RING ENERGY INC (REI) Top Institutional Shareholders
RING ENERGY INC (REI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $115.16M in REI holdings during the latest filing period.
Vanguard Capital Management Llc is currently the largest disclosed institutional shareholder of REI tracked by InsiderSet, reporting ownership valued at approximately $11.49M in its March 31, 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 $8.64M, representing an estimated loss of -24.84% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 60% of the total disclosed REI value among the investors covered in this analysis. Major shareholders include Vanguard Capital Management Llc, Ameriprise Financial Inc, Two Sigma Investments, Lp, and several other long-term asset managers with concentrated positions in RING ENERGY INC (REI).
This page ranks the largest institutional REI 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
124
Total Reported Value
$115.16M
Largest Holder
Vanguard Capital Management Llc
Largest Position
$11.49M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
143
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Vanguard Capital Management Llc | 0.00% | 7,511,851 | $11,493,132 | $8,638,629 | -$2,854,503 | -24.84% | |
| Ameriprise Financial Inc | 0.00% | 6,670,183 | $10,205,381 | $7,670,710 | -$2,534,671 | -24.84% | |
| Two Sigma Investments, Lp | 0.01% | 6,055,623 | $9,265,103 | $6,963,966 | -$2,301,137 | -24.84% | |
| Barclays Plc | 0.00% | 5,675,001 | $8,682,752 | $6,526,251 | -$2,156,501 | -24.84% | |
| Vanguard Portfolio Management Llc | 0.00% | 3,500,904 | $5,356,383 | $4,026,040 | -$1,330,343 | -24.84% | |
| Cdc Financial, Inc. | 4.38% | 3,459,562 | $5,293,130 | $3,978,496 | -$1,314,634 | -24.84% | |
| Ubs Group Ag | 0.00% | 3,298,569 | $5,046,811 | $3,793,354 | -$1,253,457 | -24.84% | |
| Millennium Management Llc | 0.00% | 3,099,997 | $4,742,995 | $3,564,997 | -$1,177,998 | -24.84% | |
| Susquehanna International Group, Llp | 0.01% | 3,049,959 | $4,666,438 | $3,507,453 | -$1,158,985 | -24.84% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 2,628,942 | $4,022,281 | $3,023,283 | -$998,998 | -24.84% | |
| Truffle Hound Capital, Llc | 1.87% | 2,000,000 | $3,060,000 | $2,300,000 | -$760,000 | -24.84% | |
| Geode Capital Management, Llc | 0.00% | 1,992,362 | $3,049,998 | $2,291,216 | -$758,782 | -24.88% | |
| Bridgeway Capital Management, Llc | 0.06% | 1,857,802 | $2,842,437 | $2,136,472 | -$705,965 | -24.84% | |
| Blackrock, Inc. | 0.00% | 1,686,268 | $2,579,991 | $1,939,208 | -$640,783 | -24.84% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 1,620,250 | $2,478,983 | $1,863,287 | -$615,696 | -24.84% |
| Jane Street Group, Llc | 0.00% | 1,517,705 | $2,322,089 | $1,745,361 | -$576,728 | -24.84% | |
| Castleknight Management Lp | 0.10% | 1,361,217 | $2,082,662 | $1,565,400 | -$517,262 | -24.84% | |
| Goldman Sachs Group Inc | 0.00% | 1,175,932 | $1,799,176 | $1,352,322 | -$446,854 | -24.84% | |
| Empowered Funds, Llc | 0.01% | 1,167,286 | $1,785,948 | $1,342,379 | -$443,569 | -24.84% | |
| Peak6 Llc | 0.05% | 1,150,000 | $1,759,500 | $1,322,500 | -$437,000 | -24.84% | |
