Who Owns TMO?
Thermo Fisher Scientific, Inc. — institutional ownership across 18 tracked superinvestors.
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18
Institutional Holders
$3.89B
Total Value Held
1000.00T
Total Shares
Thermo Fisher Scientific, Inc. (TMO) is held by 18 tracked superinvestors with a combined position of $3.89B across 1000.00T shares. The largest holder is Dodge & Cox (Dodge & Cox) with $1.53B (0.80% of portfolio).
| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|---|---|---|---|---|---|---|
| 1 | Dodge & Cox | Dodge & Cox | 3054778 | $1.53B | 0.80% | 2026-06-30 |
| 2 | Andreas Halvorsen | Viking Global Investors | 1937415 | $971.3M | 2.77% | 2026-06-30 |
| 3 | Dan Sundheim | D1 Capital Partners | 817123 | $409.7M | 1.18% | 2026-06-30 |
| 4 | William Von Mueffling | Cantillon Capital Management | 769698 | $378.3M | 2.51% | 2026-03-31 |
| 5 | Lindsell Train | Lindsell Train | 514512 | $258.0M | 9.81% | 2026-06-30 |
| 6 | Steven Romick | First Pacific Advisors | 248244 | $124.5M | 1.54% | 2026-06-30 |
| 7 | Harry Burn | Sound Shore Management | 165318 | $82.9M | 2.55% | 2026-06-30 |
| 8 | Wallace Weitz | Weitz Investment Management | 115200 | $57.8M | 4.00% | 2026-06-30 |
| 9 | Tom Gayner | Markel Group | 73100 | $36.6M | 0.28% | 2026-06-30 |
| 10 | David Katz | Matrix Asset Advisors | 27668 | $13.9M | 1.13% | 2026-06-30 |
| 11 | Stanley Druckenmiller | Duquesne Family Office | 19200 | $9.6M | 0.18% | 2026-06-30 |
| 12 | FPA Queens Road | Bragg Financial Advisors | 15397 | $7.7M | 0.21% | 2026-06-30 |
| 13 | Ray Dalio | Bridgewater Associates | 12948 | $6.5M | 0.03% | 2026-06-30 |
| 14 | Robert Olstein | Olstein Capital Management | 6750 | $3.3M | 0.72% | 2026-03-31 |
| 15 | Mairs & Power | Mairs & Power | 1241 | $622K | 0.01% | 2026-06-30 |
| 16 | Hillman Value Fund | Hillman Capital Management | 750 | $376K | 0.27% | 2026-06-30 |
| 17 | Wally Obermeyer | Obermeyer Wealth Partners | 652 | $327K | 0.01% | 2026-06-30 |
| 18 | Dan Sundheim (Mine & Arao) | Mine & Arao Wealth Creation & Management | 414 | $208K | 0.08% | 2026-06-30 |
Ownership history
| Period | Holders | Total Value | Total Shares |
|---|---|---|---|
| 2023-06-30 | 2 | $1.5M | 15.9M |
| 2023-09-30 | 5 | $76.4M | 1000.00T |
| 2023-12-31 | 6 | $94.5M | 1000.00T |
| 2024-03-31 | 10 | $1.34B | 1000.00T |
| 2024-06-30 | 8 | $421.3M | 1000.00T |
| 2024-09-30 | 7 | $372.7M | 1000.00T |
| 2024-12-31 | 13 | $673.8M | 1000.00T |
| 2025-03-31 | 14 | $2.14B | 1000.00T |
| 2025-06-30 | 14 | $1.75B | 1000.00T |
| 2025-09-30 | 15 | $1.11B | 1000.00T |
| 2025-12-31 | 18 | $1.68B | 1000.00T |
| 2026-03-31 | 16 | $2.10B | 1000.00T |