Thermo Fisher Scientific Inc. (TMO) shareholders
TMONYSEMeasuring & Controlling Devices, NECFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 26, 2026Last filing: 10-Q on Oct 30, 2026Score 11/3034% above fair value
$700.22+0.78 (+0.11%)
Close on Nov 13, 2026Market cap $259.44BP/E 37.0Yield 0.25%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
90.7%
336M of 371M shares
Institutional holders
2,616
202 new, 147 sold out
Net institutional buying
4M
In Q2 2026
Insider trades, 12 months
0 buys · 138 sales
Net sold $135.04M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 28,329,861 | 7.30% | 13G (passive) amendment | Dec 31, 2023 |
| Vanguard Capital Management | 28,008,822 | 7.53% | 13G (passive) | Mar 31, 2026 |
| Abigail P. Johnson Joint filing with FMR LLC (6.00%) | 22,261,362 | 6.00% | 13G (passive) | Sep 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of TMO | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 30,919,632 | 8.35% | $15.50B | +492,440 | 0.23% |
| Vanguard Capital Management LLC | 24,276,316 | 6.55% | $12.17B | −4,500 | 0.26% |
| State Street Corp | 16,825,879 | 4.54% | $8.44B | +94,211 | 0.25% |
| FMR LLC | 14,084,488 | 3.80% | $7.06B | +3,308,052 | 0.31% |
| Morgan Stanley | 10,763,066 | 2.90% | $5.40B | −100,462 | 0.29% |
| JPMorgan Chase & Co | 8,503,527 | 2.30% | $4.31B | +1,708,045 | 0.24% |
| Geode Capital Management, LLC | 8,382,401 | 2.26% | $4.18B | −25,490 | 0.22% |
| Franklin Resources Inc | 7,271,514 | 1.96% | $3.65B | +458,483 | 0.79% |
| Vanguard Portfolio Management LLC | 6,226,169 | 1.68% | $3.12B | +62,799 | 0.14% |
| Capital World Investors | 6,195,370 | 1.67% | $3.11B | −450,946 | 0.37% |
| Price T Rowe Associates Inc /Md/ | 5,116,336 | 1.38% | $2.57B | −1,199,135 | 0.26% |
| Norges Bank | 5,087,903 | 1.37% | $2.55B | New | 0.25% |
| Capital Research Global Investors | 4,147,545 | 1.12% | $2.08B | −267,076 | 0.29% |
| Bank of New York Mellon Corp | 3,938,410 | 1.06% | $1.97B | +171,796 | 0.32% |
| Bank Of America Corp /De/ | 3,895,265 | 1.05% | $1.95B | −1,638,138 | 0.13% |
| Royal Bank of Canada | 3,430,798 | 0.93% | $1.72B | −483,105 | 0.26% |
| Northern Trust Corp | 3,328,836 | 0.90% | $1.67B | −86,774 | 0.19% |
| Capital International Investors | 3,182,151 | 0.86% | $1.60B | −706,575 | 0.33% |
| Charles Schwab Investment Management Inc | 3,114,527 | 0.84% | $1.56B | +179,685 | 0.21% |
| Dodge & Cox | 3,054,778 | 0.82% | $1.53B | +3,029,037 | 0.80% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 2,616 | 336M | 90.7% | 202 / 925 | 1161 / 147 | 28M | 24M |
| Q1 2026 | 2,606 | 333M | 90.0% | 172 / 977 | 1098 / 232 | 55M | 64M |
| Q4 2025 | 2,703 | 378M | 100.0% | 369 / 940 | 1044 / 121 | 66M | 26M |
| Q3 2025 | 2,515 | 340M | 91.8% | 242 / 984 | 956 / 147 | 37M | 37M |
| Q2 2025 | 2,459 | 340M | 91.7% | 186 / 906 | 1049 / 265 | 35M | 32M |
| Q1 2025 | 2,575 | 339M | 91.4% | 152 / 1041 | 1006 / 160 | 18M | 18M |
| Q4 2024 | 2,622 | 341M | 92.0% | 299 / 888 | 1091 / 201 | 21M | 24M |
| Q3 2024 | 2,575 | 345M | 93.2% | 172 / 1037 | 995 / 116 | 45M | 16M |
