Data spanning the past 90 days through February 10, 2026 reveals that Antero Midstream's three principal insider shareholders consist of Director Glen C Jr Warren (6.19Mn shares), Director Paul M Rady (3.07Mn shares), Officer Alvyn A. Schopp (1.95Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Glen C Jr Warren | Nan | 6,191,816 | 19 Apr, 2021 |
| Paul M Rady | Nan | 3,074,200 | 16 Apr, 2025 |
| Alvyn A. Schopp | Nan | 1,947,052 | 22 Jul, 2021 |
| Michael N. Kennedy | Nan | 1,349,090 | 15 Dec, 2025 |
| Brendan E. Krueger | Nan | 578,150 | 16 Apr, 2025 |
| Yvette K Schultz | Nan | 573,864 | 16 Apr, 2025 |
| W Patrick Ash | Nan | 453,656 | 19 Apr, 2022 |
| W Howard Jr Keenan | 154,167 | 12 Jan, 2026 | |
| David H Keyte | 111,728 | 12 Jan, 2026 | |
| Sheri Pearce | Nan | 106,489 | 21 Aug, 2025 |
| John C Mollenkopf | 103,042 | 12 Jan, 2026 | |
| Janine J Mcardle | 78,900 | 12 Jan, 2026 | |
| Brooks J Klimley | 74,680 | 12 Jan, 2026 | |
| Peter A Dea | 65,284 | 12 Jan, 2026 | |
| Rose M Robeson | 61,571 | 12 Apr, 2022 | |
| Nancy Chisholm | 30,684 | 12 Jan, 2026 | |
| Jeffrey S. Munoz | 9,880 | 12 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Jan, 2026 | Peter A Dea | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 65,284 | D | A |
| 10 Jan, 2026 | David H Keyte | Common stock, par value $0.01 per share | A | 3,755 | $0.00 | 111,728 | D | A |
| 10 Jan, 2026 | John C Mollenkopf | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 103,042 | D | A |
| 10 Jan, 2026 | Brooks J Klimley | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 74,680 | D | A |
| 10 Jan, 2026 | Janine J Mcardle | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 78,900 | D | A |
| 10 Jan, 2026 | W Howard Jr Keenan | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 154,167 | D | A |
| 10 Jan, 2026 | Nancy Chisholm | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 30,684 | D | A |
| 10 Jan, 2026 | Jeffrey S. Munoz | Common stock, par value $0.01 per share | A | 2,058 | $0.00 | 9,880 | D | A |
| 16 Dec, 2025 | Brooks J Klimley | Common stock, par value $0.01 per share | D | 5,000 | $17.59 | 72,622 | D | S |
| 12 Dec, 2025 | Michael N. Kennedy | - | - | 1,349,090 | D | |||
| 12 Dec, 2025 | Michael N. Kennedy | Common stock, par value $0.01 per share | D | 15,000 | $0.00 | 1,349,090 | D | G |
| 10 Oct, 2025 | Peter A Dea | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 63,226 | D | A |
| 10 Oct, 2025 | David H Keyte | Common stock, par value $0.01 per share | A | 2,767 | $0.00 | 107,973 | D | A |
| 10 Oct, 2025 | John C Mollenkopf | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 100,984 | D | A |
| 10 Oct, 2025 | Brooks J Klimley | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 77,622 | D | A |
| 10 Oct, 2025 | Janine J Mcardle | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 76,842 | D | A |
| 10 Oct, 2025 | W Howard Jr Keenan | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 152,109 | D | A |
| 10 Oct, 2025 | Nancy Chisholm | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 28,626 | D | A |
| 10 Oct, 2025 | Jeffrey S. Munoz | Common stock, par value $0.01 per share | A | 1,935 | $0.00 | 7,822 | D | A |
| 20 Aug, 2025 | Sheri Pearce | - | - | 106,489 | D |