STOCK TITAN

[Form 4] Trinseo PLC Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Negative)
Form Type
4
Rhea-AI Filing Summary

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.

Trinseo PLC (TSE) ha presentato un Modulo 4 relativo a una singola transazione interna da parte del Direttore Joseph Alvarado.

Il 21 giugno 2025, 10.327 azioni ordinarie sono state trattenute dalla società (codice transazione “F”) per adempiere agli obblighi fiscali derivanti dalla maturazione di unità azionarie ristrette precedentemente assegnate. Le azioni sono state valutate a 3,73 $, per un valore complessivo di circa 38,5 mila $.

Dopo questa operazione fiscale, la posizione diretta di Alvarado è pari a 52.187 azioni. Non sono stati segnalati acquisti o vendite sul mercato aperto né transazioni su strumenti derivati. Poiché si tratta di un evento di routine e non discrezionale, generalmente ha un valore di segnalazione neutro per gli investitori.

Trinseo PLC (TSE) presentó un Formulario 4 que cubre una única transacción interna realizada por el Director Joseph Alvarado.

El 21 de junio de 2025, 10,327 acciones ordinarias fueron retenidas por la empresa (código de transacción “F”) para cumplir con obligaciones fiscales derivadas del otorgamiento de unidades restringidas de acciones previamente concedidas. Las acciones se valoraron en $3.73, lo que implica un valor total aproximado de $38.5 mil.

Tras esta disposición relacionada con impuestos, la propiedad directa de Alvarado es de 52,187 acciones. No se reportaron compras o ventas en el mercado abierto ni transacciones con valores derivados. Dado que el evento es rutinario y no discrecional, generalmente tiene un valor de señalización neutral para los inversores.

Trinseo PLC (TSE)는 이사 Joseph Alvarado의 단일 내부자 거래에 관한 Form 4를 제출했습니다.

2025년 6월 21일, 이전에 부여된 제한 주식 단위의 권리 확정에 따른 세금 의무를 충족하기 위해 회사가 10,327주 보통주를 원천징수했습니다(거래 코드 “F”). 주식 가치는 주당 3.73달러로, 총 가치는 약 38,500달러에 달합니다.

세금 관련 처분 후, Alvarado의 직접 소유 주식 수52,187주입니다. 공개 시장에서의 매매나 파생 증권 거래는 보고되지 않았습니다. 이 사건은 일상적이고 비재량적이므로 투자자에게 일반적으로 중립적 신호로 간주됩니다.

Trinseo PLC (TSE) a soumis un formulaire 4 concernant une seule transaction d’initié réalisée par le directeur Joseph Alvarado.

Le 21 juin 2025, 10 327 actions ordinaires ont été retenues par la société (code transaction « F ») pour satisfaire aux obligations fiscales liées à l’acquisition de droits sur des unités d’actions restreintes précédemment attribuées. Les actions ont été valorisées à 3,73 $, ce qui correspond à une valeur totale d’environ 38,5 milliers de dollars.

Après cette opération fiscale, la possession directe d’Alvarado s’élève à 52 187 actions. Aucun achat ou vente sur le marché ouvert ni transaction sur des instruments dérivés n’a été signalé. Comme il s’agit d’un événement courant et non discrétionnaire, il est généralement perçu comme un signal neutre pour les investisseurs.

Trinseo PLC (TSE) reichte ein Formular 4 ein, das eine einzelne Insider-Transaktion des Direktors Joseph Alvarado abdeckt.

Am 21. Juni 2025 wurden 10.327 Stammaktien von der Gesellschaft einbehalten (Transaktionscode „F“), um steuerliche Verpflichtungen im Zusammenhang mit der Vesting von zuvor gewährten Restricted Stock Units zu erfüllen. Die Aktien wurden mit 3,73 $ bewertet, was einem Gesamtwert von etwa 38,5 Tausend $ entspricht.

Nach dieser steuerbedingten Transaktion hält Alvarado eine direkte Beteiligung von 52.187 Aktien. Keine Käufe oder Verkäufe am offenen Markt sowie keine Transaktionen mit Derivaten wurden gemeldet. Da es sich um ein routinemäßiges und nicht diskretionäres Ereignis handelt, hat es für Investoren in der Regel eine neutrale Signalwirkung.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Routine tax withholding; no change to insider sentiment or strategy.

The filing reveals a code “F” disposition—shares withheld solely to cover taxes on RSU vesting. Such transactions are automated and do not reflect an active buy/sell decision. The modest size (≈$38 k) and the remaining 52 k shares retained signal continued alignment with shareholders. No derivatives, pledges, or sales were reported, so liquidity and governance risk remain unchanged. Market impact should be negligible.

TL;DR: Compliance-driven Form 4; governance posture unchanged.

The director met Section 16 reporting obligations within the two-business-day window, demonstrating procedural compliance. The transaction involves company-directed tax settlement rather than discretionary trading, so there is no governance red flag or signaling of insider confidence. Ownership after the event (52,187 shares) maintains an economic stake regarded as adequate under prevailing board guidelines. Overall governance impact: neutral.

