REI Ring Energy, Inc.
Ring Energy, Inc. (REI) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | +10.65M | — | $11.5M | 0.0% | 60 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -1.09M | -100.0% | $1.2M | 0.0% | 58 |
| CITADEL ADVISORS LLC Quant | Sold Out | -738.2K | -100.0% | $797.2K | 0.0% | 58 |
| Alyeska Investment Group, L.P. | New | +714.4K | — | $771.6K | 0.0% | 56 |
| Gotham Asset Management, LLC Quant Value | New | +12.7K | — | $13.7K | 0.0% | 54 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Increased | +2.50M | +154.1% | $2.7M | 0.0% | 54 |
| CastleKnight Management Long/Short | Sold Out | -1.36M | -100.0% | $1.5M | 0.0% | 52 |
| ExodusPoint Capital Management Long/Short Quant | Sold Out | -10.1K | -100.0% | $10.9K | 0.0% | 52 |
| Man Group Event Long/Short | New | +153.9K | — | $166.2K | 0.0% | 52 |
| Jain Global Long/Short Quant | New | +64.6K | — | $69.7K | 0.0% | 52 |
Most significant buyers
By move score, not size.
- ADAGE CAPITAL PARTNERS GP, L.L.C.
- Alyeska Investment Group, L.P.
- Gotham Asset Management, LLC
- RENAISSANCE TECHNOLOGIES LLC
- Man Group
Most significant sellers
By move score, not size.
- MARSHALL WACE, LLP
- CITADEL ADVISORS LLC
- CastleKnight Management
- ExodusPoint Capital Management
- Voleon Capital Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 10.7M | 0 | +10.65M | — | 0.0% | New | 60 |
| MARSHALL WACE, LLP | 2 | 0 | 1.1M | -1.09M | -100.0% | 0.0% | Sold Out | 58 |
| CITADEL ADVISORS LLC | 1 | 0 | 738.2K | -738.2K | -100.0% | 0.0% | Sold Out | 58 |
| Alyeska Investment Group, L.P. | 2 | 714.4K | 0 | +714.4K | — | 0.0% | New | 56 |
| Gotham Asset Management, LLC | 2 | 12.7K | 0 | +12.7K | — | 0.0% | New | 54 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 4.1M | 1.6M | +2.50M | +154.1% | 0.0% | Increased | 54 |
| CastleKnight Management | 3 | 0 | 1.4M | -1.36M | -100.0% | 0.0% | Sold Out | 52 |
| ExodusPoint Capital Management | 3 | 0 | 10.1K | -10.1K | -100.0% | 0.0% | Sold Out | 52 |
| Man Group | 3 | 153.9K | 0 | +153.9K | — | 0.0% | New | 52 |
| Jain Global | 3 | 64.6K | 0 | +64.6K | — | 0.0% | New | 52 |
| Voleon Capital Management | 3 | 0 | 393.0K | -393.0K | -100.0% | 0.0% | Sold Out | 51 |
| Brevan Howard Capital Management | 3 | 0 | 27.6K | -27.6K | -100.0% | 0.0% | Sold Out | 49 |
| MILLENNIUM MANAGEMENT LLC | 2 | 902.1K | 3.1M | -2.20M | -70.9% | 0.0% | Reduced | 46 |
| Schonfeld Strategic Advisors | 3 | 325.4K | 122.7K | +202.7K | +165.2% | 0.0% | Increased | 45 |
| Boothbay Fund Management | 4 | 14.5K | 110.9K | -96.4K | -86.9% | 0.0% | Reduced | 39 |
| Quadrature Capital | 3 | 134.2K | 426.8K | -292.5K | -68.5% | 0.0% | Reduced | 39 |
| Point72 Asset Management, L.P. | 1 | 157.7K | 248.0K | -90.3K | -36.4% | 0.0% | Reduced | 37 |
| TWO SIGMA INVESTMENTS, LP | 2 | 8.0M | 6.1M | +1.99M | +32.9% | 0.0% | Increased | 36 |
| Winton Group | 4 | 306.3K | 948.9K | -642.6K | -67.7% | 0.0% | Reduced | 34 |
| Graham Capital Management | 3 | 154.1K | 102.8K | +51.3K | +49.9% | 0.0% | Increased | 31 |
| Centiva Capital | 4 | 32.4K | 49.7K | -17.2K | -34.7% | 0.0% | Reduced | 26 |
| Quantbot Technologies | 4 | 379.9K | 401.2K | -21.3K | -5.3% | 0.0% | Reduced | 16 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.