Marc N Casper - Net Worth and Insider Trading
Marc N Casper Net Worth
The estimated net worth of Marc N Casper is at least $65 Million dollars as of 2025-04-12. Marc N Casper is the Chairman & CEO of Thermo Fisher Scientific Inc and owns about 146,082 shares of Thermo Fisher Scientific Inc (TMO) stock worth over $64 Million. Marc N Casper is also the Director of Synopsys Inc and owns about 1,835 shares of Synopsys Inc (SNPS) stock worth over $772,920. Details can be seen in Marc N Casper's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Marc N Casper has not made any transactions after 2025-03-05 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Marc N Casper
Marc N Casper Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Marc N Casper owns 4 companies in total, including Thermo Fisher Scientific Inc (TMO) , U.S. Bancorp (USB) , and Zimmer Biomet Holdings Inc (ZBH) among others .
Click here to see the complete history of Marc N Casper’s form 4 insider trades.
Insider Ownership Summary of Marc N Casper
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
TMO | Thermo Fisher Scientific Inc | 2025-03-05 | Senior Vice President |
USB | U.S. Bancorp | 2016-03-01 | director |
ZBH | Zimmer Biomet Holdings Inc | 2009-02-23 | director |
![]() | ![]() | 2024-03-25 | director |
Marc N Casper Latest Holdings Summary
Marc N Casper currently owns a total of 2 stocks. Among these stocks, Marc N Casper owns 146,082 shares of Thermo Fisher Scientific Inc (TMO) as of March 5, 2025, with a value of $64 Million and a weighting of 98.81%. Marc N Casper also owns 1,835 shares of Synopsys Inc (SNPS) as of March 25, 2024, with a value of $772,920 and a weighting of 1.19%.
Latest Holdings of Marc N Casper
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
TMO | Thermo Fisher Scientific Inc | 2025-03-05 | 146,082 | 438.15 | 64,005,828 |
SNPS | Synopsys Inc | 2024-03-25 | 1,835 | 421.21 | 772,920 |
Holding Weightings of Marc N Casper
Marc N Casper Form 4 Trading Tracker
According to the SEC Form 4 filings, Marc N Casper has made a total of 50 transactions in Thermo Fisher Scientific Inc (TMO) over the past 5 years, including 0 buys and 50 sells. The most-recent trade in Thermo Fisher Scientific Inc is the sale of 18,000 shares on March 5, 2025, which brought Marc N Casper around $9 Million.
According to the SEC Form 4 filings, Marc N Casper has made a total of 1 transactions in Synopsys Inc (SNPS) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Synopsys Inc is the acquisition of 750 shares on March 25, 2024, which cost Marc N Casper around $439,088.
Insider Trading History of Marc N Casper
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Marc N Casper Trading Performance
GuruFocus tracks the stock performance after each of Marc N Casper's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Marc N Casper is 9.57%. GuruFocus also compares Marc N Casper's trading performance to market benchmark return within the same time period. The performance of stocks bought by Marc N Casper within 3 months outperforms 1 times out of 2 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Marc N Casper's insider trading performs compared to the benchmark.
Performance of Marc N Casper
Marc N Casper Ownership Network
Ownership Network List of Marc N Casper
Ownership Network Relation of Marc N Casper

Marc N Casper Owned Company Details
What does Thermo Fisher Scientific Inc do?
Who are the key executives at Thermo Fisher Scientific Inc?
Marc N Casper is the Senior Vice President of Thermo Fisher Scientific Inc. Other key executives at Thermo Fisher Scientific Inc include Sr. VP and Gen. Counsel Michael A Boxer , Sr. VP and CFO Stephen Williamson , and Executive Vice President Gianluca Pettiti .
Thermo Fisher Scientific Inc (TMO) Insider Trades Summary
Over the past 18 months, Marc N Casper made 21 insider transaction in Thermo Fisher Scientific Inc (TMO) with a net sale of 316,297. Other recent insider transactions involving Thermo Fisher Scientific Inc (TMO) include a net sale of 24,341 shares made by Michael A Boxer , a net sale of 900 shares made by Gianluca Pettiti , and a net sale of 41,575 shares made by Stephen Williamson .
In summary, during the past 3 months, insiders sold 60,041 shares of Thermo Fisher Scientific Inc (TMO) in total and bought 0 shares, with a net sale of 60,041 shares. During the past 18 months, 440,422 shares of Thermo Fisher Scientific Inc (TMO) were sold and 20 shares were bought by its insiders, resulting in a net sale of 440,402 shares.
Thermo Fisher Scientific Inc (TMO)'s detailed insider trading history can be found in Insider Trading Tracker table.
Thermo Fisher Scientific Inc Insider Transactions
Marc N Casper Mailing Address
Above is the net worth, insider trading, and ownership report for Marc N Casper. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Marc N Casper's mailing address is: Waltham Ma 02451.