Trinseo TSEOQ SEC Filings

OTC TSEOQ
$0.00 +0.00 (+0.00%)
At close: Oct 20, 2026 · 4:00 PM EDT
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
18-KCurrent Report0001104659-26-112217Sep 30, 2026 12:00 PM
28-KCurrent Report0001104659-26-109915Sep 23, 2026 1:30 PM
38-KCurrent Report0001104659-26-096792Aug 14, 2026 4:38 PM
4ARSOthers0001104659-26-092456Aug 7, 2026 2:20 PM
5DEFA14AOthers0001104659-26-092451Aug 7, 2026 2:16 PM
6DEF 14AOthers0001104659-26-092447Aug 7, 2026 2:13 PM
710-QQuarterly & Annual Report0001104659-26-091910Aug 6, 2026 6:33 PM
88-KCurrent Report0001104659-26-091904Aug 6, 2026 6:22 PM
98-KCurrent Report0001104659-26-084626Jul 17, 2026 8:07 PM
108-KCurrent Report0001104659-26-073451Jun 12, 2026 4:09 PM
118-KCurrent Report0001104659-26-068944Jun 1, 2026 8:23 PM
128-KCurrent Report0001104659-26-066376May 26, 2026 5:27 PM-
13SDOthers0001104659-26-065729May 22, 2026 4:15 PM-
14SCHEDULE 13GBeneficial Ownership Report0000905148-26-002423May 15, 2026 9:48 PM
158-KCurrent Report0001104659-26-062804May 15, 2026 9:27 PM
164Insider Transaction0001220571-26-000002May 14, 2026 9:33 PM
174Insider Transaction0001713192-26-000003May 14, 2026 9:06 PM
184Insider Transaction0001196701-26-000001May 14, 2026 9:05 PM
194Insider Transaction0001047461-26-000001May 14, 2026 9:04 PM
204Insider Transaction0001532447-26-000001May 14, 2026 9:01 PM
214Insider Transaction0001867705-26-000001May 14, 2026 9:00 PM
224Insider Transaction0001196053-26-000001May 14, 2026 8:59 PM
234Insider Transaction0001207044-26-000001May 14, 2026 8:59 PM
248-KCurrent Report0001104659-26-060590May 14, 2026 6:10 AM-
258-KCurrent Report0001104659-26-053165Apr 30, 2026 5:13 PM
268-KCurrent Report0001104659-26-053165Apr 30, 2026 5:13 PM
278-KCurrent Report0001104659-26-053165Apr 30, 2026 5:13 PM
2810-QQuarterly & Annual Report0001104659-26-052646Apr 30, 2026 2:03 PM
2910-QQuarterly & Annual Report0001104659-26-052646Apr 30, 2026 2:03 PM
3010-QQuarterly & Annual Report0001104659-26-052646Apr 30, 2026 2:03 PM
318-KCurrent Report0001104659-26-052333Apr 30, 2026 10:18 AM
328-KCurrent Report0001104659-26-052333Apr 30, 2026 10:18 AM
338-KCurrent Report0001104659-26-052333Apr 30, 2026 10:18 AM
3410-KQuarterly & Annual Report0001104659-26-049440Apr 27, 2026 8:13 PM
358-KCurrent Report0001104659-26-043485Apr 15, 2026 11:35 AM
368-KCurrent Report0001104659-26-042351Apr 13, 2026 12:04 PM
378-KCurrent Report0001104659-26-032793Mar 20, 2026 9:15 PM
388-KCurrent Report0001104659-26-032165Mar 19, 2026 9:06 PM
3925-NSEOthers0000876661-26-000266Mar 18, 2026 11:16 AM
408-KCurrent Report0001104659-26-027521Mar 13, 2026 3:39 PM
4110-KQuarterly & Annual Report0001104659-26-027518Mar 13, 2026 3:27 PM
424Insider Transaction0002011504-26-000002Mar 3, 2026 7:26 PM
434Insider Transaction0002011504-26-000002Mar 3, 2026 7:26 PM
444Insider Transaction0002011504-26-000002Mar 3, 2026 7:26 PM
454Insider Transaction0001949985-26-000002Mar 3, 2026 7:26 PM
464Insider Transaction0001949985-26-000002Mar 3, 2026 7:26 PM
474Insider Transaction0001949985-26-000002Mar 3, 2026 7:26 PM
484Insider Transaction0001661138-26-000002Mar 3, 2026 7:25 PM
494Insider Transaction0001661138-26-000002Mar 3, 2026 7:25 PM
504Insider Transaction0001661138-26-000002Mar 3, 2026 7:25 PM
...

Trinseo PLC SEC Filings API

Pull Trinseo PLC's SEC filing index, with links to every filing and exhibit, into your own tools with the Business Quant SEC Filings API. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/secfilings?ticker=TSEOQ&formtype=10-K,10-Q&api_key=YOUR_API_KEY