Marc N Casper Insider Trading Activity
Marc N Casper has been net-selling over the last 12 months with 0 purchases and 81 sales across 1 company.
TMO is the most-traded position with 81 trades. The largest single transaction was a sale of TMO for $4.2M on Oct 24, 2025.
Performance Scorecard
Forward stock performance after each transaction by Marc N Casper. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -1.3% | 49% | 74 |
| 90 days | — | -7.7% | 41% | 74 |
| 120 days | — | -7.5% | 26% | 74 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersTMO · THERMO FISHER SCIENTIFIC INC.
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Showing the 50 most recent of 109 disclosed trades.
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Aug 24, 2026 | TMO | Sell | 33 | $626.59 | $21K | −0.0% | CEO | |
Aug 24, 2026 | TMO | Sell | 62 | $628.74 | $39K | −0.1% | CEO | |
Aug 24, 2026 | TMO | Sell | 79 | $628.01 | $50K | −0.1% | CEO | |
Aug 24, 2026 | TMO | Sell | 101 | $625.41 | $63K | −0.1% | CEO | |
Aug 21, 2026 | TMO | Sell | 2,147 | $628.61 | $1.3M | −1.7% | CEO | |
Aug 21, 2026 | TMO | Sell | 321 | $629.10 | $202K | −0.3% | CEO | |
Aug 21, 2026 | TMO | Sell | 3,014 | $626.51 | $1.9M | −2.3% | CEO | |
Aug 21, 2026 | TMO | Sell | 1,791 | $627.39 | $1.1M | −1.4% | CEO | |
Aug 21, 2026 | TMO | Sell | 2,727 | $625.46 | $1.7M | −2.0% | CEO | |
Aug 20, 2026 | TMO | Sell | 909 | $625.45 | $569K | −0.7% | CEO | |
Aug 20, 2026 | TMO | Sell | 80 | $633.99 | $51K | −0.1% | CEO | |
Aug 20, 2026 | TMO | Sell | 1,430 | $632.01 | $904K | −1.1% | CEO | |
Aug 20, 2026 | TMO | Sell | 821 | $626.83 | $515K | −0.6% | CEO | |
Aug 20, 2026 | TMO | Sell | 1,314 | $627.66 | $825K | −1.0% | CEO | |
Aug 20, 2026 | TMO | Sell | 2,601 | $628.82 | $1.6M | −2.0% | CEO | |
Aug 20, 2026 | TMO | Sell | 1,250 | $629.85 | $787K | −1.0% | CEO | |
Aug 20, 2026 | TMO | Sell | 560 | $632.94 | $354K | −0.4% | CEO | |
Aug 20, 2026 | TMO | Sell | 1,035 | $630.87 | $653K | −0.8% | CEO | |
Aug 6, 2026 | TMO | Sell | 2,164 | $575.46 | $1.2M | −1.7% | CEO | |
Aug 6, 2026 | TMO | Sell | 119 | $578.93 | $69K | −2.5% | CEO | |
Aug 6, 2026 | TMO | Sell | 127 | $580.01 | $74K | −2.7% | CEO | |
Aug 6, 2026 | TMO | Sell | 361 | $577.57 | $209K | −6.9% | CEO | |
Aug 6, 2026 | TMO | Sell | 1,060 | $575.41 | $610K | −16.3% | CEO | |
Aug 6, 2026 | TMO | Sell | 225 | $576.09 | $130K | −4.1% | CEO | |
Aug 6, 2026 | TMO | Sell | 1,200 | $573.34 | $688K | −13.8% | CEO | |
Aug 6, 2026 | TMO | Sell | 1,617 | $574.40 | $929K | −1.3% | CEO | |
Aug 6, 2026 | TMO | Sell | 240 | $571.00 | $137K | −2.5% | CEO | |
Aug 6, 2026 | TMO | Sell | 660 | $572.33 | $378K | −7.0% | CEO | |
Aug 6, 2026 | TMO | Sell | 451 | $577.43 | $260K | −0.4% | CEO | |
Aug 6, 2026 | TMO | Sell | 2,545 | $573.53 | $1.5M | −1.9% | CEO | |
Aug 6, 2026 | TMO | Sell | 321 | $578.67 | $186K | −0.3% | CEO | |
Aug 6, 2026 | TMO | Sell | 480 | $571.05 | $274K | −0.4% | CEO | |
Aug 6, 2026 | TMO | Sell | 311 | $579.90 | $180K | −0.3% | CEO | |
Aug 6, 2026 | TMO | Sell | 1,631 | $572.43 | $934K | −1.2% | CEO | |
Aug 6, 2026 | TMO | Sell | 1,008 | $574.28 | $579K | −13.4% | CEO | |
Mar 5, 2026 | TMO | Sell | 58 | $507.54 | $29K | −0.0% | CEO | |
Mar 5, 2026 | TMO | Sell | 20 | $503.66 | $10K | −0.0% | CEO | |
Mar 5, 2026 | TMO | Sell | 1,133 | $513.71 | $582K | −0.9% | CEO | |
Mar 5, 2026 | TMO | Sell | 264 | $519.74 | $137K | −0.2% | CEO | |
Mar 5, 2026 | TMO | Sell | 411 | $512.73 | $211K | −0.3% | CEO | |
Mar 5, 2026 | TMO | Sell | 516 | $519.13 | $268K | −0.4% | CEO | |
Mar 5, 2026 | TMO | Sell | 106 | $517.83 | $55K | −0.1% | CEO | |
Mar 5, 2026 | TMO | Sell | 214 | $511.78 | $110K | −0.2% | CEO | |
Mar 5, 2026 | TMO | Sell | 201 | $516.73 | $104K | −0.2% | CEO | |
Mar 5, 2026 | TMO | Sell | 348 | $515.64 | $179K | −0.3% | CEO | |
Mar 5, 2026 | TMO | Sell | 99 | $509.66 | $50K | −0.1% | CEO | |
Mar 5, 2026 | TMO | Sell | 60 | $505.76 | $30K | −0.0% | CEO | |
Mar 5, 2026 | TMO | Sell | 570 | $514.71 | $293K | −0.5% | CEO | |
Mar 4, 2026 | TMO | Sell | 118 | $516.75 | $61K | −0.1% | CEO | |
Mar 4, 2026 | TMO | Sell | 212 | $514.86 | $109K | −0.2% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| TMO | THERMO FISHER SCIENTIFIC INC. | 109 | $55.4M |
Other insiders at THERMO FISHER SCIENTIFIC INC.
4 other tracked filers at TMO.