6 tracked superinvestors hold Thermo Fisher Scientific Inc (TMO), worth $4.3B combined, led by Will Danoff. Smart money is accumulating TMO as of the latest 13F filings.
Current price
$613.78
+25.8%
1Y
Thermo Fisher Scientific Inc. is a global leader in scientific services, providing a comprehensive range of offerings that include life sciences solutions, advanced analytical instruments, specialized diagnostic products, and an extensive portfolio of laboratory supplies and biopharmaceutical services. The company's reach extends across North America, Europe, Asia-Pacific, and other international…
Market cap
$174.4B
P/E
25.81
Div yield
0.3%
Revenue YoY
3.9%
Analyst target
$613
Snapshot for context. For deep analysis use a stock screener — this page is about who owns it.
Superinvestors holding
6
tracked 13F / N-PORT funds
Combined value
$4.3B
disclosed long exposure
Tier-1 conviction
2
concentrated holders
Net this quarter
+5
5 buying · 0 selling
Smart money is net accumulating TMO: 5 funds added or opened versus 0 trimming. 2 opened a brand-new position.
Thermo Fisher Scientific Inc (TMO) is held by 6 tracked funds worth $4.3B combined, 2 of them concentrated Tier-1 managers whose positions carry real conviction.
The largest position belongs to Will Danoff at 1% of their book — no single tracked manager treats it as an outsized, top-weighted bet.
This quarter 2 funds opened a brand-new position (Team, Stanley Druckenmiller), with 3 adding and 0 trimming — a net accumulation signal.
| Investor | Move | % of their portfolio | Position value |
|---|---|---|---|
| Added | 1% | $1.6B | |
| New buy | 0.9% | $1.0B | |
| Added | 2.8% | $971M | |
| Held | 0.7% | $615M | |
| Added | 1% | $75M | |
| New buy | 0.2% | $10M |
Tier badge = signal quality: 1 concentrated conviction · 2 quant/multi (context) · 3 retail & diversified. Only Tier 1 holdings feed the consensus signal.
4 insiders filed SEC Form 144 for $61M of proposed sales in the last 90 days. A 144 is filed before the trade — see who else is selling.
| Insider | Role | Shares | Value | Filed |
|---|---|---|---|---|
| Pettiti Gianluca | Officer | 4,133 | $3M | 2026-08-31 |
| Casper Marc N | Officer & Director | 10,000 | $6M | 2026-08-21 |
| Casper Marc N | Officer & Director | 10,000 | $6M | 2026-08-20 |
| Britt Lisa P. | Officer | 11,440 | $7M | 2026-08-19 |
| Shafer Michael D | Officer | 25,500 | $15M | 2026-08-11 |
| Casper Marc N | Officer & Director | 4,883 | $3M | 2026-08-07 |
| Casper Marc N | Officer & Director | 15,000 | $9M | 2026-08-06 |
| Britt Lisa P. | Officer | 5,850 | $3M | 2026-08-06 |
Which superinvestors own TMO?
6 tracked funds hold Thermo Fisher Scientific Inc (TMO), the largest being Will Danoff (Fidelity Contrafund) at 1% of its 13F portfolio. 2 of them are concentrated Tier-1 conviction managers.
Is smart money buying or selling TMO?
In the most recent 13F quarter, 5 tracked funds added or opened TMO and 0 trimmed it, including 2 brand-new positions.
How much TMO do tracked funds hold?
Combined disclosed long exposure to TMO across tracked superinvestors is $4.3B as of the Jun 2026 filings.
One email when a tracked manager opens, adds to or files to sell a position — from Form 4, 13D and Form 144, not the 45-day-old 13F.
Holdings aggregated from the latest SEC 13F & N-PORT filings via FMP · Jun 2026 quarter. Long equity positions only, reported with up to a 45-day delay — for activity between filings see real-time moves. Not financial advice.