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MT · ArcelorMittal

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$74.59 +2.59 (+3.60%) At close · Aug 19
Market Cap
$55.65B
Shares
754.04M

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: 320
Total Value: $2,381,184,852
Total Shares: 39,542,402

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 320 13F filers · Δ vs Mar 31, 2026
Top Holder
28.8%
Sep 2023 → Jun 2026 · range 7.7% – 28.8%
+18.5 pts
Top 5
50.3%
Sep 2023 → Jun 2026 · range 28.4% – 50.3%
+19.0 pts
Top 10
64.1%
Sep 2023 → Jun 2026 · range 44.7% – 64.1%
+16.5 pts
HHI
1,027
Sep 2023 → Jun 2026 · range 298 – 1,027
Broadly held+696

Quarterly Activity

vs Mar 31, 2026
New
61
Increased
90
Decreased
116
Sold Out
43
Unchanged
53
Holder count: +18
Institutional value: +46.3%
Shares held: +26.3%

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 344
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1243429 CUSIP 03938L203 13F (30d) 302 filings 280 filers Visit website Investor relations