Trinseo PLC — 8-K Filings
193 8-K filings on record
This page lists all 8-K filings submitted to the SEC by Trinseo PLC (TSEOF), sorted by most recent first. Each row links to the full filing on EdgarLookup. Trinseo PLC has filed 193 8-K documents with the SEC since 2015. To view all SEC filings by Trinseo PLC, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
15-12B
25-NSE
3
4
4/A
424B3
424B4
424B7
8-A12B
8-K
8-K/A
8-K12B
ARS
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
F-1
F-1/A
FWP
PRE 14A
RW
S-1
S-1/A
S-3
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13G
SC 13G/A
SC TO-C
SC TO-I
SC TO-I/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | FORM 8-K | 0001104659-26-032793 | Mar 20, 2026 | Mar 19, 2026 |
| 8-K | FORM 8-K | 0001104659-26-032165 | Mar 19, 2026 | — |
| 8-K | 8-K | 0001104659-26-027521 | Mar 13, 2026 | — |
| 8-K | 8-K | 0001104659-26-022537 | Mar 3, 2026 | Mar 2, 2026 |
| 8-K | 8-K | 0001104659-26-015648 | Feb 17, 2026 | Feb 16, 2026 |
| 8-K | 8-K | 0001104659-26-004782 | Jan 20, 2026 | Jan 16, 2026 |
| 8-K | 8-K | 0001104659-26-002698 | Jan 12, 2026 | Jan 6, 2026 |
| 8-K | 8-K | 0001104659-25-120876 | Dec 15, 2025 | Dec 12, 2025 |
| 8-K | 8-K | 0001104659-25-119859 | Dec 10, 2025 | Dec 5, 2025 |
| 8-K | 8-K | 0001104659-25-107750 | Nov 6, 2025 | — |
| 8-K | 8-K | 0001104659-25-096964 | Oct 6, 2025 | — |
| 8-K | 8-K | 0001104659-25-096616 | Oct 3, 2025 | — |
| 8-K | 8-K | 0001558370-25-011764 | Aug 26, 2025 | — |
| 8-K | 8-K | 0001558370-25-010538 | Aug 6, 2025 | — |
| 8-K | 8-K | 0001558370-25-008889 | Jun 26, 2025 | Jun 25, 2025 |
| 8-K | 8-K | 0001558370-25-006778 | May 7, 2025 | — |
| 8-K | 8-K | 0001558370-25-004485 | Apr 4, 2025 | Apr 3, 2025 |
| 8-K | FORM 8-K | 0001104659-25-026175 | Mar 20, 2025 | — |
| 8-K | 8-K | 0001558370-25-000866 | Feb 12, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-004689 | Jan 21, 2025 | Jan 17, 2025 |
| 8-K | FORM 8-K | 0001104659-25-004557 | Jan 17, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-003924 | Jan 16, 2025 | Jan 15, 2025 |
| 8-K | FORM 8-K | 0001104659-24-129105 | Dec 17, 2024 | Dec 12, 2024 |
| 8-K | FORM 8-K | 0001104659-24-127417 | Dec 11, 2024 | Dec 9, 2024 |
| 8-K | FORM 8-K | 0001104659-24-126991 | Dec 10, 2024 | Dec 9, 2024 |
| 8-K | 8-K | 0001558370-24-014670 | Nov 6, 2024 | — |
| 8-K | 8-K | 0001558370-24-013089 | Sep 30, 2024 | Sep 26, 2024 |
| 8-K | 8-K | 0001558370-24-011104 | Aug 6, 2024 | — |
| 8-K | 8-K | 0001558370-24-009949 | Jul 22, 2024 | Jul 18, 2024 |
| 8-K | 8-K | 0001558370-24-009533 | Jun 27, 2024 | — |
| 8-K | 8-K | 0001558370-24-009512 | Jun 26, 2024 | — |
| 8-K | 8-K | 0001558370-24-007366 | May 8, 2024 | — |
| 8-K | 8-K | 0001558370-24-004612 | Apr 2, 2024 | Mar 28, 2024 |
| 8-K | 8-K | 0001558370-24-003114 | Mar 13, 2024 | — |
| 8-K | 8-K | 0001558370-24-001862 | Feb 27, 2024 | Feb 21, 2024 |
| 8-K | 8-K | 0001558370-24-000986 | Feb 12, 2024 | — |
| 8-K | 8-K | 0001558370-23-017600 | Nov 3, 2023 | — |
| 8-K | 8-K | 0001558370-23-015932 | Sep 22, 2023 | Sep 21, 2023 |
| 8-K | FORM 8-K | 0001104659-23-099167 | Sep 8, 2023 | — |
| 8-K | 8-K | 0001558370-23-015229 | Aug 23, 2023 | Aug 17, 2023 |
| 8-K | 8-K | 0001558370-23-015010 | Aug 16, 2023 | — |
| 8-K | 8-K | 0001558370-23-014383 | Aug 10, 2023 | Aug 9, 2023 |
| 8-K | 8-K | 0001558370-23-013249 | Aug 3, 2023 | — |
| 8-K | 8-K | 0001558370-23-012302 | Jul 26, 2023 | Jul 20, 2023 |
| 8-K | 8-K | 0001558370-23-012026 | Jul 20, 2023 | — |
| 8-K | 8-K | 0001558370-23-011167 | Jun 16, 2023 | Jun 14, 2023 |
| 8-K | 8-K | 0001558370-23-008229 | May 5, 2023 | — |
| 8-K | 8-K | 0001558370-23-008123 | May 4, 2023 | — |
| 8-K | 8-K | 0001558370-23-006154 | Apr 18, 2023 | Apr 13, 2023 |
| 8-K | 8-K | 0001558370-23-001032 | Feb 8, 2023 | — |