SEC Form 4 reporting owner
Casper Marc N
Casper Marc N has filed 127 Form 4 transactions reported between February 25, 2026 and August 28, 2026, as Chairman & CEO of THERMO FISHER SCIENTIFIC INC..
Name as filed: CASPER MARC N
Roles and reported holdings
Transaction history
All 127 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.
| Date | Company | Type | Shares | Price | Value | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| Aug 28, 2026 | TMOChairman & CEO | Shares withheld for tax or exercise priceCode F · direct | 532 | $622.18 | $331K@ $622.18 | 122,669 | Form 4 |
| Aug 28, 2026 | TMOChairman & CEO | Shares withheld for tax or exercise priceCode F · direct | 725 | $622.18 | $451K@ $622.18 | 123,201 | Form 4 |
| Aug 24, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 62 | $628.74 | $39K@ $628.74 | 123,925 | Form 4 |
| Aug 24, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 79 | $628.01 | $50K@ $628.01 | 123,987 | Form 4 |
| Aug 24, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 33 | $626.59 | $21K@ $626.59 | 124,066 | Form 4 |
| Aug 24, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 101 | $625.41 | $63K@ $625.41 | 124,099 | Form 4 |
| Aug 24, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 275 | $309.63 | $85K@ $309.63 | 124,200 | Form 4 |
| Aug 21, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 321 | $629.10 | $202K@ $629.10 | 123,925 | Form 4 |
| Aug 21, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,147 | $628.61 | $1.3M@ $628.61 | 124,246 | Form 4 |
| Aug 21, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,791 | $627.39 | $1.1M@ $627.39 | 126,393 | Form 4 |
| Aug 21, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 3,014 | $626.51 | $1.9M@ $626.51 | 128,184 | Form 4 |
| Aug 21, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,727 | $625.46 | $1.7M@ $625.46 | 131,198 | Form 4 |
| Aug 21, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 10,000 | $309.63 | $3.1M@ $309.63 | 133,925 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 80 | $633.99 | $51K@ $633.99 | 123,925 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 560 | $632.94 | $354K@ $632.94 | 124,005 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,430 | $632.01 | $904K@ $632.01 | 124,565 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,035 | $630.87 | $653K@ $630.87 | 125,995 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,250 | $629.85 | $787K@ $629.85 | 127,030 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,601 | $628.82 | $1.6M@ $628.82 | 128,280 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,314 | $627.66 | $825K@ $627.66 | 130,881 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 821 | $626.83 | $515K@ $626.83 | 132,195 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 909 | $625.45 | $569K@ $625.45 | 133,016 | Form 4 |
| Aug 20, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 10,000 | $309.63 | $3.1M@ $309.63 | 133,925 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 117 | $593.31 | $69K@ $593.31 | 0 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 495 | $590.78 | $292K@ $590.78 | 117 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 522 | $589.52 | $308K@ $589.52 | 612 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 228 | $587.64 | $134K@ $587.64 | 1,134 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 945 | $586.52 | $554K@ $586.52 | 1,362 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 530 | $585.44 | $310K@ $585.44 | 2,307 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,035 | $584.41 | $605K@ $584.41 | 2,837 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 302 | $583.35 | $176K@ $583.35 | 3,872 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 113 | $580.71 | $66K@ $580.71 | 4,287 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 114 | $579.26 | $66K@ $579.26 | 4,400 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 94 | $577.37 | $54K@ $577.37 | 4,514 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 7 | $593.32 | $4K@ $593.32 | 123,925 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 29 | $590.77 | $17K@ $590.77 | 123,932 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 32 | $589.51 | $19K@ $589.51 | 123,961 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 12 | $587.64 | $7K@ $587.64 | 123,993 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 58 | $586.53 | $34K@ $586.53 | 124,005 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 30 | $585.42 | $18K@ $585.42 | 124,063 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 63 | $584.40 | $37K@ $584.40 | 124,093 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 18 | $583.37 | $11K@ $583.37 | 124,156 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 5 | $581.85 | $3K@ $581.85 | 124,176 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 3 | $580.72 | $2K@ $580.72 | 124,181 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2 | $579.27 | $1K@ $579.27 | 124,188 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 4 | $579.26 | $2K@ $579.26 | 124,190 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 6 | $577.37 | $3K@ $577.37 | 124,194 | Form 4 |
| Aug 7, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 275 | $309.63 | $85K@ $309.63 | 124,200 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 127 | $580.01 | $74K@ $580.01 | 4,608 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 119 | $578.93 | $69K@ $578.93 | 4,735 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 361 | $577.57 | $209K@ $577.57 | 4,854 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 225 | $576.09 | $130K@ $576.09 | 5,215 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,060 | $575.41 | $610K@ $575.41 | 5,440 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,008 | $574.28 | $579K@ $574.28 | 6,500 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,200 | $573.34 | $688K@ $573.34 | 7,508 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 660 | $572.33 | $378K@ $572.33 | 8,708 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 240 | $571.00 | $137K@ $571.00 | 9,368 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 311 | $579.90 | $180K@ $579.90 | 123,925 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 321 | $578.67 | $186K@ $578.67 | 124,236 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 451 | $577.43 | $260K@ $577.43 | 124,557 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,164 | $575.46 | $1.2M@ $575.46 | 125,488 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,617 | $574.40 | $929K@ $574.40 | 127,652 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,545 | $573.53 | $1.5M@ $573.53 | 129,269 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,631 | $572.43 | $934K@ $572.43 | 131,814 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 480 | $571.05 | $274K@ $571.05 | 133,445 | Form 4 |
