Trinseo PLC

Historical 13F Holders

Symbol
TSE
CUSIP
G9059U107
All holders as of
Q2 2026
Type
Equity
Class
SHS
Reported Value, Excluding Options
Total Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for G9059U107 since 12/18/2024, largest first.

Filer % of Class Filed
Nut Tree Capital Management, LP 13G/A
8.3% 5/15/2026
Event 3/31/2026
Charles Schwab Investment Management Inc 13G 5.8% 2/12/2026
Event 12/31/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
CastleKnight Master Fund LP 13G/A
1.4% 2/17/2026
Event 12/31/2025
BlackRock, Inc. 13G/A 0.3% 10/27/2026
Event 9/30/2026

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2026 Q3 1 413 k $5.37k
2026 Q2 6 463 k $740
2026 Q1 14 105 k $11.0k
2025 Q4 74 24.8 M $12.3M
2025 Q3 76 26.9 M $60.5M
2025 Q2 81 27.9 M $86.2M
2025 Q1 86 25.2 M $95.2M
2024 Q4 96 25.0 M $127M
2024 Q3 72 23.3 M $118M
2024 Q2 99 26.0 M $57.6M
2024 Q1 110 28.5 M $110M
2023 Q4 129 30.0 M $248M
2023 Q3 147 29.8 M $242M
2023 Q2 148 32.9 M $419M
2023 Q1 167 33.8 M $705M
2022 Q4 184 34.2 M $780M
2022 Q3 184 32.0 M $586M
2022 Q2 196 34.0 M $1.31B
2022 Q1 188 34.5 M $1.66B
2021 Q4 178 35.2 M $1.84B
2021 Q3 15 350 k $18.8M
2021 Q2 1 900 $53.9k
2021 Q1 1 900 $57.3k
2020 Q4 2 916 $47.1k
2020 Q3 1 900 $23.1k
2020 Q2 1 900 $19.9k
2019 Q3 1 762 $32.7k