TMO Ownership
Thermo Fisher Scientific Inc - Institutional & insider holdings
Ownership Breakdown
Institutions
73+
Stock Price
$521.11
Top Institutional Holders
View All Holders →| Holder | Shares | Value | % Owned |
|---|---|---|---|
| Vanguard Group Inc | 33.79M | $17.61B | 894.81% |
| BlackRock Inc | 27.33M | $14.24B | 723.76% |
| State Street Corp | 16.48M | $8.59B | 436.45% |
| Morgan Stanley - Brokerage Accounts | 12.88M | $6.71B | 341.03% |
| JPMorgan Chase & Co | 9.15M | $4.77B | 242.42% |
| Geode Capital Management, LLC | 8.11M | $4.23B | 214.90% |
| NORGES BANK | 5.59M | $2.91B | 147.91% |
| T. Rowe Price Associates, Inc. | 5.56M | $2.90B | 147.21% |
| Franklin Resources Inc | 4.90M | $2.55B | 129.70% |
| Fidelity 500 Index | 4.79M | $2.49B | 126.72% |
| SPDR® S&P 500® ETF | 4.56M | $2.38B | 120.80% |
| iShares Core S&P 500 ETF | 4.54M | $2.37B | 120.30% |
| FMR Inc | 3.99M | $2.08B | 105.69% |
| Northern Trust Corp | 3.61M | $1.88B | 95.50% |
| Royal Bank of Canada | 3.32M | $1.73B | 87.82% |
Recent Insider Trading
View All Insider Trades →↑Recent Buys (5)
Lynch Karen S
Insider
2025-12-31
Keith R. Alexandra
Insider
2025-12-31
SPERLING SCOTT M
Insider
2025-12-31
JOHNSON JENNIFER M
Insider
2025-12-31
WEISLER DION J
Insider
2025-12-31
↓Recent Sells (0)
No recent insider sales
Understanding Stock Ownership
Institutional Ownership
Large investors like hedge funds and mutual funds that manage $100M+ must disclose their holdings quarterly via 13F filings. High institutional ownership often indicates strong fundamentals.
Insider Ownership
Company executives and directors must report their trades via SEC Form 4. Insider buying can signal confidence, while selling may occur for various reasons including diversification.
Why It Matters
Ownership structure reveals who believes in the company. Institutional investors conduct deep research, while insider buying shows internal confidence. Track ownership changes for investment signals.
Data Sources
Institutional data from SEC 13F filings (quarterly), insider trades from Form 4 filings (within 2 business days), and company proxy statements (annual ownership disclosures).
Get Full TMO Analysis
AI insights, financials, valuation, and complete ownership tracking
View Complete AnalysisFrequently Asked Questions
Who owns TMO?
TMO (Thermo Fisher Scientific Inc) is owned by institutional investors (multiple), company insiders (various holdings), and retail investors. The largest institutional holders are disclosed in quarterly SEC 13F filings.
What is TMO institutional ownership?
TMO has significant institutional ownership from hedge funds, mutual funds, and investment firms. Check the holdings table above for detailed data.
What is TMO insider ownership?
Company insiders hold shares of TMO. Insider trading activity is tracked through SEC Form 4 filings.
Are TMO insiders buying or selling?
Recent insider activity shows 5 buy transactions ($0) and 0 sell transactions ($0). Insider buying and selling are balanced.