Form 4: Scholar Rock CSO Sells Shares Under 10b5-1 Plan

Scholar Rock Holding Corp's Chief Scientific Officer, Mo Qatanani, sold a total of 14,898 shares of common stock for approximately $695,861 under a pre-arranged 10b5-1 trading plan.

Summary

• Mo Qatanani, Chief Scientific Officer of Scholar Rock Holding Corp (SRRK), reported transactions on January 22, 2026.
• Qatanani sold a total of 14,898 shares of common stock in two separate transactions.
• The first transaction involved the sale of 2,119 shares at a weighted average price of $45.8655 per share, with prices ranging from $45.43 to $46.42.
• The second transaction involved the sale of 12,779 shares at a weighted average price of $46.8541 per share, with prices ranging from $46.43 to $47.31.
• These sales were executed pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025.
• Following these transactions, Mo Qatanani beneficially owns 85,660 Restricted Stock Units (RSUs).

Sentiment

Score: 4

Explanation: The Chief Scientific Officer sold a significant number of shares, which can be perceived negatively by the market. However, the sale was pre-scheduled under a Rule 10b5-1 plan, mitigating the implication that it was based on new, adverse material information.

Negatives

• Chief Scientific Officer Mo Qatanani sold a significant number of shares (14,898) of common stock.
• Insider selling, even under a 10b5-1 plan, can sometimes be perceived by the market as a lack of confidence, though the pre-scheduled nature mitigates this.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

This filing reports a routine insider transaction and does not provide information directly related to broader industry trends or competitive landscape.

Stakeholder Impact

• Shareholders: May interpret the insider sale as a signal, though the 10b5-1 plan suggests it is a pre-planned liquidity event rather than a reaction to new company developments.

Key Dates

Recommendation

While the Chief Scientific Officer sold a notable number of shares, the transaction was executed under a pre-arranged 10b5-1 trading plan, which suggests the sale was not based on new, material non-public information. Investors should monitor future insider activity and company performance rather than reacting solely to this scheduled transaction.

Keywords

Scholar Rock, SRRK, Mo Qatanani, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, Chief Scientific Officer