Trinseo (TSEOQ) Shares Outstanding (Diluted) (2013 - 2026)
Trinseo (TSEOQ) recorded Shares Outstanding (Diluted) of 36.6 million in Q2 2026, up 2.5% from 35.7 million a year earlier and up 1.1% from the prior quarter.
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Analysis
Trinseo (TSEOQ) Shares Outstanding (Diluted) (2013 - 2026) Analysis & Trends
For FY2025, Trinseo reported Shares Outstanding (Diluted) of 35.8 million, up 1.4% from FY2024.
- Annual Shares Outstanding (Diluted) has a five-year compound annual growth rate of -1.5% (FY2020 to FY2025).
- Across earlier years, Shares Outstanding (Diluted) came in at 35.3 million in FY2024 (unchanged), 35.3 million in FY2023 (-1.7%), 35.9 million in FY2022 (-9.3%) and 39.6 million in FY2021 (+2.6%).
- The Q2 2026 figure is the highest quarterly Shares Outstanding (Diluted) since Q2 2022.
- On a year-over-year basis, Shares Outstanding (Diluted) has increased for six consecutive quarters, with growth averaging 1.2% over the last eight quarters.
- Peak year-over-year performance for Shares Outstanding (Diluted) in the last five years was growth of 2.9% in Q3 2021, against a decline of 10.9% in Q3 2022 at the low end.
- Per Business Quant, the preceding three quarters came in at 36.2 million (Q1 2026), 35.8 million (Q4 2025) and 36 million (Q3 2025).
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Historic Data
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Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 36.60 Mn |
| Jun 30, 2026 | 36.60 Mn |
| Mar 31, 2026 | 36.20 Mn |
| Dec 31, 2025 | 35.80 Mn |
| Sep 30, 2025 | 36.00 Mn |
| Jun 30, 2025 | 35.70 Mn |
| Mar 31, 2025 | 35.50 Mn |
| Dec 31, 2024 | 35.30 Mn |
| Sep 30, 2024 | 35.40 Mn |
| Jun 30, 2024 | 35.30 Mn |
| Mar 31, 2024 | 35.30 Mn |
| Dec 31, 2023 | 35.30 Mn |
| Sep 30, 2023 | 35.20 Mn |
| Jun 30, 2023 | 35.20 Mn |
| Mar 31, 2023 | 35.00 Mn |
| Dec 31, 2022 | 35.90 Mn |
| Sep 30, 2022 | 35.20 Mn |
| Jun 30, 2022 | 37.00 Mn |
| Mar 31, 2022 | 38.10 Mn |
| Dec 31, 2021 | 39.60 Mn |
API Access
Trinseo Shares Outstanding (Diluted) API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=TSEOQ&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "TSEOQ", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=TSEOQ&period=max&api_key=YOUR_API_KEY");
const data = await res.json();