Citadel reports 5.9% stake in GMR Solutions

GMR Solutions Inc. ownership disclosure: Citadel-affiliated entities and Kenneth Griffin report shared beneficial ownership of 3,196,590 shares, representing 5.9% of Class A common stock.

Rhea-AI Filing Summary

GMR Solutions Inc. ownership disclosure: Citadel-affiliated entities and Kenneth Griffin report shared beneficial ownership of 3,196,590 shares, representing 5.9% of Class A common stock. The filing cites 54,021,728 Shares outstanding as of May 14, 2026 for the percentage calculation.

The statement is a joint Schedule 13G filing that attributes shared voting and dispositive power to Citadel Advisors, Citadel Advisors Holdings LP and Citadel GP LLC, with Citadel Securities entities shown with de minimis holdings. Signature authority is via Seth Levy, including a power of attorney for Kenneth Griffin.

Insights

Institutional Ownership Specialist

Citadel group reports a passive sizable stake in GMR Solutions, disclosed on Schedule 13G.

The filing lists 3,196,590 shares under shared voting and dispositive power for Citadel Advisors, CAH and CGP, equating to 5.9% of the company's Class A shares using the issuer's outstanding count as of May 14, 2026. The percentage is explicitly tied to 54,021,728 Shares outstanding in the prospectus.

As a Schedule 13G, this is a passive ownership disclosure rather than an activist Schedule 13D; cash‑flow treatment and intent beyond passive ownership are not described in the excerpt. Subsequent filings would show any change in status.

Corporate Governance Analyst

Shared voting/dispositive power is concentrated among related Citadel entities and Kenneth Griffin.

The excerpt attributes identical shared voting and dispositive counts to Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC (each 3,196,590 shares), while Mr. Griffin is reported with 3,196,633 shares. Citadel Securities entities report 43 shares.

Because the filing is a joint Schedule 13G, it documents beneficial ownership and organizational links (CAH, CGP, CSGP) but does not assert control actions. Changes in ownership or voting arrangements would be disclosed in future statements if they occur.

Key Figures

Filing type: Schedule 13G Citadel shared holdings: 3,196,590 shares Kenneth Griffin holdings: 3,196,633 shares +3 more

6 metrics

Filing type Schedule 13G Joint beneficial ownership statement

Citadel shared holdings 3,196,590 shares Shared voting and dispositive power (Citadel Advisors, CAH, CGP)

Kenneth Griffin holdings 3,196,633 shares Reported beneficial ownership for Mr. Griffin

Citadel Securities holdings 43 shares Reported for Citadel Securities entities

Shares outstanding (used) 54,021,728 Shares As of <date>May 14, 2026</date> per issuer prospectus

Ownership percent 5.9% Percentage of class for 3,196,590 shares

Key Terms

Schedule 13G, Shared dispositive power, Beneficially own

3 terms

Schedule 13G regulatory

"joint <b>Schedule 13G</b> filing that attributes shared voting"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Shared dispositive power regulatory

"Shared Dispositive Power 3,196,590.00"

Beneficially own regulatory

"may be deemed to beneficially own 3,196,590 Shares"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Citadel report in GMR Solutions (GMRS)?

Citadel-affiliated filers report shared beneficial ownership of 3,196,590 shares, equal to 5.9% of Class A common stock based on the issuer's outstanding count of 54,021,728 shares as of May 14, 2026.

Who are the reporting persons on the Schedule 13G for GMRS?

The joint filing is by Citadel Advisors LLC, Citadel Advisors Holdings LP, Citadel GP LLC, Citadel Securities entities and Kenneth Griffin, with Seth Levy signing as authorized signatory and attorney-in-fact for Mr. Griffin.

Does the filing indicate active control or passive ownership?

The statement is filed on Schedule 13G, which typically reflects passive investment reporting. The excerpt does not state any activist intent or control measures; it reports voting and dispositive power amounts without operational directives.

How was the 5.9% ownership percentage calculated?

The percentage is stated as based on an issuer prospectus count of 54,021,728 Shares outstanding as of May 14, 2026, which the filing cites as the basis for the reported 5.9% figures.

What voting power do the reporting persons hold in GMRS?

The filing shows 0 sole voting power and 3,196,590 shared voting power for Citadel Advisors, CAH and CGP; Mr. Griffin is reported with 3,196,633 shared voting power in the excerpt.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/29/2026 - 06:08 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

GMR Solutions Inc.

(Name of Issuer)

Class A common stock, par value $0.0001 per share (the "Shares")

(Title of Class of Securities)

38013D106

(CUSIP Number)

05/21/2026

(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): 38013D106

1

Names of Reporting Persons

Citadel Advisors 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 3,196,590.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,196,590.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,196,590.00

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)

5.9 %

12

Type of Reporting Person (See Instructions)

IA, HC, OO

Comment for Type of Reporting Person: The percentages reported in this Schedule 13G are based upon 54,021,728 Shares outstanding as of May 14, 2026 (according to the issuer's prospectus as filed with the Securities and Exchange Commission on May 14, 2026). Except as described in the preceding sentence, all Shares for the holdings of the reporting persons reported in this Schedule 13G are as of the opening of the market on May 29, 2026.

