Antero Resources Corporation
US ˙ NYSE ˙ US03674X1063

SecurityAR / Antero Resources Corporation
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership3,834,807 shares
Latest Disclosed Value $ 162,756,022
Neuberger Berman Group LLC reports 0.51% increase in ownership of AR / Antero Resources Corporation

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 3,834,807 shares of Antero Resources Corporation (US:AR) valued at $162,749,209 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,815,524 shares of Antero Resources Corporation. This represents a change in shares of 0.51% during the quarter. The current value of the position is $136,365,737 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 Common 03674X106 3,834,807 19,283 0.51 162,756 23.78 0.1239
2026-02-13 2025-12-31 13F ANTERO RESOURCES Common 03674X106 3,815,524 54,397 1.45 131,485 4.17 0.0979
2025-11-12 2025-09-30 13F ANTERO RESOURCES Common 03674X106 3,761,127 74,716 2.03 126,223 -15.00 0.0922
2025-08-25 2025-06-30 13F/A-1 ANTERO RESOURCES Common 03674X106 3,686,411 164,469 4.67 148,490 4.26 0.1143
2025-08-13 2025-06-30 13F ANTERO RESOURCES Common 03674X106 3,686,411 164,469 148,490 0.0591
2025-05-13 2025-03-31 13F ANTERO RESOURCES Common 03674X106 3,521,942 264,602 8.12 142,428 24.75 0.1193
2025-02-13 2024-12-31 13F ANTERO RESOURCES Common 03674X106 3,257,340 285,548 9.61 114,170 34.09 0.0906
2024-11-14 2024-09-30 13F ANTERO RESOURCES Common 03674X106 2,971,792 801,551 36.93 85,142 20.23 0.0664
2024-11-14 2024-06-30 13F/A-1 ANTERO RESOURCES Common 03674X106 2,170,241 -219,226 -9.17 70,815 2.19 0.0581
2024-08-13 2024-06-30 13F ANTERO RESOURCES Common 03674X106 2,170,241 -219,226 70,815 0.0581
2024-11-14 2024-03-31 13F/A-1 ANTERO RESOURCES Common 03674X106 2,389,467 -92,549 -3.73 69,295 23.10 0.0573
2024-05-13 2024-03-31 13F ANTERO RESOURCES Common 03674X106 2,389,467 -92,549 69,295 0.0573
2024-11-14 2023-12-31 13F/A-2 ANTERO RESOURCES Common 03674X106 2,482,016 54,390 2.24 56,292 -8.64 0.0491
2024-02-09 2023-12-31 13F ANTERO RESOURCES Common 03674X106 2,482,016 54,390 56,292 0.0491
2023-11-14 2023-09-30 13F ANTERO RESOURCES Common 03674X106 2,427,626 -172,866 -6.65 61,613 2.88 0.0561
2023-08-11 2023-06-30 13F ANTERO RESOURCES Common 03674X106 2,600,492 -13,658 -0.52 59,889 -0.78 0.0536
2023-05-12 2023-03-31 13F ANTERO RESOURCES Common 03674X106 2,614,150 149,649 6.07 60,361 -20.97 0.0560
2023-02-13 2022-12-31 13F ANTERO RESOURCES Common 03674X106 2,464,501 -230,938 -8.57 76,375 -7.19 0.0749
2022-11-15 2022-09-30 13F ANTERO RESOURCES Common 03674X106 2,695,439 59,010 2.24 82,292 1.84 0.0859
2022-08-15 2022-06-30 13F ANTERO RESOURCES Common 03674X106 2,636,429 61,400 2.38 80,807 2.79 0.0812
2022-05-23 2022-03-31 13F/A-1 ANTERO RESOURCES Common 03674X106 2,575,029 1,261,073 95.98 78,616 241.93 0.0666
2022-05-13 2022-03-31 13F ANTERO RESOURCES Common 03674X106 2,575,029 1,261,073 78,580 0.0350
2022-02-11 2021-12-31 13F ANTERO RESOURCES Common 03674X106 1,313,956 292,690 28.66 22,992 19.69 0.0180
2021-11-12 2021-09-30 13F ANTERO RESOURCES Common 03674X106 1,021,266 331,980 48.16 19,210 85.42 0.0168
2021-08-13 2021-06-30 13F ANTERO RESOURCES Common 03674X106 689,286 0 0.00 10,360 47.35 0.0090
2021-05-13 2021-03-31 13F ANTERO RESOURCES Common 03674X106 689,286 594,120 624.30 7,031 1,254.72 0.0067
