OTC · TSEOQ

Trinseo PLC

Closing price No closing price on file for TSEOQ from our free price source.

Latest quarter · ended Sep 30, 2026

Sales grew and cash improved

descriptionFiled Nov 9, 2026
Revenue growthSlower
+4.8%
Quarter ended Dec 31, 2024: −1.9% sales vs. a year beforeQuarter ended Mar 31, 2025: −13.2% sales vs. a year beforeQuarter ended Jun 30, 2025: −14.7% sales vs. a year beforeQuarter ended Sep 30, 2025: −14.3% sales vs. a year beforeQuarter ended Dec 31, 2025: −19.3% sales vs. a year beforeQuarter ended Mar 31, 2026: −7.7% sales vs. a year beforeQuarter ended Jun 30, 2026: +7.8% sales vs. a year beforeQuarter ended Sep 30, 2026: +4.8% sales vs. a year before
Dec '24Sep '26
$779M vs. $743M a year ago
Gross marginBetter
6.8%
Quarter ended Dec 31, 2024: 6.8% gross marginQuarter ended Mar 31, 2025: 8.1% gross marginQuarter ended Jun 30, 2025: 4.7% gross marginQuarter ended Sep 30, 2025: 5.0% gross marginQuarter ended Dec 31, 2025: 4.2% gross marginQuarter ended Mar 31, 2026: 8.5% gross marginQuarter ended Jun 30, 2026: 11.8% gross marginQuarter ended Sep 30, 2026: 6.8% gross margin
Dec '24Sep '26
vs. 5.0% a year ago
Cash from operationsBetter
$25.9M
Quarter ended Dec 31, 2024: $85.1M cash from operationsQuarter ended Mar 31, 2025: −$110M cash from operationsQuarter ended Jun 30, 2025: $6.8M cash from operationsQuarter ended Sep 30, 2025: −$21.6M cash from operationsQuarter ended Dec 31, 2025: $22.6M cash from operationsQuarter ended Mar 31, 2026: −$233M cash from operationsQuarter ended Jun 30, 2026: −$115M cash from operationsQuarter ended Sep 30, 2026: $25.9M cash from operations
Dec '24Sep '26
vs. −$21.6M a year ago
Share countSteady
+1.6%
Quarter ended Dec 31, 2024: 35.48M sharesQuarter ended Mar 31, 2025: 35.65M sharesQuarter ended Jun 30, 2025: 35.95M sharesQuarter ended Sep 30, 2025: 35.99M sharesQuarter ended Dec 31, 2025: 36.56M sharesQuarter ended Mar 31, 2026: 36.56M sharesQuarter ended Jun 30, 2026: 36.56M sharesQuarter ended Sep 30, 2026: 36.56M shares
Dec '24Sep '26
36.56M shares vs. 35.99M a year ago

Numbers come from the company's own 10-Q and 10-K reports filed with the SEC. Each bar is one quarter, oldest on the left. The colored bar is the latest. Hover over or tap a bar to see its number.

Smart money pulse

What insiders and funds are doing

Mixed Insiders: as of Nov 13
−1000+100 0
  • info
    No real insider sales in 12 months. Planned 10b5-1 sales and tax withholding are left out.

−100 means everyone selling, +100 everyone buying. This is data, not advice.

How the Pulse works

Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then.

Insider trades · last 12 months

Real buys and sales

No open-market buys or sales by officers or directors in the last 12 months. Hidden: 28 tax withholdings. Press All filings to see them.

● Open-market buy● Open-market sale
CEOCFOOther officersDirectorsDecJanFebMarAprMayJunJulAugSepOctNovShares withheld for tax · Feb 21 · $10.8K · 8 peopleShares withheld for tax · Feb 21 · $1.66KShares withheld for tax · Feb 22 · $10.8KShares withheld for tax · Feb 22 · $5.11K · 7 peopleShares withheld for tax · Feb 22 · $3.19KShares withheld for tax · Feb 27 · $5.45KShares withheld for tax · Feb 27 · $9.09K · 8 peopleShares withheld for tax · Feb 27 · $2.38KCode J · May 12 · 339,872 sh · 8 people
CEOCFOOther officersDirectorsJunJulAugSepOctNov

Last 6 months. A wider screen shows 12.

Showing 0 real trades. Hidden: 28 tax withholdings. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.

Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.

Top holders

Biggest funds in TSEOQ

No 13F holdings loaded for this stock.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

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