Antero Resources Corporation
US ˙ NYSE ˙ US03674X1063

SecurityAR / Antero Resources Corporation
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership404,998 shares
Latest Disclosed Value $ 13,956,231
Alliancebernstein L.p. reports 13.89% increase in ownership of AR / Antero Resources Corporation

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 404,998 shares of Antero Resources Corporation (US:AR) valued at $17,188,115 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 355,590 shares of Antero Resources Corporation. This represents a change in shares of 13.89% during the quarter. The current value of the position is $15,025,426 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 404,998 49,408 13.89 13,956 13.90 0.0038
2026-02-17 2025-12-31 13F ANTERO RESOURCES COM 03674X106 355,590 6,701 1.92 12,254 4.65 0.0039
2025-11-14 2025-09-30 13F ANTERO RESOURCES COM 03674X106 348,889 -3,702 -1.05 11,709 -17.56 0.0037
2025-08-14 2025-06-30 13F ANTERO RESOURCES COM 03674X106 352,591 -5,956 -1.66 14,202 -2.05 0.0046
2025-05-15 2025-03-31 13F ANTERO RESOURCES COM 03674X106 358,547 -19,105 -5.06 14,500 9.54 0.0052
2025-02-12 2024-12-31 13F ANTERO RESOURCES COM 03674X106 377,652 -5,590 -1.46 13,237 20.56 0.0045
2024-11-14 2024-09-30 13F ANTERO RESOURCES COM 03674X106 383,242 -512,585 -57.22 10,980 -62.44 0.0037
2024-08-14 2024-06-30 13F ANTERO RESOURCES COM 03674X106 895,827 -110,056 -10.94 29,231 0.21 0.0102
2024-05-14 2024-03-31 13F ANTERO RESOURCES COM 03674X106 1,005,883 446,969 79.97 29,171 130.12 0.0103
2024-02-14 2023-12-31 13F ANTERO RESOURCES COM 03674X106 558,914 -128,262 -18.67 12,676 -27.32 0.0049
2023-11-14 2023-09-30 13F ANTERO RESOURCES COM 03674X106 687,176 -28,159 -3.94 17,441 5.86 0.0074
2023-08-15 2023-06-30 13F ANTERO RESOURCES COM 03674X106 715,335 76,286 11.94 16,474 11.65 0.0067
2023-05-15 2023-03-31 13F ANTERO RESOURCES COM 03674X106 639,049 144,631 29.25 14,756 -3.70 0.0063
2023-02-15 2022-12-31 13F ANTERO RESOURCES COM 03674X106 494,418 286,195 137.45 15,322 141.03 0.0069
2022-11-15 2022-09-30 13F ANTERO RESOURCES COM 03674X106 208,223 -35,571 -14.59 6,357 -14.92 0.0031
2022-08-15 2022-06-30 13F ANTERO RESOURCES COM 03674X106 243,794 -280,781 -53.53 7,472 -53.34 0.0034
2022-05-13 2022-03-31 13F ANTERO RESOURCES COM 03674X106 524,575 166,262 46.40 16,015 155.42 0.0062
2022-02-14 2021-12-31 13F ANTERO RESOURCES COM 03674X106 358,313 -131,798 -26.89 6,270 -31.99 0.0022
2021-11-10 2021-09-30 13F ANTERO RESOURCES COM 03674X106 490,111 25,000 5.38 9,219 31.87 0.0036
2021-07-30 2021-06-30 13F ANTERO RESOURCES COM 03674X106 465,111 93,900 25.30 6,991 84.65 0.0028
2021-05-06 2021-03-31 13F ANTERO RESOURCES COM 03674X106 371,211 2,100 0.57 3,786 88.17 0.0017
