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 2026-10-10T12:08:28.848Z

Recent Form 4 activity

2026-08-072026-08-06KLIMLEY BROOKS JS5,000Not reported
2026-08-062026-08-04Pearce SheriS16,000Not reported
2026-07-152026-07-10Keenan W Howard JRA1,907Not reported
2026-07-152026-07-10DEA PETER AA1,907Not reported
2026-07-152026-07-10Chisholm NancyA1,907Not reported
2026-07-152026-07-10MOLLENKOPF JOHN CA1,907Not reported
2026-07-152026-07-10Munoz Jeffrey S.A1,907Not reported
2026-07-152026-07-10MCARDLE JANINE JA1,907Not reported
2026-07-152026-07-10KEYTE DAVID HA3,225Not reported
2026-07-152026-07-10KLIMLEY BROOKS JA1,907Not reported

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

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.

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.

No records are available for this view.

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.