| Q2 2024 | 2,548 | 346M | 93.3% | 165 / 1063 | 930 / 117 | 22M | 39M |
| Q1 2024 | 2,532 | 366M | 98.8% | 194 / 1020 | 962 / 122 | 27M | 18M |
| Q4 2023 | 2,492 | 359M | 97.0% | 293 / 885 | 984 / 132 | 38M | 20M |
| Q3 2023 | 2,367 | 342M | 92.4% | 141 / 971 | 888 / 135 | 19M | 20M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
1,131 funds held TMO in Q2 2026, 41% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of TMO | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 11,797,800 | 3.18% | $5.91B | 0.26% | Jun 30, 2026 |
| Vanguard 500 Index Fund | 9,628,713 | 2.60% | $4.83B | 0.29% | Jun 30, 2026 |
| iShares Core S&P 500 ETF | 5,111,755 | 1.38% | $2.56B | 0.29% | Jun 30, 2026 |
| Fidelity 500 Index Fund | 4,807,944 | 1.30% | $2.37B | 0.28% | May 31, 2026 |
| Vanguard Value Index Fund | 3,537,914 | 0.95% | $1.77B | 0.70% | Jun 30, 2026 |
| Fidelity Contrafund | 3,135,953 | 0.85% | $1.57B | 0.87% | Jun 30, 2026 |
| State Street(R) Health Care Select Sector SPDR(R) ETF | 2,625,398 | 0.71% | $1.32B | 3.24% | Jun 30, 2026 |
| Dodge & Cox Stock Fund | 2,061,300 | 0.56% | $1.03B | 0.87% | Jun 30, 2026 |
| Vanguard Institutional Index Fund | 2,017,354 | 0.54% | $1.01B | 0.29% | Jun 30, 2026 |
| Putnam Large Cap Value Fund | 1,725,504 | 0.47% | $990.96M | 1.79% | Jul 31, 2026 |
| Growth Fund of America | 1,656,561 | 0.45% | $815.87M | 0.23% | May 31, 2026 |
| New Perspective Fund | 1,470,002 | 0.40% | $737.00M | 0.43% | Jun 30, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund | 1,386,642 | 0.37% | $682.94M | 0.27% | May 31, 2026 |
| American Funds Fundamental Investors | 1,334,103 | 0.36% | $668.87M | 0.37% | Jun 30, 2026 |
| Investment Co of America | 1,313,214 | 0.35% | $658.39M | 0.36% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Marc N. Casper | Chairman & CEO, Director | 139,501 | 0.04% | Sep 1, 2026 |
| Lisa P. Britt | Sr. VP and Chief HR Officer | 11,560 | 0.00% | Oct 30, 2026 |
| Joseph R. Holmes | VP & Chief Accounting Officer | 2,943 | 0.00% | Sep 1, 2026 |
| Gianluca Pettiti | President & COO | 26,949 | 0.01% | Sep 1, 2026 |
| Michael D. Shafer | Executive Vice President | 20,204 | 0.01% | Sep 1, 2026 |
| Thomas B. Shropshire Jr. | SVP and General Counsel | 6,009 | 0.00% | Sep 1, 2026 |
| James Meyer | Sr. Vice President & CFO | 5,732 | 0.00% | Sep 1, 2026 |
| Michel Lagarde | Executive Vice President | 85,151 | 0.02% | Mar 2, 2026 |
| Stephen Williamson | Retiring Sr. VP and CFO | 45,173 | 0.01% | Mar 2, 2026 |
| Frederick M. Lowery | Executive Vice President | 16,500 | 0.00% | Mar 2, 2026 |
| Michael A. Boxer | SVP and General Counsel | 10,816 | 0.00% | Mar 11, 2025 |
| Scott M. Sperling | Director | 65,989 | 0.02% | Oct 30, 2026 |
| Dion J. Weisler | Director | 5,446 | 0.00% | Sep 29, 2026 |
| Jennifer M. Johnson | Director | 1,403 | 0.00% | Sep 29, 2026 |
| R. Alexandra Keith | Director | 2,602 | 0.00% | Sep 29, 2026 |
| Karen S. Lynch | Director | 1,235 | 0.00% | Sep 29, 2026 |
| Tyler Jacks | Director | 9,462 | 0.00% | May 22, 2026 |
