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Public ownership evidence

Antero Midstream Corporation Common Stock (AM) Ownership Disclosures

Read AM insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-132026-10-10MCARDLE JANINE JA2,015Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-10 and its public availability date is 2026-10-13. Subtracting those calendar dates gives 3 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001104659-26-115583 ↗SEC 0001104659-26-115582 ↗SEC 0001104659-26-115579 ↗

Recent Form 4 activity

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2026-10-132026-10-10MCARDLE JANINE JA2,015Not reported
2026-10-132026-10-10Munoz Jeffrey S.A2,015Not reported
2026-10-132026-10-10MOLLENKOPF JOHN CA2,015Not reported
2026-10-132026-10-10Chisholm NancyA2,015Not reported
2026-10-132026-10-10DEA PETER AA2,015Not reported
2026-10-132026-10-10Keenan W Howard JRA2,015Not reported
2026-10-132026-10-10KLIMLEY BROOKS JA2,015Not reported
2026-10-132026-10-10KEYTE DAVID HA3,408Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-29203$4,618None
Cornerstone Financial Management LLC2026-03-312026-08-29111$2,531None
Cornerstone Financial Management LLC2025-12-312026-08-29111$1,975None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-2931,355$564,390None
Advisors Asset Management, Inc.2021-12-312026-08-281,441,056$13,949,422None
Advisors Asset Management, Inc.2022-12-312026-08-281,147,393$12,380,370None
Advisors Asset Management, Inc.2020-06-302026-08-281,800,477$9,182,433None
Advisors Asset Management, Inc.2022-06-302026-08-281,338,841$12,117,000None
Advisors Asset Management, Inc.2021-09-302026-08-281,509,222$15,726,000None
Corient Private Wealth LP2026-06-302026-08-2850,855$1,156,954None
Principia Wealth Advisory, LLC2026-06-302026-08-272$46None
Advisors Asset Management, Inc.2024-03-312026-08-27191,317$2,689,917None
Advisors Asset Management, Inc.2025-03-312026-08-27515,020$9,270,360None
Advisors Asset Management, Inc.2022-09-302026-08-271,301,503$11,948,000None
Advisors Asset Management, Inc.2020-12-312026-08-271,952,297$15,052,000None
Advisors Asset Management, Inc.2022-03-312026-08-271,396,624$15,181,303None
Advisors Asset Management, Inc.2023-06-302026-08-27605,078$7,018,905None
Advisors Asset Management, Inc.2023-09-302026-08-27341,402$4,089,996None
Advisors Asset Management, Inc.2023-03-312026-08-27889,706$9,333,016None
Advisors Asset Management, Inc.2021-03-312026-08-271,818,895$16,424,622None
Advisors Asset Management, Inc.2021-06-302026-08-271,587,984$16,499,000None
Advisors Asset Management, Inc.2020-09-302026-08-272,029,729$10,899,645None
Advisors Asset Management, Inc.2025-09-302026-08-27247,251$4,806,559None
Advisors Asset Management, Inc.2023-12-312026-08-2792,247$1,155,855None
Advisors Asset Management, Inc.2019-12-312026-08-26741,264$5,626,194None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2622,200$505,050None
Advisors Asset Management, Inc.2025-06-302026-08-25366,496$6,945,099None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25383,063$8,714,683None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-258,714,683$383,063,000None
Advisors Asset Management, Inc.2024-09-302026-08-22358,928$5,401,866None
Advisors Asset Management, Inc.2024-06-302026-08-22324,706$4,786,166None
Advisors Asset Management, Inc.2024-12-312026-08-22439,387$6,630,350None
Advisors Asset Management, Inc.2025-12-312026-08-22240,926$4,286,074None
Advisors Asset Management, Inc.2020-03-312026-08-221,402,206$2,944,633None
GILL CAPITAL PARTNERS, LLC2026-06-302026-08-2123,705$539,289None
Kingsview Wealth Management, LLC2026-06-302026-08-209,651$219,565None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20231,162$5,258,937None
Sankala Group LLC2026-06-302026-08-1994$2,123None
Advisors Asset Management, Inc.2019-09-302026-08-19296,195$2,191,843None
Advisors Asset Management, Inc.2019-06-302026-08-196,714$76,942None
Ensign Peak Advisors, Inc2026-03-312026-08-19186,280$4,247,184None
Ensign Peak Advisors, Inc2025-12-312026-08-19188,852$3,359,677None
Ensign Peak Advisors, Inc2025-09-302026-08-19145,143$2,821,580None
Fulcrum Asset Management LLP2026-06-302026-08-1940,112$914,554None
Livforsakringsbolaget Skandia, Omsesidigt2026-06-302026-08-19393$220,190None
Comprehensive Money Management Services LLC2026-06-302026-08-1814,845$337,724None
Corient Private Wealth LP2026-06-302026-08-1851,788$1,178,180None
Empowered Funds, LLC2026-06-302026-08-189,334$212,349None
Empowered Funds, LLC2026-06-302026-08-181,471$33,465None
Empowered Funds, LLC2026-06-302026-08-181,028$23,387None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗B. Riley Wealth Advisors, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.