Ring Energy (REI): PEAK6 group discloses 17.1M-share, 6.6% ownership position

Rhea-AI Filing Summary

Ring Energy, Inc. has disclosed a significant shareholder group led by PEAK6 entities and individuals Matthew Hulsizer and Jennifer Just. These reporting persons collectively beneficially own 17,079,382 shares of Ring Energy common stock, representing 6.6% of the outstanding class.

For each reporting person, the disclosure lists 0 shares with sole voting and dispositive power and 17,079,382 shares with shared voting and shared dispositive power. The ownership is held through a chain of Delaware entities, with PEAK6 Capital Management LLC wholly owned, directly or indirectly, by other PEAK6 entities in which Hulsizer and Just are the majority ultimate beneficial owners.

Key Figures

Beneficial ownership: 17,079,382 shares Percent of class: 6.6% Sole voting power: 0 shares +3 more

6 metrics

Beneficial ownership 17,079,382 shares Shares of Ring Energy common stock beneficially owned by each reporting person

Percent of class 6.6% Portion of Ring Energy common stock represented by 17,079,382 shares

Sole voting power 0 shares Shares over which each reporting person has sole voting power

Shared voting power 17,079,382 shares Shares over which each reporting person has shared voting power

Sole dispositive power 0 shares Shares over which each reporting person has sole dispositive power

Shared dispositive power 17,079,382 shares Shares over which each reporting person has shared dispositive power

Key Terms

beneficially owned, shared voting power, shared dispositive power, percent of class

4 terms

beneficially owned financial

"Amount beneficially owned: PEAK6 Capital Management LLC is wholly owned..."

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"Shared Voting Power 17,079,382.00 7 | Sole Dispositive Power 0.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 17,079,382.00 9 17,079,382.00"

percent of class financial

"11 6.6 % 12"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

How many Ring Energy (REI) shares are beneficially owned by the PEAK6 group?

The PEAK6 group and related individuals beneficially own 17,079,382 shares of Ring Energy common stock. This entire amount is reported as subject to shared voting and shared dispositive power by each reporting person.

What percentage of Ring Energy (REI) does the PEAK6 group own?

The PEAK6 group reports beneficial ownership of 6.6% of Ring Energy’s outstanding common stock. This percentage is based on their reported 17,079,382 shares relative to the company’s total shares outstanding.

Does the PEAK6 group have sole or shared voting power over Ring Energy (REI) shares?

Each PEAK6 reporting person reports 0 shares with sole voting power and 17,079,382 shares with shared voting power. They similarly report no sole dispositive power and the same number under shared dispositive power.

Who are the individuals behind the PEAK6 ownership in Ring Energy (REI)?

The filing identifies Matthew Hulsizer and Jennifer Just as majority direct and/or indirect ultimate beneficial owners of key PEAK6 entities. Both are U.S. citizens and report shared voting and dispositive power over 17,079,382 shares.

Which entities in the PEAK6 structure are listed as Ring Energy (REI) reporting persons?

Reporting persons include PEAK6 Capital Management LLC, PEAK6 Partners LLC, PEAK6 LLC, PEAK6 Investments LLC, PEAK6 Group LLC, and PEAK6 Capital Management Holdings LLC, along with individuals Matthew Hulsizer and Jennifer Just.

Where are the PEAK6 reporting entities for Ring Energy (REI) organized?

The PEAK6 entities listed—such as PEAK6 Capital Management LLC, PEAK6 LLC, PEAK6 Investments LLC, PEAK6 Group LLC, and PEAK6 Capital Management Holdings LLC—are each organized under the laws of Delaware.

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Available on EDGAR 08/13/2026 - 08:41 PM Accepted by SEC EDGAR 08/13/2026 - 08:41 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

RING ENERGY, INC.

