AM · Insider Trading
Antero Midstream Corporation Common Stock
Every open-market purchase and sale reported by AM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-13 | Janine J McArdle | Director | A | +2,015 | — |
| 2026-10-13 | Peter A Dea | Director | A | +2,015 | — |
| 2026-10-13 | W Howard Keenan JR | Director | A | +2,015 | — |
| 2026-10-13 | Nancy Chisholm | Director | A | +2,015 | — |
| 2026-10-13 | David H Keyte | Director | A | +3,408 | — |
| 2026-10-13 | Brooks J Klimley | Director | A | +2,015 | — |
| 2026-10-13 | Jeffrey S. Munoz | Director | A | +2,015 | — |
| 2026-10-13 | John C Mollenkopf | Director | A | +2,015 | — |
| 2026-08-06 | Brooks J Klimley | Director | Sell | −5,000 | −$106.35K |
| 2026-08-06 | Brooks J Klimley | Director | Sell | −5,000 | −$106.35K |
| 2026-08-05 | Sheri Pearce | See Remarks | Sell | −16,000 | −$352.16K |
| 2026-07-14 | Jeffrey S. Munoz | Director | A | +1,907 | — |
| 2026-07-14 | John C Mollenkopf | Director | A | +1,907 | — |
| 2026-07-14 | Janine J McArdle | Director | A | +1,907 | — |
| 2026-07-14 | W Howard Keenan JR | Director | A | +1,907 | — |
| 2026-07-14 | Brooks J Klimley | Director | A | +1,907 | — |
| 2026-07-14 | David H Keyte | Director | A | +3,225 | — |
| 2026-07-14 | Nancy Chisholm | Director | A | +1,907 | — |
| 2026-07-14 | Peter A Dea | Director | A | +1,907 | — |
| 2026-05-04 | Michael N. Kennedy | See Remarks | Sell | −100,000 | −$2.19M |
| 2026-05-04 | Yvette K Schultz | See Remarks | Sell | −69,269 | −$1.52M |
| 2026-04-14 | Brooks J Klimley | Director | A | +1,617 | — |
| 2026-04-14 | John C Mollenkopf | Director | A | +1,617 | — |
| 2026-04-14 | Janine J McArdle | Director | A | +1,617 | — |
| 2026-04-14 | David H Keyte | Director | A | +2,950 | — |
| 2026-04-14 | Jeffrey S. Munoz | Director | A | +1,617 | — |
| 2026-04-14 | Nancy Chisholm | Director | A | +1,617 | — |
| 2026-04-14 | Peter A Dea | Director | A | +1,617 | — |
| 2026-04-14 | W Howard Keenan JR | Director | A | +1,617 | — |
| 2026-03-12 | Brooks J Klimley | Director | Sell | −5,000 | −$115.80K |
| 2026-03-10 | Yvette K Schultz | See Remarks | MIXED | +6,701 | −$2.09M |
| 2026-03-10 | Brendan E. Krueger | See Remarks | MIXED | +41,407 | −$1.30M |
| 2026-03-10 | Michael N. Kennedy | See Remarks | MIXED | +137,684 | −$2.49M |
| 2026-03-10 | Justin J. Agnew | See Remarks | MIXED | +17,152 | −$356.01K |
| 2026-03-10 | Sheri Pearce | See Remarks | MIXED | −6,589 | −$898.40K |
| 2026-02-26 | Michael N. Kennedy | See Remarks | MIXED | +113,820 | −$1.98M |
| 2026-02-26 | Brendan E. Krueger | See Remarks | MIXED | +55,395 | −$969.90K |
| 2026-02-26 | Yvette K Schultz | See Remarks | MIXED | +69,269 | −$1.21M |
| 2026-01-12 | Brooks J Klimley | Director | A | +2,058 | — |
| 2026-01-12 | David H Keyte | Director | A | +3,755 | — |
| 2026-01-12 | Jeffrey S. Munoz | Director | A | +2,058 | — |
| 2026-01-12 | Janine J McArdle | Director | A | +2,058 | — |
| 2026-01-12 | Nancy Chisholm | Director | A | +2,058 | — |
| 2026-01-12 | W Howard Keenan JR | Director | A | +2,058 | — |
| 2026-01-12 | Peter A Dea | Director | A | +2,058 | — |
| 2026-01-12 | John C Mollenkopf | Director | A | +2,058 | — |
| 2025-12-16 | Brooks J Klimley | Director | Sell | −5,000 | −$87.95K |
| 2025-12-15 | Michael N. Kennedy | See Remarks | G | −15,000 | — |
| 2025-10-14 | Brooks J Klimley | Director | A | +1,935 | — |
| 2025-10-14 | David H Keyte | Director | A | +2,767 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Paul M Rady | See Remarks | 4,255,021 | $91.36M |
| Michael N. Kennedy | See Remarks | 1,500,594 | $32.22M |
| Brendan E. Krueger | See Remarks | 731,498 | $15.71M |
| Yvette K Schultz | See Remarks | 580,565 | $12.46M |
| Justin J. Agnew | See Remarks | 224,394 | $4.82M |
| W Howard Keenan JR | Director | 159,706 | $3.43M |
| David H Keyte | Director | 121,311 | $2.60M |
| John C Mollenkopf | Director | 108,581 | $2.33M |
| Janine J McArdle | Director | 84,439 | $1.81M |
| Sheri Pearce | See Remarks | 83,900 | $1.80M |
| Peter A Dea | Director | 70,823 | $1.52M |
| Brooks J Klimley | Director | 70,219 | $1.51M |
| Nancy Chisholm | Director | 36,223 | $777.71K |
| Jeffrey S. Munoz | Director | 15,419 | $331.05K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.