Investigate / reported ownership
TMO
Thermo Fisher Scientific Inc
13 tracked reported owners · snapshot updated 2026-10-04. Delayed disclosures, not live holdings or an investment recommendation.
Who reports owning TMO?
Select a manager to inspect their portfolio. Reports may cover different quarters; portfolio weights describe disclosed long 13F holdings, not total economic exposure.
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Dodge & Cox Funds | 0.8% | 40q | $1.53B | 3,054,778 |
| 2 | Viking Global Investors | 2.8% | 25q | $971M | 1,937,415 |
| 3 | Joel Greenblatt | 0.2% | 40q | $288M | 574,992 |
| 4 | Lindsell Train | 9.8% | 7q | $258M | 514,512 |
| 5 | First Pacific Advisors | 1.5% | 33q | $124M | 248,244 |
Go beyond ownership.
A reviewed company brief is not available yet. You can inspect reported owners above and their filings below, then save this company for further research.
We have not generated a business case or inferred manager motives from these holdings.
Filing dates and original SEC sources
- Dodge & Cox Funds · 2026Q2 · filed 2026-08-13 ↗
- Viking Global Investors · 2026Q2 · filed 2026-08-14 ↗
- Joel Greenblatt · 2026Q2 · filed 2026-09-02 ↗
- Lindsell Train · 2026Q2 · filed 2026-07-15 ↗
- First Pacific Advisors · 2026Q2 · filed 2026-08-14 ↗
- Harry Burn · 2026Q2 · filed 2026-08-12 ↗
- Wallace Weitz · 2026Q2 · filed 2026-08-12 ↗
- Thomas Gayner · 2026Q2 · filed 2026-07-31 ↗
- David Katz · 2026Q2 · filed 2026-07-15 ↗
- Stanley Druckenmiller · 2026Q2 · filed 2026-08-14 ↗
- Robert Olstein · 2026Q1 · filed 2026-04-21 ↗
- Mairs & Power Funds · 2026Q2 · filed 2026-08-14 ↗
- Hillman Capital Management · 2026Q2 · filed 2026-08-14 ↗
Your research workspace / TMO
Ask better questions. Keep the evidence.
Explore the available sources for THERMO FISHER SCIENTIFIC INC, then keep what deserves another look.
01 Investor activity
Reported evidence
Who reports owning it?
13 tracked reported owners in the snapshot generated 2026-10-04. Reports can cover different quarters. These are delayed disclosures, not live positions, total economic exposure, endorsements or reasons for investing.
02 Business evidence
No reviewed company brief is available. Business results, case and risks have not been established here.
03 Questions to investigate
Open saved takeaways →A material reported change · Q2 2026
Joel Greenblatt reduced reported TMO shares by 33.5%.
Holdings as of Jun 30, 2026 · filed Sep 2, 2026. Position at period end: 0.2% of the reported portfolio. The filing does not reveal the trade date, price, or reason.
Reported position changes
Net disclosed share changes—not individual trades or execution dates. NEW has no prior-position percentage comparison; EXIT weight refers to the previous report.
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Stanley Druckenmiller | NEW | 0.2% | New position | $10M | Aug 14, 2026 |
| William Von Mueffling | EXIT | 2.5% | -100% | $0 | Jul 29, 2026 |
Explore earlier changes and contrasting evidence
Selected historical records. Retrospective outcomes do not establish predictive skill.
Compare the reported increases and reductions →Q2 2026
filed Sep 2, 2026
64d lag
+6.2% vs SPY
21 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 13, 2026
44d lag
+12.0% vs SPY
35 sessions after disclosure
direction supported so far
Q2 2026
filed Aug 12, 2026
43d lag
+10.8% vs SPY
36 sessions after disclosure
direction supported so far
Q2 2026
filed Jul 29, 2026
29d lag
+9.6% vs SPY
46 sessions after disclosure
direction not supported so far
Q2 2026
filed Jul 15, 2026
15d lag
+17.9% vs SPY
56 sessions after disclosure
direction supported so far
Q2 2026
filed Jul 7, 2026
7d lag
+24.9% vs SPY
62 sessions after disclosure
direction not supported so far
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Long US 13F disclosures omit shorts and can be amended. CUSIP 883556102. No current price, valuation or manager motive is inferred.