SCHEDULE 13G

CUSIP Number(s): 38013D106

1

Names of Reporting Persons

Citadel Advisors Holdings LP

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 3,196,590.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,196,590.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,196,590.00

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)

5.9 %

12

Type of Reporting Person (See Instructions)

HC, PN

SCHEDULE 13G

CUSIP Number(s): 38013D106

1

Names of Reporting Persons

Citadel GP 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 3,196,590.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,196,590.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,196,590.00

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)

5.9 %

12

Type of Reporting Person (See Instructions)

HC, OO

SCHEDULE 13G

CUSIP Number(s): 38013D106

1

Names of Reporting Persons

Citadel Securities 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 43.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 43.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

43.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

BD, OO

SCHEDULE 13G

CUSIP Number(s): 38013D106

1

Names of Reporting Persons

Citadel Securities Group LP

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 43.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 43.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

43.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

HC, PN

SCHEDULE 13G

CUSIP Number(s): 38013D106

1

Names of Reporting Persons

Citadel Securities GP 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 43.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 43.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

43.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

HC, OO

SCHEDULE 13G

CUSIP Number(s): 38013D106

1

Names of Reporting Persons

Kenneth Griffin

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 3,196,633.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,196,633.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,196,633.00

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)

5.9 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GMR Solutions Inc.
(b)	Address of issuer's principal executive offices: 4400 Hwy 121, Suite 700, Lewisville, TX, 75056
Item 2.
(a)	Name of person filing: This Schedule 13G is being jointly filed by Citadel Advisors LLC ("Citadel Advisors"), Citadel Advisors Holdings LP ("CAH"), Citadel GP LLC ("CGP"), Citadel Securities LLC ("Citadel Securities"), Citadel Securities Group LP ("CALC4"), Citadel Securities GP LLC ("CSGP") and Mr. Kenneth Griffin (collectively with Citadel Advisors, CAH, CGP, Citadel Securities, CALC4 and CSGP, the "Reporting Persons") with respect to the Shares of the above-named issuer owned by Citadel Multi-Strategy Equities Master Fund Ltd., a Cayman Islands company ("CM"), and Citadel Securities. Such owned Shares may include other instruments exercisable for or convertible into Shares. Citadel Advisors is the portfolio manager for CM. CAH is the sole member of Citadel Advisors. CGP is the general partner of CAH. CALC4 is the non-member manager of Citadel Securities. CSGP is the general partner of CALC4. Mr. Griffin is the President and Chief Executive Officer of CGP, and owns a controlling interest in CGP and CSGP. The filing of this statement shall not be construed as an admission that any of the Reporting Persons is the beneficial owner of any securities covered by the statement other than the securities actually owned by such person (if any).
(b)	Address or principal business office or, if none, residence: The address of each of the Reporting Persons is 830 Brickell Plaza, Miami, Florida 33131.
(c)	Citizenship: Each of Citadel Advisors, CGP, Citadel Securities and CSGP is organized as a limited liability company under the laws of the State of Delaware. Each of CALC4 and CAH is organized as a limited partnership under the laws of the State of Delaware. Mr. Griffin is a U.S. citizen.
(d)	Title of class of securities: Class A common stock, par value $0.0001 per share (the "Shares")
(e)	CUSIP Number(s): 38013D106
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: 1. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC may be deemed to beneficially own 3,196,590 Shares. 2. Citadel Securities LLC may be deemed to beneficially own 43 Shares. 3. Each of Citadel Securities Group LP and Citadel Securities GP LLC may be deemed to beneficially own 43 Shares. 4. Mr. Griffin may be deemed to beneficially own 3,196,633 Shares.
(b)	Percent of class: 1. The number of Shares that each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC may be deemed to beneficially own constitutes 5.9% of the Shares outstanding. 2. The number of Shares that Citadel Securities LLC may be deemed to beneficially own constitutes 0.0% of the Shares outstanding. 3. The number of Shares that each of Citadel Securities Group LP and Citadel Securities GP LLC may be deemed to beneficially own constitutes 0.0% of the Shares outstanding. 4. The number of Shares that Mr. Griffin may be deemed to beneficially own constitutes 5.9% of the Shares outstanding.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 0 2. Citadel Securities LLC: 0 3. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 0 4. Mr. Griffin: 0
	(ii) Shared power to vote or to direct the vote: 1. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 3,196,590 2. Citadel Securities LLC: 43 3. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 43 4. Mr. Griffin: 3,196,633
	(iii) Sole power to dispose or to direct the disposition of: 1. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 0 2. Citadel Securities LLC: 0 3. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 0 4. Mr. Griffin: 0
	(iv) Shared power to dispose or to direct the disposition of: 1. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 3,196,590 2. Citadel Securities LLC: 43 3. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 43 4. Mr. Griffin: 3,196,633
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 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.

Citadel Advisors LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	05/29/2026

Citadel Advisors Holdings LP

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	05/29/2026

Citadel GP LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	05/29/2026

Citadel Securities LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	05/29/2026

Citadel Securities Group LP

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	05/29/2026

Citadel Securities GP LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	05/29/2026

Kenneth Griffin

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, attorney-in-fact*
Date:	05/29/2026

Comments accompanying signature: * Seth Levy is signing on behalf of Kenneth Griffin as attorney-in-fact pursuant to a power of attorney previously filed with the Securities and Exchange Commission, and hereby incorporated by reference herein. The power of attorney was filed as an attachment to a filing by Citadel Advisors LLC on Schedule 13G for Allakos Inc. on October 13, 2023.

Exhibit Information

Exhibit 99.1 - Joint Filing Agreement