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

76680V108

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

PEAK6 LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

PEAK6 Capital Management LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

PEAK6 Partners LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

PEAK6 Investments LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

PEAK6 Group LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

PEAK6 Capital Management Holdings LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

Matthew Hulsizer

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

CUSIP Number(s): 76680V108

1

Names of Reporting Persons

Jennifer Just

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,079,382.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,079,382.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,079,382.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.6 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: RING ENERGY, INC.
(b)	Address of issuer's principal executive offices: 1725 HUGHES LANDING BLVD., SUITE 900, THE WOODLANDS, TEXAS, 77380
Item 2.
(a)	Name of person filing: PEAK6 Capital Management LLC PEAK6 Partners LLC PEAK6 LLC PEAK6 Investments LLC PEAK6 Group LLC PEAK6 Capital Management Holdings LLC Matthew Hulsizer Jennifer Just
(b)	Address or principal business office or, if none, residence: PEAK6 Capital Management LLC - 141 W. Jackson Blvd., Suite 500, Chicago IL 60604 PEAK6 Partners LLC - 2010 E. 6th St., Austin TX 78702 PEAK6 LLC - 2010 E. 6th St., Austin TX 78702 PEAK6 Investments LLC - 2010 E. 6th St., Austin TX 78702 PEAK6 Group LLC - 2010 E. 6th St., Austin TX 78702 PEAK6 Capital Management Holdings LLC - 141 W. Jackson Blvd., Suite 500, Chicago IL 60604 Matthew Hulsizer - 2010 E. 6th St., Austin TX 78702 Jennifer Just- 2010 E. 6th St., Austin TX 78702
(c)	Citizenship: PEAK6 Capital Management LLC, Delaware PEAK6 LLC, Delaware PEAK6 Investments LLC, Delaware PEAK6 Group LLC, Delaware PEAK6 Capital Management Holdings LLC, Delaware Matthew Hulsizer, U.S. Citizen Jennifer Just, U.S. Citizen
(d)	Title of class of securities: Common Stock, par value $0.001
(e)	CUSIP Number(s): 76680V108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: PEAK6 Capital Management LLC is wholly owned by PEAK6 Capital Management Holdings LLC, which is owned by PEAK6 Group LLC, which is owned by PEAK6 Investments LLC, which is majority owned by PEAK6 Partners LLC and minority owned by PEAK6 LLC. Matthew Hulsizer and Jennifer Just are the majority direct and/or indirect ultimate beneficial owners of PEAK6 Partners LLC and PEAK6 LLC. The information specified in items 4(a) - (c) is provided in rows 5 through 11 of the cover pages for each Reporting Person and is incorporated by reference.
(b)	Percent of class: The information specified in items 4(a) - (c) is provided in rows 5 through 11 of the cover pages for each Reporting Person and is incorporated by reference.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information specified in items 4(a) - (c) is provided in rows 5 through 11 of the cover pages for each Reporting Person and is incorporated by reference.
	(ii) Shared power to vote or to direct the vote: The information specified in items 4(a) - (c) is provided in rows 5 through 11 of the cover pages for each Reporting Person and is incorporated by reference.
	(iii) Sole power to dispose or to direct the disposition of: The information specified in items 4(a) - (c) is provided in rows 5 through 11 of the cover pages for each Reporting Person and is incorporated by reference.
	(iv) Shared power to dispose or to direct the disposition of: The information specified in items 4(a) - (c) is provided in rows 5 through 11 of the cover pages for each Reporting Person and is incorporated by reference.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

PEAK6 LLC

Signature:	Matthew Hulsizer
Name/Title:	Manager
Date:	08/13/2026

PEAK6 Capital Management LLC

Signature:	Tom Simpson
Name/Title:	Chief Executive Officer
Date:	08/13/2026

PEAK6 Partners LLC

Signature:	Matthew Hulsizer
Name/Title:	Manager
Date:	08/13/2026

PEAK6 Investments LLC

Signature:	Jay Coppoletta
Name/Title:	Chief Corp. Dev & Legal Officer
Date:	08/13/2026

PEAK6 Group LLC

Signature:	Jay Coppoletta
Name/Title:	Chief Corp. Dev & Legal Officer
Date:	08/13/2026

PEAK6 Capital Management Holdings LLC

Signature:	Jay Coppoletta
Name/Title:	Chief Corp. Dev & Legal Officer
Date:	08/13/2026

Matthew Hulsizer

Signature:	Matthew Hulsizer
Name/Title:	Individual
Date:	08/13/2026

Jennifer Just

Signature:	Jennifer Just
Name/Title:	Individual
Date:	08/13/2026

Exhibit Information

Exhibit A attached to Cover