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TMO · Thermo Fisher Scientific Inc.

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$628.74 -0.53 (-0.08%) At close · Aug 24
Market Cap
$232.47B
Shares
369.75M

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.

Holders: 2,611
Total Value: $169,802,232,765
Total Shares: 354,107,449

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 2,611 13F filers · Δ vs Mar 31, 2026
Top Holder
9.1%
Sep 2023 → Jun 2026 · range 9.1% – 10.8%
−0.9 pts
Top 5
28.6%
Sep 2023 → Jun 2026 · range 25.5% – 32.3%
+3.1 pts
Top 10
39.4%
Sep 2023 → Jun 2026 · range 35.9% – 44.3%
+3.5 pts
HHI
239
Sep 2023 → Jun 2026 · range 216 – 301
Broadly held+23

Quarterly Activity

vs Mar 31, 2026
New
233
Increased
921
Decreased
1,132
Sold Out
195
Unchanged
325
Holder count: +38
Institutional value: +14.1%
Shares held: +17.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 2,684
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 97745 CUSIP 883556102 13F (30d) 1901 filings 1826 filers Visit website Investor relations