Ring Energy, Inc.: which funds bought and sold

Institutions that bought and sold Ring Energy shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 92 institutions that filed 13F reports for both quarters added to or opened positions in Ring Energy, and 57 cut or closed them. Together they added a net 44.1M shares, +56.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 12.5M shares (+55.3%); index fund managers were net buyers of 19.1M shares (+112.0%). 49 opened a new position and 30 sold out entirely.

Bought, Q2 2026 92 institutions, 49 of them new holders Sold, Q2 2026 57 institutions, 30 of them sold out

Net change, all compared +44.1M shares (+56.3%)

Net change, active managers +12.5M shares (+55.3%), 23 bought, 15 sold

Buyers versus sellers

institutions compared, 172

92 bought 23 57 sold

Active managers and hedge funds 23 bought · 15 sold · +12.5M

Index fund managers 10 bought · 1 sold · +19.1M

Other institutions 59 bought · 41 sold · +12.5M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Peak6 LLC	+15.9M +1385.2%	17.1M	$18.4M
Adage Capital Partners Gp, L.L.C. Hedge fund	+10.7M New position	10.7M	$11.5M
Blackrock, Inc. Index funds	+10.4M +616.7%	12.1M	$13.1M
First Trust Advisors LP	+2.7M New position	2.7M	$2.9M
Geode Capital Management, LLC Index funds	+2.6M +129.6%	4.6M	$4.9M
Renaissance Technologies LLC Hedge fund	+2.5M +154.1%	4.1M	$4.4M
Two Sigma Investments, LP Hedge fund	+2.0M +32.9%	8.0M	$8.7M
Barclays PLC	+1.7M +30.4%	7.4M	$8M
State Street Corp Index funds	+1.7M +211.3%	2.5M	$2.7M
Nierenberg Investment Management Company, LLC	+1.4M New position	1.4M	$1.5M
Vanguard Capital Management LLC Index funds	+1.4M +18.3%	8.9M	$9.6M
Northern Trust Corp Index funds	+1.1M +327.5%	1.5M	$1.6M
Vanguard Portfolio Management LLC Index funds	+1.1M +31.9%	4.6M	$5M
Acadian Asset Management LLC Active manager	+1.0M +41.8%	3.6M	$3.8M
Plustick Management LLC	+1.0M New position	1.0M	$1.1M
Segall Bryant & Hamill, LLC Active manager	+937K New position	937K	$1M
Victory Capital Management Inc Active manager	+737K +3608.3%	758K	$818,564
Alyeska Investment Group, L.P. Hedge fund	+714K New position	714K	$771,577
American Century Companies Inc Active manager	+502K New position	502K	$542,342
Charles Schwab Investment Management Inc Index funds	+465K +479.5%	562K	$607,360

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Adage Capital Partners Gp, L.L.C. Hedge fund	+10.7M New position	10.7M	$11.5M
Renaissance Technologies LLC Hedge fund	+2.5M +154.1%	4.1M	$4.4M
Two Sigma Investments, LP Hedge fund	+2.0M +32.9%	8.0M	$8.7M
Acadian Asset Management LLC Active manager	+1.0M +41.8%	3.6M	$3.8M
Segall Bryant & Hamill, LLC Active manager	+937K New position	937K	$1M
Victory Capital Management Inc Active manager	+737K +3608.3%	758K	$818,564
Alyeska Investment Group, L.P. Hedge fund	+714K New position	714K	$771,577
American Century Companies Inc Active manager	+502K New position	502K	$542,342
Bridgeway Capital Management, LLC Active manager	+309K +16.6%	2.2M	$2.3M
Schonfeld Strategic Advisors LLC Hedge fund	+203K +165.2%	325K	$351,448

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Ameriprise Financial Inc	−6.7M Sold out	0	—
Susquehanna International Group, LLP	−2.5M −82.7%	527K	$568,879
Millennium Management LLC Hedge fund	−2.2M −70.9%	902K	$974,274
Truffle Hound Capital, LLC	−2.0M Sold out	0	—
Jane Street Group, LLC	−1.5M Sold out	0	—
Castleknight Management LP Hedge fund	−1.4M Sold out	0	—
Marshall Wace, LLP Hedge fund	−1.1M Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−1.0M Sold out	0	—
Citadel Advisors LLC Hedge fund	−738K Sold out	0	—
Winton Group Ltd Hedge fund	−643K −67.7%	306K	$330,800
Rbf Capital, LLC	−407K −44.9%	500K	$540,000
Voleon Capital Management LP Hedge fund	−393K Sold out	0	—
HRT Financial LP	−304K Sold out	0	—
Quadrature Capital Ltd Hedge fund	−293K −68.5%	134K	$144,979
Omers Administration Corp	−209K Sold out	0	—
UBS Group AG	−200K −6.1%	3.1M	$3.3M
Catalyst Funds Management Pty Ltd	−169K Sold out	0	—
State Of Wyoming	−166K −64.1%	93K	$100,294
Bank Of America Corp	−147K −51.3%	139K	$150,344
Mangrove Partners Im, LLC Hedge fund	−146K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Millennium Management LLC Hedge fund	−2.2M −70.9%	902K	$974,274
Castleknight Management LP Hedge fund	−1.4M Sold out	0	—
Marshall Wace, LLP Hedge fund	−1.1M Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−1.0M Sold out	0	—
Citadel Advisors LLC Hedge fund	−738K Sold out	0	—
Winton Group Ltd Hedge fund	−643K −67.7%	306K	$330,800
Voleon Capital Management LP Hedge fund	−393K Sold out	0	—
Quadrature Capital Ltd Hedge fund	−293K −68.5%	134K	$144,979
Mangrove Partners Im, LLC Hedge fund	−146K Sold out	0	—
Boothbay Fund Management, LLC Hedge fund	−96K −86.9%	15K	$15,684

New positions

largest by value

Institution	Shares	Value June 30, 2026
Adage Capital Partners Gp, L.L.C.Hedge fund	10.7M	$11.5M
First Trust Advisors LP	2.7M	$2.9M
Nierenberg Investment Management Company, LLC	1.4M	$1.5M
Plustick Management LLC	1.0M	$1.1M
Segall Bryant & Hamill, LLCActive manager	937K	$1M
Alyeska Investment Group, L.P.Hedge fund	714K	$771,577
American Century Companies IncActive manager	502K	$542,342
Nuveen, LLC	455K	$491,714
Sei Investments Co	197K	$212,727
Deutsche Bank Ag\	187K	$201,954

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Ameriprise Financial Inc	6.7M	$10.2M
Truffle Hound Capital, LLC	2.0M	$3.1M
Jane Street Group, LLC	1.5M	$2.3M
Castleknight Management LPHedge fund	1.4M	$2.1M
Marshall Wace, LLPHedge fund	1.1M	$1.7M
Arrowstreet Capital, Limited PartnershipHedge fund	1.0M	$1.5M
Citadel Advisors LLCHedge fund	738K	$1.1M
Voleon Capital Management LPHedge fund	393K	$601,275
HRT Financial LP	304K	$464,000
Omers Administration Corp	209K	$319,464

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 142
Ten largest holders: 66.2%
Index fund managers: 29.5%
Active managers and hedge funds: 28.8%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	23	15	13	8	+12.5M	+55.3%
Index fund managers	10	1	2	0	+19.1M	+112.0%
Other institutions	59	41	34	22	+12.5M	+32.2%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Ring Energy.

Only managers that filed a holdings report for both quarters are compared (172 here). 2 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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