| Ruby R. Chandy | Director | 3,463 | 0.00% | May 22, 2026 |
| C. Martin Harris | Director | 9,532 | 0.00% | May 22, 2026 |
| Nelson Chai | Director | 15,316 | 0.00% | May 22, 2026 |
| Debora L. Spar | Director | 2,610 | 0.00% | May 22, 2026 |
| James C. Mullen | Director | 3,393 | 0.00% | May 22, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Scott M. Sperling Director | Oct 28, 2026 | Gift | −3,490 | – | – | 65,989 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Oct 28, 2026 | Sale | −2,831 | $706.45 | $2.00M | 11,560 |
| Gianluca Pettiti President & COO | Aug 31, 2026 | Option exercise | +3,733 | $309.63 | $1.16M | 26,949 |
| Gianluca Pettiti President & COO | Aug 31, 2026 | Sale(10b5-1 plan) | −400 | $614.38 | $245.75K | 23,216 |
| Gianluca Pettiti President & COO | Aug 31, 2026 | Sale(10b5-1 plan) | −3,733 | $614.38 | $2.29M | 23,216 |
| Marc N. Casper Chairman & CEO, Director | Aug 28, 2026 | Tax withholding | −724.77 | $622.18 | $450.94K | 123,201 |
| Marc N. Casper Chairman & CEO, Director | Aug 28, 2026 | Tax withholding | −531.85 | $622.18 | $330.91K | 122,669 |
| Joseph R. Holmes VP & Chief Accounting Officer | Aug 28, 2026 | Tax withholding | −12.92 | $622.18 | $8.04K | 2,943 |
| Joseph R. Holmes VP & Chief Accounting Officer | Aug 28, 2026 | Tax withholding | −10.57 | $622.18 | $6.58K | 2,956 |
| Joseph R. Holmes VP & Chief Accounting Officer | Aug 28, 2026 | Tax withholding | −11.45 | $622.18 | $7.12K | 2,931 |
| Joseph R. Holmes VP & Chief Accounting Officer | Aug 28, 2026 | Tax withholding | −14.97 | $622.18 | $9.31K | 2,916 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Aug 28, 2026 | Tax withholding | −85.1 | $622.18 | $52.95K | 14,391 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Aug 28, 2026 | Tax withholding | −105.4 | $622.18 | $65.58K | 14,476 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Aug 28, 2026 | Tax withholding | −116.04 | $622.18 | $72.20K | 14,581 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Aug 28, 2026 | Tax withholding | −87.03 | $622.18 | $54.15K | 14,697 |
| Thomas B. Shropshire Jr. SVP and General Counsel | Aug 28, 2026 | Tax withholding | −49.02 | $622.18 | $30.50K | 6,009 |
| Michael D. Shafer Executive Vice President | Aug 28, 2026 | Tax withholding | −227.25 | $622.18 | $141.39K | 20,204 |
| Michael D. Shafer Executive Vice President | Aug 28, 2026 | Tax withholding | −189.53 | $622.18 | $117.92K | 20,431 |
| Michael D. Shafer Executive Vice President | Aug 28, 2026 | Tax withholding | −210.81 | $622.18 | $131.16K | 20,621 |
| Michael D. Shafer Executive Vice President | Aug 28, 2026 | Tax withholding | −162.46 | $622.18 | $101.08K | 20,832 |
| James Meyer Sr. Vice President & CFO | Aug 28, 2026 | Tax withholding | −55.12 | $622.18 | $34.29K | 5,673 |
| James Meyer Sr. Vice President & CFO | Aug 28, 2026 | Tax withholding | −19.82 | $622.18 | $12.33K | 5,729 |
| James Meyer Sr. Vice President & CFO | Aug 28, 2026 | Tax withholding | −44.48 | $622.18 | $27.67K | 5,748 |
