Trinseo PLC
US ˙ NYSE ˙ SG1F88861140
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityTSE / Trinseo PLC
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Engineers Gate Manager LP closes position in TSE / Trinseo PLC

On November 14, 2025 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 0 shares of Trinseo PLC (US:TSE) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 72,806 shares of Trinseo PLC. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-11-14 2025-09-30 13F TRINSEO SHS G9059U107 0 -100.00 0
2025-08-14 2025-06-30 13F TRINSEO SHS G9059U107 72,806 62,771 625.52 227 530.56 0.0028
2025-05-15 2025-03-31 13F TRINSEO SHS G9059U107 10,035 -12,648 -55.76 37 -68.70 0.0006
2025-02-14 2024-12-31 13F TRINSEO SHS G9059U107 22,683 -5,150 -18.50 116 -19.01 0.0020
2024-11-14 2024-09-30 13F TRINSEO SHS G9059U107 27,833 -3,101 -10.02 142 100.00 0.0028
2024-08-14 2024-06-30 13F TRINSEO SHS G9059U107 30,934 30,934 71 0.0016
2024-05-15 2024-03-31 13F TRINSEO SHS G9059U107 0 -13,062 -100.00 0 -100.00
2024-02-14 2023-12-31 13F TRINSEO SHS G9059U107 13,062 -39,111 -74.96 109 -74.41 0.0031
2023-11-14 2023-09-30 13F TRINSEO SHS G9059U107 52,173 52,173 426 0.0158
2023-08-14 2023-06-30 13F TRINSEO SHS G9059U107 0 -83,358 -100.00 0 -100.00
2023-05-15 2023-03-31 13F TRINSEO SHS G9059U107 83,358 83,358 1,738 0.0726
2023-02-14 2022-12-31 13F TRINSEO SHS G9059U107 0 -26,798 -100.00 0 -100.00
2022-11-14 2022-09-30 13F TRINSEO SHS G9059U107 26,798 15,746 142.47 491 15.53 0.0305
2022-08-15 2022-06-30 13F TRINSEO SHS G9059U107 11,052 3,464 45.65 425 16.76 0.0156
2022-05-16 2022-03-31 13F TRINSEO SHS G9059U107 7,588 7,588 364 0.0142
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.