ABC Arbitrage’s Rio Tinto RIO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q3
$13.1M Sell
138,756
-267,513
-66% -$26M 1.28% 17
2026
Q2
$38.6M Buy
406,269
+126,462
+45% +$12.8M 4.16% 3
2026
Q1
$26.1M Sell
279,807
-59,084
-17% -$5.39M 3.47% 8
2025
Q4
$27.1M Sell
338,891
-56,530
-14% -$4.07M 2.54% 11
2025
Q3
$26.1M Sell
395,421
-2,694
-0.7% -$167K 2.57% 10
2025
Q2
$23.2M Buy
398,115
+118,428
+42% +$6.99M 2.65% 8
2025
Q1
$16.8M Sell
279,687
-60,828
-18% -$3.74M 3.12% 5
2024
Q4
$20M Buy
+340,515
New +$21.7M 2.87% 9

Other funds holding RIO

ABC Arbitrage's RIO Position: Q3 2026 in Review

ABC Arbitrage reduced its Rio Tinto (RIO) stake by 66% in Q3 2026, selling an estimated $26M and leaving 138,756 shares worth $13.1M. The position accounts for 1.28% of the portfolio, ranked #17.

ABC Arbitrage first reported a position in RIO in Q4 2024 and has held it in 8 quarters since. The position peaked at $38.6M in Q2 2026. 296 funds tracked by Wall St. Rank hold RIO as of Q3 2026.

  • ABC Arbitrage held 138,756 shares of Rio Tinto worth $13.1M as of Q3 2026.
  • ABC Arbitrage sold 267,513 Rio Tinto shares in Q3 2026, an estimated $26M.
  • Rio Tinto made up 1.28% of ABC Arbitrage's portfolio in Q3 2026, its #17 holding.
  • ABC Arbitrage first reported a position in Rio Tinto in Q4 2024 and has held it in 8 quarters since.
  • ABC Arbitrage's Rio Tinto position peaked at $38.6M in Q2 2026.
  • 296 funds tracked by Wall St. Rank held Rio Tinto as of Q3 2026.

Based on ABC Arbitrage's 13F filing for Q3 2026, filed 23 Oct 2026.