Antero Midstream Corporation
US ˙ NYSE ˙ US03676B1026

SecurityAM / Antero Midstream Corporation
InstitutionSignaturefd, Llc
Latest Disclosed Ownership20,920 shares
Latest Disclosed Value $ 476,981
Signaturefd, Llc reports 0.27% increase in ownership of AM / Antero Midstream Corporation

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 20,920 shares of Antero Midstream Corporation (US:AM) valued at $476,976 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 20,864 shares of Antero Midstream Corporation. This represents a change in shares of 0.27% during the quarter. The current value of the position is $450,198 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.

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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)
2026-04-07 2026-03-31 13F ANTERO MIDSTREAM COM 03676B102 20,920 56 0.27 477 28.30 0.0073
2026-01-20 2025-12-31 13F ANTERO MIDSTREAM COM 03676B102 20,864 -249 -1.18 371 -9.51 0.0057
2025-10-21 2025-09-30 13F ANTERO MIDSTREAM COM 03676B102 21,113 -460 -2.13 410 0.49 0.0065
2025-07-16 2025-06-30 13F ANTERO MIDSTREAM COM 03676B102 21,573 -263 -1.20 409 3.82 0.0070
2025-05-02 2025-03-31 13F ANTERO MIDSTREAM COM 03676B102 21,836 929 4.44 393 24.76 0.0074
2025-02-10 2024-12-31 13F ANTERO MIDSTREAM COM 03676B102 20,907 -4,889 -18.95 315 -18.81 0.0060
2024-10-21 2024-09-30 13F ANTERO MIDSTREAM COM 03676B102 25,796 1,959 8.22 388 10.54 0.0074
2024-07-29 2024-06-30 13F ANTERO MIDSTREAM COM 03676B102 23,837 2,419 11.29 351 16.61 0.0071
2024-05-03 2024-03-31 13F ANTERO MIDSTREAM COM 03676B102 21,418 18 0.08 301 12.31 0.0064
2024-02-01 2023-12-31 13F ANTERO MIDSTREAM COM 03676B102 21,400 465 2.22 268 7.20 0.0062
2023-11-03 2023-09-30 13F ANTERO MIDSTREAM COM 03676B102 20,935 1,750 9.12 251 12.61 0.0065
2023-08-01 2023-06-30 13F ANTERO MIDSTREAM COM 03676B102 19,185 13,413 232.38 223 270.00 0.0057
2023-04-28 2023-03-31 13F ANTERO MIDSTREAM COM 03676B102 5,772 292 5.33 61 1.69 0.0017
2023-01-30 2022-12-31 13F ANTERO MIDSTREAM COM 03676B102 5,480 5,480 59 0.0017
2022-04-29 2022-03-31 13F ANTERO MIDSTREAM COM 03676B102 0 -2,150 -100.00 0 -100.00
2022-01-25 2021-12-31 13F ANTERO MIDSTREAM COM 03676B102 2,150 0 0.00 21 -4.55 0.0006
2021-10-28 2021-09-30 13F ANTERO MIDSTREAM COM 03676B102 2,150 0 0.00 22 0.00 0.0008
2021-07-26 2021-06-30 13F ANTERO MIDSTREAM COM 03676B102 2,150 -1,050 -32.81 22 -24.14 0.0009
2021-04-30 2021-03-31 13F ANTERO MIDSTREAM COM 03676B102 3,200 -3,600 -52.94 29 -44.23 0.0013
2021-02-11 2020-12-31 13F ANTERO MIDSTREAM COM 03676B102 6,800 -50 -0.73 52 40.54 0.0025
2020-11-03 2020-09-30 13F ANTERO MIDSTREAM COM 03676B102 6,850 3,125 83.89 37 94.74 0.0020
2020-07-30 2020-06-30 13F ANTERO MIDSTREAM COM 03676B102 3,725 -6,324 -62.93 19 -9.52 0.0011
2020-04-23 2020-03-31 13F ANTERO MIDSTREAM COM 03676B102 10,049 -5,077 -33.56 21 -81.74 0.0018
2020-02-05 2019-12-31 13F ANTERO MIDSTREAM COM 03676B102 15,126 3,351 28.46 115 32.18 0.0085
2019-10-16 2019-09-30 13F ANTERO MIDSTREAM COM 03676B102 11,775 1,650 16.30 87 -25.00 0.0071
2019-07-31 2019-06-30 13F ANTERO MIDSTREAM COM 03676B102 10,125 3,265 47.59 116 22.11 0.0100
2019-05-09 2019-03-31 13F ANTERO MIDSTREAM COM 03676B102 6,860 3,235 89.24 95 21.79 0.0081
2019-02-13 2018-12-31 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 3,625 -8,100 -69.08 78 -76.79 0.0073
2018-11-14 2018-09-30 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 11,725 -1,350 -10.33 336 -12.95 0.0341
2018-08-14 2018-06-30 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 13,075 1,575 13.70 386 29.53 0.0431
2018-05-08 2018-03-31 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 11,500 275 2.45 298 -8.59 0.0350
2018-02-13 2017-12-31 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 11,225 0 0.00 326 -7.91 0.0393
2017-11-14 2017-09-30 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 11,225 -1,275 -10.20 354 -14.70 0.0470
2017-08-14 2017-06-30 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 12,500 0 0.00 415 0.24 0.0603
2017-05-15 2017-03-31 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 12,500 0 0.00 414 7.25 0.0613
2017-02-14 2016-12-31 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 12,500 0 0.00 386 15.57 0.0649
2016-11-14 2016-09-30 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 12,500 1,450 13.12 334 8.44 0.0488
2016-07-29 2016-06-30 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 11,050 300 2.79 308 29.41 0.0450
2016-05-12 2016-03-31 13F ANTERO MIDSTREAM PARTNERS UNT LTD PARTN 03673L103 10,750 10,750 238 0.0406
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.