Antero Midstream Corporation
US ˙ NYSE ˙ US03676B1026

SecurityAM / Antero Midstream Corporation
InstitutionSecurian Asset Management, Inc
Latest Disclosed Ownership24,409 shares
Latest Disclosed Value $ 556,525
Securian Asset Management, Inc reports 0.47% increase in ownership of AM / Antero Midstream Corporation

On May 1, 2026 - Securian Asset Management, Inc filed a 13F-HR form disclosing ownership of 24,409 shares of Antero Midstream Corporation (US:AM) valued at $556,525 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 24,296 shares of Antero Midstream Corporation. This represents a change in shares of 0.47% during the quarter. The current value of the position is $519,179 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)
2026-05-01 2026-03-31 13F ANTERO MIDSTREAM COM 03676B102 24,409 113 0.47 557 28.70 0.0220
2026-02-04 2025-12-31 13F ANTERO MIDSTREAM COM 03676B102 24,296 -789 -3.15 432 -11.29 0.0164
2025-10-23 2025-09-30 13F ANTERO MIDSTREAM COM 03676B102 25,085 -461 -1.80 488 0.62 0.0129
2025-07-30 2025-06-30 13F ANTERO MIDSTREAM COM 03676B102 25,546 175 0.69 484 6.14 0.0138
2025-05-01 2025-03-31 13F ANTERO MIDSTREAM COM 03676B102 25,371 -100 -0.39 457 18.75 0.0139
2025-02-10 2024-12-31 13F ANTERO MIDSTREAM COM 03676B102 25,471 -725 -2.77 384 -2.54 0.0112
2024-11-13 2024-09-30 13F ANTERO MIDSTREAM COM 03676B102 26,196 -1,055 -3.87 394 -1.75 0.0114
2024-07-15 2024-06-30 13F ANTERO MIDSTREAM COM 03676B102 27,251 -758 -2.71 402 2.04 0.0117
2024-04-26 2024-03-31 13F ANTERO MIDSTREAM COM 03676B102 28,009 -734 -2.55 394 9.17 0.0115
2024-02-08 2023-12-31 13F ANTERO MIDSTREAM COM 03676B102 28,743 -103 -0.36 360 4.35 0.0102
2023-10-30 2023-09-30 13F ANTERO MIDSTREAM COM 03676B102 28,846 -1,064 -3.56 346 -0.29 0.0103
2023-08-07 2023-06-30 13F ANTERO MIDSTREAM COM 03676B102 29,910 -594 -1.95 347 8.46 0.0089
2023-04-27 2023-03-31 13F ANTERO MIDSTREAM COM 03676B102 30,504 -275 -0.89 320 -3.92 0.0085
2023-02-03 2022-12-31 13F ANTERO MIDSTREAM COM 03676B102 30,779 196 0.64 332 0.0093
2022-10-28 2022-09-30 13F ANTERO MIDSTREAM COM 03676B102 30,583 924 3.12 0 0.0084
2022-08-04 2022-06-30 13F ANTERO MIDSTREAM COM 03676B102 29,659 525 1.80 0 0.0064
2022-05-03 2022-03-31 13F ANTERO MIDSTREAM COM 03676B102 29,134 117 0.40 0 0.0062
2022-02-10 2021-12-31 13F ANTERO MIDSTREAM COR COM 03676B102 29,017 -100 -0.34 0 0.0052
2021-11-08 2021-09-30 13F ANTERO MIDSTREAM COR COM 03676B102 29,117 2,794 10.61 0 0.0062
2021-08-10 2021-06-30 13F ANTERO MIDSTREAM COR COM 03676B102 26,323 -680 -2.52 0 0.0055
2021-05-10 2021-03-31 13F ANTERO MIDSTREAM COR COM 03676B102 27,003 -106 -0.39 0 0.0053
2021-02-08 2020-12-31 13F ANTERO MIDSTREAM COR COM 03676B102 27,109 -661 -2.38 0 -100.00 0.0047
2020-11-04 2020-09-30 13F Antero Midstream COMMON STOCK 03676B102 27,770 -702 -2.47 149 2.76 0.0036
2020-08-06 2020-06-30 13F Antero Midstream COMMON STOCK 03676B102 28,472 -2,020 -6.62 145 126.56 0.0037
2020-05-07 2020-03-31 13F Antero Midstream COMMON STOCK 03676B102 30,492 0 0.00 64 -72.29 0.0018
2020-02-04 2019-12-31 13F Antero Midstream COMMON STOCK 03676B102 30,492 1,479 5.10 231 7.44 0.0051
2019-11-12 2019-09-30 13F Antero Midstream COMMON STOCK 03676B102 29,013 29,013 215 0.0049
2016-02-10 2015-12-31 13F Antero Midstream Partners MLP 03673L103 0 0 0 0.0000
2016-11-08 2015-09-30 13F/A-1 Antero Midstream Partners MLP 03673L103 0 -39,600 -100.00 0 -100.00
2016-11-08 2015-06-30 13F/A-2 Antero Midstream Partners MLP 03673L103 39,600 -18,800 -32.19 1 0.00 0.0354
2015-08-10 2015-06-30 13F Antero Midstream Partners MLP 03673L103 39,600 1,134
2016-11-08 2015-03-31 13F/A-2 Antero Midstream Partners MLP 03673L103 58,400 15,800 37.09 1 0.00 0.0412
2015-04-27 2015-03-31 13F Antero Midstream Partners MLP 03673L103 58,400 1,413
2016-11-08 2014-12-31 13F/A-2 Antero Midstream Partners MLP 03673L103 42,600 42,600 1 0.0363
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.