Magnetar funds disclose 5.79% Invest Green (IGAC) stake in 13G filing

Rhea-AI Filing Summary

Invest Green Acquisition Corp received a large ownership disclosure from Magnetar-affiliated funds. As of December 31, 2025, Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman reported beneficial ownership of 1,000,000 Class A ordinary shares.

These shares represent 5.79% of Invest Green Acquisition Corp’s outstanding Class A shares, based on 17,250,000 shares outstanding. The filing states the position is held across several Magnetar-managed funds and that the securities were acquired and are held in the ordinary course of business, not for the purpose of changing or influencing control of the company.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Invest Green Acquisition Corp

(Name of Issuer)

Class A ordinary shares, par value $0.0001

(Title of Class of Securities)

G4924G128

(CUSIP Number)

12/31/2025

(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)

SCHEDULE 13G

CUSIP No. G4924G128

1

Names of Reporting Persons

MAGNETAR FINANCIAL 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 1,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,000,000.00

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)

5.79 %

12

Type of Reporting Person (See Instructions)

IA, OO

SCHEDULE 13G

CUSIP No. G4924G128

1

Names of Reporting Persons

MAGNETAR CAPITAL PARTNERS 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 1,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,000,000.00

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)

5.79 %

12

Type of Reporting Person (See Instructions)

HC, PN

SCHEDULE 13G

CUSIP No. G4924G128

1

Names of Reporting Persons

SUPERNOVA 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 1,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,000,000.00

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)

5.79 %

12

Type of Reporting Person (See Instructions)

HC, OO

SCHEDULE 13G

CUSIP No. G4924G128

1

Names of Reporting Persons

DAVID J. SNYDERMAN

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 1,000,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,000,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,000,000.00

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)

5.79 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Invest Green Acquisition Corp
(b)	Address of issuer's principal executive offices: 19215 SE 24th Street, Suite #106-159, C/O Invest Green Acquisition Corporation, Camas, WA 98607
Item 2.
(a)	Name of person filing: This statement is filed on behalf of each of the following person (collectively, the "Reporting Persons"): i) Magnetar Financial LLC ("Magnetar Financial"); ii) Magnetar Capital Partners LP ("Magnetar Capital Partners"); iii) Supernova Management LLC ("Supernova Management"); and iv) David J. Snyderman ("Mr. Snyderman"). This statement relates to the Shares (as defined herein) held for Magnetar Constellation Master Fund, Ltd ("Constellation Master Fund"), Magnetar Xing He Master Fund Ltd ("Xing He Master Fund"), Purpose Alternative Credit Fund Ltd ("Purpose Credit Fund"), all Cayman Islands exempted companies; Magnetar Structured Credit Fund, LP ("Structured Credit Fund"), a Delaware limited partnership; Magnetar Alpha Star Fund LLC ("Alpha Star Fund"), Magnetar Lake Credit Fund LLC ("Lake Credit Fund"), Purpose Alternative Credit Fund - T LLC ("Purpose Credit Fund - T"), Magnetar Waterfront Series A LLC ("Waterfront Series A Fund"), all Delaware limited liability companies; collectively (the "Magnetar Funds"). Magnetar Financial serves as the investment adviser to the Magnetar Funds, and as such, Magnetar Financial exercises voting and investment power over the Shares held for the Magnetar Funds' accounts. Magnetar Capital Partners serves as the sole member and parent holding company of Magnetar Financial. Supernova Management is the general partner of Magnetar Capital Partners. The administrative manager of Supernova Management is Mr. Snyderman.
(b)	Address or principal business office or, if none, residence: The address of the principal business office of each of Magnetar Financial, Magnetar Capital Partners, Supernova Management, and Mr. Snyderman is 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201.
(c)	Citizenship: Place of Organization. i) Magnetar Financial is a Delaware limited liability company; ii) Magnetar Capital Partners is a Delaware limited partnership; iii) Supernova Management is a Delaware limited liability company; and iv) Mr. Snyderman is a citizen of the United States of America.
(d)	Title of class of securities: Class A ordinary shares, par value $0.0001
(e)	CUSIP No.: G4924G128
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: As of December 31, 2025, each of Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman held 1,000,000 Shares. The amount consists of (A) 220,000 Shares held for the account of Constellation Master Fund; (B) 10,000 Shares held for the account of Lake Credit Fund; (C) 230,000 Shares held for the account of Structured Credit Fund; (D) 190,000 Shares held for the account of Xing He Master Fund; (E) 150,000 Shares held for the account of Alpha Star Fund; (F) 140,000 Shares held for the account of Purpose Credit Fund; (G) 30,000 Shares held for the account of Magnetar Waterfront Series A LLC; and (H) 30,000 Shares held for the account of Purpose Credit Fund - T. The Shares held by the Magnetar Funds represent approximately 5.79% of the total number of Shares outstanding (calculated pursuant to Rule 13d-3(d)(1)(i)) of the outstanding shares of the Issuer).
(b)	Percent of class: As of December 31, 2025, each of the Reporting Persons were deemed to be the beneficial owner constituting approximately 5.79% of the total number of shares outstanding (based upon the information provided by the Issuer there are approximately 17,250,000 Shares outstanding).
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 1,000,000
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 1,000,000
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.

