CM
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Castleark Management’s Matador Resources MTDR Stock Holding History

Castleark Management’s Portfolio MTDR Stock Details MTDR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$528K Hold
8,350
– – 0.02% 256
2025
Q4 		$354K Hold
8,350
– – 0.01% 260
2025
Q3 		$375K Hold
8,350
– – 0.01% 249
2025
Q2 		$398K Sell
8,350
-19,000
-69% -$839K 0.01% 234
2025
Q1 		$1.4M Hold
27,350
– – 0.05% 205
2024
Q4 		$1.54M Hold
27,350
– – 0.05% 194
2024
Q3 		$1.35M Sell
27,350
-99,700
-78% -$5.61M 0.06% 186
2024
Q2 		$7.57M Buy
127,050
+58,120
+84% +$3.65M 0.31% 65
2024
Q1 		$4.6M Buy
68,930
+14,230
+26% +$846K 0.19% 127
2023
Q4 		$3.11M Hold
54,700
– – 0.14% 160
2023
Q3 		$3.25M Buy
54,700
+27,590
+102% +$1.61M 0.17% 137
2023
Q2 		$1.42M Sell
27,110
-12,280
-31% -$593K 0.06% 177
2023
Q1 		$1.88M Sell
39,390
-72,110
-65% -$4.06M 0.09% 162
2022
Q4 		$6.38M Buy
111,500
+9,890
+10% +$624K 0.33% 72
2022
Q3 		$4.97M Sell
101,610
-11,270
-10% -$608K 0.28% 87
2022
Q2 		$5.26M Sell
112,880
-63,620
-36% -$3.45M 0.28% 90
2022
Q1 		$9.35M Buy
176,500
+21,900
+14% +$1.04M 0.4% 50
2021
Q4 		$5.71M Buy
154,600
+101,200
+190% +$4.14M 0.21% 115
2021
Q3 		$2.03M Buy
+53,400
New +$1.64M 0.08% 184
2018
Q2 		– Sell
-443,601
Closed -$13.3M – 408
2018
Q1 		$13.3M Sell
443,601
-95,419
-18% -$2.9M 0.42% 73
2017
Q4 		$16.8M Buy
539,020
+192,925
+56% +$5.29M 0.5% 56
2017
Q3 		$9.4M Buy
+346,095
New +$8.22M 0.29% 120
2015
Q3 		– Sell
-357,850
Closed -$8.95M – 392
2015
Q2 		$8.95M Buy
+357,850
New +$9.59M 0.24% 128

Other funds holding MTDR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Castleark Management's MTDR Position: Q1 2026 in Review

Castleark Management held its Matador Resources (MTDR) position steady in Q1 2026 at 8,350 shares worth $528K. The position accounts for 0.02% of the portfolio, ranked #256.

Castleark Management first reported a position in MTDR in Q2 2015 and has held it in 23 quarters since. The position peaked at $16.8M in Q4 2017. 493 funds tracked by Wall St. Rank hold MTDR as of Q1 2026.

  • Castleark Management held 8,350 shares of Matador Resources worth $528K as of Q1 2026.
  • Castleark Management left its Matador Resources share count unchanged in Q1 2026.
  • Matador Resources made up 0.02% of Castleark Management's portfolio in Q1 2026, its #256 holding.
  • Castleark Management first reported a position in Matador Resources in Q2 2015 and has held it in 23 quarters since.
  • Castleark Management's Matador Resources position peaked at $16.8M in Q4 2017.
  • 493 funds tracked by Wall St. Rank held Matador Resources as of Q1 2026.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.