Institutional ownership · Form 13F
REI institutional ownership
RING ENERGY, INC.: reported institutional holdings as of 2026-06-30 (filed through 2026-08-31), aggregated by StockEyes from SEC Form 13F information tables. REI is one of 2732 tickers in the validated publication set. Mapping coverage in this publication set: 4562 of 6046 universe tickers have at least one validated CUSIP mapping (75.5%). Latest-quarter filed value resolved to any listed ticker: 77.3%; resolved to this universe: 77.2%.
REI: change since the prior quarter's filings
More managers reported a position, with the count rising from 126 in the quarter ended 2026-03-31 to 143 in the quarter ended 2026-06-30 (+17, 13.5%). Total reported shares rose to 122,465,793 (+44,077,950, 56.2%), moving the same way as the manager count. Among the 20 managers listed as top holders in both quarters, the largest increases were PEAK6 LLC (+15,929,382 shares) and BlackRock, Inc. (+10,400,044 shares), among 17 managers who added shares, and the largest decreases were SUSQUEHANNA INTERNATIONAL GROUP, LLP (-2,523,219 shares) and MILLENNIUM MANAGEMENT LLC (-2,197,891 shares), among 3 managers who reduced shares. ADAGE CAPITAL PARTNERS GP, L.L.C. (10,650,000 shares), FIRST TRUST ADVISORS LP (2,712,989 shares) and 8 more entered the listed top holders; AMERIPRISE FINANCIAL INC (6,670,183 shares in the prior quarter), Truffle Hound Capital, LLC (2,000,000 shares in the prior quarter) and 8 more dropped out of the listed top holders.
New to 13F data? Read how to read a 13F filing, or see where institutions moved overall in the Smart Money Report.
Reported totals, quarter ended 2026-06-30
143 reporting managers held 122,465,793 shares, reported value $128,133,946 exactly as filed. Values are position values transcribed from the filings, not current market prices.
Reported quarter-over-quarter change (quarter ended 2026-03-31 to quarter ended 2026-06-30): reporting managers +17, reported shares +44,077,950 (+56.23%), reported value +11.15%. These changes compare two filing snapshots.
Shares outstanding check: 233,951,765 shares reported by the issuer (SEC XBRL, period ended 2026-06-30). Reported 13F shares equal 52.3% of that figure. This page passed the publication sanity gate before listing.
REI in this quarter's filings
Concentration check: the largest reported position, PEAK6 LLC with 17,079,382 shares, is 13.9% of all shares reported for REI this quarter. The five largest reporting managers together account for 46.3% of the reported total, so the headline total is spread across a broad manager base rather than a few holders.
Reported quarter-over-quarter change: the reporting-manager count rose by 17 versus the quarter ended 2026-03-31, and reported shares moved +56.23% (+44,077,950 shares). That is a comparison of two filing snapshots, not a record of trades on any single day.
Shares-outstanding cross-check: reported 13F shares equal 52.3% of the issuer share count used at the publication gate (233,951,765 shares, issuer period ended 2026-06-30). The gate publishes a ticker only when that relationship is plausible; lending chains can push reported totals above a simple ownership share, which is why the figure is a sanity check and not an ownership percentage.
Largest reporting managers, REI
| # | Manager | Shares | Value as filed | Share of reported total |
|---|---|---|---|---|
| 1 | PEAK6 LLC | 17,079,382 | $18,445,733 | 13.9% |
| 2 | BlackRock, Inc. | 12,086,312 | $13,053,218 | 9.9% |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 10,650,000 | $11,502,000 | 8.7% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 8,884,550 | $9,595,314 | 7.3% |
| 5 | TWO SIGMA INVESTMENTS, LP | 8,047,045 | $8,690,809 | 6.6% |
| 6 | BARCLAYS PLC | 7,399,092 | $7,991,020 | 6.0% |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4,616,412 | $4,985,725 | 3.8% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 4,575,428 | $4,942,733 | 3.7% |
| 9 | RENAISSANCE TECHNOLOGIES LLC | 4,117,089 | $4,446,456 | 3.4% |
| 10 | CDC Financial, Inc. | 3,539,562 | $3,822,727 | 2.9% |
| 11 | UBS Group AG | 3,098,584 | $3,346,471 | 2.5% |
| 12 | Connor, Clark & Lunn Investment Management Ltd. | 2,922,388 | $3,156,179 | 2.4% |
| 13 | FIRST TRUST ADVISORS LP | 2,712,989 | $2,930,028 | 2.2% |
| 14 | STATE STREET CORP | 2,509,052 | $2,709,776 | 2.0% |
| 15 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 2,166,848 | $2,340,196 | 1.8% |
Manager names and figures are transcribed from each manager's own Form 13F information table. A manager listing shares in this snapshot does not mean it holds them today.
Reported change, 2026-03-31 to 2026-06-30
| Quarter ended | Filed through | Reporting managers | Reported shares | Value as filed |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-29 | 126 | 78,387,843 | $115,280,881 |
| 2026-06-30 | 2026-08-31 | 143 | 122,465,793 | $128,133,946 |
Every change figure on this page is a reported quarter-over-quarter change between filing snapshots. It is not real-time trading activity.
REI reported totals over time
Quarter ended 2026-06-30: 143 reporting managers · 122,465,793 reported shares · $128,133,946 value as filed.
The full archived series is part of StockEyes Pro. Continue with Google to sign in.
Quarter-end 13F filed data, long positions only; filings arrive up to 45 days after quarter end.
CUSIPs behind the REI total
The validated bridge mapped 1 current CUSIP(s) to REI for this quarter: 76680V108. Option pseudo-CUSIPs, units, warrants, and preferred classes are excluded from these common-share totals. Mapping coverage in this publication set: 4562 of 6046 universe tickers have at least one validated CUSIP mapping (75.5%). Latest-quarter filed value resolved to any listed ticker: 77.3%; resolved to this universe: 77.2%.
What this page is and is not
Form 13F reports are quarterly holdings snapshots. Managers file up to about 45 days after quarter-end, so these figures describe reported positions as of the quarter-end date, not holdings today. 13F lists reportable long positions from managers above the SEC reporting threshold and omits short positions entirely.
This page is informational only. It is not investment advice, a recommendation, or a signal to buy or sell. Source: SEC Form 13F bulk data set for filings through 2026-08-31 (period ended 2026-06-30), joined to tickers through StockEyes' validated CUSIP bridge. Methodology and coverage are documented on the institutional ownership hub.
Insider transactions for REI (officer and director buys and sells) are covered by InsiderTrace: insidertrace.com/stock/rei. StockEyes does not duplicate insider transaction tables.
Related StockEyes pages
Latest headlines tagged REI are on the market news wire. Upcoming earnings and market dates are on the events calendar. The term itself is defined in the institutional investor glossary entry, and the research workflow behind pages like this one is walked through in how to research a stock and how to compare SEC filings.