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Dion J. Weisler currently holds 65,841 shares of THERMO FISHER SCIENTIFIC INC. (TMO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Dion J. Weisler has been a net seller of TMO stock. They have purchased $1.2M and sold $66.1M worth of shares.
Dion J. Weisler's most recent insider trade was on May 7, 2026, when they sold 12,552 shares at $0.00 per share.
Dion J. Weisler serves as Executive at THERMO FISHER SCIENTIFIC INC. (TMO). They have executed 136 insider transactions totaling $67.3M over their tenure at the company.
Dion J. Weisler holds the position of Executive at THERMO FISHER SCIENTIFIC INC., where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 12 years and currently hold a stake valued at $0.
Dion J. Weisler has shown a selling trading pattern, with $1.2M in total purchases and $66.1M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by Dion J. Weisler was on Dec 7, 2019, when they sold $2.9M worth of HPQ shares. This transaction involved 141,497 shares at $20.50 per share.
Dion J. Weisler currently owns 65,841 shares of THERMO FISHER SCIENTIFIC INC. (TMO), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Dion J. Weisler's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Dion J. Weisler has 136 Form 4 filings on record as an insider at THERMO FISHER SCIENTIFIC INC..
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