STOCK TITAN

[Form 4] Trinseo PLC Insider Trading Activity

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

SEC Form 4 filing overview: On 25 June 2025, Trinseo PLC (ticker: TSE) reported that board director Sandra Beach Lin acquired 42,484 ordinary shares through a restricted stock unit (RSU) grant. The RSUs were issued at a stated price of $0 as part of the company’s equity-based compensation program and will vest in full on the first anniversary of the grant date, according to the single footnote provided.

Post-transaction ownership: Following the award, Lin’s aggregate beneficial ownership increased to 87,260 shares, all held directly.

Materiality assessment: The transaction does not involve open-market buying or selling and therefore does not signal a valuation opinion. It represents standard director compensation and is modest in size relative to Trinseo’s ~35 million shares outstanding (dilution impact well under 0.1%). However, the grant modestly strengthens alignment between the director and shareholders by increasing equity exposure.

Panoramica della comunicazione SEC Modulo 4: Il 25 giugno 2025, Trinseo PLC (ticker: TSE) ha comunicato che la direttrice del consiglio Sandra Beach Lin ha acquisito 42.484 azioni ordinarie tramite una concessione di unità azionarie vincolate (RSU). Le RSU sono state emesse a un prezzo nominale di 0$ nell’ambito del programma di compensazione azionaria della società e matureranno completamente al primo anniversario della data di assegnazione, come indicato nella nota a piè di pagina fornita.

Possesso post-transazione: Dopo l’assegnazione, la proprietà complessiva di Lin è aumentata a 87.260 azioni, tutte detenute direttamente.

Valutazione della rilevanza: La transazione non coinvolge acquisti o vendite sul mercato aperto e quindi non indica un’opinione di valutazione. Rappresenta una normale compensazione per il direttore ed è di entità modesta rispetto alle circa 35 milioni di azioni in circolazione di Trinseo (l’impatto diluitivo è ben sotto lo 0,1%). Tuttavia, l’assegnazione rafforza leggermente l’allineamento tra il direttore e gli azionisti aumentando l’esposizione azionaria.

Resumen de la presentación del Formulario 4 de la SEC: El 25 de junio de 2025, Trinseo PLC (símbolo: TSE) informó que la directora del consejo Sandra Beach Lin adquirió 42,484 acciones ordinarias mediante una concesión de unidades restringidas de acciones (RSU). Las RSU se emitieron a un precio declarado de $0 como parte del programa de compensación basado en acciones de la compañía y se consolidarán completamente en el primer aniversario de la fecha de concesión, según la única nota al pie proporcionada.

Propiedad posterior a la transacción: Tras la adjudicación, la propiedad beneficiaria agregada de Lin aumentó a 87,260 acciones, todas en propiedad directa.

Evaluación de materialidad: La transacción no implica compra o venta en el mercado abierto y por lo tanto no indica una opinión de valoración. Representa una compensación estándar para directores y es modesta en tamaño en relación con las aproximadamente 35 millones de acciones en circulación de Trinseo (el impacto dilutivo es muy inferior al 0,1%). Sin embargo, la concesión fortalece modestamente la alineación entre la directora y los accionistas al aumentar la exposición accionaria.

SEC 양식 4 제출 개요: 2025년 6월 25일, Trinseo PLC(티커: TSE)는 이사회 이사 산드라 비치 린42,484 보통주제한된 주식 단위(RSU) 부여를 통해 취득했다고 보고했습니다. RSU는 회사의 주식 기반 보상 프로그램의 일환으로 명시된 가격 $0에 발행되었으며, 부여일로부터 1주년 기념일에 전액 취득됩니다라고 단일 각주에 명시되어 있습니다.

거래 후 소유 현황: 부여 후 린의 총 실소유 주식은 87,260주로 증가했으며, 모두 직접 보유 중입니다.

중요성 평가: 이 거래는 공개 시장에서의 매매를 포함하지 않으므로 평가 의견을 나타내지 않습니다. 이는 표준 이사 보상에 해당하며 Trinseo의 약 3,500만 주 발행 주식 대비 규모가 작습니다(희석 영향은 0.1% 미만). 다만, 이번 부여는 이사와 주주 간의 이해관계 일치를 주식 노출 증가를 통해 다소 강화합니다.

Présentation du dépôt du formulaire SEC 4 : Le 25 juin 2025, Trinseo PLC (symbole : TSE) a rapporté que la membre du conseil d'administration Sandra Beach Lin a acquis 42 484 actions ordinaires via une attribution d’unités d’actions restreintes (RSU). Les RSU ont été émises à un prix déclaré de 0 $ dans le cadre du programme de rémunération en actions de la société et seront entièrement acquises à la date anniversaire de la première année suivant la date d’attribution, selon la note unique fournie.

Propriété après la transaction : Suite à cette attribution, la détention bénéficiaire globale de Lin a augmenté pour atteindre 87 260 actions, toutes détenues directement.

