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TMO · Thermo Fisher Scientific Inc. · Holdings

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$658.02 +6.04 (+0.93%) At close · Oct 9
Market Cap
$243.30B
Shares
369.75M
Volume · Oct 9 1.58M Avg daily vol (3M) 2.08M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 2,645
Total Value: $170,571,305,174
Total Shares: 339,699,132
Showing 1–100 of 2,717 holdings by value · page 1 of 28

Institutional Ownership Trend

28 quarters

Holder Concentration

Across 2,634 13F filers
Top Holder
9.1%
Sep 2023 → Jun 2026 · range 9.1% – 10.0%
of institutional value
Top 5
28.5%
Sep 2023 → Jun 2026 · range 27.7% – 30.4%
of institutional value
Top 10
39.3%
Sep 2023 → Jun 2026 · range 38.1% – 41.7%
of institutional value
HHI
238
Sep 2023 → Jun 2026 · range 232 – 269
Broadly held
Showing 100 of 2,717
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 97745 CUSIP 883556102 13F (30d) 181 filings 156 filers Visit website Investor relations