0001415889-25-018051.txt : 20250624 0001415889-25-018051.hdr.sgml : 20250624 20250624161505 ACCESSION NUMBER: 0001415889-25-018051 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250621 FILED AS OF DATE: 20250624 DATE AS OF CHANGE: 20250624 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ALVARADO JOSEPH CENTRAL INDEX KEY: 0001047461 ORGANIZATION NAME: STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36473 FILM NUMBER: 251069368 MAIL ADDRESS: STREET 1: 705 N. BAR Y ROAD STREET 2: P.O. BOX 11368 CITY: JACKSON STATE: WY ZIP: 83002 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Trinseo PLC CENTRAL INDEX KEY: 0001519061 STANDARD INDUSTRIAL CLASSIFICATION: PLASTICS, MATERIALS, SYNTH RESINS & NONVULCAN ELASTOMERS [2821] ORGANIZATION NAME: 08 Industrial Applications and Services EIN: 000000000 STATE OF INCORPORATION: L2 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 440 EAST SWEDESFORD ROAD STREET 2: SUITE 301 CITY: WAYNE STATE: PA ZIP: 19087 BUSINESS PHONE: 610-240-3200 MAIL ADDRESS: STREET 1: 440 EAST SWEDESFORD ROAD STREET 2: SUITE 301 CITY: WAYNE STATE: PA ZIP: 19087 FORMER COMPANY: FORMER CONFORMED NAME: Trinseo S.A. DATE OF NAME CHANGE: 20110429 FORMER COMPANY: FORMER CONFORMED NAME: Bain Capital Everest (Luxco 2) S.a r.l. DATE OF NAME CHANGE: 20110426 4 1 form4-06242025_040601.xml X0508 4 2025-06-21 0001519061 Trinseo PLC TSE 0001047461 ALVARADO JOSEPH C/O TRINSEO PLC 440 EAST SWEDESFORD ROAD, SUITE 301 WAYNE PA 19087 true false false false 0 Ordinary Shares 2025-06-21 4 F 0 10327 3.73 D 52187 D Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. /s/ Angelo Chaclas, Attorney-in-Fact 2025-06-24