Form 4: PACB Officer Sells Shares for Tax Obligations

Pacific Biosciences' Chief Accounting Officer, Michele Farmer, sold 50,167 shares of common stock across two transactions to cover tax withholding obligations from restricted stock unit vesting.

Summary

• Michele Farmer, Chief Accounting Officer of Pacific Biosciences of California, Inc. (PACB), reported sales of common stock.
• On February 17, 2026, 35,215 shares were sold at a weighted average price of $1.576 per share, with prices ranging from $1.51 to $1.68.
• On February 18, 2026, an additional 14,952 shares were sold at a weighted average price of $1.629 per share, with prices ranging from $1.55 to $1.70.
• These sales were mandatory to cover tax withholding obligations associated with the vesting of restricted stock units.
• Following these transactions, Michele Farmer beneficially owns 219,092 shares of common stock directly.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the sales were mandatory to cover tax obligations related to RSU vesting, rather than a discretionary sale indicating a change in management's outlook.

Positives

• The underlying event, vesting of restricted stock units, represents a positive compensation event for the Chief Accounting Officer.

Negatives

• A reduction in direct insider ownership, although for a non-discretionary reason.

Future Outlook

NA

Management Comments

• Sales represent the number of shares mandatorily sold to cover tax withholding obligations in connection with the vesting of restricted stock units.

Industry Context

StockSavvy.ai notes that mandatory sales to cover tax obligations upon RSU vesting are a common occurrence for executives and generally do not reflect a discretionary decision regarding the company's future prospects or stock performance.

Stakeholder Impact

• Shareholders: Minor dilution from the vesting of RSUs (though the sale itself is a secondary market transaction) and a slight reduction in direct insider ownership, which is common for tax purposes.

Key Dates

Keywords

PACB, Pacific Biosciences, Insider Trading, Form 4, Stock Sale, Restricted Stock Units, Tax Withholding, Officer Transaction