ANTERO MIDSTREAM CORP AM
COM · Common Stock · CUSIP 03676B102
- SectorUtilities
- IndustryNatural Gas Transmission
- HeadquartersDenver, CO
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.7m this quarter). Holder counts are more reliable. Shares outstanding: 479.2m as of 2025-04-25, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $17.99. Options: 19 managers hold calls ($79.2m notional), 19 hold puts ($41.4m).
Trends to Q1 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 316 |
| Q4 2022 | 335 |
| Q1 2023 | 348 |
| Q2 2023 | 350 |
| Q3 2023 | 370 |
| Q4 2023 | 395 |
| Q1 2024 | 398 |
| Q2 2024 | 417 |
| Q3 2024 | 425 |
| Q4 2024 | 435 |
| Q1 2025 | 455 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 190 | 132 |
| Q3 2023 | 187 | 134 |
| Q4 2023 | 188 | 152 |
| Q1 2024 | 204 | 164 |
| Q2 2024 | 186 | 184 |
| Q3 2024 | 189 | 190 |
| Q4 2024 | 200 | 181 |
| Q1 2025 | 246 | 165 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $30.8m | $6.4m | 0.21 |
| Q3 2024 | $41.0m | $8.0m | 0.20 |
| Q4 2024 | $45.9m | $44.2m | 0.96 |
| Q1 2025 | $79.2m | $41.4m | 0.52 |
Biggest buyers
| Boston Trust Walden Corp | New | +2.8m |
| TORTOISE CAPITAL ADVISORS, L.L.C. | Added | +2.2m |
| UBS Group AG | Added | +1.5m |
| GOLDMAN SACHS GROUP INC | Added | +1.4m |
| HRT FINANCIAL LP | New | +1.0m |
| MILLENNIUM MANAGEMENT LLC | Added | +795.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Added | +697.2k |
| Invesco Ltd. | Added | +587.0k |
| VOYA INVESTMENT MANAGEMENT LLC | Added | +505.4k |
| ALGERT GLOBAL LLC | New | +481.3k |
Biggest sellers
| Pacer Advisors, Inc. | Reduced | -9.1m |
| Cinctive Capital Management LP | Sold out | -2.5m |
| BlackRock, Inc. | Reduced | -1.7m |
| Blackstone Inc. | Reduced | -1.6m |
| SIR Capital Management, L.P. | Reduced | -1.0m |
| Balyasny Asset Management L.P. | Reduced | -1.0m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -837.0k |
| TUDOR INVESTMENT CORP ET AL | Reduced | -814.8k |
| Squarepoint Ops LLC | Reduced | -384.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -383.0k |
Biggest calls
| PEAK6 LLC | Added | $12.9m719.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $12.7m702.9k shares |
| GROUP ONE TRADING LLC | Added | $11.4m636.0k shares |
| Caption Management, LLC | Unchanged | $8.0m445.2k shares |
| CITADEL ADVISORS LLC | Reduced | $5.5m304.2k shares |
| JPMORGAN CHASE & CO | New | $5.4m300.0k shares |
| Twin Tree Management, LP | Reduced | $4.6m255.4k shares |
| NOMURA HOLDINGS INC | New | $4.5m250.0k shares |
| WOLVERINE TRADING, LLC | Added | $2.9m163.9k shares |
| BANK OF AMERICA CORP /DE/ | New | $2.7m150.0k shares |
Biggest puts
| UBS Group AG | New | $7.6m420.0k shares |
| NOMURA HOLDINGS INC | New | $7.2m400.0k shares |
| JPMORGAN CHASE & CO | New | $5.8m325.0k shares |
| Ripple Effect Asset Management LP | Reduced | $5.4m300.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.4m189.8k shares |
| WOLVERINE TRADING, LLC | Reduced | $3.3m185.6k shares |
| CITADEL ADVISORS LLC | Reduced | $2.6m146.2k shares |
| IMC-Chicago, LLC | Added | $1.4m75.4k shares |
| BANK OF AMERICA CORP /DE/ | New | $1.3m70.0k shares |
| SIG BROKERAGE, LP | New | $810.0k45.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
No one currently above 5% in the filings since 19 Dec 2024.
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26)
Insider purchases and sales in Q1 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 2 | $3.3m | — |
| Q3 2023 | 1 | $71.9k | 2 | $260.1k | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 1 | $224.1k | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 1 | $343.1k | — |
| Q4 2024 | 1 | $17.7k | 1 | $146.6k | — |
| Q1 2025 | 0 | — | 0 | — | — |
None reported in Q1 2025.
