Top Holder
CASPER MARC N
Insiders Tracked
31
Latest Activity
2025-12-31
SVP and General Counsel
Total Shares
52,375.947
Last Reported
2025-03-10
| Security Title | Amount Owned | Ownership | Date Reported | Filing | Security Type |
|---|---|---|---|---|---|
Common Stock | 10,815.947 | Direct | 2025-03-10 | View Filing | nonDerivative |
Stock Option (Right to Buy)Conv/Ex Price: $528.58Exp: 2030-02-23 | 3,984 | Direct | 2022-02-23 | View Filing | derivative |
Stock Option (Right to Buy)Conv/Ex Price: $458.81Exp: 2028-02-23 | 4,080 | Direct | 2021-02-23 | View Filing | derivative |
Stock Option (Right to Buy)Conv/Ex Price: $548.40Exp: 2031-02-22 | 3,766 | Direct | 2023-02-22 | View Filing | derivative |
Stock Option (Right to Buy)Conv/Ex Price: $552.85Exp: 2032-02-21 | 4,990 | Direct | 2024-02-21 | View Filing | derivative |
Stock Option (Right to Buy)Conv/Ex Price: $418.32Exp: 2027-09-09 | 11,440 | Direct | 2024-02-21 | View Filing | derivative |
Stock Option (Right to Buy)Conv/Ex Price: $253.99Exp: 2026-02-26 | 7,450 | Direct | 2019-02-26 | View Filing | derivative |
Stock Option (Right to Buy)Conv/Ex Price: $309.63Exp: 2027-02-25 | 5,850 | Direct | 2020-02-25 | View Filing | derivative |
Sr. VP and Chief HR Officer
Total Shares
34,855.227
Last Reported
2025-11-12
Chairman & CEO
Total Shares
734,984.285
Last Reported
2025-10-27
Director
Total Shares
2,964
Last Reported
2025-05-21
Director
Total Shares
14,817
Last Reported
2025-05-21
Senior Vice President
Total Shares
52,693
Last Reported
2019-08-28
Director
Total Shares
9,033
Last Reported
2025-05-21
VP & Chief Accounting Officer
Total Shares
21,153.87
Last Reported
2021-02-26
Senior Vice President
Total Shares
44,417
Last Reported
2019-08-28
VP & Chief Accounting Officer
Total Shares
5,712.982
Last Reported
2025-08-29
Insider activity at TMO in 2026 has focused on long-term equity retention. By monitoring SEC Form 4 filings, you can see if executives are increasing their skin in the game through RSU vests or diversifying their portfolios through scheduled sales.
You can track all TMO insider holdings right here on Insider Worth. We aggregate SEC Form 4 filings to show you the real-time portfolio of stocks, RSUs, and options held by every TMO executive and director.
Direct Ownership means the shares are held in the insider's own name. Indirect Ownership means the shares are held through a trust, family member, 401(k), or another entity. Both represent the insider's economic interest in TMO.
RSUs are a form of compensation where an employer promises to give shares to an employee in the future, usually after a vesting period. Unlike options, RSUs always have value unless the stock price drops to zero.
Insiders sell for many reasons: tax planning, diversifying assets, or personal liquidity. While buying stock often signals confidence, selling doesn't always mean they lack faith in TMO. It's important to look for patterns or large clusters of selling across the executive team.
A Form 4 is a document filed with the SEC whenever there is a change in an insider's ownership of company stock. It must be filed within two business days of the transaction. Insider Worth aggregates these filings to show you the complete picture of executive holdings.