PINK:TSEOF

Trinseo Stock Insider Trading

*Your capital is at risk

$0.0130

+0 (+0%)

At Close: Aug 10, 2026

Trinseo Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 79.15. In total, the insiders bought 1.72M and sold 378.86K TSEOF shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	79.15
● Buy	1.72M shares
● Sell	378.86K shares
34% Buy Activity Strong Positive Correlation
Sell Signal Low Confidence Aug 10, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 79.15. Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jun 21, 2025 Sell	Ordinary Shares F-InKind	Brifo Victoria Director	Director	9 576 Value: $35.7K
Jun 21, 2025 Sell	Ordinary Shares F-InKind	Johnson Klynne Director	Director	10 474 Value: $39.1K
Jun 21, 2025 Sell	Ordinary Shares F-InKind	Desmond Jeanmarie F. Director	Director	10 343 Value: $38.6K
Jun 21, 2025 Sell	Ordinary Shares F-InKind	Alvarado Joseph Director	Director	10 327 Value: $38.5K
Mar 14, 2025 Buy	Ordinary Shares P-Purchase	Frisch Johanna Vp And Treasurer	Officer	1 500 Value: $6K
Mar 13, 2025 Buy	Ordinary Shares P-Purchase	Frisch Johanna Vp And Treasurer	Officer	1 100 Value: $4K
Mar 12, 2025 Buy	Ordinary Shares P-Purchase	Frisch Johanna Vp And Treasurer	Officer	1 200 Value: $5K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Bozich Frank A CEO And President	CEO / President	282 692 Value: $1.41M
Feb 27, 2025 Buy	Ordinary Shares A-Award	Chaclas Angelo N. SVP, Clo, Cco & Corp. Sec.	Officer	90 812 Value: $454.1K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Cooney Paula M. SVP, Chro	Officer	65 833 Value: $329.2K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Greene Roger Vp, Global Controller & Pao	Officer	23 077 Value: $115.4K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Hendriks Han SVP, Chief Technology Officer	Officer	46 707 Value: $233.5K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Reverberi Francesca SVP, Em And Polymer Solutions	Officer	78 389 Value: $391.9K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Schewe Rainer SVP, Supply Chain & Mfg Svcs	Officer	48 077 Value: $240.4K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Stasse David Phillip EVP And CFO	C-Suite Officer	123 745 Value: $618.7K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Van Kessel Bregje SVP, Corporate Finance & Ir	Officer	51 973 Value: $259.9K
Feb 27, 2025 Buy	Ordinary Shares A-Award	Yang Arthas Bing SVP, Latex Binders	Officer	31 542 Value: $157.7K
Feb 22, 2025 Sell	Ordinary Shares F-InKind	Schewe Rainer SVP, Supply Chain & Mfg Svcs	Officer	1 566 Value: $9K
Feb 22, 2025 Sell	Ordinary Shares F-InKind	Bozich Frank A CEO And President	CEO / President	18 795 Value: $103.7K
Feb 21, 2025 Sell	Ordinary Shares F-InKind	Yang Arthas Bing SVP, Latex Binders	Officer	2 844 Value: $15.7K
Feb 21, 2025 Sell	Ordinary Shares F-InKind	Van Kessel Bregje SVP, Corporate Finance & Ir	Officer	903 Value: $5K
Feb 21, 2025 Sell	Ordinary Shares F-InKind	Reverberi Francesca SVP, Em And Polymer Solutions	Officer	1 163 Value: $6K
Feb 21, 2025 Sell	Ordinary Shares F-InKind	Stasse David Phillip EVP And CFO	C-Suite Officer	6 558 Value: $36.2K
Feb 21, 2025 Sell	Ordinary Shares F-InKind	Schewe Rainer SVP, Supply Chain & Mfg Svcs	Officer	5 096 Value: $28.1K
Feb 21, 2025 Sell	Ordinary Shares F-InKind	Hendriks Han SVP, Chief Technology Officer	Officer	6 331 Value: $34.9K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks