Form 4: Adicet Bio CTO's Tax Withholding, Post-Split Holdings

Adicet Bio's Chief Technology Officer, Don Healey, reported a tax-related disposition of 535 common shares following a 1-for-16 reverse stock split.

Summary

• Don Healey, Chief Technology Officer of Adicet Bio, Inc. (ACET), reported a transaction on January 24, 2026.
• 535 shares of common stock were disposed of at a price of $8.44 per share.
• This disposition represents shares withheld by Adicet Bio to satisfy tax withholding obligations in connection with the vesting of restricted stock units, and it does not constitute a sale by Mr. Healey.
• Following this reported transaction, Mr. Healey beneficially owns 3,452 shares of common stock.
• The reported share count reflects a 1-for-16 reverse stock split effected by Adicet Bio on December 30, 2025.

Sentiment

Score: 5

Explanation: The filing reports a routine, non-discretionary transaction involving shares withheld for tax obligations upon RSU vesting, which is a standard compensation event and does not indicate a positive or negative sentiment regarding the company's performance or outlook.

Positives

• The vesting of restricted stock units (RSUs) indicates continued employee retention and compensation, which can be a positive for management stability.

Future Outlook

NA

Industry Context

This Form 4 details an insider transaction, which is a routine disclosure and does not inherently provide broader industry context. The reverse stock split, however, could be a strategic move by the company to meet listing requirements or improve stock perception, a practice sometimes seen in the biotechnology sector for companies with lower stock prices.

Stakeholder Impact

• Shareholders: The 1-for-16 reverse stock split impacts the number of shares outstanding and per-share metrics, though the overall value of holdings should remain proportional.
• Employees: The vesting of restricted stock units (RSUs) for the CTO indicates ongoing compensation practices.

Key Dates

Keywords

Adicet Bio, ACET, Form 4, insider transaction, stock split, CTO, Don Healey, restricted stock units, tax withholding