Antero Midstream Corp (AM) shareholders
AMNYSENatural Gas TransmissionFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 28, 2026Score 7/3011% below fair value
$20.46+0.06 (+0.29%)
Close on Nov 13, 2026Market cap $9.66BP/E 14.4Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
60.4%
285M of 472M shares
Institutional holders
531
66 new, 41 sold out
Net institutional buying
6M
In Q2 2026
Insider trades, 12 months
0 buys · 8 sales
Net sold $5.26M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 38,375,721 | 8.00% | 13G (passive) amendment | Dec 31, 2023 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of AM | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 38,199,783 | 8.09% | $869.05M | +1,082,574 | 0.01% |
| Invesco Ltd. | 20,746,981 | 4.39% | $471.99M | −809,922 | 0.04% |
| Vanguard Portfolio Management LLC | 18,193,196 | 3.85% | $413.90M | −106,777 | 0.02% |
| Vanguard Capital Management LLC | 14,958,776 | 3.17% | $340.31M | +149,517 | 0.01% |
| State Street Corp | 11,558,546 | 2.45% | $262.96M | −34,653 | 0.01% |
| Geode Capital Management, LLC | 10,358,867 | 2.19% | $235.70M | +461,863 | 0.01% |
| Tortoise Capital Advisors, L.L.C. | 10,183,484 | 2.16% | $231.67M | −975,910 | 2.36% |
| Dimensional Fund Advisors LP | 9,010,119 | 1.91% | $204.98M | −6,697 | 0.04% |
| Neuberger Berman Group LLC | 7,434,848 | 1.57% | $169.15M | +162,222 | 0.11% |
| Bank of New York Mellon Corp | 6,917,415 | 1.46% | $157.37M | −2,211,873 | 0.03% |
| Morgan Stanley | 6,702,243 | 1.42% | $152.48M | +446,717 | 0.01% |
| Charles Schwab Investment Management Inc | 3,907,744 | 0.83% | $88.90M | −31,081 | 0.01% |
| Northern Trust Corp | 3,742,333 | 0.79% | $85.14M | +10,765 | 0.01% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 3,680,777 | 0.78% | $83.74M | −221,922 | 0.10% |
| Clearbridge Investments, LLC | 3,679,103 | 0.78% | $83.70M | −63,140 | 0.07% |
| Alliancebernstein L.P. | 3,625,697 | 0.77% | $82.67M | −198,250 | 0.03% |
| Boston Trust Walden Corp | 3,451,218 | 0.73% | $78.52M | +19,667 | 0.60% |
| Norges Bank | 3,413,527 | 0.72% | $77.66M | New | 0.01% |
| Qube Research & Technologies Ltd | 3,189,797 | 0.68% | $72.57M | +564,386 | 0.07% |
| Covalis Capital LLP | 3,031,515 | 0.64% | $68.97M | +2,046,353 | 3.89% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 531 | 285M | 60.4% | 66 / 187 | 179 / 41 | 22M | 16M |
| Q1 2026 | 514 | 280M | 59.2% | 84 / 192 | 156 / 51 | 65M | 26M |
| Q4 2025 | 490 | 278M | 58.9% | 73 / 164 | 173 / 36 | 21M | 12M |
| Q3 2025 | 464 | 271M | 57.3% | 49 / 160 | 171 / 58 | 23M | 28M |
| Q2 2025 | 479 | 276M | 58.5% | 68 / 188 | 144 / 36 | 25M | 21M |
| Q1 2025 | 454 | 272M | 57.5% | 66 / 184 | 126 / 40 | 24M | 25M |
| Q4 2024 | 434 | 273M | 57.8% | 59 / 158 | 139 / 44 | 18M | 13M |
| Q3 2024 | 424 | 268M | 56.8% | 54 / 141 | 150 / 41 | 60M | 17M |
| Q2 2024 | 416 | 265M | 56.0% | 55 / 135 | 151 / 33 | 22M | 31M |
| Q1 2024 | 397 | 275M | 58.1% | 52 / 155 | 118 / 46 | 27M | 18M |
| Q4 2023 | 395 | 266M | 56.3% | 63 / 141 | 118 / 34 | 19M | 13M |
| Q3 2023 | 369 | 260M | 55.0% | 52 / 142 | 104 / 30 | 15M | 13M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
