Antero Midstream
489 hedge funds and large institutions have $4.95B invested in Antero Midstream in 2025 Q4 according to their latest regulatory filings, with 73 funds opening new positions, 165 increasing their positions, 171 reducing their positions, and 37 closing their positions.
199% more call options, than puts
Call options by funds: $60M | Put options by funds: $20.1M
97% more first-time investments, than exits
New positions opened: 73 | Existing positions closed: 37
5% more funds holding
Funds holding: 464 → 489 (+25)
2.16% more ownership
Funds ownership: 56.24% → 58.4% (+2.2%)
4% less repeat investments, than reductions
Existing positions increased: 165 | Existing positions reduced: 171
5% less capital invested
Capital invested by funds: $5.23B → $4.95B (-$283M)
20% less funds holding in top 10
Funds holding in top 10: 5 → 4 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OAG
Orbis Allan Gray
Hamilton,
Bermuda
|
+$25.4M |
| 2 |
Geode Capital Management
Boston,
Massachusetts
|
+$20.9M |
| 3 |
BlackRock
New York
|
+$19.5M |
| 4 |
GAM
Gotham Asset Management
New York
|
+$17.2M |
| 5 |
KACA
Kayne Anderson Capital Advisors
Los Angeles,
California
|
+$16.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
-$20.5M |
| 2 |
AG
Algert Global
San Francisco,
California
|
-$18.5M |
| 3 |
American Century Companies
Kansas City,
Missouri
|
-$14.5M |
| 4 |
NIM
NXG Investment Management
Dallas,
Texas
|
-$10.6M |
| 5 |
REAM
Ripple Effect Asset Management
New York
|
-$9.91M |
AM Hedge Fund Activity: Q4 2025 in Review
489 of the 8,263 institutional investors tracked by Wall St. Rank reported a position in Antero Midstream (AM) for Q4 2025, worth a combined $4.95B — down 5.4% from $5.23B a quarter earlier.
Buyers outnumbered sellers: 73 funds opened new AM positions and 37 closed out — a net gain of 36 holders — while 165 added to existing stakes and 171 trimmed.
The largest buyer was Orbis Allan Gray, opening a new position worth an estimated $25.4M. The largest seller was Vanguard Group, cutting an estimated $20.5M.
- 489 institutional investors held Antero Midstream (AM) as of Q4 2025, up from 464 in Q3 2025.
- Funds reported $4.95B of Antero Midstream stock for Q4 2025, down 5.4% quarter-over-quarter.
- 73 funds opened new Antero Midstream positions in Q4 2025 and 37 closed out, a net change of +36 holders.
- The largest Antero Midstream buyer in Q4 2025 was Orbis Allan Gray, an estimated $25.4M added.
- The largest Antero Midstream seller in Q4 2025 was Vanguard Group, an estimated $20.5M sold.
Based on aggregated 13F filings for Q4 2025.