Antero Midstream Corporation (AM) Shareholders & Insider Trades
Antero Midstream shareholders at a glance
The largest holder of Antero Midstream stock is Antero Resources Corporation, with 139.2 million shares (29.32% of the company), worth about $3.12 billion as of September 25, 2026. The 10 largest holders together own 58.5%.
In Q2 2026, 561 institutional holdings reports listed 294.0 million shares worth $6.88 billion, up 5.0% in shares from Q1 2026.
Insiders reported 78 transactions in the last two years: 9 sales worth $5.73 million and 1 purchase. The newest one on file is from May 4, 2026 (Kennedy Michael N, Chief Executive Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 4, 2026.
Antero Midstream Corporation
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest Antero Midstream shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Antero Resources Corporation | 139.2 million | 29.32% | $3.1B |
| BlackRock Advisors LLC | 36.4 million | 7.66% | $815.0M |
| Invesco Advisers, Inc. | 20.7 million | 4.37% | $465.0M |
| Vanguard Portfolio Management LLC | 18.2 million | 3.83% | $408.0M |
| Vanguard Capital Management LLC | 15.0 million | 3.15% | $335.0M |
| State Street Corporation | 11.6 million | 2.44% | $259.0M |
| Geode Capital Management LLC | 10.4 million | 2.18% | $232.0M |
| Tortoise Capital Advisors LLC | 10.2 million | 2.15% | $228.0M |
| DFA Australia Ltd. | 8.7 million | 1.82% | $194.0M |
| LB Hercules Holdings LLC | 7.4 million | 1.57% | $167.0M |
As of September 25, 2026.
Antero Midstream institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 561 | 294.0 million | $6.9B |
| Q1 2026 | 542 | 280.0 million | $6.4B |
| Q4 2025 | 520 | 278.0 million | $5.0B |
| Q3 2025 | 494 | 271.0 million | $5.3B |
| Q2 2025 | 510 | 277.0 million | $5.3B |
| Q1 2025 | 490 | 272.0 million | $4.9B |
| Q4 2024 | 467 | 273.0 million | $4.1B |
| Q3 2024 | 456 | 269.0 million | $4.0B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Antero Midstream insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Kennedy Michael N | May 4, 2026 | Chief Executive Officer | Sale at price 21.92 per share. | $2.2M |
| Schultz Yvette K | May 4, 2026 | General Counsel | Sale at price 21.90 per share. | $1.5M |
| Keyte David H | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Dea Peter A | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Mollenkopf John C | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Chisholm Nancy E. | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Munoz Jeffrey S | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Klimley Brooks J | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Mcardle Janine Marie J | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Keenan W Howard Jr | Apr 10, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Klimley Brooks J | Mar 12, 2026 | Director | Sale at price 23.16 per share. | $115,800 |
| Pearce Sheri | Mar 10, 2026 | Officer | Sale at price 22.76 per share. | $318,640 |
Newest 12 of 78 insider transactions in the last two years.
Questions and answers
Who owns the most Antero Midstream stock?
Antero Resources Corporation, with 29.32% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (7.66%) and Invesco Advisers, Inc. (4.37%).
How many institutions own Antero Midstream stock?
561 institutional holdings reports listed Antero Midstream shares in Q2 2026, 294.0 million shares in all worth $6.88 billion.
Are Antero Midstream insiders buying or selling the stock?
In the last two years insiders reported 9 sales and 1 purchase (78 transactions in all); the newest on file is from May 4, 2026.