412 funds held AM in Q2 2026, 59% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of AM | Value | % of fund | As of |
|---|---|---|---|---|---|
| Invesco SteelPath MLP Income Fund | 11,907,509 | 2.52% | $249.58M | 5.60% | May 31, 2026 |
| iShares Core S&P Mid-Cap ETF | 11,379,102 | 2.41% | $258.87M | 0.21% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 10,545,776 | 2.23% | $239.92M | 0.01% | Jun 30, 2026 |
| Tortoise Energy Infrastructure Total Return Fund | 8,253,829 | 1.75% | $173.00M | 4.59% | May 31, 2026 |
| Vanguard Small-Cap Index Fund | 7,627,187 | 1.61% | $173.52M | 0.09% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 4,830,276 | 1.02% | $109.89M | 0.16% | Jun 30, 2026 |
| Global X MLP and Energy Infrastructure ETF | 3,931,195 | 0.83% | $82.40M | 2.33% | May 31, 2026 |
| Invesco SteelPath MLP Select 40 Fund | 3,925,769 | 0.83% | $82.28M | 3.53% | May 31, 2026 |
| Vanguard Extended Market Index Fund | 3,808,910 | 0.81% | $86.65M | 0.09% | Jun 30, 2026 |
| U.S. Small Cap Portfolio | 2,072,690 | 0.44% | $45.54M | 0.23% | Jul 31, 2026 |
| iShares S&P Mid-Cap 400 Growth ETF | 1,990,256 | 0.42% | $45.28M | 0.40% | Jun 30, 2026 |
| Center Coast Brookfield Midstream Focus Fund | 1,935,500 | 0.41% | $44.03M | 3.93% | Jun 30, 2026 |
| Vanguard Energy Index Fund | 1,926,600 | 0.41% | $40.38M | 0.34% | May 31, 2026 |
| Invesco S&P MidCap Quality ETF | 1,804,299 | 0.38% | $39.64M | 0.73% | Jul 31, 2026 |
| Westwood Salient Mlp & Energy | 1,754,780 | 0.37% | $38.55M | 2.71% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Michael N. Kennedy | See Remarks, Director | 1,500,594 | 0.32% | May 4, 2026 |
| Yvette K. Schultz | See Remarks, Director | 580,565 | 0.12% | May 4, 2026 |
| Paul M. Rady | See Remarks, Director | 3,074,200 | 0.65% | Apr 16, 2025 |
| Sheri Pearce | See Remarks | 83,900 | 0.02% | Aug 5, 2026 |
| Brendan E. Krueger | See Remarks | 731,498 | 0.15% | Mar 10, 2026 |
| Justin J. Agnew | See Remarks | 224,394 | 0.05% | Mar 10, 2026 |
| Janine J. McArdle | Director | 84,439 | 0.02% | Oct 13, 2026 |
| W. Howard Keenan JR | Director | 159,706 | 0.03% | Oct 13, 2026 |
| Peter A. Dea | Director | 70,823 | 0.01% | Oct 13, 2026 |
| David H. Keyte | Director | 121,311 | 0.03% | Oct 13, 2026 |
| John C. Mollenkopf | Director | 108,581 | 0.02% | Oct 13, 2026 |
| Brooks J. Klimley | Director | 70,219 | 0.01% | Oct 13, 2026 |
| Nancy Chisholm | Director | 36,223 | 0.01% | Oct 13, 2026 |
| Jeffrey S. Munoz | Director | 15,419 | 0.00% | Oct 13, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Nancy Chisholm Director | Oct 10, 2026 | Award | +2,015 | – | – | 36,223 |
| Janine J. McArdle Director | Oct 10, 2026 | Award | +2,015 | – | – | 84,439 |
| Jeffrey S. Munoz Director | Oct 10, 2026 | Award | +2,015 | – | – | 15,419 |
| John C. Mollenkopf Director | Oct 10, 2026 | Award | +2,015 | – | – | 108,581 |
| W. Howard Keenan JR Director | Oct 10, 2026 | Award | +2,015 | – | – | 159,706 |
| Peter A. Dea Director | Oct 10, 2026 | Award | +2,015 | – | – | 70,823 |
