Mariner
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Mariner’s REX American Resources REX Stock Holding History

Mariner’s Portfolio REX Stock Details REX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$289K Sell
6,342
-832
-12% -$30.1K ﹤0.01% 2912
2025
Q4 		$232K Sell
7,174
-1,975
-22% -$64.3K ﹤0.01% 3059
2025
Q3 		$280K Buy
9,149
+361
+4% +$10.3K ﹤0.01% 2871
2025
Q2 		$214K Buy
+8,788
New +$185K ﹤0.01% 2999

Other funds holding REX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
SFM
Systematic Financial Management Teaneck, New Jersey $4.36B AUM 40.56% 1-Year Est. Return
MP
Mangrove Partners Greenwich, Connecticut $1.24B AUM 41.74% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Mariner's REX Position: Q1 2026 in Review

Mariner reduced its REX American Resources (REX) stake by 12% in Q1 2026, selling an estimated $30.1K and leaving 6,342 shares worth $289K. The position accounts for ﹤0.01% of the portfolio, ranked #2912.

Mariner first reported a position in REX in Q2 2025 and has held it in 4 quarters since. 233 funds tracked by Wall St. Rank hold REX as of Q1 2026.

  • Mariner held 6,342 shares of REX American Resources worth $289K as of Q1 2026.
  • Mariner sold 832 REX American Resources shares in Q1 2026, an estimated $30.1K.
  • REX American Resources made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #2912 holding.
  • Mariner first reported a position in REX American Resources in Q2 2025 and has held it in 4 quarters since.
  • 233 funds tracked by Wall St. Rank held REX American Resources as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.