- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 14
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 2 listed it in both
- Shares listed
- 46,737,872
- combined, among listed positions
- Reported value
- $1.2bn
- combined, at the quarter end
Among the 91 comparable managers: 10 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +12,656,999.
Managers listing AMX in Q1 2026
14 of 14 holders
Largest increases and reductions, by shares
Increases
- Capital World Investorsnew position · 13,872,513 shares now+13,872,513
- Fidelity (FMR LLC)existing position · 24,927,030 shares now+461,372
- Discovery Capital Management LLCexisting position · 4,444,183 shares now+152,800
- Susquehanna International Group LLPnew position · 27,804 shares now+27,804
- Wellington Management Group LLPexisting position · 1,249,552 shares now+23,008
Reductions
- Renaissance Technologies LLCexisting position · 1,191,628 shares now-236,900
- Jane Street Group LLCexisting position · 282,716 shares now-234,983
- Invesco Ltdexisting position · 530,209 shares now-229,140
- Millennium Management LLCexisting position · 116,503 shares now-75,716
New positions and exits
New (4)
Exited (5)
- Marshall Wace LLPwas $9.7m
- Citadel Advisors LLCwas $6.7m
- Holocene Advisors LPwas $4.3m
- Schonfeld Strategic Advisors LLCwas $1.5m
- Balyasny Asset Management LLCwas $1.2m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q1 2023 | 2 | $608m | n.a. | n.a. |
| Q2 2023 | 3 | $582m | n.a. | n.a. |
| Q3 2023 | 3 | $544m | n.a. | n.a. |
| Q4 2023 | 5 | $637m | 4 | 1 |
| Q1 2024 | 3 | $596m | 1 | 3 |
| Q2 2024 | 4 | $425m | 2 | 2 |
| Q3 2024 | 3 | $433m | 2 | 0 |
| Q4 2024 | 1 | $24m | 0 | 1 |
| Q1 2025 | 1 | $38m | 1 | 0 |
| Q2 2025 | 2 | $129m | 1 | 1 |
| Q3 2025 | 2 | $136m | 0 | 2 |
| Q4 2025 | 3 | $122m | 9 | 7 |
| Q1 2026 | 4 | $1.1bn | 10 | 9 |
| Q2 2026 | 3 | $1.1bn | 11 | 7 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
AMX and NFLX →AMX and TMUS →AMX and CMCSA →Choose a stock to compare with AMX →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own AMX, latest filings →Back to the 13F Explorer →