Trinseo PLC - TSE
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 47
Latest filed: Jun 12, 2026
| Form | Count |
|---|---|
| 4 | 28 |
| 8-K | 15 |
| SCHEDULE 13G/A | 2 |
| 8-K/A | 1 |
| SCHEDULE 13G | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Jun 12, 2026 | 8-K/A | May 28, 2026 | 0001104659-26-073451 | View |
| Jun 01, 2026 | 8-K | May 28, 2026 | 0001104659-26-068944 | View |
| May 26, 2026 | 8-K | May 25, 2026 | 0001104659-26-066376 | View |
| May 15, 2026 | SCHEDULE 13G/A | — | 0000905148-26-002423 | View |
| May 15, 2026 | 8-K | May 15, 2026 | 0001104659-26-062804 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001220571-26-000002 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001207044-26-000001 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001196053-26-000001 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001867705-26-000001 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001532447-26-000001 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001047461-26-000001 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001196701-26-000001 | View |
| May 14, 2026 | 4 | May 12, 2026 | 0001713192-26-000003 | View |
| May 14, 2026 | 8-K | May 13, 2026 | 0001104659-26-060590 | View |
| Apr 30, 2026 | 8-K | Apr 30, 2026 | 0001104659-26-053165 | View |
| Apr 30, 2026 | 8-K | Apr 30, 2026 | 0001104659-26-052333 | View |
| Apr 15, 2026 | 8-K | Apr 14, 2026 | 0001104659-26-043485 | View |
| Apr 13, 2026 | 8-K | Apr 10, 2026 | 0001104659-26-042351 | View |
| Mar 20, 2026 | 8-K | Mar 19, 2026 | 0001104659-26-032793 | View |
| Mar 19, 2026 | 8-K | Mar 19, 2026 | 0001104659-26-032165 | View |
| Mar 13, 2026 | 8-K | Mar 13, 2026 | 0001104659-26-027521 | View |
| Mar 03, 2026 | 8-K | Mar 02, 2026 | 0001104659-26-022537 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001660737-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001441657-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001629821-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001670565-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001994764-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001946359-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001811002-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001661138-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0001949985-26-000002 | View |
| Mar 03, 2026 | 4 | Feb 27, 2026 | 0002011504-26-000002 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001629821-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 22, 2026 | 0001660737-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001441657-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001994764-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001670565-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001661138-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001949985-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0002011504-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001946359-26-000001 | View |
| Feb 24, 2026 | 4 | Feb 21, 2026 | 0001811002-26-000001 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0000919574-26-001251 | View |
| Feb 17, 2026 | 8-K | Feb 16, 2026 | 0001104659-26-015648 | View |
| Feb 12, 2026 | SCHEDULE 13G | — | 0000884546-26-000012 | View |
| Jan 20, 2026 | 8-K | Jan 16, 2026 | 0001104659-26-004782 | View |
| Jan 12, 2026 | 8-K | Jan 06, 2026 | 0001104659-26-002698 | View |