Form 4: Trinseo CTO Sells Shares for Tax Obligations

Trinseo PLC's SVP and Chief Technology Officer, Han Hendriks, disposed of 2,067 ordinary shares to cover tax liabilities from restricted stock unit vesting.

Summary

• Han Hendriks, SVP, Chief Technology Officer of Trinseo PLC, reported a transaction involving company shares.
• On October 3, 2025, 2,067 ordinary shares were disposed of.
• The shares were withheld by the company to satisfy tax obligations arising from the vesting of restricted stock units.
• The disposition occurred at a price of $2.33 per share.
• Following this transaction, Hendriks beneficially owns 89,691 ordinary shares directly.

Sentiment

Score: 5

Explanation: Neutral. The transaction is a routine tax-related disposition of shares following restricted stock unit vesting, which is a common and expected event for executive compensation and does not indicate a change in management's outlook or company performance.

Future Outlook

NA

Industry Context

This is a routine insider transaction related to tax obligations upon restricted stock unit vesting and does not inherently reflect broader industry trends or competitive positioning.

Comparison to Industry Standards

• NA

Related Party Transactions

• The transaction involves the company withholding shares from Han Hendriks to cover tax obligations arising from the vesting of restricted stock units, a standard compensation-related related party transaction.

Stakeholder Impact

• Minimal. This is a routine, small-scale insider transaction for tax purposes, unlikely to have a significant impact on shareholders, employees, customers, suppliers, or creditors.

Key Dates

Recommendation

The reported transaction is a routine disposition of shares by an executive to cover tax liabilities upon the vesting of restricted stock units. This is a common and expected event in executive compensation and does not reflect a discretionary sale or a change in the executive's confidence in the company. Therefore, it provides no new material information to alter an existing investment thesis, warranting a 'hold' recommendation based solely on this filing.

Keywords

Trinseo PLC, TSE, Form 4, Insider Transaction, Stock Sale, Restricted Stock Units, Tax Withholding, Han Hendriks, Chief Technology Officer