| Marshall Wace, Llp | 0.00% | 1,088,738 | $1,665,769 | $1,252,049 | -$413,720 | -24.84% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 1,007,921 | $1,542,119 | $1,159,109 | -$383,010 | -24.84% | |
| Vanguard Fiduciary Trust Co | 0.00% | 990,759 | $1,515,861 | $1,139,373 | -$376,488 | -24.84% | |
| Winton Group Ltd | 0.05% | 948,912 | $1,451,835 | $1,091,249 | -$360,586 | -24.84% | |
| Rbf Capital, Llc | 0.07% | 907,417 | $1,388,348 | $1,043,530 | -$344,818 | -24.84% | |
| State Street Corp | 0.00% | 806,087 | $1,233,313 | $927,000 | -$306,313 | -24.84% | |
| Citadel Advisors Llc | 0.00% | 738,183 | $1,129,420 | $848,910 | -$280,510 | -24.84% | |
| De Lisle Partners Llp | 0.13% | 693,961 | $1,058,291 | $798,055 | -$260,236 | -24.59% | |
| Bank Of New York Mellon Corp | 0.00% | 682,364 | $1,044,018 | $784,719 | -$259,299 | -24.84% | |
| Quadrature Capital Ltd | 0.01% | 426,759 | $652,941 | $490,773 | -$162,168 | -24.84% | |
| Quantbot Technologies Lp | 0.03% | 401,212 | $613,854 | $461,394 | -$152,460 | -24.84% | |
| Invesco Ltd. | 0.00% | 399,556 | $611,321 | $459,489 | -$151,832 | -24.84% | |
| Voleon Capital Management Lp | 0.01% | 392,990 | $601,275 | $451,938 | -$149,337 | -24.84% | |
| Northern Trust Corp | 0.00% | 347,772 | $532,091 | $399,938 | -$132,153 | -24.84% | |
| Bank Of America Corp | 0.00% | 286,013 | $437,600 | $328,915 | -$108,685 | -24.84% | |
| Sprott Inc. | 0.01% | 285,000 | $436,050 | $327,750 | -$108,300 | -24.84% | |
| Morgan Stanley | 0.00% | 267,456 | $409,209 | $307,574 | -$101,635 | -24.84% | |
| State Of Wyoming | 0.05% | 259,026 | $396,310 | $297,880 | -$98,430 | -24.84% | |
| Point72 Asset Management, L.P. | 0.00% | 248,012 | $379,458 | $285,214 | -$94,244 | -24.84% | |
| Omers Administration Corp | 0.00% | 208,800 | $319,464 | $240,120 | -$79,344 | -24.84% | |
| Xtx Topco Ltd | 0.01% | 194,867 | $298,147 | $224,097 | -$74,050 | -24.84% | |
| Caitong International Asset Management Co., Ltd | 0.05% | 190,157 | $290,940 | $218,681 | -$72,259 | -24.84% | |
| Catalyst Funds Management Pty Ltd | 0.04% | 168,500 | $257,805 | $193,775 | -$64,030 | -24.84% | |
| Ritholtz Wealth Management | 0.00% | 162,001 | $247,862 | $186,301 | -$61,561 | -24.84% | |
| Mangrove Partners Im, Llc | 0.02% | 145,771 | $223,030 | $167,637 | -$55,393 | -24.84% | |
| Canada Pension Plan Investment Board | 0.00% | 140,500 | $214,965 | $161,575 | -$53,390 | -24.84% | |
| Metis Global Partners, Llc | 0.00% | 124,709 | $190,805 | $143,415 | -$47,390 | -24.84% | |
| Schonfeld Strategic Advisors Llc | 0.00% | 122,721 | $187,762 | $141,129 | -$46,633 | -24.84% | |
| Vanguard Personalized Indexing Management, Llc | 0.00% | 118,871 | $181,873 | $136,702 | -$45,171 | -24.84% | |
| Boothbay Fund Management, Llc | 0.00% | 110,938 | $169,735 | $127,579 | -$42,156 | -24.84% |
Frequently asked questions about REI
Who owns the most REI stock?
The largest holders of REI 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 RING ENERGY INC (REI).
Is REI widely held by superinvestors?
Many widely followed stocks like REI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly REI 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.