RILEY EXPLORATION PERMIAN IN (REPX) Institutional Shareholders
RILEY EXPLORATION PERMIAN IN (REPX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $492.72M in REPX holdings during the latest filing period.
Yorktown Energy Partners Xi, L.P. is currently the largest disclosed institutional shareholder of REPX tracked by InsiderSet, reporting ownership valued at approximately $42.32M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $55.61M, representing an estimated gain of +31.40% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 50% of the total disclosed REPX value among the investors covered in this analysis. Major shareholders include Yorktown Energy Partners Xi, L.P., Blackrock, Inc., Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in RILEY EXPLORATION PERMIAN IN (REPX).
This page ranks the largest institutional REPX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
189
Total Reported Value
$492.72M
Largest Holder
Yorktown Energy Partners Xi, L.P.
Largest Position
$42.32M
Insider Transactions (90d)
7
Latest Filing Quarter
Q2 2026
New Institutional Positions
84
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Yorktown Energy Partners Xi, L.P. | 39.15% | 1,284,113 | $42,324,364 | $55,614,934 | +$13,290,570 | +31.40% | |
| Blackrock, Inc. | 0.00% | 1,222,746 | $40,301,726 | $52,957,129 | +$12,655,403 | +31.40% | |
| Dimensional Fund Advisors Lp | 0.00% | 799,838 | $26,363,218 | $34,640,984 | +$8,277,766 | +31.40% | |
| American Century Companies Inc | 0.01% | 690,242 | $22,750,376 | $29,894,381 | +$7,144,005 | +31.40% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 686,882 | $22,639,631 | $29,748,859 | +$7,109,228 | +31.40% | |
| Vanguard Portfolio Management Llc | 0.00% | 652,214 | $21,496,973 | $28,247,388 | +$6,750,415 | +31.40% | |
| Vanguard Capital Management Llc | 0.00% | 644,556 | $21,244,566 | $27,915,720 | +$6,671,154 | +31.40% | |
| Aqr Capital Management Llc | 0.01% | 579,319 | $19,094,355 | $25,090,306 | +$5,995,951 | +31.40% | |
| Two Sigma Investments, Lp | 0.01% | 523,161 | $17,243,387 | $22,658,103 | +$5,414,716 | +31.40% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.02% | 430,946 | $14,203,980 | $18,664,271 | +$4,460,291 | +31.40% |
| Geode Capital Management, Llc | 0.00% | 333,245 | $10,985,188 | $14,432,841 | +$3,447,653 | +31.38% | |
| State Street Corp | 0.00% | 325,904 | $10,741,796 | $14,114,902 | +$3,373,106 | +31.40% | |
| Lsv Asset Management | 0.02% | 306,793 | $10,112,000 | $13,287,205 | +$3,175,205 | +31.40% | |
| Royce & Associates Lp | 0.07% | 272,319 | $8,975,634 | $11,794,136 | +$2,818,502 | +31.40% | |
| Mackenzie Financial Corp | 0.01% | 259,419 | $8,550,450 | $11,235,437 | +$2,684,987 | +31.40% | |
| Kennedy Capital Management Llc | 0.15% | 254,631 | $8,392,638 | $11,028,069 | +$2,635,431 | +31.40% | |
| Bank Of New York Mellon Corp | 0.00% | 243,344 | $8,020,611 | $10,539,229 | +$2,518,618 | +31.40% | |
| Denali Advisors Llc | 0.76% | 228,051 | $7,516,561 | $9,876,889 | +$2,360,328 | +31.40% | |
| First Trust Advisors Lp | 0.00% | 219,746 | $7,242,828 | $9,517,199 | +$2,274,371 | +31.40% | |
| Renaissance Group Llc | 0.25% | 184,190 | $6,070,902 | $7,977,269 | +$1,906,367 | +31.40% | |
| Prudential Financial Inc | 0.01% | 176,378 | $5,813,419 | $7,638,931 | +$1,825,512 | +31.40% | |
