Scholar Rock (SRRK) CSO trades under 10b5-1 plan on January 14 2026
Rhea-AI Filing Summary
Scholar Rock Holding Corp’s chief scientific officer, Mo Qatanani, reported option exercises and a share sale in company stock. On January 14, 2026, Qatanani exercised several stock options covering a total of 13,112 shares of common stock at exercise prices of $7.62, $10, $15.75, $18.08, and $35.15 per share.
On the same day, Qatanani sold 13,112 shares of common stock at a weighted average price of $45.1961 per share under a Rule 10b5-1 trading plan adopted on March 31, 2025. After these transactions, Qatanani directly holds 108,964 restricted stock units (RSUs) and still has multiple stock options outstanding with unvested portions of 961, 11,250, 47,143, and 32,142 shares, subject to continued service-based vesting.
Positive
- None.
Negative
- None.
Insights
Routine planned option exercises and sale by Scholar Rock’s CSO under a Rule 10b5-1 plan.
The filing shows that Mo Qatanani, chief scientific officer of Scholar Rock Holding Corp, exercised multiple employee stock options on January 14, 2026, converting a total of 13,112 options into common shares at exercise prices between $7.62 and $35.15. These are standard option exercises, with one grant fully exhausted and others retaining significant unvested balances.
On the same date, Qatanani sold 13,112 shares of common stock at a weighted average price of $45.1961 per share, with sales executed across a range of $45.00 to $45.45. The filing specifies that this activity occurred pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025, indicating the trades were pre-arranged. After the transactions, Qatanani directly holds 108,964 RSUs plus unvested option positions of 961, 11,250, 47,143, and 32,142 shares, which vest quarterly contingent on continued service.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) | 1,407 | $0.00 | -- |
| Exercise | Stock Option (Right to Buy) | 321 | $0.00 | -- |
| Exercise | Stock Option (Right to Buy) | 2,813 | $0.00 | -- |
| Exercise | Stock Option (Right to Buy) | 5,893 | $0.00 | -- |
| Exercise | Stock Option (Right to Buy) | 2,678 | $0.00 | -- |
| Exercise | Common Stock | 1,407 | $18.08 | $25K |
| Exercise | Common Stock | 321 | $7.62 | $2K |
| Exercise | Common Stock | 2,813 | $10.00 | $28K |
| Exercise | Common Stock | 5,893 | $15.75 | $93K |
| Exercise | Common Stock | 2,678 | $35.15 | $94K |
| Sale | Common Stock | 13,112 | $45.1961 | $593K |
Footnotes (1)
- This transaction was effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025. Consists of 1,407 shares of common stock and 108,964 RSUs. Consists of 1,728 shares of common stock and 108,964 RSUs. Consists of 4,541 shares of common stock and 108,964 RSUs. Consists of 10,434 shares of common stock and 108,964 RSUs. Consists of 13,112 shares of common stock and 108,964 RSUs. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.00 to $45.45, inclusive. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. Consists of 108,964 RSUs. No shares remain unvested under this stock option. 961 shares remain unvested under this stock option. The first vesting event occurred on January 5, 2023 and the remainder vests in fifteen quarterly installments thereafter; provided the reporting person continues to have a service relationship with the Issuer on such vesting date. 11,250 shares remain unvested under this stock option. The first vesting event occurred on April 1, 2023 and the remainder vests in fifteen quarterly installments thereafter; provided the reporting person continues to have a service relationship with the Issuer on such vesting date. 47,143 shares remain unvested under this stock option. The first vesting event occurred on April 1, 2024 and the remainder vests in fifteen quarterly installments thereafter; provided the reporting person continues to have a service relationship with the Issuer on such vesting date. 32,142 shares remain unvested under this stock option. The first vesting event occurred on April 1, 2025 and the remainder vests in fifteen quarterly installments thereafter; provided the reporting person continues to have a service relationship with the Issuer on such vesting date.
FAQ
Who is the insider in Scholar Rock (SRRK)’s Form 4 filing and what is their role?
The insider is Mo Qatanani, who serves as Chief Scientific Officer of Scholar Rock Holding Corp and is filing as an officer of the company.
What transactions did Scholar Rock (SRRK) CSO Mo Qatanani report on January 14, 2026?
On January 14, 2026, Qatanani exercised stock options covering 13,112 shares of common stock and then sold 13,112 shares of common stock in the open market.
Was the Scholar Rock (SRRK) insider sale made under a Rule 10b5-1 trading plan?
Yes. The filing states that the transaction was effected by the reporting person pursuant to a Rule 10b5-1 trading plan adopted on March 31, 2025, indicating the trades were pre-scheduled.
What stock options remain outstanding for the Scholar Rock (SRRK) CSO after the Form 4 transactions?
After the exercises, one option grant has no shares remaining unvested. Other grants still have unvested portions of 961, 11,250, 47,143, and 32,142 shares, each vesting in quarterly installments contingent on Qatanani maintaining a service relationship with Scholar Rock.
What does the weighted average sale price disclosure mean in this Scholar Rock (SRRK) Form 4?
The filing explains that the reported sale price of $45.1961 per share is a weighted average. The 13,112 shares were sold in multiple trades at prices between $45.00 and $45.45, and detailed breakdowns can be provided to SEC staff upon request.