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 September 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 |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 10.1M | 16.3% |
| DIMENSIONAL FUND ADVISORS LP | 9.2M | 14.9% |
| Bank of New York Mellon Corp | 6.4M | 10.4% |
| Boston Trust Walden Corp | 3.6M | 5.7% |
| UBS Group AG | 2.6M | 4.2% |
| BARCLAYS PLC | 2.1M | 3.4% |
| Connor, Clark & Lunn Investment Management Ltd. | 2.0M | 3.3% |
| EAGLE GLOBAL ADVISORS LLC | 1.9M | 3.1% |
| FMR LLC | 1.4M | 2.3% |
| ALPS ADVISORS INC | 1.1M | 1.8% |
| MILLER HOWARD INVESTMENTS INC /NY | 1.1M | 1.8% |
| Amundi | 1.1M | 1.7% |
| NEOS Investment Management LLC | 1.0M | 1.7% |
| RHUMBLINE ADVISERS | 941.3K | 1.5% |
| Fiera Capital Corp | 909.9K | 1.5% |
| Columbus Macro, LLC | 801.4K | 1.3% |
| PRINCIPAL FINANCIAL GROUP INC | 777.4K | 1.3% |
| EXCHANGE TRADED CONCEPTS, LLC | 662.1K | 1.1% |
| Edgestream Partners, L.P. | 654.0K | 1.1% |
| LPL Financial LLC | 639.3K | 1.0% |
| Thrivent Financial for Lutherans | 634.1K | 1.0% |
| SHAH CAPITAL MANAGEMENT | 521.7K | 0.8% |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 481.0K | 0.8% |
| Nuveen, LLC | 476.7K | 0.8% |
| Grey Fox Wealth Advisors, LLC | 457.8K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BARCLAYS PLC | Increased | 1.5M | 2.1M | +595.6K |
| UBS Group AG | Increased | 2.1M | 2.6M | +508.4K |
| Bank of New York Mellon Corp | Reduced | 6.9M | 6.4M | -484.1K |
| FMR LLC | Reduced | 1.9M | 1.4M | -475.3K |
| Ruffer LLP | Sold Out | 384.0K | 0 | -384.0K |
| EXCHANGE TRADED CONCEPTS, LLC | Reduced | 971.7K | 662.1K | -309.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 10.4M | 10.1M | -272.3K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | 728.8K | 481.0K | -247.8K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 9.0M | 9.2M | +187.8K |
| CITIGROUP INC | Increased | 120.1K | 301.1K | +181.0K |
| INTECH INVESTMENT MANAGEMENT LLC | Reduced | 235.4K | 72.0K | -163.4K |
| MIZUHO MARKETS AMERICAS LLC | New | 0 | 155.7K | +155.7K |
| BI Asset Management Fondsmaeglerselskab A/S | Sold Out | 149.3K | 0 | -149.3K |
| SEI INVESTMENTS CO | Reduced | 256.8K | 127.5K | -129.3K |
| KLP KAPITALFORVALTNING AS | Reduced | 235.0K | 110.0K | -125.0K |
| HighTower Advisors, LLC | Increased | 52.9K | 177.2K | +124.2K |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | Increased | 251.0K | 374.4K | +123.4K |
| EAGLE GLOBAL ADVISORS LLC | Increased | 1.8M | 1.9M | +113.9K |
| Amundi | Increased | 940.2K | 1.1M | +110.3K |
| Boston Trust Walden Corp | Increased | 3.5M | 3.6M | +100.3K |
| ALPS ADVISORS INC | Increased | 1.0M | 1.1M | +84.7K |
| LPL Financial LLC | Increased | 558.2K | 639.3K | +81.1K |
| HENNESSY ADVISORS INC | Reduced | 286.9K | 211.9K | -75.0K |
| MACKENZIE FINANCIAL CORP | Reduced | 147.5K | 87.7K | -59.9K |
| NISA INVESTMENT ADVISORS, LLC | Reduced | 125.4K | 66.3K | -59.1K |
| Lido Advisors, LLC | Sold Out | 56.9K | 0 | -56.9K |
| NEOS Investment Management LLC | Reduced | 1.1M | 1.0M | -55.8K |
| Riverwater Partners LLC | Increased | 103.5K | 158.6K | +55.1K |
| ING GROEP NV | New | 0 | 52.7K | +52.7K |
| Columbus Macro, LLC | Increased | 750.7K | 801.4K | +50.7K |
| Squarepoint Ops LLC | Increased | 77.1K | 127.0K | +49.9K |
| DEUTSCHE BANK AG\ | Increased | 211.4K | 260.4K | +48.9K |
| Crossmark Global Holdings, Inc. | Reduced | 67.7K | 23.1K | -44.6K |
| Y-Intercept (Hong Kong) Ltd | Increased | 32.0K | 74.3K | +42.2K |
| Oak Thistle LLC | New | 0 | 41.8K | +41.8K |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | Reduced | 338.3K | 297.9K | -40.4K |
| Thrivent Financial for Lutherans | Reduced | 674.2K | 634.1K | -40.1K |
| Farther Finance Advisors, LLC | Increased | 121.9K | 161.3K | +39.4K |
| FIRST CITIZENS BANK & TRUST CO | Reduced | 65.6K | 28.3K | -37.3K |
| Compound Planning, Inc. | New | 0 | 35.4K | +35.4K |
| SHAH CAPITAL MANAGEMENT | Reduced | 556.8K | 521.7K | -35.1K |
| OPPENHEIMER & CO INC | Reduced | 236.1K | 203.0K | -33.1K |
| Machina Capital S.A.S. | Sold Out | 28.7K | 0 | -28.7K |
| B. Riley Wealth Advisors, Inc. | New | 0 | 27.6K | +27.6K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | Sold Out | 26.9K | 0 | -26.9K |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | 140.5K | 116.0K | -24.5K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 2.0M | 2.0M | +23.8K |
| RHUMBLINE ADVISERS | Increased | 917.6K | 941.3K | +23.6K |
| Maryland State Retirement & Pension System | Reduced | 329.7K | 306.9K | -22.7K |
| Cambridge Investment Research Advisors, Inc. | Reduced | 71.6K | 49.1K | -22.5K |
| Apollon Wealth Management, LLC | Reduced | 58.5K | 37.8K | -20.7K |
| Hennion & Walsh Asset Management, Inc. | Increased | 254.6K | 274.0K | +19.4K |
| Fiera Capital Corp | Increased | 894.0K | 909.9K | +15.9K |
| IFP Advisors, Inc | Reduced | 22.3K | 7.6K | -14.6K |
| Concurrent Investment Advisors, LLC | New | 0 | 14.2K | +14.2K |
| Nuveen, LLC | Reduced | 490.7K | 476.7K | -14.0K |
| BESSEMER GROUP INC | Reduced | 16.1K | 2.1K | -14.0K |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 790.8K | 777.4K | -13.4K |
| Kestra Investment Management, LLC | Reduced | 38.6K | 25.3K | -13.3K |
| 111 Capital | Sold Out | 13.3K | 0 | -13.3K |
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.