Antero Resources Corporation
US ˙ NYSE ˙ US03674X1063

SecurityAR / Antero Resources Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership10,239,070 shares
Latest Disclosed Value $ 434,596,893
Dimensional Fund Advisors Lp reports 12.69% increase in ownership of AR / Antero Resources Corporation

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 10,239,070 shares of Antero Resources Corporation (US:AR) valued at $434,546,131 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,085,648 shares of Antero Resources Corporation. This represents a change in shares of 12.69% during the quarter. The current value of the position is $364,101,329 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)
2026-05-07 2026-03-31 13F ANTERO RESOURCES COM 03674X106 10,239,070 1,153,422 12.69 434,597 38.80 0.0903
2026-02-12 2025-12-31 13F ANTERO RESOURCES COM 03674X106 9,085,648 1,115,258 13.99 313,106 17.06 0.0657
2025-11-12 2025-09-30 13F ANTERO RESOURCES COM 03674X106 7,970,390 1,922,977 31.80 267,485 9.80 0.0574
2025-08-12 2025-06-30 13F ANTERO RESOURCES COM 03674X106 6,047,413 -2,211,990 -26.78 243,617 -27.06 0.0564
2025-05-13 2025-03-31 13F ANTERO RESOURCES COM 03674X106 8,259,403 -3,569,860 -30.18 333,988 -19.45 0.0830
2025-02-13 2024-12-31 13F ANTERO RESOURCES COM 03674X106 11,829,263 1,274,760 12.08 414,628 37.12 0.0996
2024-11-07 2024-09-30 13F ANTERO RESOURCES COM 03674X106 10,554,503 2,039,659 23.95 302,387 8.83 0.0733
2024-08-09 2024-06-30 13F ANTERO RESOURCES COM 03674X106 8,514,844 -99,960 -1.16 277,840 11.21 0.0726
2024-05-10 2024-03-31 13F ANTERO RESOURCES COM 03674X106 8,614,804 2,955,771 52.23 249,829 94.65 0.0676
2024-02-07 2023-12-31 13F ANTERO RESOURCES COM 03674X106 5,659,033 1,253,510 28.45 128,352 14.79 0.0375
2023-11-09 2023-09-30 13F ANTERO RESOURCES COM 03674X106 4,405,523 252,563 6.08 111,816 16.91 0.0367
2023-08-09 2023-06-30 13F ANTERO RESOURCES COM 03674X106 4,152,960 -526,228 -11.25 95,642 -11.47 0.0305
2023-05-12 2023-03-31 13F ANTERO RESOURCES COM 03674X106 4,679,188 -79,773 -1.68 108,035 73,392.52 0.0364
2023-02-09 2022-12-31 13F ANTERO RESOURCES COM 03674X106 4,758,961 -4,431,749 -48.22 147 -99.95 0.0436
2022-11-10 2022-09-30 13F ANTERO RESOURCES COM 03674X106 9,190,710 178,349 1.98 280,591 1.57 0.1077
2022-08-12 2022-06-30 13F ANTERO RESOURCES COM 03674X106 9,012,361 -2,214,433 -19.72 276,262 -19.40 0.0991
2022-05-13 2022-03-31 13F ANTERO RESOURCES COM 03674X106 11,226,794 -851,546 -7.05 342,754 62.16 0.1056
2022-02-09 2021-12-31 13F ANTERO RESOURCES COM 03674X106 12,078,340 -159,160 -1.30 211,374 -8.17 0.0639
2021-11-12 2021-09-30 13F ANTERO RESOURCES COM 03674X106 12,237,500 831,519 7.29 230,186 34.28 0.0741