Évaluation de la matérialité : La transaction n’implique pas d’achat ou de vente sur le marché ouvert et n’indique donc pas d’opinion sur la valorisation. Elle représente une rémunération standard pour un administrateur et est modeste en taille par rapport aux environ 35 millions d’actions en circulation de Trinseo (l’impact dilutif est bien inférieur à 0,1 %). Toutefois, cette attribution renforce modestement l’alignement entre l’administrateur et les actionnaires en augmentant l’exposition en actions.

Übersicht zur SEC Formular 4 Einreichung: Am 25. Juni 2025 meldete Trinseo PLC (Ticker: TSE), dass Vorstandsmitglied Sandra Beach Lin 42.484 Stammaktien durch eine Restricted Stock Unit (RSU) Zuteilung erworben hat. Die RSUs wurden zu einem angegebenen Preis von 0 $ im Rahmen des aktienbasierten Vergütungsprogramms des Unternehmens ausgegeben und werden zum ersten Jahrestag des Zuteilungsdatums vollständig unverfallbar, so die einzige bereitgestellte Fußnote.

Besitz nach der Transaktion: Nach der Zuteilung erhöhte sich Lins gesamtes wirtschaftliches Eigentum auf 87.260 Aktien, die alle direkt gehalten werden.

Materialitätsbewertung: Die Transaktion beinhaltet keinen Kauf oder Verkauf am offenen Markt und signalisiert daher keine Bewertungseinschätzung. Sie stellt eine standardmäßige Vergütung für Direktoren dar und ist im Verhältnis zu den rund 35 Millionen ausstehenden Aktien von Trinseo bescheiden (Verwässerungseffekt deutlich unter 0,1%). Die Zuteilung stärkt jedoch leicht die Ausrichtung zwischen dem Direktor und den Aktionären durch eine erhöhte Aktienexponierung.

Positive
  • Enhanced director-shareholder alignment: The 42,484 RSU grant increases the director’s ownership to 87,260 shares, enhancing incentive alignment.
Negative
  • Minor potential dilution: New shares will be issued upon vesting, though impact is less than 0.1% of shares outstanding.

Insights

TL;DR: Routine director RSU grant; improves alignment, immaterial dilution.

The filing documents a typical annual equity grant to a non-executive director. Because the RSUs vest after one year, they serve as a short-term retention tool and encourage near-term oversight. The grant’s size—42,484 shares—adds roughly 0.12% to the director’s stake but is negligible versus the company’s float, so dilution risk is minimal. No open-market purchase means investors should not read it as a signal on valuation. Overall governance impact is positive but minor.

TL;DR: Neutral for valuation; slight positive for incentive alignment.

From a portfolio perspective, this Form 4 has no immediate earnings or cash-flow implications. The RSU award aligns the director’s interests but doesn’t change the investment thesis, liquidity, or leverage profile. Given Trinseo’s current market cap, the share count effect is immaterial, and the zero-dollar price indicates compensation rather than bullish insider buying. I classify the disclosure as non-impactful for valuation models and trading decisions.

Panoramica della comunicazione SEC Modulo 4: Il 25 giugno 2025, Trinseo PLC (ticker: TSE) ha comunicato che la direttrice del consiglio Sandra Beach Lin ha acquisito 42.484 azioni ordinarie tramite una concessione di unità azionarie vincolate (RSU). Le RSU sono state emesse a un prezzo nominale di 0$ nell’ambito del programma di compensazione azionaria della società e matureranno completamente al primo anniversario della data di assegnazione, come indicato nella nota a piè di pagina fornita.

Possesso post-transazione: Dopo l’assegnazione, la proprietà complessiva di Lin è aumentata a 87.260 azioni, tutte detenute direttamente.

Valutazione della rilevanza: La transazione non coinvolge acquisti o vendite sul mercato aperto e quindi non indica un’opinione di valutazione. Rappresenta una normale compensazione per il direttore ed è di entità modesta rispetto alle circa 35 milioni di azioni in circolazione di Trinseo (l’impatto diluitivo è ben sotto lo 0,1%). Tuttavia, l’assegnazione rafforza leggermente l’allineamento tra il direttore e gli azionisti aumentando l’esposizione azionaria.

Resumen de la presentación del Formulario 4 de la SEC: El 25 de junio de 2025, Trinseo PLC (símbolo: TSE) informó que la directora del consejo Sandra Beach Lin adquirió 42,484 acciones ordinarias mediante una concesión de unidades restringidas de acciones (RSU). Las RSU se emitieron a un precio declarado de $0 como parte del programa de compensación basado en acciones de la compañía y se consolidarán completamente en el primer aniversario de la fecha de concesión, según la única nota al pie proporcionada.

Propiedad posterior a la transacción: Tras la adjudicación, la propiedad beneficiaria agregada de Lin aumentó a 87,260 acciones, todas en propiedad directa.

