Martingale Asset Management’s Riley Exploration Permian REPX Stock Holding History

Martingale Asset Management’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	$1.83M	Buy	55,466 +18,425	+50%	+$657K	0.04%	406
2026 Q1	$1.35M	Buy	37,041 +25,039	+209%	+$745K	0.03%	428
2025 Q4	$317K	Sell	12,002 -13,026	-52%	-$346K	0.01%	684
2025 Q3	$679K	Sell	25,028 -9,564	-28%	-$261K	0.02%	562
2025 Q2	$907K	Buy	34,592 +207	+0.6%	+$5.47K	0.02%	483
2025 Q1	$1M	Hold	34,385	–	–	0.03%	458
2024 Q4	$1.1M	Buy	34,385 +5,764	+20%	+$178K	0.03%	460
2024 Q3	$758K	Buy	28,621 +21,321	+292%	+$587K	0.02%	532
2024 Q2	$207K	Buy	+7,300	New	+$201K	﹤0.01%	758

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

Martingale Asset Management's REPX Position: Q2 2026 in Review

Martingale Asset Management increased its Riley Exploration Permian (REPX) stake by 50% in Q2 2026, buying an estimated $657K and bringing the position to 55,466 shares worth $1.83M. The position accounts for 0.04% of the portfolio, ranked #406.

Martingale Asset Management first reported a position in REPX in Q2 2024 and has held it in 9 quarters since. 198 funds tracked by Wall St. Rank hold REPX as of Q2 2026.

Martingale Asset Management held 55,466 shares of Riley Exploration Permian worth $1.83M as of Q2 2026.
Martingale Asset Management bought 18,425 Riley Exploration Permian shares in Q2 2026, an estimated $657K.
Riley Exploration Permian made up 0.04% of Martingale Asset Management's portfolio in Q2 2026, its #406 holding.
Martingale Asset Management first reported a position in Riley Exploration Permian in Q2 2024 and has held it in 9 quarters since.
198 funds tracked by Wall St. Rank held Riley Exploration Permian as of Q2 2026.

Based on Martingale Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.