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Thermo Fisher insider trading
Transactions in TMO stock reported by Thermo Fisher executives, directors and large holders on SEC Form 4 over the last 120 days. Last update 2026-10-14.
$61.6Mopen-market sales (102,901 shares, 5 insiders)
$0open-market purchases (0 shares, 0 insiders)
28Form 4 filings
Insiders
Marc N Casper Chairman & CEO, Director Sold $32.8M Michael D Shafer Executive Vice President Sold $15.3M Lisa P. Britt Sr. VP and Chief HR Officer Sold $10.4M Gianluca Pettiti President & COO Sold $2.8M Joseph R. Holmes VP & Chief Accounting Officer Sold $246K James Meyer Sr. Vice President & CFO 6 other transactions Thomas B Shropshire Jr. SVP and General Counsel 1 other transaction
All transactions
| Date | Insider | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Aug 31, 2026 | Gianluca Pettiti President & COO | Open-market sale 10b5-1 plan | 400 | $614.38 | $246K | Form 4 ↗ |
| Aug 31, 2026 | Gianluca Pettiti President & COO | Option or RSU exercise | 3,733 | $309.63 | — | Form 4 ↗ |
| Aug 31, 2026 | Gianluca Pettiti President & COO | Open-market sale 10b5-1 plan | 3,733 | $614.38 | $2.3M | Form 4 ↗ |
| Aug 28, 2026 | Marc N Casper Chairman & CEO, Director | Shares withheld for tax | 725 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Marc N Casper Chairman & CEO, Director | Shares withheld for tax | 532 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | James Meyer Sr. Vice President & CFO | Shares withheld for tax | 37 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | James Meyer Sr. Vice President & CFO | Shares withheld for tax | 44 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | James Meyer Sr. Vice President & CFO | Shares withheld for tax | 20 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | James Meyer Sr. Vice President & CFO | Shares withheld for tax | 55 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | James Meyer Sr. Vice President & CFO | Shares withheld for tax | 114 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Thomas B Shropshire Jr. SVP and General Counsel | Shares withheld for tax | 49 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Michael D Shafer Executive Vice President | Shares withheld for tax | 162 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Michael D Shafer Executive Vice President | Shares withheld for tax | 211 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Michael D Shafer Executive Vice President | Shares withheld for tax | 190 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Michael D Shafer Executive Vice President | Shares withheld for tax | 227 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Joseph R. Holmes VP & Chief Accounting Officer | Shares withheld for tax | 11 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Joseph R. Holmes VP & Chief Accounting Officer | Shares withheld for tax | 13 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Joseph R. Holmes VP & Chief Accounting Officer | Shares withheld for tax | 11 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Joseph R. Holmes VP & Chief Accounting Officer | Shares withheld for tax | 15 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Gianluca Pettiti President & COO | Shares withheld for tax | 212 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Gianluca Pettiti President & COO | Shares withheld for tax | 304 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Gianluca Pettiti President & COO | Shares withheld for tax | 249 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Gianluca Pettiti President & COO | Shares withheld for tax | 270 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Shares withheld for tax | 87 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Shares withheld for tax | 116 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Shares withheld for tax | 105 | $622.18 | — | Form 4 ↗ |
| Aug 28, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Shares withheld for tax | 85 | $622.18 | — | Form 4 ↗ |
| Aug 24, 2026 | Marc N Casper Chairman & CEO, Director | Option or RSU exercise | 275 | $309.63 | — | Form 4 ↗ |
| Aug 24, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 101 | $625.41 | $63K | Form 4 ↗ |
| Aug 24, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 33 | $626.59 | $21K | Form 4 ↗ |
| Aug 24, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 79 | $628.01 | $50K | Form 4 ↗ |
| Aug 24, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 62 | $628.74 | $39K | Form 4 ↗ |
| Aug 22, 2026 | James Meyer Sr. Vice President & CFO | Shares withheld for tax | 31 | $629.27 | — | Form 4 ↗ |
| Aug 21, 2026 | Marc N Casper Chairman & CEO, Director | Option or RSU exercise | 10,000 | $309.63 | — | Form 4 ↗ |
| Aug 21, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,727 | $625.46 | $1.7M | Form 4 ↗ |
| Aug 21, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 3,014 | $626.51 | $1.9M | Form 4 ↗ |
| Aug 21, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,791 | $627.39 | $1.1M | Form 4 ↗ |
| Aug 21, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,147 | $628.61 | $1.3M | Form 4 ↗ |
| Aug 21, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 321 | $629.10 | $202K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Option or RSU exercise | 10,000 | $309.63 | — | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 909 | $625.45 | $569K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 821 | $626.83 | $515K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,314 | $627.66 | $825K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,601 | $628.82 | $1.6M | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,250 | $629.85 | $787K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,035 | $630.87 | $653K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,430 | $632.01 | $904K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 560 | $632.94 | $354K | Form 4 ↗ |
| Aug 20, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 80 | $633.99 | $51K | Form 4 ↗ |
| Aug 19, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Option or RSU exercise | 11,440 | $418.32 | — | Form 4 ↗ |
| Aug 19, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Open-market sale | 11,440 | $613.12 | $7.0M | Form 4 ↗ |
| Aug 11, 2026 | Michael D Shafer Executive Vice President | Option or RSU exercise | 11,200 | $309.63 | — | Form 4 ↗ |
| Aug 11, 2026 | Michael D Shafer Executive Vice President | Open-market sale 10b5-1 plan | 11,200 | $600.00 | $6.7M | Form 4 ↗ |
