Trinseo PLC (NYSE: TSE) details trade volumes by segment and end use

Rhea-AI Filing Summary

Trinseo PLC furnished an update describing the composition of its trade volumes by business segment and end application. The company released this supplemental information on August 26, 2025 to help investors better understand demand trends across the different end uses for its products.

The details are provided in Exhibit 99.1, which breaks down trade volumes by segment and end application. This information is being furnished under Regulation FD, meaning it is not deemed filed for purposes of certain liability provisions of the securities laws and is not automatically incorporated into other securities filings unless specifically referenced.

0001519061false00-000000000015190612025-08-262025-08-26

​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

​

FORM 8-K

​

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

​

Date of Report (Date of earliest event reported): August 26, 2025

​

Trinseo PLC

(Exact name of registrant as specified in its charter)

​

​	​	​	​	​
Ireland	​	001-36473	​	N/A
(State or other jurisdiction of incorporation or organization)	​	(Commission File Number)	​	(I.R.S. Employer Identification Number)

​

440 East Swedesford Road, Suite 301,

Wayne, Pennsylvania 19087

(Address of principal executive offices, including zip code)

​

(610) 240-3200

(Telephone number, including area code)

​

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

​

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

​	​	​
Title of Each Class	Trading symbol(s)	Name of Each Exchange on which registered
Ordinary Shares, par value $0.01 per share	TSE	New York Stock Exchange

​

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

​

Emerging growth company ☐

​

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

​

ITEM 7.01Regulation FD.

On August 26, 2025, Trinseo PLC (the “Company”) released supplemental information concerning the composition of the Company’s trade volumes, by business segment and end application, to assist investors with understanding demand trends by end application. The information is attached as Exhibit 99.1 and incorporated by reference herein.

​

The information contained in Item 7.01 and Exhibit 99.1 of this Current Report shall not be deemed filed for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

​

​

​	​
ITEM 9.01	Exhibits.
99.1	Information concerning trade volumes by segment and end application
104	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)

​

​

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

​

​

	TRINSEO PLC
	By:	/s/ David Stasse
	Name:	David Stasse
	Title:	Executive Vice President and Chief Financial Officer
Date: August 26, 2025

​

​

​

FAQ

What did Trinseo PLC (TSE) disclose in this Form 8-K?

Trinseo PLC furnished supplemental information on the composition of its trade volumes by business segment and end application. This data is intended to help investors understand demand trends by end application and is provided in Exhibit 99.1.

Why is Trinseo PLC providing trade volume data by segment and end application?

The company states that the supplemental information is meant to assist investors with understanding demand trends by end application, giving more insight into how its volumes are distributed across different markets.

Where can investors find the detailed trade volume information for Trinseo PLC (TSE)?

The detailed breakdown of trade volumes by segment and end application is contained in Exhibit 99.1 to the Form 8-K. The exhibit is incorporated by reference into the report.

Is the Trinseo PLC trade volume information considered filed with the SEC?

The company specifies that the information in Item 7.01 and Exhibit 99.1 is furnished, not filed, for purposes of Section 18 of the Securities Exchange Act of 1934. It is not subject to that section’s liability provisions and is not incorporated into other filings unless specifically referenced.

Does this Trinseo PLC Form 8-K include any major transactions or earnings data?

No major transactions or earnings results are described. The report focuses on supplemental disclosure of trade volume composition by business segment and end application.

Which exhibit in Trinseo PLC’s Form 8-K contains the new information?

Exhibit 99.1 contains the information concerning trade volumes by segment and end application. Exhibit 104 is the Cover Page Interactive Data File formatted in Inline XBRL.