Reverberi Francesca 4

What Happened
Francesca Reverberi, Senior Vice President, EM and Polymer Solutions at Trinseo (TSE), had 1,385 shares withheld by the company on 2026-02-27 to satisfy tax obligations following the vesting of previously granted restricted stock units. The shares were valued at $0.23 each, for a total withholding value of $319. This was a tax-withholding disposition (not an open-market sale).

Key Details

• Transaction date: 2026-02-27; filing date (Form 4): 2026-03-03 (timely under the 2-business-day rule).
• Shares withheld/disposed: 1,385 at $0.23 per share, total $319.
• Transaction code: F (shares withheld to pay taxes). Footnote F1: "Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units."
• Shares owned after the transaction: not specified in this Form 4.

Context
This was a routine tax-withholding event tied to RSU vesting, not an indicative open-market purchase or sale of stock; such withholdings are standard and do not necessarily reflect the insider’s view of the company’s prospects. The filing was submitted on March 3, 2026, which meets the Form 4 timeliness requirement for the Feb 27 transaction.