Antero Midstream Corporation

AM • NYSE

Antero Midstream Corporation is a oil & gas midstream company in the energy sector on NYSE, led by Michael Kennedy, with a market cap of $8.6B. As of Q3 2025, 56% of shares are held by 457 institutional investors, with BlackRock, Inc. as the largest holder at 7.97%.

Chief Executive Officer and PresidentMichael Kennedy

Market Cap$8.6B

Oil & Gas Midstream

Energy

Employees604.0

Websiteanteromidstream.com

Country

United States of America

Overview

Overview of institutional ownership in AM as of Q3 2025 with a market cap of $9.3B

All Institutions

Institutions: 457
Value Held: $5.2B
Shares Held: 268.9M
Avg Position: $11.4M
Median Position: $747.0K

Hedge Funds

Hedge Funds: 53
Value Held: $313.3M
Shares Held: 16.1M
Avg Position: $5.9M
Median Position: $2.0M

Ownership Breakdown

Institutional (non-HF)

52.82%

$4.9B

Hedge Funds

3.37%

$313.3M

Retail & Other

43.81%

$4.1B

Based on market cap of $9.3B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in AM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$740.8M 0.01% of portfolio	7.97% 38.1M shares	Q4 2017 Held for 7y 11m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$723.4M 0.01% of portfolio	7.78% 37.2M shares	Q4 2017 Held for 7y 11m	$6.69T
Invesco Ltd. ETF Provider	Brian Christopher Hartigan CEO	$440.7M 0.07% of portfolio	4.74% 22.7M shares	Q1 2018 Held for 7y 8m	$633.08B
TORTOISE CAPITAL ADVISORS, L.L.C. Real Assets	Thomas Ibberson Florence CEO	$221.2M 2.85% of portfolio	2.38% 11.4M shares	Q2 2017 Held for 8y 5m	$7.8B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$216.7M 0.01% of portfolio	2.33% 11.1M shares	Q4 2017 Held for 7y 11m	$2.88T
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$181.0M 0.01% of portfolio	1.95% 9.3M shares	Q2 2019 Held for 6y 5m	$1.57T
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$179.3M 0.04% of portfolio	1.93% 9.2M shares	Q2 2020 Held for 5y 5m	$466.32B
Bank of New York Mellon Corp Institution	Robin Vince CEO	$152.6M 0.03% of portfolio	1.64% 7.8M shares	Q4 2017 Held for 7y 11m	$556.34B
N Neuberger Berman Group LLC Institution	-	$143.5M 0.10% of portfolio	1.54% 7.4M shares	Q2 2017 Held for 8y 5m	$136.94B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$124.3M 0.01% of portfolio	1.34% 6.4M shares	Q2 2017 Held for 8y 5m	$1.65T

Net Capital Flow

Institutional buying and selling activity for AM in Q3 2025

Traded: +$32.3M
Buyers: 216
Sellers: 214
Total Bought: +$426.0M
Total Sold: −$393.7M
Avg Position: $10.2M

Biggest Buyers

Institution	Net Bought	Current Position
GEODE CAPITAL MANAGEMENT LLC ETF Provider	+$62.0M +3.2M shares	$181.0M 9.3M shares
B BROOKFIELD ASSET MANAGEMENT INC. RIA/Wealth	+$36.4M +1.9M shares	$36.4M 1.9M shares
Bank of New York Mellon Corp Institution	+$27.8M +1.4M shares	$152.6M 7.8M shares
S SIR Capital Management, L.P. Hedge Fund•Long/Short	+$24.6M +1.3M shares	$26.9M 1.4M shares
Q Qube Research & Technologies Ltd Institution	+$16.9M +871.8K shares	$37.5M 1.9M shares
Gotham Asset Management, LLC Hedge Fund•Long/Short	+$15.6M +804.3K shares	$22.9M 1.2M shares
B BNP PARIBAS ARBITRAGE, SA Institution	+$15.6M +802.5K shares	$26.0M 1.3M shares
KAYNE ANDERSON CAPITAL ADVISORS LP Private Equity	+$15.1M +776.9K shares	$70.0M 3.6M shares
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant	+$11.5M +591.3K shares	$22.4M 1.2M shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	+$10.7M +551.3K shares	$10.7M 551.3K shares

Biggest Sellers

Institution	Net Sold	Current Position
Invesco Ltd. ETF Provider	−$51.8M −2.7M shares	$440.7M 22.7M shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$31.6M −1.6M shares	$8.6M 442.3K shares
GOLDMAN SACHS GROUP INC Institution	−$27.9M −1.4M shares	$41.0M 2.1M shares
J JANE STREET GROUP, LLC Institution	−$15.1M −797.8K shares	Sold Off 0 shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	−$14.7M −774.0K shares	Sold Off 0 shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	−$13.9M −733.5K shares	Sold Off 0 shares
P Pacer Advisors, Inc. Institution	−$13.5M −694.4K shares	$23.6M 1.2M shares
MORGAN STANLEY RIA/Wealth	−$12.0M −615.5K shares	$124.3M 6.4M shares
D D. E. Shaw & Co., Inc. Institution	−$11.8M −607.6K shares	$8.3M 424.5K shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$9.9M −507.3K shares	$17.8M 913.6K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited AM in Q3 2025

