Which hedge funds own REI? RING ENERGY INC, Q2 2026 13F holders
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13 of the hedge funds tracked by WhaleCreep disclosed a position in REI (RING ENERGY INC) in their Q2 2026 13F filings, worth $25.7m in total. The largest holder by portfolio weight is Nierenberg Investment Management Company, LLC at 0.8% of its book. 6 managers opened a new position this quarter: Nierenberg Investment Management Company, LLC, Plustick Management LLC, EntryPoint Capital, LLC, Adage Capital Partners GP, L.L.C.. 11 exited: Arrowstreet Capital, Limited Partnership, Brevan Howard Capital Management LP, CastleKnight Management LP.
Who discovered REI first?
Earliest meaningful positions among the 8 tracked managers we observed opening REI since Q4 2013.
1 Afton Capital Management LLC First reported Q2 2015 High conviction 5.8%initial weight · $2.2m Exitedby Q4 2021 · held 2q -12%stock since Q2 2015
Weight of Afton Capital Management LLC's 13F book in REI, by quarter
- 5.8% peak weight, Q3 2015
- $2.2m peak reported value
- 2 quarters held
- 44q before the median tracked entry
The stock's split-adjusted price moved -12% between Q2 2015 and Q3 2015, the last quarter this manager reported the position.
19 managers already held REI when our coverage of them began
Quantbot Technologies LP (Q1 2026), Two Sigma Investments, LP (Q1 2026), Graham Capital Management, L.P. (Q1 2026), Schonfeld Strategic Advisors LLC (Q1 2026), Centiva Capital, LP (Q1 2026), Millennium Management LLC (Q1 2026), Boothbay Fund Management, LLC (Q1 2026), Arrowstreet Capital, Limited Partnership (Q1 2026), Brevan Howard Capital Management LP (Q1 2026), CastleKnight Management LP (Q1 2026), Catalyst Funds Management Pty LTD (Q1 2026), Citadel Advisors LLC (Q1 2026), Ctc Alternative Strategies, Ltd. (Q1 2026), ExodusPoint Capital Management, LP (Q1 2026), Mangrove Partners Im, LLC (Q1 2026), Marshall Wace, LLP (Q1 2026), Truffle Hound Capital, LLC (Q1 2026), Verdad Advisers, LP (Q1 2026), Voleon Capital Management LP (Q1 2026).
Their first filing on record already includes REI, so when they first bought it is unknown. They are not ranked above.
View discovery timeline
- Early holdersQ4 2013 – now8 new tracked holders · 1.1% of tracked managers holding now
Dots mark the ranked managers' first reported quarters. Price is the quarter-end price implied by 13F filings, split-adjusted, shown from Q1 2026 where the series is continuous. Coverage widened in Q1 2026 from about a hundred managers to over a thousand, so holders and new holders are shown relative to the managers filing each quarter.
How this is calculated
13F filings are quarterly snapshots of long US-listed equity positions. They do not show exact purchase dates, intra-quarter trading, short positions, most derivatives, or a manager's actual performance. "First reported" is the first quarter-end filing that shows the position.
A manager is ranked only if we observed it filing, without REI, within two quarters before its first position. Ranking is by the first quarter the position reached 1% of the manager's 13F book in a run of at least 2 filings, then by peak weight. "High conviction" means a peak weight of at least 5%.
Stock changes are the split-adjusted change in the quarter-end price implied by 13F filings, excluding dividends. They describe the stock over the period, not the return any manager earned. Phases are cut where the share of tracked managers holding REI passed one third and two thirds of its peak.
Which hedge funds hold REI? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Nierenberg Investment Management Company, LLC | Q2 2026 | 0.8% | $1.5m | 1,399,555 | – | new |
| Plustick Management LLC | Q2 2026 | 0.5% | $1.1m | 1,000,000 | – | new |
| EntryPoint Capital, LLC | Q2 2026 | 0.0% | $96.3k | 89,133 | – | new |
| Quantbot Technologies LP | Q2 2026 | 0.0% | $410.3k | 379,896 | -5% | reduced |
| Adage Capital Partners GP, L.L.C. | Q2 2026 | 0.0% | $11.5m | 10,650,000 | – | new |
| Two Sigma Investments, LP | Q2 2026 | 0.0% | $8.7m | 8,047,045 | 33% | added |
| Graham Capital Management, L.P. | Q2 2026 | 0.0% | $166.5k | 154,131 | 50% | added |
| Alyeska Investment Group, L.P. | Q2 2026 | 0.0% | $771.6k | 714,423 | – | new |
| Schonfeld Strategic Advisors LLC | Q2 2026 | 0.0% | $351.4k | 325,416 | 165% | added |
| Centiva Capital, LP | Q2 2026 | 0.0% | $35.0k | 32,433 | -35% | reduced |
| Jain Global LLC | Q2 2026 | 0.0% | $69.7k | 64,560 | – | new |
| Millennium Management LLC | Q2 2026 | 0.0% | $974.3k | 902,106 | -71% | reduced |
| Boothbay Fund Management, LLC | Q2 2026 | 0.0% | $15.7k | 14,522 | -87% | reduced |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Arrowstreet Capital, Limited Partnership | 0.0% | $1.5m |
| Brevan Howard Capital Management LP | 0.0% | $42.2k |
| CastleKnight Management LP | 1.5% | $2.1m |
| Catalyst Funds Management Pty LTD | 0.1% | $257.8k |
| Ctc Alternative Strategies, Ltd. | 0.0% | $17.3k |
| ExodusPoint Capital Management, LP | 0.0% | $15.4k |
| Mangrove Partners Im, LLC | 0.2% | $223.0k |
| Marshall Wace, LLP | 0.0% | $1.7m |
| Truffle Hound Capital, LLC | 13.0% | $3.1m |
| Verdad Advisers, LP | 0.1% | $38.3k |
| Voleon Capital Management LP | 0.4% | $601.3k |
Held in a manager's last filing on record
These managers have not filed for the latest quarter; their last disclosure is dated.
| Manager | Last filing | Weight |
|---|---|---|
| point72 | Q2 2026 | 0.0% |
| renaissance | Q2 2026 | 0.0% |
How has hedge fund ownership of REI changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 15 | $30.3m |
| Q1 2026 | 21 | $28.7m |
| Q4 2025 | 2 | $1.6m |
| Q3 2025 | 1 | $3.1m |
| Q2 2025 | 1 | $1.7m |
| Q1 2025 | 1 | $621.5k |
| Q4 2024 | 1 | $865.8k |
| Q3 2024 | 1 | $1.5m |
| Q2 2024 | 1 | $1.3m |
| Q1 2024 | 1 | $1.0m |
| Q4 2023 | 1 | $905.0k |
| Q3 2023 | 2 | $963.5k |
| Q1 2023 | 1 | $283 |
| Q4 2022 | 2 | $1.7m |
| Q3 2022 | 1 | $829.0k |
| Q2 2022 | 1 | $1.9m |
Counts every tracked manager that disclosed REI in that quarter's filing, including managers that have since stopped filing.