Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Trinseo PLC
Report date September 30, 2025 · Filed October 02, 2025
Section 16 reporting ended · disclosed 2025-10-02. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Ordinary SharesSEC Table I · non-derivative | Direct | 15,898 |
Reported balance
After 2025-09-30 transaction · row 1
1 source rowRow 1 · 2025-09-30 · Tax withholding · Disposed 2,194 · Balance 15,898 F1: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. |
Filing footnotes · ownership attribution and instrument terms
F1: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 30, 2025 Filed Oct 2, 2025 16:05 UTC | Trinseo PLC TSE · Entity 8671 | Tax withholdingOrdinary Shares | 2,194 | $2.35 | $5,155.90 |
DisclosureSEC source: 0001904241-25-000002 · form4-10022025_041001.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,898 F1 · shares: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. Read SEC document |
| March 14, 2025 Filed Mar 14, 2025 15:14 UTC | Trinseo PLC TSE · Entity 8671 | PurchaseOrdinary Shares | 1,500 | $4.10 | $6,150.00 |
DisclosureSEC source: 0001415889-25-008057 · form4-03142025_070338.xml · nonDerivative · entry 3 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,092 Read SEC document |
| March 13, 2025 Filed Mar 14, 2025 15:14 UTC | Trinseo PLC TSE · Entity 8671 | PurchaseOrdinary Shares | 1,100 | $4.02 | $4,422.00 |
DisclosureSEC source: 0001415889-25-008057 · form4-03142025_070338.xml · nonDerivative · entry 2 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,592 Read SEC document |
| March 12, 2025 Filed Mar 14, 2025 15:14 UTC | Trinseo PLC TSE · Entity 8671 | PurchaseOrdinary Shares | 1,200 | $4.28 | $5,136.00 |
DisclosureSEC source: 0001415889-25-008057 · form4-03142025_070338.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,492 F1 · price: Price reflects the weighted average sales price for the sales transaction made on the date reported above. Sales prices ranged from $4.27 to $4.28. The reporting person will provide, upon request by the Staff, the Company, or a security holder of the Company, full information regarding the number of shares sold at each separate price. Read SEC document |
| February 21, 2025 Filed Feb 25, 2025 12:48 UTC | Trinseo PLC TSE · Entity 8671 | Tax withholdingOrdinary Shares | 767 | $5.52 | $4,233.84 |
DisclosureSEC source: 0001415889-25-005406 · form4-02252025_050233.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,292 F1 · shares: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. Read SEC document |
| February 16, 2025 Filed Feb 18, 2025 16:08 UTC | Trinseo PLC TSE · Entity 8671 | Tax withholdingOrdinary Shares | 197 | $5.14 | $1,012.58 |
DisclosureSEC source: 0001415889-25-004386 · form4-02182025_090205.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,059 F1 · shares: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. Read SEC document |
| September 21, 2024 Filed Sep 24, 2024 15:18 UTC | Trinseo PLC TSE · Entity 8671 | Tax withholdingOrdinary Shares | 89 | $4.49 | $399.61 |
DisclosureSEC source: 0001415889-24-023889 · form4-09242024_070932.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,256 F1 · shares: Shares withheld by the Company to pay taxes due following the vesting of restricted stock units. Read SEC document |
| February 21, 2024 Filed Feb 23, 2024 16:19 UTC | Trinseo PLC TSE · Entity 8671 | GrantOrdinary Shares | 8,747 | $0.00 | $0.00 |
DisclosureSEC source: 0001415889-24-005015 · form4-02232024_090200.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP AND TREASURER 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,345 F1 · shares: Represents ordinary shares issuable pursuant to RSU awards that will vest in three equal annual installments beginning on the first anniversary of the date of grant. Read SEC document |
| February 25, 2023 Filed Feb 28, 2023 17:28 UTC | Trinseo PLC TSE · Entity 8671 | Tax withholdingOrdinary Shares | 1,434 | $24.30 | $34,846.20 |
DisclosureSEC source: 0001567619-23-003963 · doc1.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,598 F1 · shares: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. Read SEC document |
| February 22, 2023 Filed Feb 24, 2023 17:52 UTC | Trinseo PLC TSE · Entity 8671 | GrantOption to Purchase Ordinary Shares · Derivative | 2,250 | $0.00 Strike: $24.08 | $0.00 |
DisclosureSEC source: 0001567619-23-003781 · doc1.xml · derivative · entry 2 Frisch Johanna · CIK 0001904241 · VP and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,250 Underlying: Ordinary Shares · 2,250 shares Expires 2032-02-22 F2 · derivative.exercise_date: The option vests in three equal annual installments beginning on the first anniversary of the grant date. Read SEC document |
| February 22, 2023 Filed Feb 24, 2023 17:52 UTC | Trinseo PLC TSE · Entity 8671 | GrantOrdinary Shares | 2,367 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-23-003781 · doc1.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,032 F1 · shares: Represents ordinary shares issuable pursuant to RSU award that will vest in full on the third anniversary of the grant. Read SEC document |
| February 26, 2022 Filed Mar 1, 2022 16:34 UTC | Trinseo PLC TSE · Entity 8671 | Tax withholdingOrdinary Shares | 68 | $53.82 | $3,659.76 |
DisclosureSEC source: 0001179110-22-001798 · edgar.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · VP and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,665 F1 · shares: Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units. Read SEC document |
| February 16, 2022 Filed Feb 18, 2022 17:05 UTC | Trinseo PLC TSE · Entity 8671 | GrantOrdinary Shares · Derivative | 1,544 | $0.00 Strike: $58.64 | $0.00 |
DisclosureSEC source: 0001179110-22-001444 · edgar.xml · derivative · entry 2 Frisch Johanna · CIK 0001904241 · Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,544 Underlying: Ordinary Shares · 1,544 shares Expires 2031-02-16 F2 · derivative.exercise_date: The option vests in three equal annual installments beginning on the first anniversary of the grant date. Read SEC document |
| February 16, 2022 Filed Feb 18, 2022 17:05 UTC | Trinseo PLC TSE · Entity 8671 | GrantOrdinary Shares | 1,394 | $0.00 | $0.00 |
DisclosureSEC source: 0001179110-22-001444 · edgar.xml · nonDerivative · entry 1 Frisch Johanna · CIK 0001904241 · Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,733 F1 · shares: Represents ordinary shares issuable pursuant to RSU award that will vest in full on the third anniversary of the grant. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.