New Positions: 28
New Value: $22.1M
Exited Positions: 55
Exited Value: $95.2M

New Positions

Institution	Position Value
F Freestone Grove Partners LP Hedge Fund•Multi-Strategy	$9.9M 507.0K shares
Strategic Global Advisors, LLC Long Only Manager	$3.9M 201.8K shares
B BI Asset Management Fondsmaeglerselskab A/S Institution	$2.7M 137.7K shares
Voleon Capital Management LP Hedge Fund•Quant	$1.7M 87.8K shares
Z Zurich Insurance Group Ltd/FI Institution	$1.3M 65.2K shares
P PICTON MAHONEY ASSET MANAGEMENT Institution	$889.0K 45.7K shares
OSBORNE PARTNERS CAPITAL MANAGEMENT RIA/Wealth	$338.7K 17.4K shares
P PFG Investments, LLC Institution	$285.1K 14.7K shares
C CI Private Wealth, LLC RIA/Wealth	$245.5K 12.6K shares
P Polymer Capital Management LLC Hedge Fund•Multi-Strategy	$220.8K 11.4K shares

Exited Positions

Institution	Previous Position
J JANE STREET GROUP, LLC Institution	$15.1M 797.8K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$14.7M 774.0K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	$13.9M 733.5K shares
Trexquant Investment LP Hedge Fund•Quant	$9.4M 495.4K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$7.5M 395.6K shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	$5.6M 293.2K shares
A Aventail Capital Group, LP Hedge Fund•Long/Short	$5.1M 270.4K shares
EAM Investors, LLC Long Only Manager	$4.1M 215.8K shares
O Oak Thistle LLC Institution	$2.4M 128.7K shares
Paradiem, LLC RIA/Wealth	$2.3M 121.3K shares

Options Activity

Institutions with the largest Call and Put options positions in AM as of Q3 2025

Call Positions: 14
Call Value: $44.8M
Put Positions: 11
Put Value: $19.4M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$12.2M 6.3K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$7.3M 3.8K contracts
P PEAK6 LLC Institution	$6.8M 3.5K contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$4.8M 2.5K contracts
W WOLVERINE TRADING, LLC Institution	$4.0M 2.1K contracts
J JANE STREET GROUP, LLC Institution	$3.0M 1.5K contracts
Caption Management, LLC Hedge Fund•Long/Short	$2.3M 1.2K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$1.6M 832.0 contracts
Walleye Trading LLC RIA/Wealth	$806.8K 415.0 contracts
S SIG BROKERAGE, LP Institution	$680.4K 350.0 contracts

Put Positions

Institution	Position Value
Ripple Effect Asset Management LP Hedge Fund•Long/Short	$11.7M 6.0K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$2.1M 1.1K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.8M 902.0 contracts
Walleye Trading LLC RIA/Wealth	$1.2M 642.0 contracts
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$968.1K 498.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$486.0K 250.0 contracts
J JANE STREET GROUP, LLC Institution	$441.3K 227.0 contracts
W WOLVERINE TRADING, LLC Institution	$371.9K 191.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$313.0K 161.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$95.3K 49.0 contracts

Most Committed Institutions

Institutions with AM as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
R RR Advisors, LLC Hedge Fund•Sector	Robert Joseph Raymond CEO	7.67% $32.6M	0.35% 1.7M shares	Q2 2020 Held for 5y 5m	$424.7M
Ripple Effect Asset Management LP Hedge Fund•Long/Short	Donald Stoltz COO	5.71% $9.9M	0.11% 510.0K shares	Q4 2024 Held for 11 months	$173.7M
TORTOISE CAPITAL ADVISORS, L.L.C. Real Assets	Thomas Ibberson Florence CEO	2.85% $221.2M	2.38% 11.4M shares	Q2 2017 Held for 8y 5m	$7.8B
S SIR Capital Management, L.P. Hedge Fund•Long/Short	Mirco Ronald Elias CFO	2.41% $26.9M	0.29% 1.4M shares	Q3 2023 Held for 2y 2m	$1.1B
Pinnacle Holdings, LLC RIA/Wealth	David Monroe Poarch Managing Partner	2.22% $5.5M	0.06% 281.0K shares	Q1 2020 Held for 5y 8m	$246.2M
C Chung Wu Investment Group, LLC Institution	-	2.09% $2.5M	0.03% 129.4K shares	Q4 2024 Held for 11 months	$120.1M
SHAH CAPITAL MANAGEMENT Hedge Fund•Long/Short	Himanshu Harshad Shah President	2.04% $11.4M	0.12% 586.0K shares	Q1 2020 Held for 5y 8m	$559.0M
Guild Investment Management, Inc. RIA/Wealth	Jr. Montague Guild Founder	1.89% $2.4M	0.03% 122.7K shares	Q4 2024 Held for 11 months	$126.0M
Barnett & Company, Inc. RIA/Wealth	Rodrigo Fernandez Tinoco Member	1.68% $2.2M	0.02% 111.5K shares	Q3 2021 Held for 4y 2m	$129.3M
KAYNE ANDERSON CAPITAL ADVISORS LP Private Equity	Albert Rabil CEO	1.55% $70.0M	0.75% 3.6M shares	Q2 2023 Held for 2y 5m	$4.5B

Hedge Fund Spotlight

Discover hedge funds investing in AM

Bridgewater Associates, LP

Hedge Fund • Global Macro

Portfolio ManagerNir Bar Dea

Portfolio Value: $25.5B
Positions: 1,015
Last Reported: Q3 2025

Sector Allocation

Position in Antero Midstream Corporation

Market Value: $2.1M
Shares Held: 107.1K
Portfolio Weight: 0.01%
Owned Since: 2025-Q3

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3 Alphabet Inc. GOOGL	Internet Content & Information Communication Services	$645.2M	2.53%