Antero Resources Corporation
US ˙ NYSE ˙ US03674X1063

SecurityAR / Antero Resources Corporation
InstitutionS&co Inc
Latest Disclosed Ownership487,604 shares
Latest Disclosed Value $ 20,693
S&co Inc reports 1.71% increase in ownership of AR / Antero Resources Corporation

On May 7, 2026 - S&co Inc filed a 13F-HR form disclosing ownership of 487,604 shares of Antero Resources Corporation (US:AR) valued at $20,693,914 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 479,399 shares of Antero Resources Corporation. This represents a change in shares of 1.71% during the quarter. The current value of the position is $18,090,108 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 487,604 8,205 1.71 21 25.00 1.2838
2026-02-05 2025-12-31 13F ANTERO RESOURCES COM 03674X106 479,399 15,001 3.23 17 6.67 1.0261
2025-11-06 2025-09-30 13F ANTERO RESOURCES COM 03674X106 464,398 168,685 57.04 16 36.36 0.9541
2025-08-07 2025-06-30 13F ANTERO RESOURCES COM 03674X106 295,713 1,925 0.66 12 0.00 0.7637
2025-05-08 2025-03-31 13F ANTERO RESOURCES COM 03674X106 293,788 10,205 3.60 12 22.22 0.7973
2025-02-07 2024-12-31 13F ANTERO RESOURCES COM 03674X106 283,583 5,355 1.92 10 28.57 0.6745
2024-11-07 2024-09-30 13F ANTERO RESOURCES COM 03674X106 278,228 65,060 30.52 8 16.67 0.5208
2024-08-08 2024-06-30 13F ANTERO RESOURCES COM 03674X106 213,168 61,590 40.63 7 50.00 0.4851
2024-05-09 2024-03-31 13F ANTERO RESOURCES COM 03674X106 151,578 137,538 979.62 4 0.3095
2024-02-12 2023-12-31 13F ANTERO RESOURCES COM 03674X106 14,040 0 0.00 0 0.0244
2023-11-09 2023-09-30 13F ANTERO RESOURCES COM 03674X106 14,040 0 0.00 0 0.0292
2023-08-08 2023-06-30 13F ANTERO RESOURCES COM 03674X106 14,040 2,480 21.45 0 0.0260
2023-05-09 2023-03-31 13F ANTERO RESOURCES COM 03674X106 11,560 11,560 0 0.0226
2019-07-23 2019-06-30 13F ANTERO RESOURCES COM 03674X106 0 -11,248 -100.00 0 -100.00
2019-04-24 2019-03-31 13F ANTERO RESOURCES COM 03674X106 11,248 11,248 99 0.0110
2018-11-05 2018-09-30 13F ANTERO RESOURCES COM 03674X106 0 -10,061 -100.00 0 -100.00
2018-07-27 2018-06-30 13F ANTERO RESOURCES COM 03674X106 10,061 0 0.00 215 7.50 0.0259
2018-05-02 2018-03-31 13F ANTERO RESOURCES COM 03674X106 10,061 0 0.00 200 4.71 0.0252
2018-01-22 2017-12-31 13F ANTERO RESOURCES COM 03674X106 10,061 -11,235 -52.76 191 -54.95 0.0237
2017-11-02 2017-09-30 13F ANTERO RESOURCES COM 03674X106 21,296 0 0.00 424 -7.83 0.0542
2017-07-28 2017-06-30 13F ANTERO RESOURCES COM 03674X106 21,296 -4,653 -17.93 460 -22.30 0.0608
2017-04-07 2017-03-31 13F ANTERO RESOURCES COM 03674X106 25,949 1,421 5.79 592 2.07 0.0806
2017-01-27 2016-12-31 13F/A-1 ANTERO RESOURCES COM 03674X106 24,528 12,254 99.84 580 75.23 0.0839
2017-01-25 2016-12-31 13F ANTERO RESOURCES COM 03674X106 21,528 509
2016-10-28 2016-09-30 13F ANTERO RESOURCES COM 03674X106 12,274 12,274 331 0.0497
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.