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 38.6m $694.2m | Reduced -1.7m |
| VANGUARD GROUP INC 0.01% of their portfolio | 35.6m $641.7m | Reduced -220.9k |
| Invesco Ltd. 0.10% of their portfolio | 30.6m $551.4m | Added +587.0k |
| STATE STREET CORP 0.01% of their portfolio | 11.6m $209.2m | Added +127.3k |
| TORTOISE CAPITAL ADVISORS, L.L.C. 2.03% of their portfolio | 9.3m $167.6m | Added +2.2m |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 9.1m $164.7m | Added +34.6k |
| NEUBERGER BERMAN GROUP LLC 0.11% of their portfolio | 7.3m $131.3m | Added +23.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 6.2m $112.0m | Added +116.1k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 6.0m $107.8m | Added +295.4k |
| MORGAN STANLEY 0.01% of their portfolio | 5.9m $106.7m | Reduced -194.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.18% of their portfolio | 4.7m $83.9m | Added +697.2k |
| NORGES BANK 0.01% of their portfolio | 4.2m $75.6m | Added +51.6k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 4.0m $72.4m | Reduced -84.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 3.9m $69.7m | Added +1.4m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 3.8m $69.1m | Added +11.5k |
| Clearbridge Investments, LLC 0.06% of their portfolio | 3.8m $67.8m | Reduced -30.3k |
| MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio | 3.0m $54.2m | Added +795.5k |
| KAYNE ANDERSON CAPITAL ADVISORS LP 1.17% of their portfolio | 2.9m $53.0m | Reduced -4.8k |
| Boston Trust Walden Corp 0.37% of their portfolio | 2.8m $51.3m | New |
| UBS Group AG 0.01% of their portfolio | 2.6m $47.4m | Added +1.5m |
| WESTWOOD HOLDINGS GROUP INC 0.33% of their portfolio | 2.5m $44.2m | Added +308.6k |
| RR Advisors, LLC 9.65% of their portfolio | 2.2m $40.4m | Reduced -266.0k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 2.2m $39.3m | Added +99.7k |
| Brave Warrior Advisors, LLC 0.79% of their portfolio | 1.9m $34.5m | Reduced -14.3k |
| BARCLAYS PLC 0.02% of their portfolio | 1.9m $34.4m | Added +138.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.8m $32.4m | Added +462.1k |
| MILLER HOWARD INVESTMENTS INC /NY 0.99% of their portfolio | 1.7m $31.2m | Added +13.2k |
| CHICKASAW CAPITAL MANAGEMENT LLC 1.18% of their portfolio | 1.7m $30.7m | Reduced -78.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 1.5m $26.8m | Reduced -837.0k |
| Nuveen, LLC 0.01% of their portfolio | 1.4m $25.2m | First filing |
| SIR Capital Management, L.P. 2.07% of their portfolio | 1.3m $23.5m | Reduced -1.0m |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 1.3m $23.2m | Added +379.0k |
| ALPS ADVISORS INC 0.13% of their portfolio | 1.2m $22.1m | Added +223.5k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.08% of their portfolio | 1.1m $20.5m | Reduced -383.0k |
| JENNISON ASSOCIATES LLC 0.01% of their portfolio | 1.1m $19.5m | Added +49.5k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 1.0m $18.4m | Added +14.1k |
| HRT FINANCIAL LP 0.13% of their portfolio | 1.0m $18.3m | New |
| Pacer Advisors, Inc. 0.04% of their portfolio | 964.8k $17.4m | Reduced -9.1m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 946.1k $17.0m | Added +43.3k |
| Ripple Effect Asset Management LP 19.44% of their portfolio | 900.0k $16.2m | Reduced -275.0k |
| Brandywine Global Investment Management, LLC 0.10% of their portfolio | 801.6k $14.4m | Added +109.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 793.3k $14.3m | Added +505.4k |
| EXCHANGE TRADED CONCEPTS, LLC 0.25% of their portfolio | 789.7k $14.2m | Reduced -138.3k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 786.9k $14.2m | Added +442.2k |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 0.86% of their portfolio | 774.0k $13.9m | Reduced -120.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 773.9k $13.9m | Reduced -3.2k |
| SHAH CAPITAL MANAGEMENT 2.81% of their portfolio | 765.6k $13.8m | Reduced -23.8k |
| OPPENHEIMER & CO INC 0.20% of their portfolio | 742.3k $13.4m | Added +48.3k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 731.9k $13.2m | Added +413.9k |
