STOCK TITAN

[Form 4] Trinseo PLC Insider Trading Activity

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

Trinseo PLC (TSE) – Form 4 filed 27 Jun 2025

Director Jeanmarie F. Desmond reported the grant of 42,484 ordinary shares on 25 Jun 2025 via a restricted stock unit (RSU) award. The RSUs were acquired at $0 cost and will vest in full one year from the grant date. After the award, Desmond’s total beneficial ownership rises to 89,036 ordinary shares, all held directly. No sales, option exercises, or other derivative transactions were disclosed. The filing reflects routine director equity compensation intended to align interests with shareholders; it does not involve an open-market purchase, cash expenditure, or indicate any change in control.

Trinseo PLC (TSE) – Modulo 4 presentato il 27 giugno 2025

Il direttore Jeanmarie F. Desmond ha segnalato la concessione di 42.484 azioni ordinarie il 25 giugno 2025 tramite un premio in unità azionarie vincolate (RSU). Le RSU sono state acquisite a costo zero e matureranno completamente un anno dalla data di assegnazione. Dopo il premio, la proprietà effettiva totale di Desmond sale a 89.036 azioni ordinarie, tutte detenute direttamente. Non sono state comunicate vendite, esercizi di opzioni o altre transazioni derivate. La comunicazione riflette una normale compensazione azionaria per i direttori, volta ad allineare gli interessi con quelli degli azionisti; non comporta acquisti sul mercato aperto, spese in contanti o indica cambiamenti di controllo.

Trinseo PLC (TSE) – Formulario 4 presentado el 27 de junio de 2025

El director Jeanmarie F. Desmond informó la concesión de 42,484 acciones ordinarias el 25 de junio de 2025 mediante una adjudicación de unidades restringidas de acciones (RSU). Las RSU se adquirieron a costo cero y se consolidarán completamente un año después de la fecha de concesión. Tras la adjudicación, la propiedad beneficiaria total de Desmond asciende a 89,036 acciones ordinarias, todas mantenidas directamente. No se divulgaron ventas, ejercicios de opciones u otras transacciones derivadas. La presentación refleja una compensación accionaria rutinaria para directores destinada a alinear intereses con los accionistas; no implica una compra en el mercado abierto, gasto en efectivo ni indica un cambio de control.

Trinseo PLC (TSE) – 2025년 6월 27일 제출된 Form 4

이사 Jeanmarie F. Desmond은 2025년 6월 25일 제한 주식 단위(RSU) 수여를 통해 42,484 보통주 부여를 보고했습니다. RSU는 비용 없이 취득되었으며, 부여일로부터 1년 후에 전액 확정됩니다. 수여 후 Desmond의 총 실질 소유 주식 수는 89,036 보통주로 모두 직접 보유 중입니다. 매도, 옵션 행사 또는 기타 파생 거래는 공개되지 않았습니다. 이 보고는 주주와의 이해관계 일치를 위해 이사에게 정기적으로 제공되는 주식 보상으로, 공개 시장 매수, 현금 지출 또는 지배권 변경을 수반하지 않습니다.

Trinseo PLC (TSE) – Formulaire 4 déposé le 27 juin 2025

Le directeur Jeanmarie F. Desmond a déclaré l’octroi de 42 484 actions ordinaires le 25 juin 2025 via une attribution d’unités d’actions restreintes (RSU). Les RSU ont été acquises à coût nul et seront entièrement acquises un an après la date d’attribution. Après cette attribution, la propriété bénéficiaire totale de Desmond s’élève à 89 036 actions ordinaires, toutes détenues directement. Aucune vente, exercice d’option ou autre transaction dérivée n’a été divulguée. Ce dépôt reflète une rémunération en actions habituelle pour les administrateurs visant à aligner les intérêts avec ceux des actionnaires ; il n’implique pas d’achat sur le marché ouvert, de dépense en espèces ni ne signale un changement de contrôle.

Trinseo PLC (TSE) – Formular 4 eingereicht am 27. Juni 2025

Direktor Jeanmarie F. Desmond meldete die Gewährung von 42.484 Stammaktien am 25. Juni 2025 durch eine Restricted Stock Unit (RSU) Zuteilung. Die RSUs wurden zu Nullkosten erworben und werden ein Jahr nach dem Zuteilungsdatum vollständig unverfallbar. Nach der Zuteilung steigt Desmonds gesamtes wirtschaftliches Eigentum auf 89.036 Stammaktien, alle direkt gehalten. Es wurden keine Verkäufe, Optionsausübungen oder sonstige derivativen Transaktionen offengelegt. Die Meldung stellt eine routinemäßige Aktienvergütung für Direktoren dar, die darauf abzielt, die Interessen mit denen der Aktionäre in Einklang zu bringen; sie beinhaltet keinen Kauf am offenen Markt, keine Barausgabe und signalisiert keine Kontrolländerung.

Positive
  • Director’s beneficial ownership increases to 89,036 shares, modestly improving management–shareholder alignment.
Negative
  • Shares were granted, not purchased, so the filing lacks a traditional insider buying signal and introduces minor dilution.

Insights

TL;DR – Routine director RSU grant; mildly positive alignment, immaterial to fundamentals.

The Form 4 shows Trinseo awarded Director Jeanmarie Desmond 42,484 RSUs, boosting her direct stake to 89,036 shares. Because RSUs vest in one year and carry no purchase price, the transaction is standard board compensation rather than an opportunistic buy. It marginally improves insider alignment but has no immediate cash signal or large dilutive impact relative to Trinseo’s share count. Investors should view the filing as governance-related housekeeping rather than a catalyst.

