On the Record · Trinseo

Trinseo acquisitions, on the record

The businesses Trinseo bought and sold, as its annual reports describe them, with the cash it reported paying for acquisitions each year and every deal filing since 2016.

Deals its annual reports describe

Business	Deal	When	Value
Heathland B.V. Word for word“In support of our strategy and to improve our footprint as a sustainable solutions provider, in January 2022, we completed the acquisition of Heathland B.V. (“Heathland”).” 10-K for 2023	acquisition	January 2022	—
styrenics businesses (Polystyrene and Americas Styrenics segments) Word for word“We continue to evaluate strategic alternatives to divest all or a portion of our styrenics businesses, which includes our Polystyrene and Americas Styrenics reporting segments.” 10-K for 2023	divestiture	—	—
Synthetic Rubber business Word for word“Net income (loss) from discontinued operations, net of income taxes during the year ended December 31, 2022 was $(2.9) million and was related to the results and sale of our Synthetic Rubber business.” 10-K for 2023	divestiture	2022	—
Matamoros, Mexico manufacturing facility Word for word“(b) Amounts for the year ended December 31, 2023 primarily relate to the sale of the Matamoros, Mexico manufacturing facility.” 10-K for 2023	divestiture	December 31, 2023	—
Americas Styrenics LP interest Word for word“In 2024, we announced the commencement of the sale process for our interest in Americas Styrenics pursuant to an ownership exit provision in the joint venture agreement.” 10-K for 2024	agreed divestiture	—	—
Bronderslev, Denmark plant Word for word“(b) Amounts for the year ended December 31, 2024 primarily relate to the sale of the plants in Bronderslev, Denmark and Belen, New Mexico while the amounts for the year ended December 31, 2023 primarily relate to the sale of the Matamoros, Mexico manufacturing facility.” 10-K for 2024	divestiture	—	—
Belen, New Mexico plant Word for word“(b) Amounts for the year ended December 31, 2024 primarily relate to the sale of the plants in Bronderslev, Denmark and Belen, New Mexico while the amounts for the year ended December 31, 2023 primarily relate to the sale of the Matamoros, Mexico manufacturing facility.” 10-K for 2024	divestiture	—	—
proprietary polycarbonate manufacturing assets in Stade, Germany Word for word“We have taken steps toward executing on our strategy to transform the Company to a specialty materials and sustainable solutions provider, including the PMMA Acquisition, the acquisition of Aristech Surfaces LLC, the sale of our synthetic rubber business, and the sale of our proprietary polycarbonate manufacturing assets in Stade, Germany.” 10-K for 2024	divestiture	—	—
PMMA business from Arkema S.A. Word for word“which was assumed in connection with our acquisition of the PMMA business from Arkema S.A. (the “PMMA Acquisition”).” 10-K for 2024	acquisition	—	—
Aristech Surfaces LLC Word for word“We have taken steps toward executing on our strategy to transform the Company to a specialty materials and sustainable solutions provider, including the PMMA Acquisition, the acquisition of Aristech Surfaces LLC, the sale of our synthetic rubber business, and the sale of our proprietary polycarbonate manufacturing assets in Stade, Germany.” 10-K for 2024	acquisition	—	—
Heathland B.V. (Heathland Acquisition) Word for word“During the year ended December 31, 2022, the Company completed the Heathland Acquisition, which closed on January 3, 2022.” 10-K for 2024	acquisition	During the year ended December 31, 2022, the Company completed the Heathland Acquisition, which closed on January 3, 2022.	—
polycarbonate manufacturing assets in Stade, Germany Word for word“We have licensed certain intellectual property and proprietary manufacturing processes to a third party as part of a sale and license of our polycarbonate manufacturing plant assets in Stade, Germany.” 10-K for 2025	divestiture	—	—
plants in Bronderslev, Denmark and Belen, New Mexico Word for word“(d) Amounts for the year ended December 31, 2024 primarily relate to the sale of the plants in Bronderslev, Denmark and Belen, New Mexico while the amounts for the year ended December 31, 2023 primarily relate to the sale of the Matamoros, Mexico manufacturing facility.” 10-K for 2025	divestiture	year ended December 31, 2024	—

As filedReported in the company's financial data (XBRL), each linked to its filing
Fiscal year ended	Cash paid for acquisitions (net of cash acquired)	Goodwill from acquisitions
2017-12-31	$82.3 million	$28.7 million
2019-12-31	−$100,000	—
2020-12-31	−$100,000	—
2021-12-31	$1.8 billion	$668 million
2022-12-31	$22.2 million	$22.8 million

Deal filings since 2016

2026-06-01 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2026-05-15 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2026-05-14 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2026-04-30 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2026-04-13 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2026-03-20 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2026-02-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2025-01-21 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2025-01-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2024-12-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2024-12-11 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2024-12-10 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2024-07-22 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2024-04-02 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2023-09-08 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-12-02 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-12-02 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
2021-07-21 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-07-13 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
2021-05-25 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-05-14 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-05-05 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-05-03 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
2021-03-24 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-03-22 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2020-12-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2020-10-30 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2020-07-02 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2017-09-07 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2017-09-05 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2016-05-11 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2016-03-24 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement

Read from Trinseo’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-03-13. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.