MAM
REPX icon

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
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 $142M AUM 130.51% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
BEP
Bluescape Energy Partners Dallas, Texas $322M AUM 18.33% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $121B AUM 33.93% 1-Year Est. Return
YEPX
Yorktown Energy Partners X New York $69.5M AUM 143.07% 1-Year Est. Return