Matador Resources Company
US ˙ NYSE ˙ US5764852050

SecurityMTDR / Matador Resources Company
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership10,529 shares
Latest Disclosed Value $ 665,222
Guggenheim Capital Llc reports 60.19% increase in ownership of MTDR / Matador Resources Company

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 10,529 shares of Matador Resources Company (US:MTDR) valued at $665,222 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,573 shares of Matador Resources Company. This represents a change in shares of 60.19% during the quarter. The current value of the position is $564,039 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)
2026-05-15 2026-03-31 13F MATADOR RES COM 576485205 10,529 3,956 60.19 665 139.21 0.0026
2026-02-17 2025-12-31 13F MATADOR RES COM 576485205 6,573 1,798 37.65 279 29.91 0.0020
2025-11-13 2025-09-30 13F MATADOR RES COM 576485205 4,775 161 3.49 215 -2.73 0.0016
2025-08-13 2025-06-30 13F MATADOR RES COM 576485205 4,614 -390 -7.79 220 -13.73 0.0017
2025-05-14 2025-03-31 13F MATADOR RES COM 576485205 5,004 387 8.38 256 -1.54 0.0023
2025-02-13 2024-12-31 13F MATADOR RES COM 576485205 4,617 -17,599 -79.22 260 -76.39 0.0021
2024-11-13 2024-09-30 13F MATADOR RES COM 576485205 22,216 5,509 32.97 1,098 10.25 0.0077
2024-08-14 2024-06-30 13F MATADOR RES COM 576485205 16,707 -28,359 -62.93 996 -66.93 0.0071
2024-05-14 2024-03-31 13F MATADOR RES COM 576485205 45,066 23,066 104.85 3,009 140.72 0.0212
2024-02-14 2023-12-31 13F MATADOR RES COM 576485205 22,000 -8,686 -28.31 1,251 -31.51 0.0095
2023-11-14 2023-09-30 13F MATADOR RES COM 576485205 30,686 -7,535 -19.71 1,825 -8.70 0.0157
2023-08-11 2023-06-30 13F MATADOR RES COM 576485205 38,221 476 1.26 2,000 11.18 0.0157
2023-05-11 2023-03-31 13F MATADOR RES COM 576485205 37,745 -5,886 -13.49 1,799 -27.99 0.0151
2023-02-14 2022-12-31 13F MATADOR RES COM 576485205 43,631 8,531 24.30 2,497 45.43 0.0219
2022-11-14 2022-09-30 13F MATADOR RES COM 576485205 35,100 -9,114 -20.61 1,717 -16.65 0.0157
2022-08-15 2022-06-30 13F MATADOR RES COM 576485205 44,214 16,811 61.35 2,060 41.87 0.0163
2022-05-16 2022-03-31 13F MATADOR RES COM 576485205 27,403 3,243 13.42 1,452 62.78 0.0087
2022-02-14 2021-12-31 13F MATADOR RES COM 576485205 24,160 5,937 32.58 892 28.72 0.0047
2021-11-15 2021-09-30 13F MATADOR RES COM 576485205 18,223 -6,843 -27.30 693 -23.26 0.0042
2021-08-13 2021-06-30 13F MATADOR RES COM 576485205 25,066 10,420 71.15 903 163.27 0.0053
2021-05-13 2021-03-31 13F MATADOR RES COM 576485205 14,646 -4,919 -25.14 343 45.34 0.0023
2021-02-16 2020-12-31 13F MATADOR RES COM 576485205 19,565 -6,195 -24.05 236 10.80 0.0015
2020-11-13 2020-09-30 13F MATADOR RES COM 576485205 25,760 -12,736 -33.08 213 -34.86 0.0015
2020-08-14 2020-06-30 13F MATADOR RES COM 576485205 38,496 -67,677 -63.74 327 23.86 0.0025
