Trinseo (TSE) Insider Trading & Ownership $3.68 -0.21 (-5.40%) As of 12:52 PM Eastern Add Compare Share Share Insider Trades Stock AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Trinseo (NYSE:TSE) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage2.70%Number OfInsiders Buying(Last 12 Months)4Amount OfInsider Buying(Last 12 Months)$759,370.00Number OfInsiders Selling(Last 12 Months)0 Get TSE Insider Trade Alerts Want to know when executives and insiders are buying or selling Trinseo stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address TSE Insider Buying and Selling by Quarter Remove Ads Trinseo Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails3/14/2025Johanna FrischVPBuy1,500$4.10$6,150.00 3/12/2025Johanna FrischVPBuy1,200$4.28$5,136.00 8/19/2024Jeffrey J CoteDirectorBuy50,600$3.39$171,534.00 8/16/2024Jeffrey J CoteDirectorBuy100,000$2.81$281,000.00 8/12/2024Angelo N ChaclasSVPBuy75,000$2.57$192,750.00 8/12/2024Frank A BozichCEOBuy40,000$2.57$102,800.00 (Data available from 1/1/2013 forward) TSE Insider Trading Activity - Frequently Asked Questions Who is on Trinseo's Insider Roster? The list of insiders at Trinseo includes Angelo N Chaclas, David Phillip Stasse, Frank A Bozich, Jeanmarie F Desmond, Jeffrey J Cote, Johanna Frisch, and M&G Investment Management Ltd. Learn more on insiders at TSE. What percentage of Trinseo stock is owned by insiders? 2.70% of Trinseo stock is owned by insiders. Learn more on TSE's insider holdings. Which Trinseo insiders have been buying company stock? The following insiders have purchased TSE shares in the last 24 months: Angelo N Chaclas ($354,150.00), David Phillip Stasse ($133,350.00), Frank A Bozich ($167,360.00), Jeanmarie F Desmond ($19,850.00), Jeffrey J Cote ($452,534.00), and Johanna Frisch ($11,286.00). How much insider buying is happening at Trinseo? Insiders have purchased a total of 313,800 TSE shares in the last 24 months for a total of $1,138,530.00 bought. Trinseo Key ExecutivesMr. Frank A. Bozich (Age 64)President, CEO & Director Compensation: $1.64MMr. David P. Stasse (Age 54)Executive VP & CFO Compensation: $890.58kMr. Han Hendriksto (Age 57)Senior VP & Chief Technology Officer Compensation: $924.72kMr. Angelo N. Chaclas (Age 60)Senior VP, Chief Legal Officer, Chief Compliance Officer & Corporate Secretary Compensation: $789.84kMs. Paula M. Cooney (Age 55)Senior VP & Chief Human Resources Officer Compensation: $692.69kMr. Roger Greene (Age 47)VP, Controller & Principal Accounting Officer Andrew MyersFinance Director of Corporate FP&A and Director of Investor RelationsMs. Francesca Reverberi (Age 52)Senior VP of Engineered Materials & Chief Sustainability Officer Compensation: $953.23kMs. Lori WilcoxChief Audit ExecutiveMr. Jean-Luc Beal (Age 59)Senior Vice President of Engineered Materials More Insider Trading Tools from MarketBeat Related Companies VHI Insider Ownership ASPI Insider Ownership LXFR Insider Ownership ARQ Insider Ownership ORGN Insider Ownership AMTX Insider Ownership ALTO Insider Ownership LNZA Insider Ownership LODE Insider Ownership FSI Insider Ownership Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles Casey’s General Stores Insider Buys Shares of This Must-Own StockNVIDIA Insiders Sell: This Is What It Means for the Market Top 3 Insider Stock Buys in March—Are They Still Good in April?Grocery Outlet Insider and Institutional Buyers Signal BottomSentinelOne Insider Selling? 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