MAGNETAR FINANCIAL LLC

Signature:	/s/ Hayley Stein
Name/Title:	Name: Hayley Stein, Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:	02/17/2026

MAGNETAR CAPITAL PARTNERS LP

Signature:	/s/ Hayley Stein
Name/Title:	Name: Hayley Stein, Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:	02/17/2026

SUPERNOVA MANAGEMENT LLC

Signature:	/s/ Hayley Stein
Name/Title:	Name: Hayley Stein, Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:	02/17/2026

DAVID J. SNYDERMAN

Signature:	/s/ Hayley Stein
Name/Title:	Name: Hayley Stein, Title: Attorney-in-fact for David J. Snyderman, Administrative Manager of Supernova Management LLC
Date:	02/17/2026

Comments accompanying signature: MAGNETAR FINANCIAL LLC BY: Magnetar Capital Partners LP, its Sole Member BY: Supernova Management LLC, its General Partner MAGNETAR CAPITAL PARTNERS LP By: Supernova Management LLC, its General Partner

Exhibit Information

99.1 Joint Filing Agreement, dated as of February 17, 2026, among the Reporting Persons. 99.2 Power of Attorney, dated as of December 22, 2022 filed by the Reporting Persons on February 17, 2026.

FAQ

What ownership stake in IGAC did Magnetar report on this Schedule 13G?

Magnetar-related entities reported owning 1,000,000 Class A shares of Invest Green Acquisition Corp. This stake represents 5.79% of the company’s outstanding Class A shares, based on 17,250,000 shares outstanding as of December 31, 2025.

Which Magnetar entities are reporting beneficial ownership in IGAC?

The reporting persons are Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman. They report shared voting and dispositive power over 1,000,000 Class A shares of Invest Green Acquisition Corp held across multiple Magnetar funds.

How is Magnetar’s 1,000,000-share IGAC position allocated among its funds?

The position includes 220,000 shares for Constellation Master Fund, 230,000 for Structured Credit Fund, 190,000 for Xing He Master Fund, 150,000 for Alpha Star Fund, 140,000 for Purpose Credit Fund, and smaller blocks across other named Magnetar funds.

Did Magnetar state any intent to influence control of Invest Green Acquisition Corp?

The reporting persons certified the IGAC shares were acquired and held in the ordinary course of business. They further stated the holdings were not acquired and are not held for the purpose of changing or influencing control of the issuer.

What voting and dispositive powers does Magnetar report over IGAC shares?

Each reporting person discloses no sole voting or dispositive power, but shared voting and shared dispositive power over 1,000,000 Class A shares. This reflects Magnetar’s role as investment adviser and managing entities for the various Magnetar funds holding the position.

Where are the Magnetar reporting entities primarily based for this IGAC stake?

Magnetar Financial, Magnetar Capital Partners, Supernova Management, and David J. Snyderman list their principal business office as 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201. The underlying Magnetar funds are organized in Delaware and the Cayman Islands, as specified.