Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in REI held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 7.5M | $11.5M | β | 3.587% | 0.00% |
| 2 | AMERIPRISE FINANCIAL INC | 6.7M | $10.2M | +33.1% | 3.186% | 0.00% |
| 3 | TWO SIGMA INVESTMENTS, LP | 6.1M | $9.3M | +358.6% | 2.892% | 0.01% |
| 4 | BARCLAYS PLC | 5.7M | $8.7M | -29.1% | 2.710% | 0.00% |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.8M | $5.8M | +75.0% | 1.819% | 0.00% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.5M | $5.4M | β | 1.672% | 0.00% |
| 7 | CDC Financial, Inc. | 3.5M | $5.3M | -17.2% | 1.652% | 3.92% |
| 8 | UBS Group AG | 3.3M | $5.0M | +0.5% | 1.575% | 0.00% |
| 9 | MILLENNIUM MANAGEMENT LLC | 3.1M | $4.7M | +1558.9% | 1.481% | 0.00% |
| 10 | Connor, Clark & Lunn Investment Management Ltd. | 2.6M | $4.0M | +83.4% | 1.256% | 0.01% |
| 11 | CITIGROUP INC | 2.2M | $3.4M | β | 1.058% | 0.00% |
| 12 | Truffle Hound Capital, LLC | 2.0M | $3.1M | β | 0.955% | 1.87% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 2.0M | $3.0M | +12.7% | 0.951% | 0.00% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 1.9M | $2.8M | +5.9% | 0.887% | 0.06% |
| 15 | BlackRock, Inc. | 1.7M | $2.6M | -0.1% | 0.805% | 0.00% |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 1.6M | $2.5M | -7.4% | 0.774% | 0.00% |
| 17 | CastleKnight Management LP | 1.4M | $2.1M | β | 0.650% | 0.18% |
| 18 | GOLDMAN SACHS GROUP INC | 1.2M | $1.8M | +2717.1% | 0.562% | 0.00% |
| 19 | Empowered Funds, LLC | 1.2M | $1.8M | +9.8% | 0.557% | 0.01% |
| 20 | PEAK6 LLC | 1.1M | $1.8M | -39.5% | 0.549% | 0.85% |
| 21 | MARSHALL WACE, LLP | 1.1M | $1.7M | +1.0% | 0.520% | 0.00% |
| 22 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.0M | $1.5M | +74.9% | 0.481% | 0.00% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 991K | $1.5M | β | 0.473% | 0.00% |
| 24 | WINTON GROUP Ltd | 949K | $1.5M | -2.1% | 0.453% | 0.05% |
| 25 | RBF Capital, LLC | 907K | $1.4M | 0.0% | 0.433% | 0.07% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in REI β a direct measure of their conviction.
Filings activity in REI during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new REI position in Q1 2026
Institutions that fully closed their REI position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 123 | +15% | 43.31% | +23.85 pp | $117M | +123% |
| Q4 2025 | 107 | 3.6% | 19.46% | 4.90 pp | $53M | 20% |
| Q3 2025 | 111 | 15% | 24.36% | +5.93 pp | $66M | +32% |
| Q2 2025 | 131 | 8.4% | 18.43% | 19.93 pp | $50M | 52% |
| Q1 2025 | 143 | 5.9% | 38.36% | 14.09 pp | $104M | 27% |
| Q4 2024 | 152 | 0.7% | 52.45% | 11.08 pp | $142M | 17% |
| Q3 2024 | 153 | +10% | 63.53% | 1.69 pp | $172M | 2.6% |
| Q2 2024 | 139 | β | 65.22% | β | $176M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as the highest-conviction signal because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 15, 2026 | Johl Sundip Singh | Buy | 231K | $1.21 | $279K |
| Jun 15, 2026 | McKinney Paul D. | Buy | 50K | $1.19 | $60K |
Quick answers to the most common questions about buying REI stock.
Based on Q1 2026 13F filings, institutional ownership of Ring Energy, Inc. stands at 43.3%, held across 123 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of REI, with approximately 7,511,851 shares worth $0.01B as of Q1 2026.
Yes β 4 widely-followed marquee investors appear among the top 25 institutional holders of REI, including TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for REI is 75 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
35 institutions opened new positions in REI during Q1 2026, while 19 fully exited. 81 added to existing positions and 4 trimmed.
REI institutional ownership rose by 23.85 percentage points quarter-over-quarter, with a net change of +16 holders.
The top 10 institutions account for 59.8% of all reported 13F value in REI, and the top 25 account for 87.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Ring Energy, Inc. (REI) Institutional Ownership