- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 Feb 2026
- Managers listing it
- 15
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 2 listed it in both
- Shares listed
- 34,080,873
- combined, among listed positions
- Reported value
- $704m
- combined, at the quarter end
Among the 92 comparable managers: 9 buyers (opened or added shares) and 7 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,647,166.
Managers listing AMX in Q4 2025
15 of 15 holders
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 24,465,658 shares now+908,187
- Jane Street Group LLCnew position · 517,699 shares now+517,699
- Marshall Wace LLPnew position · 471,645 shares now+471,645
- Citadel Advisors LLCexisting position · 325,214 shares now+311,811
- Holocene Advisors LPnew position · 205,874 shares now+205,874
Reductions
- Discovery Capital Management LLCexisting position · 4,291,383 shares now-390,100
- Renaissance Technologies LLCexisting position · 1,428,528 shares now-371,700
- Invesco Ltdexisting position · 759,349 shares now-102,828
- Wellington Management Group LLPexisting position · 1,226,544 shares now-51,910
- AQR Capital Management LLCexisting position · 43,253 shares now-1,411
New positions and exits
New (6)
Exited (2)
- Arrowstreet Capital LPwas $2.4m
- Brevan Howard Capital Management LPwas $751k
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 →