TSE Form 4: Matthew Farrell Receives Annual RSU Grant, No Cash Exchanged

Rhea-AI Filing Summary

Form 4 filing overview – Trinseo PLC (TSE)

On 06/25/2025, Trinseo PLC filed a Form 4 detailing an equity award to independent director Matthew Farrell. The filing shows that Farrell received 42,484 ordinary shares in the form of a restricted stock unit (RSU) grant. According to the explanatory note, the RSUs will vest in full on the first anniversary of the grant date, subject to continued service. No cash was exchanged, so the transaction price is reported as $0.

Following the award, Farrell’s total beneficial ownership increased to 150,225 ordinary shares, all held directly. The filing does not list any derivative securities and does not disclose other open‐market purchases or sales.

Key contextual points for investors:

• Alignment of interests: Equity compensation can strengthen alignment between directors and shareholders.
• Non-cash, scheduled vesting: Because the units are subject to a one-year vesting schedule, immediate share count impact is limited; dilution, if any, occurs upon vesting.
• Routine compensation: The award appears to be part of standard director compensation rather than a discretionary purchase, which typically carries less signaling value than an open-market buy.

No other material transactions, financial results, or changes in governance were disclosed in this filing.

Positive

• Director equity grant increases insider ownership, modestly enhancing alignment with shareholders.

Negative

• None.

Insights

Financial Analyst

TL;DR: Routine RSU grant lifts director’s stake by 42.5k shares; limited near-term market impact.

The Form 4 records an annual equity grant to director Matthew Farrell. Although insider equity accruals are generally viewed as positive, the absence of cash consideration and the one-year vesting period reduce the immediacy of any signaling effect. Ownership now stands at 150,225 shares, a modest holding relative to Trinseo’s ~35 million shares outstanding. With no accompanying operational news, the filing is best interpreted as routine board compensation rather than a directional indicator for earnings or liquidity.

Corporate Governance Expert

TL;DR: Standard compensation grant underscores good alignment practice, but immaterial to control or governance dynamics.

Trinseo’s board continues to compensate directors with equity, consistent with prevailing governance norms that favor share-based pay to foster long-term focus. The one-year cliff vesting period aligns with typical director award structures, balancing retention and independence. Farrell’s ownership remains well below thresholds that would raise independence or control concerns. From a governance standpoint, the disclosure is transparent and complies with Section 16 reporting rules, but it does not materially alter board composition or shareholder power balance.

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

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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^*

FARRELL MATTHEW

(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	150,225	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

How many Trinseo (TSE) shares were granted to director Matthew Farrell?

The Form 4 shows an award of 42,484 ordinary shares via restricted stock units.

What is the vesting schedule for the RSUs reported on 06/25/2025?

The RSUs will vest in full one year after the grant date, i.e., on 06/25/2026, assuming continued service.

What is Matthew Farrell’s total beneficial ownership after the transaction?

Following the award, Farrell beneficially owns 150,225 Trinseo shares, held directly.

Was any cash paid for the RSU grant?

No. The transaction price is reported as $0 because it is a non-cash equity award.

Does this Form 4 indicate any open-market purchases or sales?

No. The filing only reports the RSU grant; no open-market transactions were disclosed.