Katie Peng - 01 Jul 2026 Form 4 Insider Report for Scholar Rock Holding Corp (SRRK)

Reporting relationship: Director
Issuer ticker: SRRK
Reported as of: 01 Jul 2026
Net transaction value: -$293,405
SEC form: 4
Accepted by SEC: 06 Jul 2026, 16:30:19 UTC
Prior SEC filing: 23 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Junlin Ho, attorney-in-fact for Katie Peng

Key filing fact

Katie Peng filed Form 4 for Scholar Rock Holding Corp (SRRK) on 06 Jul 2026.

Key facts

This page summarizes Katie Peng's Form 4 filing for Scholar Rock Holding Corp (SRRK).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 06 Jul 2026, 16:30.

Change

Previous filing in this sequence was filed on 23 Jun 2026.
Current net transaction value: -$293,405.

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 0001983850 Primary reporting owner

Peng Katie

Relationship: Director
Address: 301 BINNEY STREET, CAMBRIDGE
Signature: /s/ Junlin Ho, attorney-in-fact for Katie Peng
Signature date: 06 Jul 2026

Reported non-derivative transactions

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

SRRK transaction

Common Stock

Sale

Transaction value: $160,037
Shares: -2,988
Change %: -7.5%
Price: $53.56
Shares after: 36,759
Date: 01 Jul 2026
Ownership: Direct
Footnotes: F1, F2, F3

SRRK transaction

Common Stock

Sale

Transaction value: $132,214
Shares: -2,437
Change %: -6.6%
Price: $54.25
Shares after: 34,322
Date: 01 Jul 2026
Ownership: Direct
Footnotes: F1, F4, F5

SRRK transaction

Common Stock

Sale

Transaction value: $1,154
Shares: -21
Change %: -0.06%
Price: $54.96
Shares after: 34,301
Date: 01 Jul 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 sale was effected pursuant to a Rule 10b-5-1 trading plan adopted on March 20, 2026 to cover tax obligations upon the vesting and settlement of restricted stock units (RSUs).

Footnote F2

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $52.970 to $53.965, 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 23,958 shares of common stock and 12,801 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 $53.967 to $54.815, 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 21,521 shares of common stock and 12,801 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 $54.860 to $55.016, 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 21,500 shares of common stock and 12,801 RSUs.