| Swiss National Bank 0.01% of their portfolio | 699.4k $12.6m | Reduced -10.5k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 632.1k $11.4m | Added +447.0k |
| Long Focus Capital Management, LLC 0.75% of their portfolio | 610.0k $11.0m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 597.4k $10.8m | Reduced -18.0k |
| California Public Employees Retirement System 0.01% of their portfolio | 580.7k $10.5m | Added +6.8k |
| Trexquant Investment LP 0.12% of their portfolio | 574.7k $10.3m | Added +291.5k |
| Legal & General Group Plc 0.00% of their portfolio | 572.8k $10.3m | Added +13.9k |
| PDT Partners, LLC 0.73% of their portfolio | 570.7k $10.3m | Added +174.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 563.0k $10.1m | Added +221.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 553.3k $10.0m | Added +60.6k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 547.6k $9.9m | Reduced -64.3k |
| Cetera Investment Advisers 0.02% of their portfolio | 544.0k $9.8m | Reduced -32.1k |
| Squarepoint Ops LLC 0.02% of their portfolio | 524.4k $9.4m | Reduced -384.8k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 523.4k $9.4m | Reduced -111.5k |
| Advisors Asset Management, Inc. 0.17% of their portfolio | 515.0k $9.3m | Added +75.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 505.0k $9.1m | First filing |
| Columbus Macro, LLC 1.18% of their portfolio | 496.2k $8.9m | Added +33.8k |
| ALGERT GLOBAL LLC 0.21% of their portfolio | 481.3k $8.7m | New |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 479.1k $8.6m | Added +430.7k |
| Jump Financial, LLC 0.13% of their portfolio | 466.8k $8.4m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 446.8k $8.0m | Reduced -11.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 429.5k $7.7m | Added +17.2k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 418.8k $7.5m | Reduced -24.8k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 417.2k $7.5m | Added +192.9k |
| MACKENZIE FINANCIAL CORP 0.01% of their portfolio | 414.4k $7.5m | Added +218.1k |
| Retirement Systems of Alabama 0.03% of their portfolio | 407.8k $7.3m | Reduced -1.9k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 405.3k $7.3m | Reduced -30.1k |
| CIBC Private Wealth Group LLC 0.01% of their portfolio | 403.0k $6.4m | Added +12.3k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 398.0k $7.2m | Added +146.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 387.8k $7.0m | Reduced -8.5k |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 377.4k $6.8m | Added +136.4k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 375.6k $6.8m | Reduced -3.6k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.11% of their portfolio | 373.5k $6.7m | Added +604 |
| Corebridge Financial, Inc. 0.04% of their portfolio | 371.5k $6.7m | Reduced -11.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 357.0k $6.4m | Reduced -15.4k |
| LPL Financial LLC 0.00% of their portfolio | 355.2k $6.4m | Added +36.5k |
| HENNESSY ADVISORS INC 0.21% of their portfolio | 343.8k $6.2m | Added +5.9k |
| EVERGREEN CAPITAL MANAGEMENT LLC 0.21% of their portfolio | 341.0k $6.1m | Reduced -23.9k |
| FMR LLC 0.00% of their portfolio | 339.2k $6.1m | Reduced -313.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 332.4k $6.0m | Reduced -3.6k |
| NBW CAPITAL LLC 1.21% of their portfolio | 303.0k $5.5m | Reduced -158.8k |
| Waverly Advisors, LLC 0.07% of their portfolio | 303.0k $5.5m | New |
| Maryland State Retirement & Pension System 0.13% of their portfolio | 300.0k $5.4m | Added +2.6k |
| Edgestream Partners, L.P. 0.17% of their portfolio | 282.7k $5.1m | Added +154.1k |
| Pinnacle Holdings, LLC 1.93% of their portfolio | 282.5k $5.1m | Reduced -2.6k |
| Covalis Capital LLP 1.11% of their portfolio | 268.6k $4.8m | Reduced -133.2k |
| Phocas Financial Corp. 0.72% of their portfolio | 261.9k $4.7m | Reduced -15.0k |
| ExodusPoint Capital Management, LP 0.06% of their portfolio | 261.0k $4.7m | Reduced -144.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 257.8k $4.6m | Reduced -4.2k |
| QRG CAPITAL MANAGEMENT, INC. 0.05% of their portfolio | 253.6k $4.6m | Added +899 |
| Corigliano Investment Advisers, LLC 2.01% of their portfolio | 250.0k $4.5m | New |