| Aug 6, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 10,000 | $309.63 | $3.1M@ $309.63 | 133,925 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 37 | $577.56 | $21K@ $577.56 | 9,608 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,289 | $576.83 | $744K@ $576.83 | 9,645 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,464 | $576.05 | $843K@ $576.05 | 10,934 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 1,113 | $574.98 | $640K@ $574.98 | 12,398 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 590 | $574.03 | $339K@ $574.03 | 13,511 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 216 | $573.08 | $124K@ $573.08 | 14,101 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 68 | $571.50 | $39K@ $571.50 | 14,317 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 40 | $569.69 | $23K@ $569.69 | 14,385 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 38 | $569.13 | $22K@ $569.13 | 14,425 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 66 | $567.94 | $37K@ $567.94 | 14,463 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · indirect | 79 | $566.26 | $45K@ $566.26 | 14,529 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 75 | $577.56 | $43K@ $577.56 | 123,925 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,575 | $576.82 | $1.5M@ $576.82 | 124,000 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,930 | $576.05 | $1.7M@ $576.05 | 126,575 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 2,223 | $574.98 | $1.3M@ $574.98 | 129,505 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,186 | $574.03 | $681K@ $574.03 | 131,728 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 431 | $573.08 | $247K@ $573.08 | 132,914 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 135 | $571.49 | $77K@ $571.49 | 133,345 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 53 | $569.76 | $30K@ $569.76 | 133,480 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 105 | $569.24 | $60K@ $569.24 | 133,533 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 130 | $567.92 | $74K@ $567.92 | 133,638 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 157 | $566.25 | $89K@ $566.25 | 133,768 | Form 4 |
| Aug 5, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 10,000 | $309.63 | $3.1M@ $309.63 | 133,925 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 264 | $519.74 | $137K@ $519.74 | 123,925 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 516 | $519.13 | $268K@ $519.13 | 124,189 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 106 | $517.83 | $55K@ $517.83 | 124,705 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 201 | $516.73 | $104K@ $516.73 | 124,811 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 348 | $515.64 | $179K@ $515.64 | 125,012 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 570 | $514.71 | $293K@ $514.71 | 125,360 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,133 | $513.71 | $582K@ $513.71 | 125,930 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 411 | $512.73 | $211K@ $512.73 | 127,063 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 214 | $511.78 | $110K@ $511.78 | 127,474 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 99 | $509.66 | $50K@ $509.66 | 127,688 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 58 | $507.54 | $29K@ $507.54 | 127,787 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 60 | $505.76 | $30K@ $505.76 | 127,845 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 20 | $503.66 | $10K@ $503.66 | 127,905 | Form 4 |
| Mar 5, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 4,000 | $309.63 | $1.2M@ $309.63 | 127,925 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 118 | $516.75 | $61K@ $516.75 | 123,925 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 119 | $515.77 | $61K@ $515.77 | 124,043 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 212 | $514.86 | $109K@ $514.86 | 124,162 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 815 | $513.63 | $419K@ $513.63 | 124,374 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,241 | $512.92 | $637K@ $512.92 | 125,189 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 1,370 | $511.80 | $701K@ $511.80 | 126,430 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 678 | $510.71 | $346K@ $510.71 | 127,800 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 447 | $509.89 | $228K@ $509.89 | 128,478 | Form 4 |
| Mar 4, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 5,000 | $309.63 | $1.5M@ $309.63 | 128,925 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 759 | $508.95 | $386K@ $508.95 | 124,045 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 931 | $507.90 | $473K@ $507.90 | 124,804 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 448 | $506.74 | $227K@ $506.74 | 125,735 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 120 | $502.59 | $60K@ $502.59 | 126,303 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 382 | $500.55 | $191K@ $500.55 | 126,783 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 240 | $499.75 | $120K@ $499.75 | 127,165 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 680 | $498.14 | $339K@ $498.14 | 127,405 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 480 | $496.84 | $238K@ $496.84 | 128,085 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Open-market saleCode S · direct | 360 | $495.29 | $178K@ $495.29 | 128,565 | Form 4 |
| Mar 3, 2026 | TMOChairman & CEO | Option exerciseCode M · direct | 5,000 | $309.63 | $1.5M@ $309.63 | 128,925 | Form 4 |
| Feb 28, 2026 | TMOChairman & CEO | Shares withheld for tax or exercise priceCode F · direct | 1,211 | $521.11 | $631K@ $521.11 | 123,925 | Form 4 |
| Feb 28, 2026 | TMOChairman & CEO | Shares withheld for tax or exercise priceCode F · direct | 3,474 | $521.11 | $1.8M@ $521.11 | 125,137 | Form 4 |
| Feb 25, 2026 | TMOChairman & CEO | Grant or awardCode A · direct | 32,109 | — | — | 32,109 | Form 4 |
| Feb 25, 2026 | TMOChairman & CEO | Grant or awardCode A · direct | 7,333 | — | — | 128,610 | Form 4 |
| Feb 25, 2026 | TMOChairman & CEO | Grant or awardCode A · direct | 7,515 | — | — | 121,277 | Form 4 |
How this page is built
Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.
Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.
This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.