ADR: the number of shares per ADR isn’t known yetADR: the number of shares per ADR isn’t known yet, so we show no figure rather than a guess. Shares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily.CIK 1243429The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
—
No open-market trades
Congress trades, 24 mo
3
2 purchases, 1 sale
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
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Latest 10-Q
What changed in ArcelorMittal S.A.'s latest quarterly report, compared with the one before.
We have not read a recent 10-Q for this company yet.
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
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13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
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Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
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Lobbying
What ArcelorMittal S.A. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
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Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
237
101 added · 54 trimmed
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No recent insider purchases or sales for this company.
13F holders
25.53M shares
237 funds report MT. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds own 4.9% of shares (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 37.33M reported shares by 761.13M shares, from the cover page of the company’s filing as of Dec 31, 2025.
320 funds hold the stock.
Q3 2026: 3.4% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q2 20254.1%
Q3 20253.8%
Q4 20253.9%
Q1 20263.8%
Q2 20264.9%
Q3 2026 (so far)3.4%
Q3 2026. 43 new, 101 added to, 54 trimmed, 127 exited since Q2 2026.
Download CSVEvery fund that holds MT, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
3 in 24 mo
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Recent congressional trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
What ArcelorMittal S.A. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report, adjusted for splits
Funds holding the stock by quarter
Q4 2013
1
—
24
$618
Q3 2014
1
0
24
$767
Q4 2014
1
0
24
$618
Q1 2015
1
0
27
$575
Q2 2015
2
+1
55,960
$1.2M
Q3 2015
1
-1
27
$314
Q4 2015
1
0
27
$257
Q1 2016
2
+1
1,063
$14.6K
Q2 2016
2
0
1,063
$14.9K
Q3 2016
3
+1
19,115
$1.4M
Q4 2016
3
0
1,686
$37.3K
Q1 2017
3
0
2,214
$88.1K
Q2 2017
161
+158
33.91M
$770.9M
Q3 2017
161
0
41.84M
$1.1B
Q4 2017
189
+28
49.26M
$1.6B
Q1 2018
194
+5
49.76M
$1.6B
Q2 2018
194
0
34.76M
$1.0B
Q3 2018
189
-5
34.39M
$1.1B
Q4 2018
172
-17
31.26M
$646.4M
Q1 2019
172
0
33.00M
$672.6M
Q2 2019
140
-32
26.76M
$482.2M
Q3 2019
125
-15
26.68M
$379.9M
Q4 2019
142
+17
33.48M
$587.1M
Q1 2020
116
-26
31.65M
$295.2M
Q2 2020
136
+20
52.04M
$564.3M
Q3 2020
138
+2
48.91M
$648.3M
Q4 2020
141
+3
48.38M
$1.1B
Q1 2021
206
+65
56.20M
$1.6B
Q2 2021
220
+14
68.62M
$2.1B
Q3 2021
226
+6
67.92M
$2.0B
Q4 2021
223
-3
52.91M
$1.7B
Q1 2022
214
-9
50.55M
$1.6B
Q2 2022
191
-23
52.51M
$1.2B
Q3 2022
173
-18
50.69M
$1.0B
Q4 2022
177
+4
49.13M
$1.3B
Q1 2023
191
+14
42.81M
$1.3B
Q2 2023
198
+7
36.74M
$1.0B
Q3 2023
184
-14
36.40M
$911.9M
Q4 2023
191
+7
37.47M
$1.1B
Q1 2024
181
-10
38.32M
$1.1B
Q2 2024
185
+4
32.83M
$752.6M
Q3 2024
200
+15
33.50M
$878.7M
Q4 2024
214
+14
36.76M
$850.9M
Q1 2025
218
+4
32.95M
$949.9M
Q2 2025
234
+16
31.29M
$990.8M
Q3 2025
252
+18
28.68M
$1.0B
Q4 2025
287
+35
29.66M
$1.3B
Q1 2026
303
+16
28.79M
$1.5B
Q2 2026
321
+18
37.33M
$2.2B
Q3 2026
237
-84
25.53M
$1.7B
Each point is a quarter-end, from Q4 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (03938L203). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q4 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits (1.31-for-1 on Mar 14, 2016, 1-for-3 on May 22, 2017): reports from before a split are multiplied by its ratio, so every quarter is on the share count of Q3 2026.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.