Which funds own AMTM
Amentum Holdings Inc in the Q2 2026 filings. At least 3 of the 91 current managers on file reported a position, worth $60m between them. It is among the largest positions of fewer than a fifth of the current managers on file. Buying and selling roughly cancelled this quarter, which is what a name looks like when the argument is still live.
- Managers holding
- 3
- at least, of 91 current
- Combined value
- $60m
- as reported
- Opened
- 0
- new this quarter
- Added to
- 1
- already held
- Trimmed or sold out
- 3
- 1 sold out entirely
Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.
Managers reporting a position
Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.
| Manager | Value | Weight | Shares | Change on the quarter | Action |
|---|---|---|---|---|---|
| Verition Fund Management LLC Multi-strategy · $19.7bn book | $42m | 0.2% | 2,019,334 | +$7.9m+721,388 | Added |
| Ruane Cunniff & Goldfarb LP Value · $6.4bn book | $11m | 0.2% | 537,213 | -$31m-1,085,769 | Trimmed |
| Moore Capital Management LP Macro · $6.7bn book | $7.5m | 0.1% | 365,096 | -$15m-508,514 | Trimmed |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Maverick Capital Ltd · Long/short equity$1.2m held before
Ownership through time
At least 8 of the 95 managers whose filings are on file listed AMTM in Q2 2026, against 2 in Q3 2024. 2 managers fewer than in Q1 2026: 1 listed it again; 1 sold out, by its own filing; 2 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, or a filing not yet made.
Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.
- Q3 2024: 2
- Q4 2024: 5
- Q1 2025: 8
- Q2 2025: 8
- Q3 2025: 9
- Q4 2025: 9
- Q1 2026: 10
- Q2 2026: 8
- Q3 2024: $82m
- Q4 2024: $366m
- Q1 2025: $479m
- Q2 2025: $752m
- Q3 2025: $738m
- Q4 2025: $787m
- Q1 2026: $713m
- Q2 2026: $585m
Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.
Started in Q2 2026
No manager on file started a position.
Largest increases, by shares
- Invesco Ltd21,473,778 to 24,954,251 shares+$72m
- Verition Fund Management LLC1,297,946 to 2,019,334 shares+$15m
- Soros Fund Management LLC107,606 to 118,276 shares+$221k
- Winton Group Ltd55,500 to 58,393 shares+$60k
- GAMCO Investors Inc95,331 to 97,120 shares+$37k
Largest decreases, by shares
- Ruane Cunniff & Goldfarb LP1,622,982 to 537,213 shares-$22m
- Moore Capital Management LP873,610 to 365,096 shares-$11m
Left it
- Maverick Capital Ltdwas $1.2m
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Invesco Ltd | Q4 2024 | $633m | $516m | |
| Verition Fund Management LLC | Q3 2025 | $42m | $42m | |
| Ruane Cunniff & Goldfarb LP | Q3 2024 | $82m | $11m | |
| Moore Capital Management LP | Q4 2024 | $23m | $7.5m | |
| Brevan Howard Capital Management LP | Q2 2026 | $3.5m | $3.5m | |
| Soros Fund Management LLC | Q3 2024 | $3.2m | $2.4m | |
| GAMCO Investors Inc | Q2 2025 | $2.7m | $2.0m | |
| Winton Group Ltd | Q4 2024 | $2.9m | $1.2m | |
| Millennium Management LLC | Q2 2025 | $110m | last listed Q2 2025 | |
| Discovery Capital Management LLC | Q4 2024 | $54m | last listed Q3 2025 | |
| Freestone Grove Partners LP | Q1 2025 | $49m | last listed Q3 2025 | |
| Point72 Asset Management LP | Q3 2025 | $43m | last listed Q1 2026 | |
| ExodusPoint Capital Management LP | Q4 2025 | $34m | last listed Q4 2025 | |
| Balyasny Asset Management LLC | Q1 2025 | $34m | last listed Q1 2025 | |
| Davidson Kempner Capital Management LP | Q1 2025 | $8.2m | last listed Q1 2025 | |
| Holocene Advisors LP | Q4 2025 | $3.2m | last listed Q1 2026 | |
| Maverick Capital Ltd | Q1 2026 | $1.2m | last listed Q1 2026 |
What AMTM is worth
Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.
Build the comp set around AMTM →How much of the picture this is
A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.
What to do with a name the funds are buying
Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.
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The holdings, every quarter, and the week between
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