Trinseo PLC

Historical 13F Holders

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

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. 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
BlackRock, Inc. 13G 6.3% 7/17/2025
Event 6/30/2025
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 (1)
CastleKnight Master Fund LP 13G/A
1.4% 2/17/2026
Event 12/31/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 1 413 k $5.37 k
2026 Q2 6 463 k $740.00
2026 Q1 14 105 k $11.0 k
2025 Q4 74 24.8 M $12.3 M
2025 Q3 78 26.9 M $60.5 M
2025 Q2 83 28.2 M $87.2 M
2025 Q1 89 25.2 M $95.2 M
2024 Q4 99 25.0 M $127 M
2024 Q3 77 23.3 M $118 M
2024 Q2 105 26.0 M $57.6 M
2024 Q1 123 28.5 M $110 M
2023 Q4 143 30.0 M $248 M
2023 Q3 159 29.8 M $242 M
2023 Q2 159 32.9 M $419 M
2023 Q1 175 33.3 M $696 M
2022 Q4 193 34.2 M $780 M
2022 Q3 195 32.0 M $586 M
2022 Q2 209 34.0 M $1.31 B
2022 Q1 199 34.5 M $1.66 B
2021 Q4 193 35.2 M $1.84 B
2021 Q3 16 350 k $18.8 M
2021 Q2 1 900 $53.9 k
2021 Q1 1 900 $57.3 k
2020 Q4 2 916 $47.1 k
2020 Q3 1 900 $23.1 k
2020 Q2 1 900 $19.9 k
2019 Q3 1 762 $32.7 k