2021-08-12 2021-06-30 13F ANTERO RESOURCES COM 03674X106 11,405,981 2,190,243 23.77 171,427 82.37 0.0543
2021-05-14 2021-03-31 13F ANTERO RESOURCES COM 03674X106 9,215,738 2,884,853 45.57 93,997 172.42 0.0311
2021-03-08 2020-12-31 13F/A-2 ANTERO RESOURCES COM 03674X106 6,330,885 655,752 11.55 34,504 121.07 0.0125
2021-02-11 2020-12-31 13F ANTERO RESOURCES COM 03674X106 6,330,885 655,752 34,504 12,461.0108
2020-11-12 2020-09-30 13F ANTERO RESOURCES COM 03674X106 5,675,133 1,495,873 35.79 15,608 47.04 0.0066
2020-08-13 2020-06-30 13F ANTERO RESOURCES COM 03674X106 4,179,260 -5,987,342 -58.89 10,615 46.45 0.0047
2020-05-14 2020-03-31 13F ANTERO RESOURCES COM 03674X106 10,166,602 -335,304 -3.19 7,248 -75.78 0.0038
2020-02-14 2019-12-31 13F ANTERO RES COM 03674X106 10,501,906 1,118,218 11.92 29,929 5.60 0.0109
2019-11-12 2019-09-30 13F ANTERO RES COM 03674X106 9,383,688 1,068,745 12.85 28,343 -38.36 0.0110
2019-08-13 2019-06-30 13F ANTERO RES COM 03674X106 8,314,943 562,300 7.25 45,980 -32.83 0.0179
2019-08-12 2019-03-31 13F/A-2 ANTERO RES COM 03674X106 7,752,643 1,461,459 23.23 68,454 15.88 0.0273
2019-05-10 2019-03-31 13F ANTERO RES COM 03674X106 7,752,643 1,461,459 68,454
2019-02-26 2018-12-31 13F/A-1 ANTERO RES COM 03674X106 6,291,184 169,369 2.77 59,072 -45.51 0.0268
2019-02-13 2018-12-31 13F ANTERO RES COM 03674X106 6,291,184 169,369 59,072
2018-11-13 2018-09-30 13F ANTERO RES COM 03674X106 6,121,815 -46,407 -0.75 108,418 -17.67 0.0413
2018-08-10 2018-06-30 13F ANTERO RES COM 03674X106 6,168,222 668,836 12.16 131,691 20.64 0.0525
2018-05-11 2018-03-31 13F ANTERO RES COM 03674X106 5,499,386 741,671 15.59 109,163 20.74 0.0455
2018-02-12 2017-12-31 13F ANTERO RES COM 03674X106 4,757,715 1,432,255 43.07 90,415 36.63 0.0375
2017-11-13 2017-09-30 13F ANTERO RES COM 03674X106 3,325,460 1,254,460 60.57 66,176 47.87 0.0289
2017-08-11 2017-06-30 13F ANTERO RES COM 03674X106 2,071,000 1,011,429 95.46 44,753 85.17 0.0207
2017-05-12 2017-03-31 13F ANTERO RES COM 03674X106 1,059,571 153,118 16.89 24,169 12.73 0.0116
2017-02-09 2016-12-31 13F ANTERO RES COM 03674X106 906,453 46,056 5.35 21,440 -7.51 0.0107
2016-11-10 2016-09-30 13F ANTERO RES COM 03674X106 860,397 312,311 56.98 23,182 62.76 0.0125
2016-08-09 2016-06-30 13F ANTERO RES COM 03674X106 548,086 14,984 2.81 14,243 7.43 0.0082
2016-05-13 2016-03-31 13F ANTERO RES COM 03674X106 533,102 184,401 52.88 13,258 74.45 0.0079
2016-02-10 2015-12-31 13F ANTERO RES COM 03674X106 348,701 23,134 7.11 7,600 10.35 0.0047
2015-11-13 2015-09-30 13F ANTERO RES COM 03674X106 325,567 136,311 72.02 6,887 5.97 0.0045
2015-08-14 2015-06-30 13F ANTERO RES COM 03674X106 189,256 189,256 6,499 0.0040
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.