TL;DR – Neutral event; negligible dilution, no market-moving information.

The additional 42.5k shares equate to less than 0.1 % of TSE’s outstanding float, so dilution risk is minimal. Since the shares were granted, not bought, the filing lacks the bullish purchasing signal some investors seek. Nevertheless, continued equity-based compensation helps align board incentives with long-term shareholder value. I therefore classify the impact as neutral for trading decisions.

Trinseo PLC (TSE) – Modulo 4 presentato il 27 giugno 2025

Il direttore Jeanmarie F. Desmond ha segnalato la concessione di 42.484 azioni ordinarie il 25 giugno 2025 tramite un premio in unità azionarie vincolate (RSU). Le RSU sono state acquisite a costo zero e matureranno completamente un anno dalla data di assegnazione. Dopo il premio, la proprietà effettiva totale di Desmond sale a 89.036 azioni ordinarie, tutte detenute direttamente. Non sono state comunicate vendite, esercizi di opzioni o altre transazioni derivate. La comunicazione riflette una normale compensazione azionaria per i direttori, volta ad allineare gli interessi con quelli degli azionisti; non comporta acquisti sul mercato aperto, spese in contanti o indica cambiamenti di controllo.

Trinseo PLC (TSE) – Formulario 4 presentado el 27 de junio de 2025

El director Jeanmarie F. Desmond informó la concesión de 42,484 acciones ordinarias el 25 de junio de 2025 mediante una adjudicación de unidades restringidas de acciones (RSU). Las RSU se adquirieron a costo cero y se consolidarán completamente un año después de la fecha de concesión. Tras la adjudicación, la propiedad beneficiaria total de Desmond asciende a 89,036 acciones ordinarias, todas mantenidas directamente. No se divulgaron ventas, ejercicios de opciones u otras transacciones derivadas. La presentación refleja una compensación accionaria rutinaria para directores destinada a alinear intereses con los accionistas; no implica una compra en el mercado abierto, gasto en efectivo ni indica un cambio de control.

Trinseo PLC (TSE) – 2025년 6월 27일 제출된 Form 4

이사 Jeanmarie F. Desmond은 2025년 6월 25일 제한 주식 단위(RSU) 수여를 통해 42,484 보통주 부여를 보고했습니다. RSU는 비용 없이 취득되었으며, 부여일로부터 1년 후에 전액 확정됩니다. 수여 후 Desmond의 총 실질 소유 주식 수는 89,036 보통주로 모두 직접 보유 중입니다. 매도, 옵션 행사 또는 기타 파생 거래는 공개되지 않았습니다. 이 보고는 주주와의 이해관계 일치를 위해 이사에게 정기적으로 제공되는 주식 보상으로, 공개 시장 매수, 현금 지출 또는 지배권 변경을 수반하지 않습니다.

Trinseo PLC (TSE) – Formulaire 4 déposé le 27 juin 2025

Le directeur Jeanmarie F. Desmond a déclaré l’octroi de 42 484 actions ordinaires le 25 juin 2025 via une attribution d’unités d’actions restreintes (RSU). Les RSU ont été acquises à coût nul et seront entièrement acquises un an après la date d’attribution. Après cette attribution, la propriété bénéficiaire totale de Desmond s’élève à 89 036 actions ordinaires, toutes détenues directement. Aucune vente, exercice d’option ou autre transaction dérivée n’a été divulguée. Ce dépôt reflète une rémunération en actions habituelle pour les administrateurs visant à aligner les intérêts avec ceux des actionnaires ; il n’implique pas d’achat sur le marché ouvert, de dépense en espèces ni ne signale un changement de contrôle.

Trinseo PLC (TSE) – Formular 4 eingereicht am 27. Juni 2025

Direktor Jeanmarie F. Desmond meldete die Gewährung von 42.484 Stammaktien am 25. Juni 2025 durch eine Restricted Stock Unit (RSU) Zuteilung. Die RSUs wurden zu Nullkosten erworben und werden ein Jahr nach dem Zuteilungsdatum vollständig unverfallbar. Nach der Zuteilung steigt Desmonds gesamtes wirtschaftliches Eigentum auf 89.036 Stammaktien, alle direkt gehalten. Es wurden keine Verkäufe, Optionsausübungen oder sonstige derivativen Transaktionen offengelegt. Die Meldung stellt eine routinemäßige Aktienvergütung für Direktoren dar, die darauf abzielt, die Interessen mit denen der Aktionäre in Einklang zu bringen; sie beinhaltet keinen Kauf am offenen Markt, keine Barausgabe und signalisiert keine Kontrolländerung.

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*
Desmond Jeanmarie F.

(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)
06/25/2025
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 06/25/2025 A 42,484(1) A $0 89,036 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. Represents ordinary shares issuable pursuant to a restricted stock unit award that will vest in full on the first anniversary of the grant date.
/s/ Angelo Chaclas, Attorney-in-Fact 06/27/2025
** 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 June 2025 Form 4?

Director Jeanmarie F. Desmond received 42,484 RSUs on 25 Jun 2025.

How many Trinseo shares does Jeanmarie Desmond own after the RSU grant?

Her direct beneficial ownership increased to 89,036 ordinary shares.

When will the newly granted RSUs vest?

They vest in full one year after the 25 Jun 2025 grant date.

Did the director pay for the shares?

No. The RSUs were acquired at $0 cost as part of compensation.

Were any open-market purchases or sales reported?

No. The Form 4 lists only the RSU grant; no market trades occurred.
Trinseo Plc

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