Form 4: Shattuck Labs Officer Sells Shares for Tax Obligations

Stephen Stout, General Counsel of Shattuck Labs, reported the disposition of 593 common shares to cover tax withholding on January 25, 2026.

Summary

• Stephen Stout, General Counsel, Corporate Secretary, and Chief Ethics and Compliance Officer of Shattuck Labs, Inc. (STTK), reported a transaction involving the company's common stock.
• On January 25, 2026, Stout disposed of 593 shares of Shattuck Labs common stock.
• The disposition was made at a price of $4.15 per share.
• This transaction was coded as 'F', indicating a disposition to the issuer to satisfy tax withholding obligations.
• Following this transaction, Stout beneficially owns 81,529 shares of Shattuck Labs common stock directly.
• The transaction was made pursuant to a Rule 10b5-1 plan, which allows insiders to set up pre-planned transactions to avoid accusations of trading on material non-public information.

Sentiment

Score: 5

Explanation: Neutral. This is a routine, non-discretionary transaction for tax purposes, common for insiders receiving equity compensation. It does not reflect a change in management's view of the company's prospects or indicate any new positive or negative developments for the company.

Positives

• The transaction is a routine, non-discretionary disposition of shares to satisfy tax withholding obligations, which is a common event for insiders receiving equity compensation.
• The transaction was executed under a Rule 10b5-1 plan, indicating it was pre-scheduled and not a discretionary sale based on new information.
• Stephen Stout continues to hold a significant number of shares (81,529) in Shattuck Labs following this transaction, demonstrating continued alignment with shareholder interests.

Negatives

• A reduction in direct share ownership by an officer, although for a specific, non-discretionary reason related to tax obligations.

Future Outlook

The filing, a Form 4, is a report of an insider transaction and does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

This Form 4 filing is a standard regulatory disclosure for insider transactions and does not provide specific insights into broader industry trends or competitive landscape. Such tax-related dispositions are common across all industries for executives receiving equity compensation.

Stakeholder Impact

• Shareholders: Minimal impact, as this is a routine, non-discretionary transaction for tax purposes and does not signal a change in company fundamentals or management confidence.
• Employees, Customers, Suppliers, Creditors: No direct impact from this specific insider transaction.

Key Dates

Recommendation

The filing details a routine, non-discretionary disposition of shares by an officer to cover tax withholding obligations, which is a common occurrence for equity compensation. It does not signal a change in the company's fundamentals or management's confidence, thus a 'hold' recommendation is appropriate as this transaction alone does not provide new information to alter an existing investment thesis.

Keywords

Shattuck Labs, STTK, Stephen Stout, Form 4, Insider Transaction, Stock Sale, Tax Withholding, Common Stock, Officer Transaction, Rule 10b5-1