2021-02-08 2020-12-31 13F ANTERO RESOURCES COM 03674X106 369,111 -7,050 -1.87 2,012 94.58 0.0009
2020-11-12 2020-09-30 13F ANTERO RESOURCES COM 03674X106 376,161 20,500 5.76 1,034 14.51 0.0006
2020-08-13 2020-06-30 13F ANTERO RESOURCES COM 03674X106 355,661 216,619 155.79 903 812.12 0.0005
2020-05-14 2020-03-31 13F ANTERO RESOURCES COM 03674X106 139,042 -2,100 -1.49 99 -75.37 0.0001
2020-02-18 2019-12-31 13F ANTERO RES COM 03674X106 141,142 -19,240 -12.00 402 -16.94 0.0002
2019-11-14 2019-09-30 13F ANTERO RES COM 03674X106 160,382 30,800 23.77 484 -32.50 0.0003
2019-08-14 2019-06-30 13F ANTERO RES COM 03674X106 129,582 700 0.54 717 -36.99 0.0004
2019-05-14 2019-03-31 13F ANTERO RES COM 03674X106 128,882 -16,085 -11.10 1,138 -16.39 0.0007
2019-02-13 2018-12-31 13F ANTERO RES COM 03674X106 144,967 6,559 4.74 1,361 -44.47 0.0010
2018-11-08 2018-09-30 13F ANTERO RES COM 03674X106 138,408 -2,455 -1.74 2,451 -18.49 0.0016
2018-08-13 2018-06-30 13F ANTERO RES COM 03674X106 140,863 5,118 3.77 3,007 11.58 0.0021
2018-05-14 2018-03-31 13F ANTERO RES COM 03674X106 135,745 84 0.06 2,695 4.54 0.0019
2018-02-13 2017-12-31 13F ANTERO RES COM 03674X106 135,661 -1,033 -0.76 2,578 -5.22 0.0018
2017-11-13 2017-09-30 13F ANTERO RES COM 03674X106 136,694 -745 -0.54 2,720 -8.42 0.0020
2017-08-10 2017-06-30 13F ANTERO RES COM 03674X106 137,439 35,154 34.37 2,970 27.30 0.0023
2017-05-11 2017-03-31 13F ANTERO RES COM 03674X106 102,285 -5,683 -5.26 2,333 -8.62 0.0019
2017-02-13 2016-12-31 13F ANTERO RES COM 03674X106 107,968 -3,500 -3.14 2,553 -15.01 0.0021
2016-11-10 2016-09-30 13F ANTERO RES COM 03674X106 111,468 4,485 4.19 3,004 8.10 0.0025
2016-08-11 2016-06-30 13F ANTERO RES COM 03674X106 106,983 61,784 136.69 2,779 147.24 0.0024
2016-05-13 2016-03-31 13F ANTERO RES COM 03674X106 45,199 -672 -1.46 1,124 12.40 0.0010
2016-02-16 2015-12-31 13F/A-1 ANTERO RES COM 03674X106 45,871 -14,882 -24.50 1,000 -22.24 0.0009
2016-02-12 2015-12-31 13F ANTERO RES COM 03674X106 45,871 971
2015-11-13 2015-09-30 13F ANTERO RES COM 03674X106 60,753 -3,562 -5.54 1,286 -41.78 0.0011
2015-08-14 2015-06-30 13F ANTERO RES COM 03674X106 64,315 -56,312 -46.68 2,209 -48.16 0.0018
2015-05-13 2015-03-31 13F ANTERO RESOURCES COM 03674X106 120,627 -1,125 -0.92 4,261 -13.76 0.0035
2015-02-13 2014-12-31 13F ANTERO RESOURCES COM 03674X106 121,752 1,777 1.48 4,941 -24.97 0.0041
2014-11-13 2014-09-30 13F ANTERO RESOURCES COM 03674X106 119,975 -17 -0.01 6,585 -16.38 0.0055
2014-08-13 2014-06-30 13F ANTERO RESOURCES COM 03674X106 119,992 -976,159 -89.05 7,875 -88.52 0.0066
2014-05-13 2014-03-31 13F ANTERO RESOURCES COM 03674X106 1,096,151 283,800 34.94 68,619 33.15 0.0593
2014-02-13 2013-12-31 13F ANTERO RESOURCES COM 03674X106 812,351 812,351 51,536 0.0461
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.