AM Insider Trading
Antero Midstream Corporation | Natural Gas Transmission
Comprehensive Trading Performance Summary
The investment history of corporate insiders at Antero Midstream Corporation provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Natural Gas Transmission sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2019-05-24 03:11 | 2019-05-21 | Keenan W Howard JR | Director | SELL | $12.61 | 4,000,000 | $50,440,000 | 5,266,099 | -43.2% |
| 2019-05-24 03:02 | 2019-05-21 | Yorktown VI Associates LLC | Director, 10% owner | SELL | $12.61 | 507,600 | $6,400,836 | 1,463,246 | -25.8% |
| 2019-05-24 03:04 | 2019-05-21 | Yorktown Energy Partners VI LP | Director, 10% owner | SELL | $12.61 | 507,600 | $6,400,836 | 1,463,246 | -25.8% |
| 2019-05-24 03:08 | 2019-05-21 | Yorktown V CO LLC | Director, 10% owner | SELL | $12.61 | 483,200 | $6,093,152 | 1,392,602 | -25.8% |
| 2019-05-24 03:03 | 2019-05-21 | KAGAN PETER | Director | SELL | $12.61 | 15,000,000 | $189,150,000 | 40,109,589 | -27.2% |
| 2019-05-24 03:01 | 2019-05-21 | YORKTOWN ENERGY PARTNERS V LP | Director, 10% owner | SELL | $12.61 | 483,200 | $6,093,152 | 1,392,602 | -25.8% |
| 2019-05-24 03:04 | 2019-05-21 | Warburg Pincus Private Equity X O&G, L.P. | Director, 10% owner | SELL | $12.61 | 15,042,135 | $189,681,322 | 40,109,589 | -27.3% |
| 2019-03-15 04:32 | 2019-03-13 | Kennedy Michael N. | Officer - See Remarks | SELL | $12.45 | 210,000 | $2,614,815 | 584,522 | -26.4% |
| 2017-09-13 23:51 | 2017-09-11 | ANTERO RESOURCES Corp | 10% owner | SELL | $31.11 | 10,000,000 | $311,100,000 | 98,870,335 | -9.2% |
| 2016-11-24 00:52 | 2016-11-21 | Kennedy Michael N. | Officer - CFO & Sr. VP Finance | SELL | $30.35 | 5,609 | $170,256 | 37,478 | -13.0% |
| 2016-06-15 00:13 | 2016-06-13 | Kennedy Michael N. | Officer - See Remarks | SELL | $25.65 | 13,274 | $340,452 | 47,978 | -21.7% |
| 2016-05-09 23:37 | 2016-05-05 | Kennedy Michael N. | Officer - See Remarks | SELL | $25.05 | 2,335 | $58,492 | 61,252 | -3.7% |
| 2016-03-31 23:36 | 2016-03-30 | ANTERO RESOURCES Corp | 10% owner | SELL | $22.25 | 8,000,000 | $178,000,000 | 32,929,378 | -19.5% |
| 2014-11-13 03:25 | 2014-11-10 | Connor Richard W. | Director | BUY | $25.00 | 5,000 | $125,000 | 5,000 | +100.0% |
| 2014-11-13 03:26 | 2014-11-10 | Schopp Alvyn A. | Officer - Chief Admin & Regional VP | BUY | $25.00 | 6,000 | $150,000 | 6,000 | +100.0% |
| 2014-11-13 03:26 | 2014-11-10 | Warren Glen C Jr | Director, Officer - President, CFO & Secretary | BUY | $25.00 | 40,000 | $1,000,000 | 40,000 | +100.0% |
| 2014-11-13 03:26 | 2014-11-10 | Peters David A | Director | BUY | $25.00 | 6,000 | $150,000 | 6,000 | +100.0% |
| 2014-11-13 03:27 | 2014-11-10 | Manning Christopher Reid | Director | BUY | $25.00 | 10,000 | $250,000 | 10,000 | +100.0% |
| 2014-11-13 03:27 | 2014-11-10 | RADY PAUL M | Director, Officer - Chief Executive Officer | BUY | $25.00 | 60,000 | $1,500,000 | 60,000 | +100.0% |
| 2012-07-05 22:36 | 2012-07-02 | WEISS GARY L | 10% owner, Other | SELL | $14.35 | 7,582 | $108,791 | 8,877 | -46.1% |
| 2012-02-03 00:36 | 2012-02-01 | WEISS ERWIN | Officer - Senior Vice President | OPT+S | $14.65 | 10,000 | $146,466 | 57,864 | 0.0% |
| 2012-02-03 00:34 | 2012-02-01 | COWEN SCOTT S | Director | OPT+S | $14.78 | 4,000 | $59,120 | 4,600 | 0.0% |
| 2011-07-14 22:20 | 2011-07-12 | GOULDER MICHAEL | Officer - Senior Vice President | SELL | $23.25 | 9,541 | $221,828 | 47,000 | -16.9% |
| 2011-07-05 23:46 | 2011-07-01 | SMITH STEPHEN JOSEPH | Officer - SVP-Chief Financial Officer | SELL | $24.21 | 7,092 | $171,669 | 34,110 | -17.2% |
| 2011-07-05 23:45 | 2011-07-01 | CIPOLLONE JOSEPH B | Officer - VP & Chief Accounting Officer | OPT+S | $24.01 | 37,608 | $902,893 | 25,892 | 0.0% |