Evaluación de materialidad: La transacción no implica compra o venta en el mercado abierto y por lo tanto no indica una opinión de valoración. Representa una compensación estándar para directores y es modesta en tamaño en relación con las aproximadamente 35 millones de acciones en circulación de Trinseo (el impacto dilutivo es muy inferior al 0,1%). Sin embargo, la concesión fortalece modestamente la alineación entre la directora y los accionistas al aumentar la exposición accionaria.

SEC 양식 4 제출 개요: 2025년 6월 25일, Trinseo PLC(티커: TSE)는 이사회 이사 산드라 비치 린42,484 보통주제한된 주식 단위(RSU) 부여를 통해 취득했다고 보고했습니다. RSU는 회사의 주식 기반 보상 프로그램의 일환으로 명시된 가격 $0에 발행되었으며, 부여일로부터 1주년 기념일에 전액 취득됩니다라고 단일 각주에 명시되어 있습니다.

거래 후 소유 현황: 부여 후 린의 총 실소유 주식은 87,260주로 증가했으며, 모두 직접 보유 중입니다.

중요성 평가: 이 거래는 공개 시장에서의 매매를 포함하지 않으므로 평가 의견을 나타내지 않습니다. 이는 표준 이사 보상에 해당하며 Trinseo의 약 3,500만 주 발행 주식 대비 규모가 작습니다(희석 영향은 0.1% 미만). 다만, 이번 부여는 이사와 주주 간의 이해관계 일치를 주식 노출 증가를 통해 다소 강화합니다.

Présentation du dépôt du formulaire SEC 4 : Le 25 juin 2025, Trinseo PLC (symbole : TSE) a rapporté que la membre du conseil d'administration Sandra Beach Lin a acquis 42 484 actions ordinaires via une attribution d’unités d’actions restreintes (RSU). Les RSU ont été émises à un prix déclaré de 0 $ dans le cadre du programme de rémunération en actions de la société et seront entièrement acquises à la date anniversaire de la première année suivant la date d’attribution, selon la note unique fournie.

Propriété après la transaction : Suite à cette attribution, la détention bénéficiaire globale de Lin a augmenté pour atteindre 87 260 actions, toutes détenues directement.

Évaluation de la matérialité : La transaction n’implique pas d’achat ou de vente sur le marché ouvert et n’indique donc pas d’opinion sur la valorisation. Elle représente une rémunération standard pour un administrateur et est modeste en taille par rapport aux environ 35 millions d’actions en circulation de Trinseo (l’impact dilutif est bien inférieur à 0,1 %). Toutefois, cette attribution renforce modestement l’alignement entre l’administrateur et les actionnaires en augmentant l’exposition en actions.

Übersicht zur SEC Formular 4 Einreichung: Am 25. Juni 2025 meldete Trinseo PLC (Ticker: TSE), dass Vorstandsmitglied Sandra Beach Lin 42.484 Stammaktien durch eine Restricted Stock Unit (RSU) Zuteilung erworben hat. Die RSUs wurden zu einem angegebenen Preis von 0 $ im Rahmen des aktienbasierten Vergütungsprogramms des Unternehmens ausgegeben und werden zum ersten Jahrestag des Zuteilungsdatums vollständig unverfallbar, so die einzige bereitgestellte Fußnote.

Besitz nach der Transaktion: Nach der Zuteilung erhöhte sich Lins gesamtes wirtschaftliches Eigentum auf 87.260 Aktien, die alle direkt gehalten werden.

Materialitätsbewertung: Die Transaktion beinhaltet keinen Kauf oder Verkauf am offenen Markt und signalisiert daher keine Bewertungseinschätzung. Sie stellt eine standardmäßige Vergütung für Direktoren dar und ist im Verhältnis zu den rund 35 Millionen ausstehenden Aktien von Trinseo bescheiden (Verwässerungseffekt deutlich unter 0,1%). Die Zuteilung stärkt jedoch leicht die Ausrichtung zwischen dem Direktor und den Aktionären durch eine erhöhte Aktienexponierung.

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*
LIN SANDRA BEACH

(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 87,260 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 insider transaction did Trinseo (TSE) report?

Director Sandra Beach Lin received 42,484 RSUs on 25 June 2025 as disclosed in a Form 4 filing.

How many Trinseo shares does the director own after the grant?

Lin now beneficially owns 87,260 ordinary shares.

Was cash paid for the RSUs?

No. The RSUs were granted at a stated price of $0 as part of director compensation.

When will the RSUs vest?

The award vests in full one year after the 25 June 2025 grant date.

Does the Form 4 indicate insider buying or selling?

It indicates a compensation grant, not an open-market purchase or sale.

Is the transaction material for existing shareholders?

Dilution from 42,484 shares is immaterial (well below 0.1%) to Trinseo’s float.
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