Trinseo PLC Insider Trading Activity
Every SEC Form 4 insider transaction reported for Trinseo PLC (TSEOQ), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are TSEOQ insiders buying or selling?
Trinseo PLC insiders reported no open-market purchases or sales in the last 12 months. Since February 2018, Trabud has recorded 101 Form 4 filings for TSEOQ: 23 buys ($5.1M) and 78 sells ($27.9M).
Source: SEC EDGAR Form 4
Key Statistics (February 2018 – Aug 14, 2025)
Total Form 4 filings
101
SEC EDGAR
Insider filers
24
Insider buys (23)
$5.1M
Insider sells (78)
$27.9M
Insider sentiment
Net sellingNet insider flow of $22.8M in net selling since February 2018.
Recent TSEOQ insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 14, 2025 | Matthew Farrell | Director | Purchase | 100.0K | $2.40 | $240.0K | SEC ↗ |
| Mar 14, 2025 | Johanna Frisch | VP AND TREASURER | Purchase | 3.8K | $4.13 | $15.7K | SEC ↗ |
| Aug 20, 2024 | Jeffrey J Cote | Director | Purchase | 150.6K | $3.00 | $452.5K | SEC ↗ |
| Aug 14, 2024 | Mark E Tomkins | Director | Sale | 11.1K | $2.54 | $28.3K | SEC ↗ |
| Aug 14, 2024 | Frank A Bozich | CEO AND PRESIDENT | Purchase | 40.0K | $2.57 | $102.8K | SEC ↗ |
| Aug 14, 2024 | Angelo N. Chaclas | SVP, CLO, CCO & CORP. SEC. | Purchase | 75.0K | $2.57 | $192.8K | SEC ↗ |
| Dec 18, 2023 | Matthew Farrell | Director | Purchase | 50.0K | $7.21 | $360.5K | SEC ↗ |
| Sep 18, 2023 | David Phillip Stasse | EVP AND CFO | Purchase | 15.0K | $8.89 | $133.3K | SEC ↗ |
| Sep 13, 2023 | Jeanmarie F. Desmond | Director | Purchase | 2.5K | $7.94 | $19.9K | SEC ↗ |
| Sep 13, 2023 | Angelo N. Chaclas | SVP, CLO, CCO & CORP. SEC. | Purchase | 20.0K | $8.07 | $161.4K | SEC ↗ |
| Sep 13, 2023 | Timothy J Thomas | SVP, MFCTG & OPER EXCELLENCE | Purchase | 3.0K | $7.94 | $23.8K | SEC ↗ |
| Sep 13, 2023 | Frank A Bozich | CEO AND PRESIDENT | Purchase | 8.0K | $8.07 | $64.6K | SEC ↗ |
| Nov 18, 2022 | Philip R Martens | Director | Sale | 6.9K | $24.60 | $169.7K | SEC ↗ |
| Sep 9, 2022 | Jeanmarie F. Desmond | Director | Purchase | 4.2K | $25.15 | $105.3K | SEC ↗ |
| Aug 16, 2022 | Jeffrey J Cote | Director | Purchase | 10.0K | $31.76 | $317.6K | SEC ↗ |
| Jul 20, 2022 | M&G INVESTMENT MANAGEMENT LTD | 10% Owner | Sale | 3.0K | $43.51 | $130.5K | SEC ↗ |
| May 31, 2022 | Bernard M Skeete | VP, CAO and Global Controller | Sale | 944 | $46.99 | $44.4K | SEC ↗ |
| May 26, 2022 | Frank A Bozich | CEO and President | Sale | 21.0K | $43.61 | $913.9K | SEC ↗ |
| Apr 8, 2022 | Frank A Bozich | CEO and President | Sale | 21.0K | $45.96 | $963.2K | SEC ↗ |
| Mar 16, 2022 | ALVARADO JOSEPH | Director | Purchase | 1.0K | $46.94 | $46.9K | SEC ↗ |
| Mar 9, 2022 | Frank A Bozich | CEO and President | Sale | 12.0K | $48.13 | $577.6K | SEC ↗ |
| Feb 16, 2022 | M&G INVESTMENT MANAGEMENT LTD | 10% Owner | Sale | 3.0K | $57.57 | $172.7K | SEC ↗ |
| Feb 14, 2022 | M&G INVESTMENT MANAGEMENT LTD | 10% Owner | Sale | 3.0K | $58.76 | $176.3K | SEC ↗ |
| Feb 4, 2022 | Frank A Bozich | CEO and President | Sale | 21.0K | $53.89 | $1.1M | SEC ↗ |
| Jan 7, 2022 | Frank A Bozich | CEO and President | Sale | 21.0K | $56.62 | $1.2M | SEC ↗ |
Showing the 25 most recent of 101 Form 4 filings for Trinseo PLC.
Most active TSEOQ insiders
- M&G INVESTMENT MANAGEMENT LTD46 filings
- Frank A Bozich9 filings
- Angelo N. Chaclas7 filings
- David Phillip Stasse4 filings
- Matthew Farrell4 filings
Ask anything about TSEOQ insider activity
Use Trabud's AI agent to query Trinseo PLC's Form 4 history in plain English — "Show me TSEOQ CEO purchases this year" or compare it against any other ticker.
Open the AI agentTSEOQ insider trading FAQ
Are Trinseo PLC insiders buying or selling?
Trinseo PLC insiders reported no open-market purchases or sales in the last 12 months. Since February 2018, Trabud has recorded 101 Form 4 filings for TSEOQ: 23 buys ($5.1M) and 78 sells ($27.9M). Over the full record that is net selling of $22.8M.
How many insiders trade TSEOQ stock?
24 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Trinseo PLC. The most recent filing was accepted on Aug 14, 2025.
Where does Trabud get TSEOQ insider trading data?
All TSEOQ insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.