Trinseo TSEOQ SEC Filings

OTC TSEOQ
$0.00 +0.00 (+0.00%)
At close: Nov 10, 2026 · 4:00 PM EST
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Trinseo PLC (TSEOQ) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
110-QQuarterly & Annual Report0001104659-26-124268Nov 9, 2026 2:55 PM
28-KCurrent Report0001104659-26-124192Nov 9, 2026 1:09 PM
3SCHEDULE 13GBeneficial Ownership Report0002012383-26-003727Oct 27, 2026 9:25 PM
48-KCurrent Report0001104659-26-119031Oct 27, 2026 2:44 PM
58-KCurrent Report0001104659-26-112217Sep 30, 2026 4:00 PM
68-KCurrent Report0001104659-26-109915Sep 23, 2026 5:30 PM
78-KCurrent Report0001104659-26-096792Aug 14, 2026 4:38 PM
8ARSOthers0001104659-26-092456Aug 7, 2026 2:20 PM
9DEFA14AOthers0001104659-26-092451Aug 7, 2026 2:16 PM
10DEF 14AOthers0001104659-26-092447Aug 7, 2026 2:13 PM
1110-QQuarterly & Annual Report0001104659-26-091910Aug 6, 2026 6:33 PM
128-KCurrent Report0001104659-26-091904Aug 6, 2026 6:22 PM
138-KCurrent Report0001104659-26-084626Jul 17, 2026 8:07 PM
148-KCurrent Report0001104659-26-073451Jun 12, 2026 8:09 PM
158-KCurrent Report0001104659-26-068944Jun 1, 2026 8:23 PM
168-KCurrent Report0001104659-26-066376May 26, 2026 9:27 PM
17SDOthers0001104659-26-065729May 22, 2026 8:15 PM
18SCHEDULE 13GBeneficial Ownership Report0000905148-26-002423May 15, 2026 9:48 PM
198-KCurrent Report0001104659-26-062804May 15, 2026 9:27 PM
204Insider Transaction0001220571-26-000002May 14, 2026 9:33 PM
214Insider Transaction0001713192-26-000003May 14, 2026 9:06 PM
224Insider Transaction0001196701-26-000001May 14, 2026 9:05 PM
234Insider Transaction0001047461-26-000001May 14, 2026 9:04 PM
244Insider Transaction0001532447-26-000001May 14, 2026 9:01 PM
254Insider Transaction0001867705-26-000001May 14, 2026 9:00 PM
264Insider Transaction0001196053-26-000001May 14, 2026 8:59 PM
274Insider Transaction0001207044-26-000001May 14, 2026 8:59 PM
288-KCurrent Report0001104659-26-060590May 14, 2026 10:10 AM
298-KCurrent Report0001104659-26-053165Apr 30, 2026 9:13 PM
3010-QQuarterly & Annual Report0001104659-26-052646Apr 30, 2026 6:03 PM
318-KCurrent Report0001104659-26-052333Apr 30, 2026 2:18 PM
3210-KQuarterly & Annual Report0001104659-26-049440Apr 27, 2026 8:13 PM
338-KCurrent Report0001104659-26-043485Apr 15, 2026 11:35 AM
348-KCurrent Report0001104659-26-042351Apr 13, 2026 12:04 PM
358-KCurrent Report0001104659-26-032793Mar 20, 2026 9:15 PM
368-KCurrent Report0001104659-26-032165Mar 19, 2026 9:06 PM
3725-NSEOthers0000876661-26-000266Mar 18, 2026 11:16 AM
388-KCurrent Report0001104659-26-027521Mar 13, 2026 3:39 PM
3910-KQuarterly & Annual Report0001104659-26-027518Mar 13, 2026 3:27 PM
404Insider Transaction0002011504-26-000002Mar 3, 2026 7:26 PM
414Insider Transaction0001949985-26-000002Mar 3, 2026 7:26 PM
424Insider Transaction0001661138-26-000002Mar 3, 2026 7:25 PM
434Insider Transaction0001811002-26-000002Mar 3, 2026 7:24 PM
444Insider Transaction0001946359-26-000002Mar 3, 2026 7:24 PM
454Insider Transaction0001994764-26-000002Mar 3, 2026 7:22 PM
464Insider Transaction0001670565-26-000002Mar 3, 2026 7:22 PM
474Insider Transaction0001629821-26-000002Mar 3, 2026 7:21 PM
484Insider Transaction0001441657-26-000002Mar 3, 2026 7:21 PM
494Insider Transaction0001660737-26-000002Mar 3, 2026 7:20 PM
508-KCurrent Report0001104659-26-022537Mar 3, 2026 12:00 PM
...

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