ArcelorMittal S.A.
ArcelorMittal S.A. (MT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MT · as of Mar 31, 2025
Ownership Breakdown
246
Institutional Holders
▲ 6 vs Q4
$949.49M
Total Inst. Value
▲ $98.59M vs Q4
761.10M
Shares Outstanding
freeFloat 99.98%
32.94M
13F Shares Held
▼ 3.82M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MT largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
DIMENSIONAL FUND ADVISORS LP steel works, blast furnaces & rolling mills (coke ovens) | 3.07M | 40.02% | 40.02% | $88.67B | May 13, 2025 | ▲ 44.4K |
BANK OF NEW YORK MELLON CORP steel works, blast furnaces & rolling mills (coke ovens) | 2.40M | 31.30% | 31.30% | $69.36B | Apr 29, 2025 | ▼ 999.0K |
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. steel works, blast furnaces & rolling mills (coke ovens) | 1.87M | 24.38% | 24.38% | $54.02B | May 12, 2025 | ▲ 337.2K |
MORGAN STANLEY steel works, blast furnaces & rolling mills (coke ovens) | 1.77M | 23.08% | 23.08% | $51.13B | May 15, 2025 | ▲ 55.0K |
GOLDMAN SACHS GROUP INC steel works, blast furnaces & rolling mills (coke ovens) | 1.37M | 17.78% | 17.78% | $39.39B | Jun 27, 2025 | ▼ 11.8K |
BLACKROCK, INC. steel works, blast furnaces & rolling mills (coke ovens) | 1.28M | 16.72% | 16.72% | $37.05B | May 2, 2025 | ▼ 55.6K |
FMR LLC steel works, blast furnaces & rolling mills (coke ovens) | 1.27M | 16.52% | 16.52% | $36.61B | May 12, 2025 | ▼ 122.6K |
VOLORIDGE INVESTMENT MANAGEMENT, LLC steel works, blast furnaces & rolling mills (coke ovens) | 1.26M | 16.45% | 16.45% | $36.45B | May 15, 2025 | ▲ 1.23M |
SIH PARTNERS, LLLP steel works, blast furnaces & rolling mills (coke ovens) | 1.18M | 15.37% | 15.37% | $34.05B | May 15, 2025 | ▲ 558.2K |
OPTIVER HOLDING B.V. steel works, blast furnaces & rolling mills (coke ovens) | 1.11M | 14.40% | 14.40% | $31.89B | May 15, 2025 | ▲ 337.3K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
22
Increased
+5.83M shares5
New Positions
first time holders22
Decreased
−6.59M shares0
Sold Out
fully exitedNet shares change (top 50)
761.8K
+5.83M / −6.59M
Net new holders
+5
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MT insider trading · insider activity
Source: SEC Form 4
Recent Insider Transactions
Showing 10 most recent · Common Stock only
No recent insider transactions reported.
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
ArcelorMittal S.A. (MT) is primarily owned by institutional investors, who hold approximately 4.3% of total shares outstanding. Company insiders own approximately 0.02%, while retail and public investors account for the remaining 95.66%.
The largest institutional shareholder of ArcelorMittal S.A. is DIMENSIONAL FUND ADVISORS LP, holding approximately 3.07 million shares — equal to 40.02% of outstanding shares — as of March 31, 2025.
A total of 246 institutional investors currently hold MT stock, with a combined institutional value of approximately $949,487,747 as of the most recent 13F filing period.
Frequently asked questions
MT ownershipArcelorMittal S.A. (MT) is primarily owned by institutional investors, who hold approximately 4.3% of shares. The largest shareholder is DIMENSIONAL FUND ADVISORS LP with a 40.02% stake. Company insiders hold 0.02%. Data sourced from SEC Form 13F as of March 31, 2025.