Over the past 12 months, 1 insider at Trinseo PLC filed 3 open-market SEC Form 4 transactions on TSE: 3 purchases worth $240K and 0 sales worth $0. Insiders have been net buyers over this period. The most recent filing was on Aug 14, 25.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 14, 25 | Matthew FarrellDirector | BUY | 48.6K | $2.43 | $118K |
| Aug 13, 25 | Matthew FarrellDirector | BUY | 26.4K | $2.45 | $65K |
| Aug 12, 25 | Matthew FarrellDirector | BUY | 25.0K | $2.29 | $57K |
| Mar 14, 25 | Johanna FrischVP AND TREASURER | BUY | 1.5K | $4.10 | $6K |
| Mar 13, 25 | Johanna FrischVP AND TREASURER | BUY | 1.1K | $4.02 | $4K |
| Mar 12, 25 | Johanna FrischVP AND TREASURER | BUY | 1.2K | $4.28 | $5K |
| Aug 19, 24 | Jeffrey J CoteDirector | BUY | 50.6K | $3.39 | $172K |
| Aug 16, 24 | Jeffrey J CoteDirector | BUY | 100.0K | $2.81 | $281K |
| Aug 13, 24 | Mark E TomkinsDirector | SELL | 11.1K | $2.54 | $28K |
| Aug 12, 24 | Frank A BozichCEO AND PRESIDENT | BUY | 40.0K | $2.57 | $103K |
| Aug 12, 24 | Angelo N. ChaclasSVP, CLO, CCO & CORP. SEC. | BUY | 75.0K | $2.57 | $193K |
| Dec 14, 23 | Matthew FarrellDirector | BUY | 50.0K | $7.21 | $361K |
| Sep 14, 23 | David Phillip StasseEVP AND CFO | BUY | 15.0K | $8.89 | $133K |
| Sep 13, 23 | Jeanmarie F. DesmondDirector | BUY | 2.5K | $7.94 | $20K |
| Sep 12, 23 | Frank A BozichCEO AND PRESIDENT | BUY | 8.0K | $8.07 | $65K |
| Sep 12, 23 | Angelo N. ChaclasSVP, CLO, CCO & CORP. SEC. | BUY | 20.0K | $8.07 | $161K |
| Sep 12, 23 | Timothy J ThomasSVP, MFCTG & OPER EXCELLENCE | BUY | 3.0K | $7.94 | $24K |
| Nov 16, 22 | Philip R MartensDirector | SELL | 6.9K | $24.60 | $170K |
| Sep 8, 22 | Jeanmarie F. DesmondDirector | BUY | 2.9K | $25.01 | $71K |
| Sep 7, 22 | Jeanmarie F. DesmondDirector | BUY | 1.3K | $25.46 | $34K |
| Aug 15, 22 | Jeffrey J CoteDirector | BUY | 10.0K | $31.76 | $318K |
| Jul 19, 22 | M&g Investment Management LtdTenPercentOwner | SELL | 3.0K | $43.51 | $131K |
| May 27, 22 | Bernard M SkeeteVP, CAO and Global Controller | SELL | 944 | $46.99 | $44K |
| May 25, 22 | Frank A BozichCEO and President | SELL | 21.0K | $43.61 | $914K |
| Apr 6, 22 | Frank A BozichCEO and President | SELL | 21.0K | $45.96 | $963K |
| Mar 14, 22 | Joseph AlvaradoDirector | BUY | 1.0K | $46.94 | $47K |
| Mar 9, 22 | Frank A BozichCEO and President | SELL | 12.0K | $48.13 | $578K |
| Feb 15, 22 | M&g Investment Management LtdTenPercentOwner | SELL | 3.0K | $57.57 | $173K |
| Feb 11, 22 | M&g Investment Management LtdTenPercentOwner | SELL | 3.0K | $58.76 | $176K |
| Feb 2, 22 | Frank A BozichCEO and President | SELL | 21.0K | $53.89 | $1.1M |
| Jan 5, 22 | Frank A BozichCEO and President | SELL | 21.0K | $56.62 | $1.2M |
| Nov 12, 21 | Alice HeezenSVP - Human Resources | SELL | 11.8K | $57.94 | $682K |
| Sep 15, 21 | Matthew FarrellDirector | BUY | 5.0K | $48.53 | $243K |
Over the past 12 months, insiders at Trinseo PLC filed 3 open-market purchases worth $240K and 0 sales worth $0 on TSE, which makes them net buyers over the period. The most recent Form 4 was filed on Aug 14, 25.
The largest recent open-market TSE insider purchase in our data was $361K by Matthew Farrell, Director, filed on Dec 14, 23.
1 different insider at Trinseo PLC filed open-market SEC Form 4 transactions on TSE over the last 12 months.
InsiderTape plots every TSE insider buy and sell directly on the price chart and flags new SEC Form 4 filings as they arrive, with cluster detection and buy/sell pressure. The data updates daily from SEC EDGAR.
InsiderTape plots every Trinseo PLC insider buy and sell on the price chart, with buy/sell pressure, cluster detection, and alerts the moment new Form 4s hit. Start a free 7-day trial, cancel anytime.
Does it work? In five years of data, insider clusters beat the Russell 2000 about 60% of the time and the CFO's buy was the sharpest signal of all. See the backtest →
START FREE TRIAL →