transaction value: $41,015
Shares: -857
Change %: -0.86%
Price: $47.86
Shares after: 98,645
Date: 23 Feb 2026
Ownership: Direct
Footnotes: F1, F4, F5

SRRK transaction

Common Stock

Sale

Transaction value: $9,696
Shares: -200
Change %: -0.2%
Price: $48.48
Shares after: 98,445
Date: 23 Feb 2026
Ownership: Direct
Footnotes: F1, F6, F7

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 7 footnotes

Footnote F1

This transaction was effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.52 to $47.48, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

Footnote F3

Consists of 1,057 shares of common stock and 98,445 RSUs.

Footnote F4

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $47.55 to $48.19, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

Footnote F5

Consists of 200 shares of common stock and 98,445 RSUs.

Footnote F6

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.30 to $48.66, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

Footnote F7

Consists of 98,445 RSUs.