Trinseo PLC (TSE) ha presentato un Modulo 4 relativo a una singola transazione interna da parte del Direttore Joseph Alvarado.

Il 21 giugno 2025, 10.327 azioni ordinarie sono state trattenute dalla società (codice transazione “F”) per adempiere agli obblighi fiscali derivanti dalla maturazione di unità azionarie ristrette precedentemente assegnate. Le azioni sono state valutate a 3,73 $, per un valore complessivo di circa 38,5 mila $.

Dopo questa operazione fiscale, la posizione diretta di Alvarado è pari a 52.187 azioni. Non sono stati segnalati acquisti o vendite sul mercato aperto né transazioni su strumenti derivati. Poiché si tratta di un evento di routine e non discrezionale, generalmente ha un valore di segnalazione neutro per gli investitori.

Trinseo PLC (TSE) presentó un Formulario 4 que cubre una única transacción interna realizada por el Director Joseph Alvarado.

El 21 de junio de 2025, 10,327 acciones ordinarias fueron retenidas por la empresa (código de transacción “F”) para cumplir con obligaciones fiscales derivadas del otorgamiento de unidades restringidas de acciones previamente concedidas. Las acciones se valoraron en $3.73, lo que implica un valor total aproximado de $38.5 mil.

Tras esta disposición relacionada con impuestos, la propiedad directa de Alvarado es de 52,187 acciones. No se reportaron compras o ventas en el mercado abierto ni transacciones con valores derivados. Dado que el evento es rutinario y no discrecional, generalmente tiene un valor de señalización neutral para los inversores.

Trinseo PLC (TSE)는 이사 Joseph Alvarado의 단일 내부자 거래에 관한 Form 4를 제출했습니다.

2025년 6월 21일, 이전에 부여된 제한 주식 단위의 권리 확정에 따른 세금 의무를 충족하기 위해 회사가 10,327주 보통주를 원천징수했습니다(거래 코드 “F”). 주식 가치는 주당 3.73달러로, 총 가치는 약 38,500달러에 달합니다.

세금 관련 처분 후, Alvarado의 직접 소유 주식 수52,187주입니다. 공개 시장에서의 매매나 파생 증권 거래는 보고되지 않았습니다. 이 사건은 일상적이고 비재량적이므로 투자자에게 일반적으로 중립적 신호로 간주됩니다.

Trinseo PLC (TSE) a soumis un formulaire 4 concernant une seule transaction d’initié réalisée par le directeur Joseph Alvarado.

Le 21 juin 2025, 10 327 actions ordinaires ont été retenues par la société (code transaction « F ») pour satisfaire aux obligations fiscales liées à l’acquisition de droits sur des unités d’actions restreintes précédemment attribuées. Les actions ont été valorisées à 3,73 $, ce qui correspond à une valeur totale d’environ 38,5 milliers de dollars.

Après cette opération fiscale, la possession directe d’Alvarado s’élève à 52 187 actions. Aucun achat ou vente sur le marché ouvert ni transaction sur des instruments dérivés n’a été signalé. Comme il s’agit d’un événement courant et non discrétionnaire, il est généralement perçu comme un signal neutre pour les investisseurs.

Trinseo PLC (TSE) reichte ein Formular 4 ein, das eine einzelne Insider-Transaktion des Direktors Joseph Alvarado abdeckt.

Am 21. Juni 2025 wurden 10.327 Stammaktien von der Gesellschaft einbehalten (Transaktionscode „F“), um steuerliche Verpflichtungen im Zusammenhang mit der Vesting von zuvor gewährten Restricted Stock Units zu erfüllen. Die Aktien wurden mit 3,73 $ bewertet, was einem Gesamtwert von etwa 38,5 Tausend $ entspricht.

Nach dieser steuerbedingten Transaktion hält Alvarado eine direkte Beteiligung von 52.187 Aktien. Keine Käufe oder Verkäufe am offenen Markt sowie keine Transaktionen mit Derivaten wurden gemeldet. Da es sich um ein routinemäßiges und nicht diskretionäres Ereignis handelt, hat es für Investoren in der Regel eine neutrale Signalwirkung.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
ALVARADO JOSEPH

(Last) (First) (Middle)
C/O TRINSEO PLC
440 EAST SWEDESFORD ROAD, SUITE 301

(Street)
WAYNE PA 19087

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Trinseo PLC [ TSE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
06/21/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Ordinary Shares 06/21/2025 F 10,327(1) D $3.73 52,187 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units.
/s/ Angelo Chaclas, Attorney-in-Fact 06/24/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Trinseo (TSE) disclose in the latest Form 4?

Director Joseph Alvarado reported 10,327 shares withheld for taxes on vested RSUs on 06/21/2025.

How many Trinseo shares does Alvarado own after the transaction?

He now directly owns 52,187 ordinary shares.

What does SEC Form 4 transaction code "F" mean?

Code “F” denotes shares withheld by the issuer to pay taxes due upon equity award vesting.

Was this an open-market sale of Trinseo stock?

No. It was company-directed tax withholding; no open-market sale occurred.

What price was used for the withheld Trinseo shares?

The shares were valued at $3.73 each, based on the company’s determination on the vesting date.
Trinseo Plc

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