| Aug 11, 2026 | Michael D Shafer Executive Vice President | Option or RSU exercise | 14,300 | $418.32 | — | Form 4 ↗ |
| Aug 11, 2026 | Michael D Shafer Executive Vice President | Open-market sale 10b5-1 plan | 14,300 | $600.00 | $8.6M | Form 4 ↗ |
| Aug 7, 2026 | Joseph R. Holmes VP & Chief Accounting Officer | Option or RSU exercise | 420 | $309.63 | — | Form 4 ↗ |
| Aug 7, 2026 | Joseph R. Holmes VP & Chief Accounting Officer | Open-market sale | 420 | $584.81 | $246K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Option or RSU exercise | 275 | $309.63 | — | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 6 | $577.37 | $3K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 4 | $579.26 | $2K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2 | $579.27 | $1K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 4 | $580.71 | $2K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 3 | $580.72 | $2K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 5 | $581.85 | $3K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2 | $581.86 | $1K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 18 | $583.37 | $11K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 63 | $584.40 | $37K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 30 | $585.42 | $18K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 58 | $586.53 | $34K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 12 | $587.64 | $7K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 32 | $589.51 | $19K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 29 | $590.77 | $17K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 7 | $593.32 | $4K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 94 | $577.37 | $54K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 114 | $579.26 | $66K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 113 | $580.71 | $66K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 113 | $581.85 | $66K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 302 | $583.35 | $176K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,035 | $584.41 | $605K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 530 | $585.44 | $310K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 945 | $586.52 | $554K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 228 | $587.64 | $134K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 522 | $589.52 | $308K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 495 | $590.78 | $292K | Form 4 ↗ |
| Aug 7, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 117 | $593.31 | $69K | Form 4 ↗ |
| Aug 6, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Option or RSU exercise | 5,850 | $309.63 | — | Form 4 ↗ |
| Aug 6, 2026 | Lisa P. Britt Sr. VP and Chief HR Officer | Open-market sale | 5,850 | $580.00 | $3.4M | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Option or RSU exercise | 10,000 | $309.63 | — | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 480 | $571.05 | $274K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,631 | $572.43 | $934K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,545 | $573.53 | $1.5M | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,617 | $574.40 | $929K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,164 | $575.46 | $1.2M | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 480 | $576.46 | $277K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 451 | $577.43 | $260K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 321 | $578.67 | $186K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 311 | $579.90 | $180K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 240 | $571.00 | $137K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 660 | $572.33 | $378K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,200 | $573.34 | $688K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,008 | $574.28 | $579K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,060 | $575.41 | $610K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 225 | $576.09 | $130K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 361 | $577.57 | $209K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 119 | $578.93 | $69K | Form 4 ↗ |
| Aug 6, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 127 | $580.01 | $74K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Option or RSU exercise | 10,000 | $309.63 | — | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 157 | $566.25 | $89K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 130 | $567.92 | $74K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 105 | $569.24 | $60K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 53 | $569.76 | $30K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 135 | $571.49 | $77K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 431 | $573.08 | $247K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 1,186 | $574.03 | $681K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,223 | $574.98 | $1.3M | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,930 | $576.05 | $1.7M | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 2,575 | $576.82 | $1.5M | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan | 75 | $577.56 | $43K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 79 | $566.26 | $45K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 66 | $567.94 | $37K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 38 | $569.13 | $22K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 40 | $569.69 | $23K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 68 | $571.50 | $39K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 216 | $573.08 | $124K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 590 | $574.03 | $339K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,113 | $574.98 | $640K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,464 | $576.05 | $843K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 1,289 | $576.83 | $744K | Form 4 ↗ |
| Aug 5, 2026 | Marc N Casper Chairman & CEO, Director | Open-market sale 10b5-1 plan indirect | 37 | $577.56 | $21K | Form 4 ↗ |
| Jul 27, 2026 | Gianluca Pettiti President & COO | Open-market sale 10b5-1 plan | 400 | $565.00 | $226K | Form 4 ↗ |
Source: SEC EDGAR, Thermo Fisher Form 4 filings. Values are shares × reported price for open-market trades. Insider trades are reported facts, not recommendations. Not investment advice. See the tracker for how to read the codes.