| 2011-05-10 23:51 | 2011-05-06 | McGrath Brian T | Officer - Senior Vice President | OPT+S | $24.00 | 5,930 | $142,320 | 33,900 | 0.0% |
| 2011-05-10 23:53 | 2011-05-06 | Johnston Thomas H | Officer - Senior Vice President | OPT+S | $24.15 | 11,000 | $265,650 | 54,670 | 0.0% |
| 2011-05-05 23:58 | 2011-05-03 | WEISS MORRY | Director, Officer, 10% owner - Chairman | OPT+S | $23.67 | 41,119 | $973,365 | 0 | 0.0% |
| 2011-05-05 23:37 | 2011-05-05 | Beeder John W | Officer - Senior Vice President | OPT+S | $23.95 | 17,500 | $419,125 | 49,750 | 0.0% |
| 2011-05-05 23:45 | 2011-05-04 | McGrath Brian T | Officer - Senior Vice President | OPT+S | $23.99 | 28,015 | $672,097 | 33,900 | 0.0% |
| 2011-05-06 00:00 | 2011-05-03 | WEISS ZEV | Director, Officer, 10% owner - Chief Executive Officer | OPT+S | $23.92 | 33,334 | $797,349 | 0 | 0.0% |
| 2011-05-05 23:55 | 2011-05-04 | WEISS GARY L | 10% owner, Other | SELL | $23.69 | 303 | $7,178 | 17,217 | -1.7% |
| 2011-05-04 23:46 | 2011-05-02 | McGrath Brian T | Officer - Senior Vice President | SELL | $23.61 | 5,998 | $141,613 | 29,800 | -16.8% |
| 2011-05-04 23:47 | 2011-05-02 | WEISS GARY L | 10% owner, Other | OPT+S | $23.89 | 6,751 | $161,289 | 15,900 | 0.0% |
| 2011-01-19 01:10 | 2011-01-14 | THORNTON JERRY SUE | Director | SELL | $22.20 | 8,000 | $177,600 | 0 | -100.0% |
| 2010-05-20 00:09 | 2010-05-18 | Mandelbaum Josef | Officer - CEO-AG Intellectual Properties | OPT+S | $26.10 | 1,400 | $36,540 | 20,800 | 0.0% |
| 2010-05-20 00:14 | 2010-05-17 | McGrath Brian T | Officer - Senior Vice President | OPT+S | $26.00 | 11,000 | $286,000 | 20,800 | 0.0% |
| 2010-05-20 00:08 | 2010-05-17 | KILBANE CATHERINE M | Officer - SVP, Gen. Counsel, Secretary | OPT+S | $26.01 | 28,600 | $743,960 | 20,800 | 0.0% |
| 2010-05-20 00:13 | 2010-05-17 | WEISS GARY L | 10% owner, Other | OPT+S | $26.00 | 14,000 | $364,000 | 10,900 | 0.0% |
| 2010-05-13 23:23 | 2010-05-11 | KILBANE CATHERINE M | Officer - SVP, Gen. Counsel, Secretary | OPT+S | $24.81 | 94,100 | $2,334,358 | 20,800 | 0.0% |
| 2010-05-13 23:25 | 2010-05-12 | SMITH STEPHEN JOSEPH | Officer - SVP-Chief Financial Officer | OPT+S | $25.00 | 11,000 | $275,000 | 21,220 | 0.0% |
| 2010-05-06 23:33 | 2010-05-05 | KILBANE CATHERINE M | Officer - SVP, Gen. Counsel, Secretary | OPT+S | $24.75 | 5,650 | $139,838 | 20,800 | 0.0% |
| 2010-05-06 01:41 | 2010-05-03 | Beeder John W | Officer - Senior Vice President | OPT+S | $24.63 | 87,500 | $2,154,950 | 29,500 | 0.0% |
| 2010-05-06 01:54 | 2010-05-03 | Mandelbaum Josef | Officer - CEO-AG Intellectual Properties | OPT+S | $24.28 | 22,000 | $534,072 | 9,800 | 0.0% |
| 2010-05-06 01:50 | 2010-05-04 | Johnston Thomas H | Officer - Senior Vice President | OPT+S | $24.11 | 11,000 | $265,166 | 30,800 | 0.0% |
| 2010-05-06 02:06 | 2010-05-03 | WEISS GARY L | 10% owner, Other | OPT+S | $24.90 | 3,500 | $87,133 | 10,900 | 0.0% |
| 2010-04-28 00:21 | 2010-04-23 | Mandelbaum Josef | Officer - CEO-AG Intellectual Properties | OPT+S | $24.83 | 48,970 | $1,216,165 | 18,000 | 0.0% |
| 2009-12-29 00:40 | 2009-12-23 | Mandelbaum Josef | Officer - CEO-AG Intellectual Properties | OPT+S | $25.02 | 78,300 | $1,958,980 | 0 | 0.0% |
| 2009-12-29 00:37 | 2009-12-23 | SMITH STEPHEN JOSEPH | Officer - Senior Vice President | OPT+S | $25.05 | 11,000 | $275,550 | 0 | 0.0% |
| 2009-12-23 23:04 | 2009-12-22 | Mandelbaum Josef | Officer - CEO-AG Intellectual Properties | OPT+S | $24.12 | 11,000 | $265,320 | 0 | 0.0% |
How to Interpret $AM Trades
Not every insider transaction in Antero Midstream Corporation is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $AM shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for AM
Insider activity data for Antero Midstream Corporation is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $AM, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.