2020-06-02 2020-03-31 13F MATADOR RES COM 576485205 106,173 -7,726 -6.78 264 -87.10 0.0027
2020-02-20 2019-12-31 13F/A-1 MATADOR RES COM 576485205 113,899 98,614 645.17 2,046 708.70 0.0154
2020-02-14 2019-12-31 13F MATADOR RES COM 576485205 113,899 98,614 2,046 12,126.2330
2020-02-20 2019-09-30 13F/A-1 MATADOR RES COM 576485205 15,285 -3,545 -18.83 253 -32.53 0.0020
2019-11-14 2019-09-30 13F MATADOR RES COM 576485205 15,285 -3,545 253 1,854.0582
2019-08-14 2019-06-30 13F MATADOR RES COM 576485205 18,830 630 3.46 375 6.53 0.0031
2019-05-15 2019-03-31 13F MATADOR RES COM 576485205 18,200 4,144 29.48 352 61.47 0.0029
2019-02-14 2018-12-31 13F MATADOR RES COM 576485205 14,056 -10,033 -41.65 218 -72.61 0.0018
2018-11-14 2018-09-30 13F MATADOR RES COM 576485205 24,089 3,847 19.01 796 30.71 0.0052
2018-08-14 2018-06-30 13F MATADOR RES COM 576485205 20,242 -3,421 -14.46 609 -14.10 0.0041
2018-05-15 2018-03-31 13F MATADOR RES COM 576485205 23,663 515 2.22 709 -1.53 0.0017
2018-02-14 2017-12-31 13F MATADOR RES COM 576485205 23,148 -4,190 -15.33 720 -2.83 0.0017
2017-11-14 2017-09-30 13F MATADOR RES COM 576485205 27,338 816 3.08 741 30.69 0.0017
2017-08-14 2017-06-30 13F MATADOR RES COM 576485205 26,522 11,794 80.08 567 61.54 0.0015
2017-05-15 2017-03-31 13F MATADOR RES COM 576485205 14,728 -7,818 -34.68 351 -39.59 0.0010
2017-02-14 2016-12-31 13F MATADOR RES COM 576485205 22,546 4,454 24.62 581 32.05 0.0017
2016-11-14 2016-09-30 13F MATADOR RES COM 576485205 18,092 -2,864 -13.67 440 6.02 0.0014
2016-08-15 2016-06-30 13F MATADOR RES COM 576485205 20,956 4,986 31.22 415 36.96 0.0013
2016-05-16 2016-03-31 13F MATADOR RES COM 576485205 15,970 -1,371 -7.91 303 -11.66 0.0010
2016-02-16 2015-12-31 13F MATADOR RES COM 576485205 17,341 2,837 19.56 343 13.95 0.0010
2015-11-16 2015-09-30 13F MATADOR RES COM 576485205 14,504 -3,033 -17.29 301 -31.28 0.0009
2015-08-14 2015-06-30 13F MATADOR RES COM 576485205 17,537 17,537 0.00 438 0.0011
2015-05-15 2015-03-31 13F MATADOR RES COM 576485205 0 -16,291 -100.00 0 -100.00
2015-02-17 2014-12-31 13F MATADOR RES COM 576485205 16,291 -87,774 -84.35 329 -87.76 0.0008
2014-11-14 2014-09-30 13F MATADOR RES COM 576485205 104,065 51,037 96.25 2,689 73.26 0.0065
2014-08-14 2014-06-30 13F MATADOR RES COM 576485205 53,028 14,883 39.02 1,552 66.17 0.0039
2014-05-16 2014-03-31 13F MATADOR RES COM 576485205 38,145 -11,331 -22.90 934 1.30 0.0027
2014-02-14 2013-12-31 13F MATADOR RES COM 576485205 49,476 8,107 19.60 922 36.39 0.0028
2013-11-14 2013-09-30 13F MATADOR RES COM 576485205 41,369 30,669 286.63 676 424.03 0.0024
2013-08-22 2013-06-30 13F/A-1 MATADOR RES COM 576485205 10,700 10,700 129 0.0005
2013-08-14 2013-06-30 13F MATADOR RES COM 576485205 10,700 129 0.0005
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.