Antero Resources Corporation
US ˙ NYSE ˙ US03674X1063

SecurityAR / Antero Resources Corporation
InstitutionXTX Topco Ltd
Latest Disclosed Ownership33,304 shares
Latest Disclosed Value $ 1,413,422
XTX Topco Ltd reports 81.32% increase in ownership of AR / Antero Resources Corporation

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 33,304 shares of Antero Resources Corporation (US:AR) valued at $1,413,422 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 18,368 shares of Antero Resources Corporation. This represents a change in shares of 81.32% during the quarter. The current value of the position is $1,235,578 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)
2026-05-15 2026-03-31 13F ANTERO RESOURCES COM 03674X106 33,304 14,936 81.32 1,413 123.58 0.0246
2026-02-17 2025-12-31 13F ANTERO RESOURCES COM 03674X106 18,368 -4,357 -19.17 633 -17.06 0.0166
2025-11-14 2025-09-30 13F ANTERO RESOURCES COM 03674X106 22,725 -76,490 -77.10 763 -80.93 0.0396
2025-08-12 2025-06-30 13F ANTERO RESOURCES COM 03674X106 99,215 83,352 525.45 3,996 523.40 0.1657
2025-05-08 2025-03-31 13F ANTERO RESOURCES COM 03674X106 15,863 15,863 642 0.0328
2024-11-14 2024-09-30 13F ANTERO RESOURCES COM 03674X106 0 -64,605 -100.00 0 -100.00
2024-08-12 2024-06-30 13F ANTERO RESOURCES COM 03674X106 64,605 48,866 310.48 2,108 362.28 0.1805
2024-05-13 2024-03-31 13F ANTERO RESOURCES COM 03674X106 15,739 15,739 456 0.0615
2023-05-12 2023-03-31 13F ANTERO RESOURCES COM 03674X106 0 -15,582 -100.00 0 -100.00
2023-02-14 2022-12-31 13F ANTERO RESOURCES COM 03674X106 15,582 -5,253 -25.21 483 -24.21 0.1025
2022-11-14 2022-09-30 13F ANTERO RESOURCES COM 03674X106 20,835 -4,488 -17.72 636 -18.04 0.1575
2022-08-15 2022-06-30 13F ANTERO RESOURCES COM 03674X106 25,323 25,323 776 0.3171
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.