Antero Midstream Corporation
US ˙ NYSE ˙ US03676B1026

SecurityAM / Antero Midstream Corporation
InstitutionXponance, Inc.
Latest Disclosed Ownership46,718 shares
Latest Disclosed Value $ 1,065,170
Xponance, Inc. reports 25.76% increase in ownership of AM / Antero Midstream Corporation

On May 13, 2026 - Xponance, Inc. filed a 13F-HR form disclosing ownership of 46,718 shares of Antero Midstream Corporation (US:AM) valued at $1,065,170 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 37,149 shares of Antero Midstream Corporation. This represents a change in shares of 25.76% during the quarter. The current value of the position is $993,692 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F ANTERO MIDSTREAM COM 03676B102 46,718 9,569 25.76 1,065 61.36 0.0076
2026-02-12 2025-12-31 13F ANTERO MIDSTREAM COM 03676B102 37,149 -5,503 -12.90 661 -20.39 0.0050
2025-11-12 2025-09-30 13F ANTERO MIDSTREAM COM 03676B102 42,652 -5,109 -10.70 829 -8.40 0.0066
2025-08-14 2025-06-30 13F ANTERO MIDSTREAM COM 03676B102 47,761 -8,633 -15.31 905 -10.84 0.0076
2025-05-01 2025-03-31 13F ANTERO MIDSTREAM COM 03676B102 56,394 2,508 4.65 1,015 24.85 0.0098
2025-02-11 2024-12-31 13F ANTERO MIDSTREAM COM 03676B102 53,886 5,874 12.23 813 12.60 0.0074
2024-11-12 2024-09-30 13F ANTERO MIDSTREAM COM 03676B102 48,012 -685 -1.41 723 0.70 0.0070
2024-08-14 2024-06-30 13F ANTERO MIDSTREAM COM 03676B102 48,697 -2,223 -4.37 718 0.28 0.0073
2024-05-13 2024-03-31 13F ANTERO MIDSTREAM COM 03676B102 50,920 -5,508 -9.76 716 1.13 0.0075
2024-01-31 2023-12-31 13F ANTERO MIDSTREAM COM 03676B102 56,428 -1,226 -2.13 707 2.46 0.0085
2023-10-24 2023-09-30 13F ANTERO MIDSTREAM COM 03676B102 57,654 4,254 7.97 691 11.47 0.0094
2023-07-14 2023-06-30 13F ANTERO MIDSTREAM COM 03676B102 53,400 9,039 20.38 619 33.12 0.0082
2023-04-18 2023-03-31 13F ANTERO MIDSTREAM COM 03676B102 44,361 113 0.26 465 -2.52 0.0068
2023-01-24 2022-12-31 13F ANTERO MIDSTREAM COM 03676B102 44,248 4,777 12.10 477 31.77 0.0077
2022-10-24 2022-09-30 13F ANTERO MIDSTREAM COM 03676B102 39,471 582 1.50 362 2.84 0.0070
2022-08-02 2022-06-30 13F ANTERO MIDSTREAM COM 03676B102 38,889 2,938 8.17 352 -9.97 0.0071
2022-04-20 2022-03-31 13F ANTERO MIDSTREAM COM 03676B102 35,951 -203 -0.56 391 11.71 0.0065
2022-01-31 2021-12-31 13F ANTERO MIDSTREAM COM 03676B102 36,154 -688 -1.87 350 -8.85 0.0055
2021-11-05 2021-09-30 13F ANTERO MIDSTREAM COM 03676B102 36,842 3,182 9.45 384 9.71 0.0073
2021-08-12 2021-06-30 13F ANTERO MIDSTREAM COM 03676B102 33,660 3,560 11.83 350 28.68 0.0064
2021-05-10 2021-03-31 13F ANTERO MIDSTREAM COM 03676B102 30,100 18 0.06 272 17.24 0.0058
2021-02-11 2020-12-31 13F ANTERO MIDSTREAM COM 03676B102 30,082 -159 -0.53 232 43.21 0.0051
2020-10-26 2020-09-30 13F ANTERO MIDSTREAM COM 03676B102 30,241 4,628 18.07 162 23.66 0.0040
2020-08-14 2020-06-30 13F ANTERO MIDSTREAM COM 03676B102 25,613 25,613 131 0.0034
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.