TMO fund manager activity
Thermo Fisher Scientific Inc · NYSE. Reported by 37 tracked fund managers in their 13F filings, Q2 2013 to Q3 2026.
Q3 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|---|---|---|---|---|
| AKO Capital | Sold out | — | — | 0.00% | Nov 13, 2025 |
| Ron Baron - Baron Capital | Trimmed | 24,712 | $11,985,814 | 0.03% | Nov 14, 2025 |
| William Von Mueffling - Cantillon Capital Management | Trimmed | 866,770 | $420,400,785 | 2.31% | Feb 17, 2026 |
| Arnold Van Den Berg - Century Management | Added | 14,295 | $6,933,361 | 1.74% | Nov 14, 2025 |
| Dodge & Cox Funds | Trimmed | 25,741 | $12,484,900 | 0.01% | Nov 13, 2025 |
| Stanley Druckenmiller - Duquesne Family Office | Sold out | — | — | 0.00% | Nov 14, 2025 |
| First Pacific Advisors | Added | 214,946 | $104,253,109 | 1.46% | Nov 13, 2025 |
| Ken Fisher - Fisher Asset Management | Added | 2,721,101 | $1,319,789,028 | 0.48% | Nov 12, 2025 |
| Jeremy Grantham - GMO | Added | 2,141,863 | $1,038,846,631 | 2.93% | Nov 13, 2025 |
| Joel Greenblatt - Gotham Asset Management | Trimmed | 71,776 | $34,812,796 | 0.15% | Nov 14, 2025 |
| Hillman Capital Management | New | 820 | $397,716 | 0.23% | Nov 14, 2025 |
| Lindsell Train | Trimmed | 817,529 | $396,517,916 | 9.73% | Nov 12, 2025 |
| Mairs & Power Funds | No change | 1,616 | $783,792 | 0.01% | Nov 14, 2025 |
| Thomas Gayner - Markel Group | Added | 55,800 | $27,064,116 | 0.22% | Oct 31, 2025 |
| David Katz - Matrix Asset Advisors | Added | 21,511 | $10,433,096 | 0.97% | Oct 14, 2025 |
| Bill Nygren - Oakmark Funds | New | 541 | $262,396 | 0.00% | Nov 14, 2025 |
| Robert Olstein - Olstein Capital Management | No change | 8,000 | $3,880 | 0.73% | Oct 21, 2025 |
| Polen Capital Management | Trimmed | 114,513 | $55,541,018 | 0.18% | Nov 12, 2025 |
| Wallace Weitz - Weitz Investment Management | No change | 150,450 | $72,971,259 | 3.96% | Nov 10, 2025 |
Q2 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|---|---|---|---|---|
| AKO Capital | Trimmed | 26,427 | $10,715,000 | 0.14% | Aug 13, 2025 |
| Ron Baron - Baron Capital | Trimmed | 30,766 | $12,474,382 | 0.03% | Aug 14, 2025 |
| William Von Mueffling - Cantillon Capital Management | Trimmed | 876,265 | $355,290,407 | 2.05% | Feb 17, 2026 |
| Arnold Van Den Berg - Century Management | Added | 14,210 | $5,761,587 | 1.64% | Aug 14, 2025 |
| Dodge & Cox Funds | Trimmed | 25,941 | $10,518,038 | 0.01% | Aug 13, 2025 |
| Stanley Druckenmiller - Duquesne Family Office | New | 12,200 | $4,947,000 | 0.13% | Aug 15, 2025 |
| First Pacific Advisors | New | 87,370 | $35,425,040 | 0.51% | Aug 1, 2025 |
| Ken Fisher - Fisher Asset Management | Trimmed | 2,689,803 | $1,090,607,885 | 0.43% | Aug 13, 2025 |
| Jeremy Grantham - GMO | Added | 1,851,305 | $750,630,295 | 2.27% | Aug 13, 2025 |
| Joel Greenblatt - Gotham Asset Management | Added | 79,762 | $32,340,301 | 0.19% | Aug 14, 2025 |
| Lindsell Train | Added | 854,612 | $346,510,982 | 8.17% | Aug 8, 2025 |
| Mairs & Power Funds | Added | 1,616 | $655,223 | 0.01% | Aug 14, 2025 |
| Thomas Gayner - Markel Group | Added | 49,550 | $20,090,543 | 0.17% | Aug 1, 2025 |
| David Katz - Matrix Asset Advisors | Added | 21,377 | $8,667,389 | 0.88% | Aug 13, 2025 |
| Robert Olstein - Olstein Capital Management | New | 8,000 | $3,244 | 0.61% | Jul 22, 2025 |
| Polen Capital Management | Trimmed | 2,190,348 | $888,098,672 | 2.73% | Aug 13, 2025 |
| Torray Funds | Sold out | — | — | 0.00% | Aug 5, 2025 |
| Wallace Weitz - Weitz Investment Management | Added | 150,450 | $61,001,457 | 3.28% | Aug 12, 2025 |