- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 12 Aug 2025
- latest of these filings; the earliest 12 May 2025
- Managers listing it
- 8
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 5 listed it in both
- Shares listed
- 26,325,745
- combined, among listed positions
- Reported value
- $479m
- combined, at the quarter end
Among the 95 comparable managers: 6 buyers (opened or added shares) and 2 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +8,910,974.
Managers listing AMTM in Q1 2025
8 of 8 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Invesco Ltd | 17,191,110 | $313m | 0.06% | Added | +3,334,871 | 12 May 2025 (the filing on sec.gov) |
| Discovery Capital Management LLC | 2,630,930 | $48m | 5.73% | Added | +2,165,630 | 15 May 2025 (the filing on sec.gov) |
| Ruane Cunniff & Goldfarb LP | 2,393,039 | $44m | 0.79% | Trimmed | -43,255 | 15 May 2025 (the filing on sec.gov) |
| Balyasny Asset Management LLC | 1,880,887 | $34m | 0.06% | New | new | 15 May 2025 (the filing on sec.gov) |
| Freestone Grove Partners LP | 1,164,835 | $21m | 0.22% | New | new | 15 May 2025 (the filing on sec.gov) |
| Moore Capital Management LP | 498,264 | $9.1m | 0.19% | Trimmed | -93,926 | 12 Aug 2025 (the filing on sec.gov) |
| Davidson Kempner Capital Management LP | 450,000 | $8.2m | 0.11% | New | new | 15 May 2025 (the filing on sec.gov) |
| Winton Group Ltd | 116,680 | $2.1m | 0.13% | Added | +51,932 | 15 May 2025 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Invesco Ltdexisting position · 17,191,110 shares now+3,334,871
- Discovery Capital Management LLCexisting position · 2,630,930 shares now+2,165,630
- Balyasny Asset Management LLCnew position · 1,880,887 shares now+1,880,887
- Freestone Grove Partners LPnew position · 1,164,835 shares now+1,164,835
- Davidson Kempner Capital Management LPnew position · 450,000 shares now+450,000
Reductions
- Moore Capital Management LPexisting position · 498,264 shares now-93,926
- Ruane Cunniff & Goldfarb LPexisting position · 2,393,039 shares now-43,255
New positions and exits
New (3)
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2024 | 2 | $82m | 2 | 0 |
| Q4 2024 | 5 | $366m | 4 | 2 |
| Q1 2025 | 8 | $479m | 6 | 2 |
| Q2 2025 | 8 | $752m | 6 | 3 |
| Q3 2025 | 9 | $738m | 3 | 5 |
| Q4 2025 | 9 | $787m | 15 | 16 |
| Q1 2026 | 10 | $713m | 17 | 12 |
| Q2 2026 | 8 | $585m | 20 | 7 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
AMTM and V →AMTM and MA →AMTM and MCO →Choose a stock to compare with AMTM →
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 AMTM, latest filings →Back to the 13F Explorer →