Form 4: Twist Bio Officer Sells Shares for Tax Obligations

Robert F. Werner, Chief Accounting Officer of Twist Bioscience, sold 2,041 shares of common stock at $32.187 per share to cover tax withholding obligations.

Summary

• Robert F. Werner, Chief Accounting Officer and Director of Twist Bioscience Corp (TWST), reported a sale of common stock.
• On October 6, 2025, Werner sold 2,041 shares of TWST common stock.
• The shares were sold at a price of $32.187 per share.
• The transaction was a "sell to cover" to satisfy tax withholding obligations related to the vesting of Performance Stock Units (PSUs).
• This sale was mandated by the Issuer's equity incentive plans and was not a discretionary trade.
• Following the transaction, Werner beneficially owns 46,413 shares of common stock.

Sentiment

Score: 5

Explanation: The sale of shares by the Chief Accounting Officer was explicitly stated as a non-discretionary 'sell to cover' transaction to meet tax withholding obligations related to PSU vesting, rather than a discretionary trade based on market sentiment or company performance.

Future Outlook

NA

Management Comments

• Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Performance Stock Units ("PSUs").
• These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.

Industry Context

This is a routine insider transaction for tax purposes, common across all industries for executives receiving equity compensation. It does not reflect broader industry trends or competitive positioning.

Stakeholder Impact

• Minimal impact on shareholders, as the sale is a routine, non-discretionary event for tax purposes and does not signal a change in management's confidence or company fundamentals.
• No direct impact on employees, customers, suppliers, or creditors.

Key Dates

Recommendation

The reported transaction is a non-discretionary 'sell to cover' sale by an executive to satisfy tax obligations arising from the vesting of Performance Stock Units. This type of insider sale is a common occurrence and does not typically reflect a change in the executive's outlook on the company's prospects or the stock's valuation. Therefore, it provides no new fundamental information to warrant a change in investment recommendation; a 'hold' stance is maintained based on existing company fundamentals.

Keywords

Twist Bioscience, TWST, Insider Trading, Form 4, Robert F. Werner, Chief Accounting Officer, Stock Sale, Equity Incentive Plan, Performance Stock Units, Tax Withholding