William Blair & Company
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William Blair & Company’s Matador Resources MTDR Stock Holding History

William Blair & Company’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
Q2 		$552K Buy
11,091
+5,892
+113% +$335K ﹤0.01% 1194
2026
Q1 		$328K Buy
+5,199
New +$260K ﹤0.01% 1298
2025
Q4 		– Sell
-11,359
Closed -$510K – 1921
2025
Q3 		$510K Buy
11,359
+2,228
+24% +$109K ﹤0.01% 1109
2025
Q2 		$436K Buy
9,131
+1,127
+14% +$49.8K ﹤0.01% 1133
2025
Q1 		$409K Buy
+8,004
New +$442K ﹤0.01% 1141

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LSV Asset Management
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Wellington Management Group
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Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

William Blair & Company's MTDR Position: Q2 2026 in Review

William Blair & Company increased its Matador Resources (MTDR) stake by 113% in Q2 2026, buying an estimated $335K and bringing the position to 11,091 shares worth $552K. The position accounts for ﹤0.01% of the portfolio, ranked #1194.

William Blair & Company first reported a position in MTDR in Q1 2025 and has held it in 5 quarters since. 492 funds tracked by Wall St. Rank hold MTDR as of Q2 2026.

  • William Blair & Company held 11,091 shares of Matador Resources worth $552K as of Q2 2026.
  • William Blair & Company bought 5,892 Matador Resources shares in Q2 2026, an estimated $335K.
  • Matador Resources made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1194 holding.
  • William Blair & Company first reported a position in Matador Resources in Q1 2025 and has held it in 5 quarters since.
  • 492 funds tracked by Wall St. Rank held Matador Resources as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.