Jane Street’s Riley Exploration Permian REPX Stock Holding History

Jane Street’s Portfolio REPX Stock Details REPX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$283K	Buy	+8,600	New	+$307K	﹤0.01%	9337

Other funds holding REPX

YEPX

Yorktown Energy Partners XI New York $108M AUM 57.73% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

Jane Street's REPX Position: Q2 2026 in Review

Jane Street sold out of Riley Exploration Permian (REPX) in Q2 2026, closing a stake of 18,564 shares — an estimated $662K sold.

Jane Street first reported a position in REPX in Q2 2023 and held it in 6 quarters. The position peaked at $899K in Q3 2025. 198 funds tracked by Wall St. Rank hold REPX as of Q2 2026.

Jane Street reported no remaining Riley Exploration Permian position as of Q2 2026 after selling out during the quarter.
Jane Street sold 18,564 Riley Exploration Permian shares in Q2 2026, an estimated $662K.
Jane Street first reported a position in Riley Exploration Permian in Q2 2023 and held it in 6 quarters.
Jane Street's Riley Exploration Permian position peaked at $899K in Q3 2025.
198 funds tracked by Wall St. Rank held Riley Exploration Permian as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.