América Móvil, S.A.B. de C.V.
América Móvil, S.A.B. de C.V. (AMX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AMX · as of Sep 30, 2025
Ownership Breakdown
297
Institutional Holders
▲ 21 vs Q2
$3.78B
Total Inst. Value
▲ $775.19M vs Q2
3.00B
Shares Outstanding
freeFloat 33.25%
180.05M
13F Shares Held
▲ 12.48M vs Q2
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
AMX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
CAPITAL INTERNATIONAL INVESTORS telephone communications (no radiotelephone) | 56.26M | 1.86% | 1.86% | $1.18T | Nov 13, 2025 | ▼ 992.4K |
FMR LLC telephone communications (no radiotelephone) | 23.56M | 77.75% | 77.75% | $494.71B | Nov 13, 2025 | ▲ 5.46M |
LAZARD ASSET MANAGEMENT LLC telephone communications (no radiotelephone) | 17.70M | 58.43% | 58.43% | $371.77B | Nov 14, 2025 | ▲ 1.43M |
WESTWOOD GLOBAL INVESTMENTS, LLC telephone communications (no radiotelephone) | 13.14M | 43.35% | 43.35% | $275.84B | Dec 18, 2025 | ▼ 393.7K |
DISCOVERY CAPITAL MANAGEMENT, LLC / CT telephone communications (no radiotelephone) | 4.68M | 15.45% | 15.45% | $98.31B | Nov 14, 2025 | ▼ 611.7K |
BOSTON PARTNERS telephone communications (no radiotelephone) | 4.51M | 14.88% | 14.88% | $94.68B | Nov 13, 2025 | ▲ 381.5K |
ROBECO INSTITUTIONAL ASSET MANAGEMENT B.V. telephone communications (no radiotelephone) | 4.32M | 14.27% | 14.27% | $90.78B | Oct 22, 2025 | ▲ 3.38M |
DIMENSIONAL FUND ADVISORS LP telephone communications (no radiotelephone) | 4.14M | 13.68% | 13.68% | $87.02B | Nov 12, 2025 | ▲ 118.7K |
MORGAN STANLEY telephone communications (no radiotelephone) | 3.62M | 11.94% | 11.94% | $75.96B | May 27, 2026 | ▲ 1.26M |
BRANDES INVESTMENT PARTNERS, LP telephone communications (no radiotelephone) | 3.13M | 10.35% | 10.35% | $65.83B | Nov 14, 2025 | ▲ 87.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
29
Increased
+19.19M shares1
New Positions
first time holders18
Decreased
−6.06M shares0
Sold Out
fully exitedNet shares change (top 50)
+13.13M
+19.19M / −6.06M
Net new holders
+12
1 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
AMX insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
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
América Móvil, S.A.B. de C.V. (AMX) is primarily owned by institutional investors, who hold approximately 6.0% of total shares outstanding. Company insiders own approximately 66.75%, while retail and public investors account for the remaining 27.26%.
The largest institutional shareholder of América Móvil, S.A.B. de C.V. is CAPITAL INTERNATIONAL INVESTORS, holding approximately 56.26 million shares — equal to 1.86% of outstanding shares — as of September 30, 2025.
A total of 297 institutional investors currently hold AMX stock, with a combined institutional value of approximately $3.78 billion as of the most recent 13F filing period.
Frequently asked questions
AMX ownershipAmérica Móvil, S.A.B. de C.V. (AMX) is primarily owned by institutional investors, who hold approximately 6.0% of shares. The largest shareholder is CAPITAL INTERNATIONAL INVESTORS with a 1.86% stake. Company insiders hold 66.75%. Data sourced from SEC Form 13F as of September 30, 2025.