Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers - Latest Activist Disclosures

This table shows recent activist investor (Schedule 13D) filings made in this industry. Any investor or hedge fund that makes an investment with the intention of influencing management is considered an activist investor and must file a 13D.

Date Form Target Company Investor Shares Ownership
(Percent)		 Ownership Change
(Percent)
2025-08-06 13D ROG / Rogers Corporation Starboard Value LP 1,676,502 9.30 97.12
2025-07-08 13D PCT / PureCycle Technologies, Inc. Longview Asset Management, Llc 11,144,455 6.20
2025-06-24 13D/A PCT / PureCycle Technologies, Inc. Sylebra Capital Llc 34,934,774 19.46 1.81
2024-09-17 13D/A PCT / PureCycle Technologies, Inc. Sylebra Capital Llc 34,314,849 19.78
2023-08-29 13D/A PCT / PureCycle Technologies, Inc. Sylebra Capital Ltd 30,050,456 18.32 0.00
2023-06-06 13D/A ROG / Rogers Corporation Starboard Value LP 850,482 4.60 -30.40
2023-02-27 13D/A ROG / Rogers Corporation Starboard Value LP 1,222,000 6.50 0.00
2023-02-06 13D ROG / Rogers Corporation Starboard Value LP 1,222,000 6.50
2022-08-12 13D TSE / Trinseo PLC M&g Investment Management Ltd 7,625,044 21.80 -0.04
2022-05-10 13D TSE / Trinseo PLC M&g Investment Management Ltd 7,628,044 21.10 -2.69
2022-03-24 13D PCT / PureCycle Technologies, Inc. Sylebra Capital Ltd 30,050,456 18.70 65.82
2020-02-07 13D TSE / Trinseo PLC M&g Investment Management Ltd 7,839,044 20.10 0.00