Form 4: Personalis CFO and COO Sells Shares for Tax Obligations

Personalis, Inc.'s CFO and COO, Aaron Tachibana, sold 641 shares of common stock at $6.57 per share to cover tax withholding obligations from vested restricted stock units.

Summary

• Aaron Tachibana, the Chief Financial Officer and Chief Operating Officer of Personalis, Inc. (PSNL), reported a transaction involving the company's common stock.
• On July 28, 2025, Mr. Tachibana disposed of 641 shares of Personalis common stock.
• The shares were sold at a price of $6.57 per share.
• The sale was explicitly stated as an automatic transaction to cover tax withholding obligations arising from the settlement of vested restricted stock units.
• Following this transaction, Mr. Tachibana beneficially owns 164,458 shares of Personalis, Inc. common stock directly.

Sentiment

Score: 5

Explanation: The sentiment is neutral as the transaction is a non-discretionary sale to cover tax obligations from vested restricted stock units, which is a common and routine event for corporate insiders and does not indicate a change in confidence or company performance.

Future Outlook

No forward-looking statements or guidance were provided in this filing, as it pertains solely to an insider's personal stock transaction.

Industry Context

This filing is a routine insider transaction report and does not provide information relevant to broader industry trends or competitive landscape analysis.

Stakeholder Impact

• The impact on shareholders is minimal as this is a small, routine, non-discretionary sale by an insider for tax purposes, not indicative of a change in company fundamentals or management's confidence.

Key Dates

Keywords

Personalis, PSNL, Insider Transaction, Form 4, Stock Sale, Tax Withholding, Restricted Stock Units, Aaron Tachibana, CFO, COO