AM Antero Midstream Corporation
Antero Midstream Corporation (AM) Institutional Ownership
What the institutions did with AM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 38.2M | 13.4% |
| Invesco Ltd. | 20.7M | 7.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 18.2M | 6.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 15.0M | 5.2% |
| STATE STREET CORP | 11.6M | 4.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 10.4M | 3.6% |
| TORTOISE CAPITAL ADVISORS, L.L.C. | 10.2M | 3.6% |
| DIMENSIONAL FUND ADVISORS LP | 9.0M | 3.2% |
| NEUBERGER BERMAN GROUP LLC | 7.4M | 2.6% |
| Bank of New York Mellon Corp | 6.9M | 2.4% |
| MORGAN STANLEY | 6.7M | 2.3% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.9M | 1.4% |
| NORTHERN TRUST CORP | 3.7M | 1.3% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 3.7M | 1.3% |
| Clearbridge Investments, LLC | 3.7M | 1.3% |
| ALLIANCEBERNSTEIN L.P. | 3.6M | 1.3% |
| Boston Trust Walden Corp | 3.5M | 1.2% |
| NORGES BANK | 3.4M | 1.2% |
| Qube Research & Technologies Ltd | 3.2M | 1.1% |
| Covalis Capital LLP | 3.0M | 1.1% |
| BNP PARIBAS FINANCIAL MARKETS | 2.9M | 1.0% |
| Gotham Asset Management, LLC | 2.6M | 0.9% |
| Clark Capital Management Group, Inc. | 2.6M | 0.9% |
| Blackstone Inc. | 2.6M | 0.9% |
| WESTWOOD HOLDINGS GROUP INC | 2.6M | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Bank of New York Mellon Corp | Reduced | 9.1M | 6.9M | -2.2M |
| PRUDENTIAL FINANCIAL INC | Reduced | 2.6M | 401.0K | -2.2M |
| KAYNE ANDERSON CAPITAL ADVISORS LP | Reduced | 4.2M | 2.2M | -2.1M |
| Covalis Capital LLP | Increased | 985.2K | 3.0M | +2.0M |
| BlackRock, Inc. | Increased | 37.1M | 38.2M | +1.1M |
| TORTOISE CAPITAL ADVISORS, L.L.C. | Reduced | 11.2M | 10.2M | -975.9K |
| GOLDMAN SACHS GROUP INC | Increased | 1.6M | 2.4M | +823.9K |
| Invesco Ltd. | Reduced | 21.6M | 20.7M | -809.9K |
| FIRST TRUST ADVISORS LP | Increased | 1.0M | 1.8M | +792.5K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 1.3M | 2.0M | +767.0K |
| UBS Group AG | Increased | 1.4M | 2.1M | +731.0K |
| Fiera Capital Corp | Reduced | 1.6M | 894.0K | -680.1K |
| HITE Hedge Asset Management LLC | Reduced | 765.0K | 90.3K | -674.7K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | 1.3M | 728.8K | -621.1K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 2.3M | 2.9M | +602.5K |
| Qube Research & Technologies Ltd | Increased | 2.6M | 3.2M | +564.4K |
| Gotham Asset Management, LLC | Increased | 2.2M | 2.6M | +477.5K |
| SIR Capital Management, L.P. | New | 0 | 467.6K | +467.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 9.9M | 10.4M | +461.9K |
| Edgestream Partners, L.P. | Increased | 207.0K | 660.4K | +453.4K |
| MORGAN STANLEY | Increased | 6.3M | 6.7M | +446.7K |
| Walleye Capital LLC | Increased | 13.9K | 459.6K | +445.7K |
| Grey Fox Wealth Advisors, LLC | Increased | 23.0K | 457.8K | +434.8K |
| Artisan Partners Limited Partnership | New | 0 | 395.0K | +395.0K |
| CAXTON ASSOCIATES LLP | New | 0 | 395.0K | +395.0K |
| Amundi | Increased | 550.3K | 940.2K | +389.9K |
| NEOS Investment Management LLC | Increased | 788.8K | 1.1M | +295.7K |
| BANK OF AMERICA CORP /DE/ | Reduced | 1.2M | 927.0K | -280.8K |
| Pacer Advisors, Inc. | Reduced | 1.5M | 1.3M | -272.6K |
| FMR LLC | Increased | 1.6M | 1.9M | +262.6K |
| ALGERT GLOBAL LLC | Sold Out | 249.3K | 0 | -249.3K |
| FRANKLIN RESOURCES INC | Reduced | 1.4M | 1.2M | -249.1K |
| WESTWOOD HOLDINGS GROUP INC | Increased | 2.3M | 2.6M | +245.8K |
| Treasurer of the State of North Carolina | Increased | 143.2K | 377.9K | +234.7K |
| Aventail Capital Group, LP | New | 0 | 232.5K | +232.5K |
| Susquehanna Portfolio Strategies, LLC | Increased | 156.0K | 388.2K | +232.3K |
| D. E. Shaw & Co., Inc. | Increased | 414.9K | 644.9K | +230.0K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | 982.2K | 754.7K | -227.6K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 193.3K | 420.5K | +227.1K |
| BI Asset Management Fondsmaeglerselskab A/S | Reduced | 373.8K | 149.3K | -224.5K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Reduced | 3.9M | 3.7M | -221.9K |
| OPPENHEIMER & CO INC | Increased | 25.6K | 236.1K | +210.5K |
| Blackstone Inc. | Reduced | 2.8M | 2.6M | -198.8K |
| ALLIANCEBERNSTEIN L.P. | Reduced | 3.8M | 3.6M | -198.3K |
| Holocene Advisors, LP | New | 0 | 193.1K | +193.1K |
| Ilex Capital Partners (UK) LLP | New | 0 | 181.5K | +181.5K |
| SEI INVESTMENTS CO | Reduced | 437.1K | 256.8K | -180.4K |
| MML INVESTORS SERVICES, LLC | Increased | 67.3K | 247.5K | +180.2K |
| CAPTRUST FINANCIAL ADVISORS | Increased | 34.5K | 213.9K | +179.4K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 178.3K | +178.3K |
| Freestone Grove Partners LP | Increased | 527.8K | 698.7K | +170.9K |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 401.8K | 571.2K | +169.4K |
| BANK OF NOVA SCOTIA | New | 0 | 165.4K | +165.4K |
| NEUBERGER BERMAN GROUP LLC | Increased | 7.3M | 7.4M | +162.2K |
| AXQ CAPITAL, LP | Reduced | 192.9K | 34.7K | -158.2K |
| Orbis Allan Gray Ltd | Increased | 2.3M | 2.4M | +158.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 14.8M | 15.0M | +149.5K |
| Ensign Peak Advisors, Inc | Reduced | 186.3K | 42.7K | -143.6K |
| MARSHALL WACE, LLP | Increased | 18.5K | 161.6K | +143.0K |
| CITIGROUP INC | Reduced | 262.5K | 120.1K | -142.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.