Trinseo PLC filings document material-event disclosures for an Ireland-incorporated specialty materials issuer, including operating results, earnings-release exhibits, investor presentations, capital-structure discussions, credit-facility waivers and listing-status records. Recent Form 8-K reports address financial results and stakeholder discussions involving debt and waiver arrangements, while Form 25 records the removal of the company’s ordinary shares from NYSE listing and the transition of trading to the OTC symbol TSEOF.
Trinseo PLC (Ticker: TSE) filed a Form 4 disclosing that director Victoria Brifo had shares withheld to cover tax obligations arising from the vesting of previously granted restricted stock units.
The filing shows a single non-derivative transaction dated 06/21/2025 with transaction code “F” (payment of tax withholdings). A total of 9,576 ordinary shares were surrendered at an indicated price of $3.73 per share, equal to roughly $35.7 thousand. Following the withholding, Brifo’s direct beneficial ownership stands at 40,741 ordinary shares.
No derivative securities were involved and there were no open-market purchases or discretionary sales. Because the transaction was for tax withholding, it does not necessarily reflect the insider’s sentiment about Trinseo’s prospects, but it does reduce her outstanding share count by approximately 19% from the pre-withholding total of 50,317 shares.
Other than the routine tax-related share surrender, the filing contains no additional material changes, corporate actions, or strategic commentary.
SEC Form 4 snapshot: Trinseo PLC (TSE) director K. Lynne Johnson reported a disposal of 10,474 ordinary shares on 06/21/2025. The shares were withheld by the company at $3.73 per share to satisfy tax obligations tied to the vesting of previously granted restricted stock units (transaction code “F”).
After the tax-related withholding, Johnson’s direct ownership stands at 48,429 ordinary shares. No derivative securities or Rule 10b5-1 trading plan were disclosed.
Because “F”-coded transactions reflect mandatory tax settlements rather than discretionary trading, the filing is generally viewed as neutral with minimal impact on insider sentiment or valuation outlook.
Trinseo PLC (Ticker: TSE) – Form 4 filing dated 24 June 2025
The filing discloses an insider transaction by Director Jeanmarie F. Desmond. On 21 June 2025, the company withheld 10,343 ordinary shares to satisfy taxes triggered by the vesting of previously granted restricted stock units, a transaction coded “F” (tax-related disposition). The shares were valued at $3.73 per share. Following the withholding, Desmond’s direct ownership stands at 46,552 ordinary shares.
No derivative securities were reported and there were no open-market purchases or sales. The transaction is administrative in nature and does not represent an active trading decision by the director.
Trinseo PLC (TSE) submitted a Form 4 covering a single insider transaction by Director Joseph Alvarado.
On 21 June 2025, 10,327 ordinary shares were withheld by the company (transaction code “F”) to satisfy tax obligations arising from the vesting of previously granted restricted stock units. The shares were valued at $3.73, implying an aggregate value of roughly $38.5 thousand.
Following the tax-related disposition, Alvarado’s direct ownership stands at 52,187 shares. No open-market purchases or sales and no derivative security transactions were reported. Because the event is routine and non-discretionary, it generally carries neutral signaling value for investors.