Form 4: SRRK Director Sells Stock for Tax Obligations

Scholar Rock Holding Corp Director Katie Peng sold 1,006 shares of common stock to cover tax obligations related to RSU vesting.

Summary

• Director Katie Peng of Scholar Rock Holding Corp [SRRK] sold a total of 1,006 shares of common stock.
• The sales occurred on December 16, 2025, under a Rule 10b5-1 trading plan adopted on November 20, 2024.
• The purpose of the sales was to cover tax obligations arising from the vesting and settlement of restricted stock units (RSUs).
• The shares were sold in two transactions: 726 shares at a weighted average price of $43.8761 (ranging from $43.39 to $44.38) and 280 shares at a weighted average price of $44.6344 (ranging from $44.39 to $45.23).
• Director Katie Peng's total beneficial ownership decreased by 280 shares, from an initial 33,188 shares (comprising 15,124 common stock and 18,064 RSUs) to a final 32,908 shares (comprising 14,844 common stock and 18,064 RSUs) following these transactions.

Sentiment

Score: 5

Explanation: Neutral. The transaction is a routine insider sale for tax purposes, pre-scheduled under a 10b5-1 plan, and does not reflect a discretionary decision to sell based on company performance or outlook.

Future Outlook

NA

Management Comments

• Sales were effected pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2024, to cover tax obligations upon the vesting and settlement of restricted stock units.

Industry Context

NA

Stakeholder Impact

• Shareholders: A minor reduction in director ownership (280 net shares), but the sale of 1,006 shares was primarily for tax purposes related to RSU vesting and pre-scheduled, which typically does not signal a change in management's confidence or company fundamentals.
• Employees: No direct impact.
• Customers: No direct impact.
• Suppliers: No direct impact.
• Creditors: No direct impact.

Key Dates

Recommendation

The sale by Director Katie Peng is a standard, pre-scheduled transaction under a Rule 10b5-1 plan to cover tax obligations from RSU vesting. Such routine sales are common for executives and generally do not indicate a change in the company's fundamental prospects or warrant a shift in investment strategy. Therefore, a 'hold' recommendation is appropriate as this filing provides no new information to alter the existing investment thesis.

Keywords

Scholar Rock Holding Corp, SRRK, Katie Peng, Director, Insider Sale, Form 4, Rule 10b5-1, Restricted Stock Units, RSU, Tax Obligations, Biotechnology, Pharmaceuticals