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US ˙ NYSE ˙ US03674X1063

SecurityAR / Antero Resources Corporation
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership493,800 shares
Latest Disclosed Value $ 20,956,872
Renaissance Technologies Llc ownership in AR / Antero Resources Corporation

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 493,800 shares of Antero Resources Corporation (US:AR) valued at $20,956,872 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of Antero Resources Corporation. The current value of the position is $18,319,980 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)
2026-05-14 2026-03-31 13F ANTERO RESOURCES COM 03674X106 493,800 493,800 20,957 0.0328
2025-11-13 2025-09-30 13F ANTERO RESOURCES COM 03674X106 0 -1,152,500 -100.00 0 -100.00
2025-08-13 2025-06-30 13F ANTERO RESOURCES COM 03674X106 1,152,500 42,300 3.81 46,423 3.40 0.0618
2025-05-14 2025-03-31 13F ANTERO RESOURCES COM 03674X106 1,110,200 769,235 225.61 44,896 275.70 0.0680
2025-02-13 2024-12-31 13F ANTERO RESOURCES COM 03674X106 340,965 -1,141,242 -77.00 11,951 -71.86 0.0177
2024-11-13 2024-09-30 13F ANTERO RESOURCES COM 03674X106 1,482,207 -1,889,232 -56.04 42,465 -61.40 0.0639
2024-08-09 2024-06-30 13F ANTERO RESOURCES COM 03674X106 3,371,439 -823,700 -19.63 110,010 90,817.36 0.1866
2024-05-13 2024-03-31 13F ANTERO RESOURCES COM 03674X106 4,195,139 469,200 12.59 122 44.05 0.1912
2024-02-13 2023-12-31 13F ANTERO RESOURCES COM 03674X106 3,725,939 -755,236 -16.85 85 -25.66 0.1308
2023-11-14 2023-09-30 13F ANTERO RESOURCES COM 03674X106 4,481,175 -68,564 -1.51 114 8.65 0.1939
2023-08-11 2023-06-30 13F ANTERO RESOURCES COM 03674X106 4,549,739 -743,500 -14.05 105 -14.75 0.1510
2023-05-12 2023-03-31 13F ANTERO RESOURCES COM 03674X106 5,293,239 2,414,100 83.85 122 37.08 0.1622
2023-02-13 2022-12-31 13F ANTERO RESOURCES COM 03674X106 2,879,139 597,239 26.17 89 -99.87 0.1221
2022-11-14 2022-09-30 13F ANTERO RESOURCES COM 03674X106 2,281,900 -1,302,600 -36.34 69,666 -36.59 0.0986
2022-08-12 2022-06-30 13F ANTERO RESOURCES COM 03674X106 3,584,500 1,134,200 46.29 109,865 46.86 0.1301
2022-05-13 2022-03-31 13F ANTERO RESOURCES COM 03674X106 2,450,300 1,782,100 266.70 74,808 539.71 0.0878
2022-02-11 2021-12-31 13F ANTERO RESOURCES COM 03674X106 668,200 -836,810 -55.60 11,694 -58.69 0.0145
2021-11-12 2021-09-30 13F ANTERO RESOURCES COM 03674X106 1,505,010 -1,352,590 -47.33 28,309 -34.09 0.0366
2021-08-13 2021-06-30 13F ANTERO RESOURCES COM 03674X106 2,857,600 598,300 26.48 42,950 86.37 0.0536
2021-05-13 2021-03-31 13F ANTERO RESOURCES COM 03674X106 2,259,300 2,259,300 23,045 0.0287
2020-08-13 2020-06-30 13F ANTERO RESOURCES COM 03674X106 0 -241,100 -100.00 0 -100.00
2020-05-14 2020-03-31 13F ANTERO RESOURCES COM 03674X106 241,100 -3,947,600 -94.24 172 -98.56 0.0002
2020-02-13 2019-12-31 13F ANTERO RES COM 03674X106 4,188,700 -228,097 -5.16 11,938 -10.50 0.0092
2019-11-13 2019-09-30 13F ANTERO RES COM 03674X106 4,416,797 -1,895,404 -30.03 13,339 -61.79 0.0113
2019-08-12 2019-06-30 13F ANTERO RES COM 03674X106 6,312,201 5,132,465 435.05 34,906 235.09 0.0307
2019-05-14 2019-03-31 13F ANTERO RES COM 03674X106 1,179,736 1,179,736 10,417 0.0095
2018-05-14 2018-03-31 13F ANTERO RES COM 03674X106 0 -1,010,300 -100.00 0 -100.00
2018-02-13 2017-12-31 13F ANTERO RES COM 03674X106 1,010,300 276,300 37.64 19,196 31.42 0.0212
2017-11-13 2017-09-30 13F ANTERO RES COM 03674X106 734,000 734,000 14,607 0.0172
2017-05-12 2017-03-31 13F ANTERO RES COM 03674X106 0 -695,800 -100.00 0 -100.00
2017-02-13 2016-12-31 13F ANTERO RES COM 03674X106 695,800 -209,300 -23.12 16,456 -32.54 0.0260
2016-11-14 2016-09-30 13F ANTERO RES COM 03674X106 905,100 890,300 6,015.54 24,392 6,235.58 0.0431
2016-08-12 2016-06-30 13F ANTERO RES COM 03674X106 14,800 14,800 0.00 385 0.0007
2016-02-11 2015-12-31 13F ANTERO RES COM 03674X106 0 -276,804 -100.00 0 -100.00
2015-11-12 2015-09-30 13F ANTERO RES COM 03674X106 276,804 13,304 5.05 5,857 -35.27 0.0140
2015-08-14 2015-06-30 13F ANTERO RES COM 03674X106 263,500 -353,100 -57.27 9,049 -58.45 0.0206
2015-05-13 2015-03-31 13F ANTERO RES COM 03674X106 616,600 565,100 1,097.28 21,778 942.01 0.0464
2015-02-13 2014-12-31 13F ANTERO RES COM 03674X106 51,500 51,500 2,090 0.0050
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.