Thermo Fisher Scientific ($TMO) Insider Trading & Smart Money Activity
Thermo Fisher Scientific Inc. ($TMO) has 5 insider trades, 3 congress trades, 23 13F position changes and 3 analyst ratings on file. Insiders filed 5 Form 4 transactions in the last 12 months, none of them open-market purchases or sales.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 0
- Net insider $ (12 mo)
- $0
- Congress trades (12 mo)
- 2
- 13F moves on file
- 23
- Analyst ratings on file
- 3
TMO insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 1 / 0 | 0 / 2 |
| Q2 2026 | 0 | 0 | 0 / 0 | 4 / 9 |
| Q3 2026 | 0 | 0 | 0 / 1 | 0 / 0 |
| Q4 2026 | 0 | 0 | 0 / 0 | 2 / 6 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All TMO insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13F | RKL Wealth Management | Reduced | -408 sh | $7.17M | — | ||||||
| 13F | Gemmer Asset Management | New | +391 sh | $263.94K | — | ||||||
| 13F | ASR Vermogensbeheer N.V. | Reduced | -58.99K sh | $23.44M | Read | ||||||
| 13F | Zwj Investment Counsel | Added | +3.34K sh | $64.64M | — | ||||||
| 13F | Ninety One SA (Pty) | Reduced | -3.26K sh | $16.29M | — | ||||||
| 13F | Guyasuta Investment Advisors | Reduced | -2.21K sh | $76.60M | — | ||||||
| 13F | Formuepleje A/S | Reduced | -39.09K sh | $58.07M | Read | ||||||
| 13F | Curated Wealth Partners | Reduced | -367.17K sh | $1.01M | Read | ||||||
| Analyst | TD Cowen | Reiterates to Buy | PT $760 | Read | |||||||
| Analyst | Morgan Stanley | Reiterates to Overweight | PT $730 | Read | |||||||
| Analyst | Barclays | Reiterates to Overweight | PT $750 | +1.7% | — | ||||||
| Congress | Dan Newhouse | Sale | $1,001 - $15,000 | +1.0% | +13.8% | — | |||||
| Insider | Dion Weisler | Buy (Grant or award) | 73 sh | +2.2% | +10.5% | — | |||||
| Insider | Scott Sperling | Buy (Grant or award) | 83 sh | +2.2% | +10.5% | — | |||||
| Insider | Karen Lynch | Buy (Grant or award) | 61 sh | +2.2% | +10.5% | — | |||||
| Insider | Alexandra Keith | Buy (Grant or award) | 61 sh | +2.2% | +10.5% | — | |||||
| Insider | Jennifer Johnson | Buy (Grant or award) | 61 sh | +2.2% | +10.5% | — | |||||
| 13F | Viking Global Investors | Added | +874.84K sh | $792.05M | +2.3% | +8.2% | — | ||||
| 13F | Viking Global Investors | Added | +874.84K sh | $834.95M | +2.3% | +8.2% | — | ||||
| 13F | Select Equity Group, L.P. | Reduced | -15.53K sh | $149.92M | +2.3% | +8.2% | — | ||||
| 13F | Farallon Capital Management | Added | +245.80K sh | $441.24M | +2.3% | +8.2% | — | ||||
| 13F | D1 Capital Partners L.P. | New | +725K sh | $362.91M | +2.3% | +8.2% | Read | ||||
| 13F | Generation Investment Management | Reduced | -337.73K sh | $387.24M | +0.3% | +5.8% | — | ||||
| 13F | Financial Engines Advisors L.L.C. | Reduced | -169 sh | $2.85M | +0.3% | +5.8% | — | ||||
| 13F | Financial Engines Advisors L.L.C. | Reduced | -169 sh | $3M | +0.3% | +5.8% | — | ||||
| 13F | Primecap Management | Reduced | -74.76K sh | $941.39M | -2.3% | +6.5% | — | ||||
| 13F | Primecap Management | Reduced | -74.76K sh | $992.39M | -2.3% | +6.5% | — | ||||
| 13F | Cantillon Capital Management | Reduced | -103.62K sh | $385.28M | -5.5% | -1.0% | — | ||||
| 13F | Ninety One UK | Reduced | -255.20K sh | $302.60M | -0.1% | -4.6% | — | ||||
| 13F | Ninety One UK | Reduced | -255.20K sh | $318.99M | -0.1% | -4.6% | — | ||||
| Congress | Alan Armstrong | Purchase | $1,001 - $15,000 | +3.1% | -1.1% | +42.9% | — | ||||
| 13F | Soroban Capital Partners | Sold out | -83.40K sh | +2.8% | -6.2% | +17.7% | — | ||||
| 13F | Soroban Capital Partners | Sold out | -83.40K sh | +2.8% | -6.2% | +17.7% | — | ||||
| Congress | Michael A. Rulli | Sale | $1,001 - $15,000 | — |
1W / 1M / 6M = how TMO moved from the trade or filing date.
Insider trading in TMO: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Dion Weisler | 1 | — | Jun 27, 2026 | ||
| Scott Sperling | 1 | — | Jun 27, 2026 | ||
| Karen Lynch | 1 | — | Jun 27, 2026 | ||
| Alexandra Keith | 1 | — | Jun 27, 2026 | ||
| Jennifer Johnson | 1 | — | Jun 27, 2026 |
Members of Congress trading TMO
Institutions moving TMO (13F)
Analyst ratings on TMO
Frequently asked questions
What is the latest insider trade in TMO?
Dion Weisler filed a buy (grant or award) of 73 sh on Jun 27, 2026.
Which members of Congress traded TMO?
3 disclosed trades by Dan Newhouse, Alan Armstrong and Michael A. Rulli. The latest was on Jul 10, 2026.
Which institutions changed their TMO positions?
Recent 13F filers moving the stock include Viking Global Investors, Financial Engines Advisors L.L.C., Primecap Management, Ninety One UK and Soroban Capital Partners.
Other diagnostics & research stocks
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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