Welcome to our dedicated page for Trinseo Plc SEC filings (Ticker: TSE), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The SEC filings of Trinseo PLC (NYSE: TSE) provide detailed insight into the company’s operations as a specialty material solutions provider in plastics and latex binders, as well as its financial condition, capital structure and governance. Through periodic and current reports, investors can review how Trinseo presents the performance of its Engineered Materials, Latex Binders and Polymer Solutions segments and its equity method investment in Americas Styrenics.
On this page, you can access Trinseo’s Form 8-K current reports, which disclose material events such as quarterly financial results, restructuring plans, changes to dividend policy and notices from the New York Stock Exchange regarding continued listing standards. For example, Trinseo has filed 8-Ks describing the MMA Restructuring Plan in Italy, the PS Restructuring Plan in Germany, the indefinite suspension of its quarterly dividend, and NYSE notices related to minimum market capitalization and minimum share price criteria.
Trinseo’s filings also discuss non-GAAP financial measures such as EBITDA, Adjusted EBITDA, Adjusted Net Income (Loss), Adjusted EPS and Free Cash Flow, along with reconciliations to GAAP figures in the notes to its condensed consolidated financial information. These disclosures help readers understand how management evaluates business trends, pricing strategies and liquidity beyond standard GAAP metrics.
In addition, SEC documents cover governance and compensation matters, including Annual General Meeting voting results, amendments to the Omnibus Incentive Plan, and retention or incentive arrangements for named executive officers. Risk factor updates, such as those related to potential NYSE delisting if listing standards are not met, are also included in Trinseo’s filings.
Stock Titan’s platform presents these filings with AI-powered summaries that explain key points in accessible language, highlight segment and liquidity information from quarterly and annual reports, and surface important items such as restructuring charges or listing-status disclosures. Investors can use this page to follow Trinseo’s 10-K and 10-Q reports when available, as well as Form 4 insider transaction reports and other SEC documents, with real-time updates from EDGAR.
Trinseo PLC reported a wider quarterly loss and lower sales in Q3 2025. Net sales were $743.2 million, down from $867.7 million a year ago, and gross profit fell to $37.4 million. The Company posted an operating loss of $28.2 million and a net loss of $109.7 million, compared with a net loss of $87.3 million in the prior-year period.
Year-to-date, net sales were $2,312.3 million with a net loss of $294.2 million. Interest expense remained elevated at $70.6 million for the quarter and $206.7 million year-to-date. Cash and cash equivalents were $112.1 million, and total debt (less unamortized deferred financing fees) was $2,522.9 million. Shareholders’ equity was a deficit of $861.6 million.
The Company continued restructuring efforts. Q3 activity under the 2024 Restructuring Plan and Stade Shutdown totaled $1.9 million of charges, and the 2023 plan recorded $1.8 million of charges. On October 2, 2025, Trinseo approved an MMA Restructuring Plan in Italy, with expected pre-tax charges of $80.0 million to $100.0 million and anticipated cash payments of $40.0 million to $50.0 million, with substantially all payments expected by the end of 2028.
Trinseo PLC (TSE) furnished a press release announcing its financial results for the third quarter and year ended September 30, 2025, and will host an investor call and webcast on November 7, 2025 at 10:30 AM Eastern Time to discuss the results. The company also made an investor presentation available on its website. The press release is furnished as Exhibit 99.1 and the investor presentation as Exhibit 99.2.
Insider transaction summary: An officer of Trinseo PLC reported a share disposition on
Trinseo PLC approved a restructuring plan to permanently close its methyl methacrylate (MMA) plant in Rho and acetone cyanohydrin (ACH) operations in Porto Marghera, Italy. The plan is meant to streamline its MMA production network, with the company sourcing all MMA feedstock from third-party producers.
Trinseo expects total pre-tax restructuring charges of $80 million to $100 million, including $3 million to $6 million of employee-related costs, $40 million to $46 million of asset-related charges, and $37 million to $48 million tied to exiting production activities such as contract terminations, demolition and decommissioning. Future cash payments are projected at $40 million to $50 million, mostly by the end of 2028, with actions beginning in Q4 2025 and targeted completion by the end of 2026, subject to local law. The company estimates about $20 million of annualized profitability improvement starting in 2026. In the same press release, the Board also disclosed that it has voted to indefinitely suspend the quarterly dividend.
Trinseo PLC disclosed that its Board of Directors has voted to indefinitely suspend the company’s quarterly dividend of $0.01 per share. This means shareholders will no longer receive the small recurring cash payment that had been made each quarter.
The company expects this suspension to save approximately $1.5 million annually. Ending the dividend reduces cash outflows and preserves capital within the business, but also removes a source of regular income for shareholders who relied on these payments.
Johanna Frisch, VP and Treasurer of Trinseo PLC (TSE), reported a transaction on 09/30/2025 in which 2,194 ordinary shares were disposed of at a price of $2.35 per share. The filing states these shares were withheld by the company to pay taxes following the vesting of previously granted restricted stock units. After the withholding, the reporting person beneficially owned 15,898 ordinary shares. The Form 4 was signed by an attorney-in-fact on 10/02/2025.
Roger Greene, VP, Global Controller & PAO of Trinseo PLC (TSE), reported a transaction on 09/25/2025 in which 1,617 ordinary shares were disposed at $2.57 per share. The Form 4 indicates the shares were withheld by the company to pay taxes following the vesting of restricted stock units, and the reporting person now directly beneficially owns 49,856 shares. The filing was signed by an attorney-in-fact on behalf of the reporting person on 09/29/2025. The disclosure is a routine insider tax-withholding event rather than an open-market sale.
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.
CastleKnight-related entities and Aaron Weitman reported ownership of 2,766,226 ordinary shares of Trinseo PLC, representing 7.8% of the class. The filing shows the stake is held with shared voting and shared dispositive power (no sole voting or sole dispositive power reported). The reporting group identifies six related entities/persons that each report the same aggregate amount and percent, and the filing includes exhibits for a joint filing agreement and control-person identification. The statement also certifies the position is not held to influence control of the issuer.
Trinseo PLC (TSE) director Matthew Farrell made open-market purchases totaling 100,000 ordinary shares across August 12-14, 2025, raising his beneficial ownership to 250,225 shares. The reported weighted-average prices were $2.29 on 08/12, $2.45 on 08/13 and $2.43 on 08/14, with per-trade price ranges disclosed for each date. The purchases were reported on Form 4 and executed by an attorney-in-fact; full per-price breakdowns are available upon request as noted in the filing.