| Brooks J. Klimley Director | Oct 10, 2026 | Award | +2,015 | – | – | 70,219 |
| David H. Keyte Director | Oct 10, 2026 | Award | +3,408 | – | – | 121,311 |
| Brooks J. Klimley Director | Aug 6, 2026 | Sale | −5,000 | $21.27 | $106.35K | 68,204 |
| Sheri Pearce See Remarks | Aug 4, 2026 | Sale | −16,000 | $22.01 | $352.16K | 83,900 |
| Peter A. Dea Director | Jul 10, 2026 | Award | +1,907 | – | – | 68,808 |
| Janine J. McArdle Director | Jul 10, 2026 | Award | +1,907 | – | – | 82,424 |
| Jeffrey S. Munoz Director | Jul 10, 2026 | Award | +1,907 | – | – | 13,404 |
| Nancy Chisholm Director | Jul 10, 2026 | Award | +1,907 | – | – | 34,208 |
| Brooks J. Klimley Director | Jul 10, 2026 | Award | +1,907 | – | – | 73,204 |
| John C. Mollenkopf Director | Jul 10, 2026 | Award | +1,907 | – | – | 106,566 |
| David H. Keyte Director | Jul 10, 2026 | Award | +3,225 | – | – | 117,903 |
| W. Howard Keenan JR Director | Jul 10, 2026 | Award | +1,907 | – | – | 157,691 |
| Michael N. Kennedy See Remarks, Director | May 4, 2026 | Sale(10b5-1 plan) | −100,000 | $21.92 | $2.19M | 1,500,594 |
| Yvette K. Schultz See Remarks, Director | May 4, 2026 | Sale | −69,269 | $21.90 | $1.52M | 580,565 |
| Brooks J. Klimley Director | Apr 10, 2026 | Award | +1,617 | – | – | 71,297 |
| Janine J. McArdle Director | Apr 10, 2026 | Award | +1,617 | – | – | 80,517 |
| Nancy Chisholm Director | Apr 10, 2026 | Award | +1,617 | – | – | 32,301 |
| David H. Keyte Director | Apr 10, 2026 | Award | +2,950 | – | – | 114,678 |
| Jeffrey S. Munoz Director | Apr 10, 2026 | Award | +1,617 | – | – | 11,497 |
| Peter A. Dea Director | Apr 10, 2026 | Award | +1,617 | – | – | 66,901 |
| W. Howard Keenan JR Director | Apr 10, 2026 | Award | +1,617 | – | – | 155,784 |
| John C. Mollenkopf Director | Apr 10, 2026 | Award | +1,617 | – | – | 104,659 |
| Brooks J. Klimley Director | Mar 12, 2026 | Sale | −5,000 | $23.16 | $115.80K | 69,680 |
| Sheri Pearce See Remarks | Mar 10, 2026 | Sale | −14,000 | $22.76 | $318.64K | 99,900 |
| Yvette K. Schultz See Remarks, Director | Mar 9, 2026 | Sale | −25,000 | $22.81 | $570.25K | 649,834 |
| Yvette K. Schultz See Remarks, Director | Mar 7, 2026 | Tax withholding | −66,252 | $22.97 | $1.52M | 674,834 |
| Yvette K. Schultz See Remarks, Director | Mar 7, 2026 | Award | +97,953 | – | – | 741,086 |
| Michael N. Kennedy See Remarks, Director | Mar 7, 2026 | Award | +261,210 | – | – | 1,724,120 |
| Michael N. Kennedy See Remarks, Director | Mar 7, 2026 | Gift | −15,000 | – | – | 1,600,594 |
| Michael N. Kennedy See Remarks, Director | Mar 7, 2026 | Tax withholding | −108,526 | $22.97 | $2.49M | 1,615,594 |
| Justin J. Agnew See Remarks | Mar 7, 2026 | Award | +32,651 | – | – | 224,394 |
| Justin J. Agnew See Remarks | Mar 7, 2026 | Tax withholding | −15,499 | $22.97 | $356.01K | 208,895 |
| Sheri Pearce See Remarks | Mar 7, 2026 | Tax withholding | −25,240 | $22.97 | $579.76K | 113,900 |
| Sheri Pearce See Remarks | Mar 7, 2026 | Award | +32,651 | – | – | 139,140 |
| Brendan E. Krueger See Remarks | Mar 7, 2026 | Award | +97,953 | – | – | 731,498 |