| James Meyer Sr. Vice President & CFO | Aug 28, 2026 | Tax withholding | −113.62 | $622.18 | $70.69K | 5,560 |
| James Meyer Sr. Vice President & CFO | Aug 28, 2026 | Tax withholding | −37.23 | $622.18 | $23.16K | 5,793 |
| Gianluca Pettiti President & COO | Aug 28, 2026 | Tax withholding | −269.79 | $622.18 | $167.86K | 23,616 |
| Gianluca Pettiti President & COO | Aug 28, 2026 | Tax withholding | −249 | $622.18 | $154.92K | 23,886 |
| Gianluca Pettiti President & COO | Aug 28, 2026 | Tax withholding | −303.64 | $622.18 | $188.92K | 24,135 |
| Gianluca Pettiti President & COO | Aug 28, 2026 | Tax withholding | −212.26 | $622.18 | $132.06K | 24,439 |
| Marc N. Casper Chairman & CEO, Director | Aug 24, 2026 | Sale(10b5-1 plan) | −101 | $625.41 | $63.17K | 124,099 |
| Marc N. Casper Chairman & CEO, Director | Aug 24, 2026 | Option exercise | +275 | $309.63 | $85.15K | 124,200 |
| Marc N. Casper Chairman & CEO, Director | Aug 24, 2026 | Sale(10b5-1 plan) | −62 | $628.74 | $38.98K | 123,925 |
| Marc N. Casper Chairman & CEO, Director | Aug 24, 2026 | Sale(10b5-1 plan) | −79 | $628.01 | $49.61K | 123,987 |
| Marc N. Casper Chairman & CEO, Director | Aug 24, 2026 | Sale(10b5-1 plan) | −33 | $626.59 | $20.68K | 124,066 |
| James Meyer Sr. Vice President & CFO | Aug 22, 2026 | Tax withholding | −30.95 | $629.27 | $19.48K | 5,830 |
| Marc N. Casper Chairman & CEO, Director | Aug 21, 2026 | Option exercise | +10,000 | $309.63 | $3.10M | 133,925 |
| Marc N. Casper Chairman & CEO, Director | Aug 21, 2026 | Sale(10b5-1 plan) | −2,727 | $625.46 | $1.71M | 131,198 |
| Marc N. Casper Chairman & CEO, Director | Aug 21, 2026 | Sale(10b5-1 plan) | −3,014 | $626.51 | $1.89M | 128,184 |
| Marc N. Casper Chairman & CEO, Director | Aug 21, 2026 | Sale(10b5-1 plan) | −1,791 | $627.39 | $1.12M | 126,393 |
| Marc N. Casper Chairman & CEO, Director | Aug 21, 2026 | Sale(10b5-1 plan) | −2,147 | $628.61 | $1.35M | 124,246 |
| Marc N. Casper Chairman & CEO, Director | Aug 21, 2026 | Sale(10b5-1 plan) | −321 | $629.10 | $201.94K | 123,925 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −560 | $632.94 | $354.45K | 124,005 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −1,430 | $632.01 | $903.77K | 124,565 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −1,035 | $630.87 | $652.95K | 125,995 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −1,250 | $629.85 | $787.31K | 127,030 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −1,314 | $627.66 | $824.75K | 130,881 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −821 | $626.83 | $514.63K | 132,195 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −909 | $625.45 | $568.53K | 133,016 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Option exercise | +10,000 | $309.63 | $3.10M | 133,925 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −80 | $633.99 | $50.72K | 123,925 |
| Marc N. Casper Chairman & CEO, Director | Aug 20, 2026 | Sale(10b5-1 plan) | −2,601 | $628.82 | $1.64M | 128,280 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Aug 19, 2026 | Option exercise | +11,440 | $418.32 | $4.79M | 26,224 |