| Ubs Group Ag | 0.00% | 174,219 | $5,742,259 | $7,545,425 | +$1,803,166 | +31.40% | |
| Northern Trust Corp | 0.00% | 167,119 | $5,508,242 | $7,237,924 | +$1,729,682 | +31.40% | |
| Point72 Asset Management, L.P. | 0.01% | 160,994 | $5,306,362 | $6,972,650 | +$1,666,288 | +31.40% | |
| Seizert Capital Partners, Llc | 0.22% | 159,024 | $5,241,431 | $6,887,329 | +$1,645,898 | +31.40% | |
| Fmr Llc | 0.00% | 143,785 | $4,739,143 | $6,227,328 | +$1,488,185 | +31.40% | |
| Raymond James Financial Inc | 0.00% | 139,075 | $4,583,912 | $6,023,338 | +$1,439,426 | +31.40% | |
| Jackson Hole Capital Partners, Llc | 0.68% | 112,617 | $4,104,890 | $4,877,442 | +$772,552 | +18.82% | |
| Umb Bank, N.A. | 0.05% | 123,522 | $4,071,285 | $5,349,738 | +$1,278,453 | +31.40% | |
| Goldman Sachs Group Inc | 0.00% | 122,730 | $4,045,181 | $5,315,436 | +$1,270,255 | +31.40% | |
| Los Angeles Capital Management Llc | 0.01% | 115,704 | $3,813,604 | $5,011,140 | +$1,197,536 | +31.40% | |
| Citadel Advisors Llc | 0.00% | 109,076 | $3,595,144 | $4,724,082 | +$1,128,938 | +31.40% | |
| Victory Capital Management Inc | 0.00% | 102,261 | $3,370,523 | $4,428,924 | +$1,058,401 | +31.40% | |
| Charles Schwab Investment Management Inc | 0.00% | 96,746 | $3,188,748 | $4,190,069 | +$1,001,321 | +31.40% | |
| Price T Rowe Associates Inc | 0.00% | 96,197 | $3,171,000 | $4,166,292 | +$995,292 | +31.39% | |
| Kennondale Capital Management Llc | 2.07% | 94,041 | $3,099,591 | $4,072,916 | +$973,325 | +31.40% | |
| D. E. Shaw & Co., Inc. | 0.00% | 93,361 | $3,077,179 | $4,043,465 | +$966,286 | +31.40% | |
| Lazard Asset Management Llc | 0.00% | 89,827 | $2,960,698 | $3,890,407 | +$929,709 | +31.40% | |
| Driehaus Capital Management Llc | 0.02% | 87,849 | $2,895,503 | $3,804,740 | +$909,237 | +31.40% | |
| Mcalvany Wealth Management Llc | 2.11% | 85,523 | $2,818,837 | $3,704,001 | +$885,164 | +31.40% | |
| Osaic Holdings, Inc. | 0.00% | 77,874 | $2,566,725 | $3,372,723 | +$805,998 | +31.40% | |
| Vanguard Fiduciary Trust Co | 0.00% | 73,615 | $2,426,350 | $3,188,266 | +$761,916 | +31.40% | |
| New York State Common Retirement Fund | 0.00% | 72,144 | $2,377,866 | $3,124,557 | +$746,691 | +31.40% | |
| Ameriprise Financial Inc | 0.00% | 70,600 | $2,326,976 | $3,057,686 | +$730,710 | +31.40% | |
| Empowered Funds, Llc | 0.01% | 70,582 | $2,326,382 | $3,056,906 | +$730,524 | +31.40% | |
| Segall Bryant & Hamill, Llc | 0.03% | 69,188 | $2,280,436 | $2,996,532 | +$716,096 | +31.40% | |
| Morgan Stanley | 0.00% | 68,980 | $2,273,601 | $2,987,524 | +$713,923 | +31.40% | |
| Bnp Paribas Financial Markets | 0.00% | 57,559 | $1,897,145 | $2,492,880 | +$595,735 | +31.40% | |
| Martingale Asset Management L P | 0.04% | 55,466 | $1,828,160 | $2,402,232 | +$574,072 | +31.40% | |
| Jackson Creek Investment Advisors Llc | 0.48% | 42,081 | $1,442,000 | $1,822,528 | +$380,528 | +26.39% |
Frequently asked questions about REPX
Who owns the most REPX stock?
The largest holders of REPX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for RILEY EXPLORATION PERMIAN IN (REPX).
Is REPX widely held by superinvestors?
Many widely followed stocks like REPX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly REPX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.