| Brendan E. Krueger See Remarks | Mar 7, 2026 | Tax withholding | −56,546 | $22.97 | $1.30M | 674,952 |
| Brendan E. Krueger See Remarks | Feb 24, 2026 | Tax withholding | −43,847 | $22.12 | $969.90K | 633,545 |
| Brendan E. Krueger See Remarks | Feb 24, 2026 | Award | +99,242 | – | – | 677,392 |
| Michael N. Kennedy See Remarks, Director | Feb 24, 2026 | Award | +203,212 | – | – | 1,552,302 |
| Michael N. Kennedy See Remarks, Director | Feb 24, 2026 | Tax withholding | −89,392 | $22.12 | $1.98M | 1,462,910 |
| Yvette K. Schultz See Remarks, Director | Feb 24, 2026 | Tax withholding | −54,785 | $22.12 | $1.21M | 643,133 |
| Yvette K. Schultz See Remarks, Director | Feb 24, 2026 | Award | +124,054 | – | – | 697,918 |
| Nancy Chisholm Director | Jan 10, 2026 | Award | +2,058 | – | – | 30,684 |
| Peter A. Dea Director | Jan 10, 2026 | Award | +2,058 | – | – | 65,284 |
| W. Howard Keenan JR Director | Jan 10, 2026 | Award | +2,058 | – | – | 154,167 |
| Janine J. McArdle Director | Jan 10, 2026 | Award | +2,058 | – | – | 78,900 |
| John C. Mollenkopf Director | Jan 10, 2026 | Award | +2,058 | – | – | 103,042 |
| David H. Keyte Director | Jan 10, 2026 | Award | +3,755 | – | – | 111,728 |
| Brooks J. Klimley Director | Jan 10, 2026 | Award | +2,058 | – | – | 74,680 |
| Jeffrey S. Munoz Director | Jan 10, 2026 | Award | +2,058 | – | – | 9,880 |
| Brooks J. Klimley Director | Dec 16, 2025 | Sale | −5,000 | $17.59 | $87.95K | 72,622 |
| Michael N. Kennedy See Remarks, Director | Dec 12, 2025 | Gift | −15,000 | – | – | 1,349,090 |
| W. Howard Keenan JR Director | Oct 10, 2025 | Award | +1,935 | – | – | 152,109 |
| Nancy Chisholm Director | Oct 10, 2025 | Award | +1,935 | – | – | 28,626 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
3.20%
15M shares short
Days to cover
4.9
At 3M shares a day
Change since last report
+9.4%
From 14M shares
Short volume, 20 days
49.7%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Antero Midstream's stock actually held short. No settlement fails above the SEC's reporting threshold in the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Brooks J. Klimley Director | Aug 6, 2026 | 5,000 | $106.36K | Aug 6, 2026 | Restricted Stock Vesting Under a Registered Plan |
| Michael N. Kennedy Officer, Director | May 4, 2026 | 100,000 | $2.19M | May 4, 2026 | Restricted Stock Units |
| Yvette K. Schultz Officer | May 4, 2026 | 69,269 | $1.52M | May 4, 2026 | RSU Vest |
| Brooks J. Klimley Director | Mar 12, 2026 | 5,000 | $115.80K | Mar 12, 2026 | Restricted stock vesting under a registered plan |
| Yvette K. Schultz Officer | Mar 9, 2026 | 25,000 | $570.17K | Mar 9, 2026 | RSU Vest |
| Brooks J. Klimley Director | Dec 16, 2025 | 5,000 | $87.95K | Dec 16, 2025 | Stock Award |
| Brooks J. Klimley Director | May 28, 2025 | 5,000 | $94.40K | May 28, 2025 | Stock Award |
| Brooks J. Klimley Director | Nov 5, 2024 | 10,000 | $146.55K | Nov 5, 2024 | Shares Purchased through Employee Stock Purchase Plan |
| Michael N. Kennedy Chief Financial Officer | May 5, 2023 | 300,000 | $3.14M | May 5, 2023 | RSU Vesting |
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