| Lisa P. Britt Sr. VP and Chief HR Officer | Aug 19, 2026 | Sale | −11,440 | $613.12 | $7.01M | 14,784 |
| Michael D. Shafer Executive Vice President | Aug 11, 2026 | Sale(10b5-1 plan) | −14,300 | $600.00 | $8.58M | 20,994 |
| Michael D. Shafer Executive Vice President | Aug 11, 2026 | Option exercise | +14,300 | $418.32 | $5.98M | 35,294 |
| Michael D. Shafer Executive Vice President | Aug 11, 2026 | Sale(10b5-1 plan) | −11,200 | $600.00 | $6.72M | 20,994 |
| Michael D. Shafer Executive Vice President | Aug 11, 2026 | Option exercise | +11,200 | $309.63 | $3.47M | 32,194 |
| Marc N. Casper Chairman & CEO, Director | Aug 7, 2026 | Sale(10b5-1 plan) | −29 | $590.77 | $17.13K | 123,932 |
| Marc N. Casper Chairman & CEO, Director | Aug 7, 2026 | Sale(10b5-1 plan) | −32 | $589.51 | $18.86K | 123,961 |
| Marc N. Casper Chairman & CEO, Director | Aug 7, 2026 | Sale(10b5-1 plan) | −30 | $585.42 | $17.56K | 124,063 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
1.29%
5M shares short
Days to cover
2.0
At 2M shares a day
Change since last report
-2.1%
From 5M shares
Short volume, 20 days
43.7%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Thermo Fisher Scientific's stock actually held short. Settlement fails (shares not delivered on time) peaked at 2,900 shares on Aug 24, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Lisa P. Britt Officer | Oct 28, 2026 | 2,831 | $2.00M | Oct 28, 2026 | Restricted Stock Vesting |
| Gianluca Pettiti Officer | Aug 31, 2026 | 4,133 | $2.54M | Aug 31, 2026 | Restricted Stock Vesting |
| Marc N. Casper Officer, Director | Aug 24, 2026 | 275 | $172.44K | Aug 24, 2026 | Stock Option Exercise |
| Marc N. Casper Officer, Director | Aug 21, 2026 | 10,000 | $6.27M | Aug 21, 2026 | Stock Option Exercise |
| Marc N. Casper Officer, Director | Aug 20, 2026 | 10,000 | $6.29M | Aug 20, 2026 | Stock Option Exercise |
| Lisa P. Britt Officer | Aug 19, 2026 | 11,440 | $7.01M | Aug 19, 2026 | Stock Option Exercise |
| Michael D. Shafer Officer | Aug 11, 2026 | 25,500 | $15.30M | Aug 11, 2026 | Stock Option Exercise |
| Joseph R. Holmes Officer | Aug 7, 2026 | 420 | $245.62K | Aug 7, 2026 | Stock Option Exercise |
| Marc N. Casper Officer, Director | Aug 7, 2026 | 4,883 | $2.82M | Aug 7, 2026 | Restricted Stock Vesting |
| Lisa P. Britt Officer | Aug 6, 2026 | 5,850 | $3.39M | Aug 6, 2026 | Stock Option Exercise |
| Marc N. Casper Officer, Director | Aug 6, 2026 | 15,000 | $8.65M | Aug 6, 2026 | Stock Option Exercise |
| Marc N. Casper Officer, Director | Aug 5, 2026 | 15,000 | $8.52M | Aug 5, 2026 | Restricted Stock Vesting |
| Gianluca Pettiti Officer | Jul 28, 2026 | 400 | $226.00K | Jul 27, 2026 | Restricted Stock Vesting |
| Gianluca Pettiti Officer | Jul 27, 2026 | 400 | $226.00K | Jul 27, 2026 | Restricted Stock Vesting |
| Michel Lagarde Former Officer | May 29, 2026 | 45,940 | $22.45M | May 29, 2026 | Options Granted - 09/05/2019 |
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