AM
Antero Midstream Corporation · Energy · Oil & Gas Midstream
Momentum inputs (comparable managers):
holder breadth -7.1% ·
share flow +4.8% ·
net new positions -7.7%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 125 | +5 | 199.11M | $4.53B | +8 | −2 |
| Q1 2026 | 122 | +3 | 193.83M | $4.40B | +8 | −6 |
| Q4 2025 | 118 | 0 | 213.76M | $3.80B | +1 | — |
| Q3 2025 | 19 | +1 | 111.14M | $2.16B | +2 | −2 |
| Q2 2025 | 16 | 0 | 105.09M | $1.99B | — | — |
| Q1 2025 | 13 | -1 | 29.43M | $529.69M | +1 | −2 |
| Q4 2024 | 14 | +3 | 28.09M | $423.88M | +3 | — |
| Q3 2024 | 10 | -1 | 15.44M | $232.38M | — | −1 |
| Q2 2024 | 11 | — | 16.07M | $236.92M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 11.62M | +1.1% | $209.23M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 6.22M | +1.9% | $112.04M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 6.22M | +1.9% | $112.04M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Norges Bank ✦ (passive) | 4.20M | +1.2% | $75.57M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Millennium Management ✦ | 3.01M | +35.9% | $54.25M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 6 | Arrowstreet Capital ✦ | 1.49M | -36.0% | $26.85M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 632.08K | +241.6% | $11.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Wellington Management ✦ | 563.04K | +64.8% | $10.13M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Wellington Management ✦ | 563.04K | +64.8% | $10.13M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | Wellington Management ✦ | 563.04K | +64.8% | $10.13M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 523.45K | -17.6% | $9.42M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | D. E. Shaw & Co. ✦ | 417.24K | +86.0% | $7.51M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 417.24K | +86.0% | $7.51M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | Marshall Wace ✦ | 234.13K | New | $4.21M | 0.0% | New | 1 | SEC ↗ |
| 15 | Marshall Wace ✦ | 234.13K | New | $4.21M | 0.0% | New | 1 | SEC ↗ |
| 16 | T. Rowe Price ✦ | 222.69K | +6.2% | $4.01M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | Gotham Asset Management ✦ | 198.21K | +40.6% | $3.57M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 83.75K | +174.9% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 83.75K | +174.9% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 83.75K | +174.9% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 83.75K | +174.9% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 83.75K | +174.9% | $1.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $4.21M | 0.0% |
| Marshall Wace | $4.21M | 0.0% |
Exited
| Bridgewater Associates | $204,002 | was 0.0% |
| Fisher Asset Management | $164,788 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 505 holders, 276.60M shares, $6.16B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.