2021-02-10 2020-12-31 13F ANTERO RESOURCES Common 03674X106 95,166 -41,666 -30.45 519 38.03 0.0005
2020-11-12 2020-09-30 13F ANTERO RESOURCES Common 03674X106 136,832 0 0.00 376 8.05 0.0004
2020-08-13 2020-06-30 13F ANTERO RESOURCES Common 03674X106 136,832 0 0.00 348 255.10 0.0004
2020-05-14 2020-03-31 13F ANTERO RESOURCES Common 03674X106 136,832 -245 -0.18 98 -74.94 0.0001
2020-02-12 2019-12-31 13F ANTERO RESOURCES Common 03674X106 137,077 57,026 71.24 391 61.57 0.0005
2019-11-13 2019-09-30 13F ANTERO RESOURCES Common 03674X106 80,051 -36,692 -31.43 242 -62.48 0.0003
2019-08-13 2019-06-30 13F ANTERO RESOURCES Common 03674X106 116,743 -201,418 -63.31 645 -77.04 0.0008
2019-05-13 2019-03-31 13F ANTERO RESOURCES Common 03674X106 318,161 -5,204 -1.61 2,809 -7.51 0.0034
2019-02-12 2018-12-31 13F ANTERO RESOURCES Common 03674X106 323,365 -397,281 -55.13 3,037 -76.20 0.0042
2018-11-16 2018-09-30 13F/A-1 ANTERO RESOURCES Common 03674X106 720,646 -61,732 -7.89 12,763 -23.23 0.0145
2018-11-13 2018-09-30 13F ANTERO RESOURCES Common 03674X106 720,646 -61,732 12,763
2018-08-13 2018-06-30 13F ANTERO RESOURCES Common 03674X106 782,378 -505,337 -39.24 16,624 -34.96 0.0184
2018-05-08 2018-03-31 13F ANTERO RESOURCES Common 03674X106 1,287,715 -644,885 -33.37 25,561 -30.39 0.0292
2018-02-14 2017-12-31 13F ANTERO RESOURCES Common 03674X106 1,932,600 396,787 25.84 36,719 20.15 0.0422
2017-11-15 2017-09-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 1,535,813 442,397 40.46 30,562 29.34 0.0382
2017-08-08 2017-06-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 1,093,416 313,014 40.11 23,629 32.74 0.0303
2017-05-10 2017-03-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 780,402 425,853 120.11 17,801 112.27 0.0230
2017-02-06 2016-12-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 354,549 64,120 22.08 8,386 7.14 0.0113
2016-11-02 2016-09-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 290,429 99,597 52.19 7,827 57.87 0.0106
2016-08-05 2016-06-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 190,832 10,939 6.08 4,958 10.82 0.0068
2016-05-06 2016-03-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 179,893 -165,114 -47.86 4,474 -40.51 0.0062
2016-01-28 2015-12-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 345,007 -204,277 -37.19 7,521 -35.29 0.0098
2015-11-10 2015-09-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 549,284 -3,114,476 -85.01 11,623 -90.76 0.0150
2015-07-31 2015-06-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 3,663,760 -1,198,598 -24.65 125,814 -26.74 0.1399
2015-05-06 2015-03-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 4,862,358 4,862,358 0.00 171,739 0.1834
2015-02-05 2014-12-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 0 -6,160,767 -100.00 0 -100.00
2014-11-04 2014-09-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 6,160,767 -100,801 -1.61 338,165 -17.71 0.3470
2014-08-05 2014-06-30 13F ANTERO RESOURCES COMMON STOCK 03674X106 6,261,568 769,573 14.01 410,947 19.53 0.4012
2014-05-05 2014-03-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 5,491,995 1,660,518 43.34 343,798 41.44 0.3497
2014-02-11 2013-12-31 13F ANTERO RESOURCES COMMON STOCK 03674X106 3,831,477 3,831,477 243,069 0.2499
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.