Comparable stake leader
DIMENSIONAL FUND ADVISORS LP
SEC ownership of ArcelorMittal
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001243429.
Disclosed value leader
DIMENSIONAL FUND ADVISORS LP
Comparable rows
0/50
Latest evidence
31 Mar 2026
- Public ticker
- MT on NYSE, AMSYF, ARCXF on OTC
- Parsed ownership sources
- 13F
- Largest SEC-reported holder
- DIMENSIONAL FUND ADVISORS LP
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001243429
- Issuer location
- Grand Duchy Of Luxembourg, Luxembourg
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ArcelorMittal (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
DIMENSIONAL FUND ADVISORS LP
Disclosed value leader
DIMENSIONAL FUND ADVISORS LP
Comparable rows
0/50
Latest evidence
31 Mar 2026
13F
Highest disclosed value: $168,007,556
50 rows are not safely comparable across share classes.
Showing 1-8 of 50 holder rows.
Quick read
DIMENSIONAL FUND ADVISORS LP has the largest disclosed position value at $168.01M.
0 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens DIMENSIONAL FUND ADVISORS LP's linked filing trail.
Disclosed position value
Top 5
DIMENSIONAL FUND ADVISORS LP
$168.01M
MORGAN STANLEY
$104.35M
FMR LLC
$80.96M
BlackRock, Inc.
$74.31M
Maple Rock Capital Partners Inc.
$73.51M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
class O/S missing
|
$168,007,556
3,232,495 shares
|
— | 31 Mar 2026 |
| MORGAN STANLEY |
13F
Company
|
—
class O/S missing
|
$104,351,138
2,007,524 shares
|
— | 31 Mar 2026 |
| FMR LLC |
13F
Company
|
—
class O/S missing
|
$80,961,931
1,557,559 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
—
class O/S missing
|
$74,308,407
1,429,558 shares
|
— | 31 Mar 2026 |
| Maple Rock Capital Partners Inc. |
13F
Company
|
—
class O/S missing
|
$73,513,495
1,414,265 shares
|
— | 31 Mar 2026 |
| GOLDMAN SACHS GROUP INC |
13F
Company
|
—
class O/S missing
|
$68,765,525
1,322,923 shares
|
— | 31 Mar 2026 |
| Bank of New York Mellon Corp |
13F
Company
|
—
class O/S missing
|
$57,406,769
1,104,401 shares
|
— | 31 Mar 2026 |
| BANK OF MONTREAL /CAN/ |
13F
Company
|
—
class O/S missing
|
$47,793,323
919,456 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 06 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Recent insider transactions for ArcelorMittal
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.