AQR reports 5.16% stake in FG Imperii Acquisition

Rhea-AI Filing Summary

AQR affiliate group reports beneficial ownership of 5.16% in FG Imperii Acquisition Corp. The filers — AQR Capital Management, LLC, AQR Capital Management Holdings, LLC and AQR Arbitrage, LLC — state combined beneficial ownership of 1,188,640 shares of Class A Ordinary Shares (CUSIP G3R41C102) as of 03/31/2026. The filing is a Schedule 13G and shows shared voting and shared dispositive power over those shares. The signature block is dated 05/13/2026.

Insights

Corporate Governance Analyst

Institutional stake disclosed with shared voting and dispositive power.

The Schedule 13G lists 1,188,640 shares representing 5.16% of the Class A ordinary shares as of 03/31/2026. The filing attributes shared voting and shared dispositive power to the three AQR entities, indicating collective control rather than sole authority.

Filing classification and signature date (05/13/2026) are present; subsequent filings would show any change in percentage or control status.

Institutional Ownership Specialist

Passive institutional holding disclosed under Schedule 13G format.

The schedule format and the combined 5.16% figure are consistent with passive or qualifying institutional reporting. The exhibit notes parent/subsidiary relationships among the AQR entities, clarifying attribution of the position across affiliates.

Share counts and power breakdowns are explicit: shared voting and shared dispositive power of 1,188,640 shares.

Key Figures

Form type: Schedule 13G Shares beneficially owned: 1,188,640 shares Percent of class: 5.16% +4 more

7 metrics

Form type Schedule 13G Ownership disclosure filing

Shares beneficially owned 1,188,640 shares Class A Ordinary Shares

Percent of class 5.16% as of 03/31/2026

CUSIP G3R41C102 Class A Ordinary Shares

Shared voting power 1,188,640 shares reported for each AQR filer

Shared dispositive power 1,188,640 shares reported for each AQR filer

Reporting dates 03/31/2026; 05/13/2026 ownership as of and signature dates

Key Terms

Schedule 13G, Beneficial ownership, Shared dispositive power, Shared voting power

4 terms

Schedule 13G regulatory

"The filing is a Schedule 13G and shows 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.

Beneficial ownership regulatory

"Amount beneficially owned: 1,188,640 (b) Percent of class: 5.16 %"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Shared dispositive power regulatory

"Shared Dispositive Power 1,188,640.00"

Shared voting power regulatory

"Shared Voting Power 1,188,640.00"

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.

FAQ

What stake did AQR report in FG Imperii Acquisition Corp. (FGII)?

AQR reported beneficial ownership of 1,188,640 Class A shares, equal to 5.16% of the class as stated in the filing. The shares are identified by CUSIP G3R41C102.

Which AQR entities filed the Schedule 13G for FGII?

AQR Capital Management, LLC, AQR Capital Management Holdings, LLC, and AQR Arbitrage, LLC jointly filed the Schedule 13G and executed the exhibit attestation.

What voting and dispositive powers does AQR report over the shares?

The filing states 0 sole voting and 1,188,640 shared voting power, and likewise 0 sole dispositive and 1,188,640 shared dispositive power for the AQR entities.

As of what date is the ownership percentage reported?

The ownership position is presented as of 03/31/2026 in the filing, with signature dates recorded as 05/13/2026 on the Schedule 13G.

How are the AQR entities related according to the filing?

The exhibit states that AQR Capital Management, LLC is a wholly owned subsidiary of AQR Capital Management Holdings, LLC, and AQR Arbitrage, LLC is deemed controlled by AQR Capital Management, LLC.

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Accepted by SEC EDGAR 05/13/2026 - 11:00 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

FG Imperii Acquisition Corp.

(Name of Issuer)

Class A Ordinary Shares

(Title of Class of Securities)

G3R41C102

(CUSIP Number)

03/31/2026

(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): G3R41C102

1

Names of Reporting Persons

AQR 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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,188,640.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,188,640.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,188,640.00

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)

5.16 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): G3R41C102

1

Names of Reporting Persons

AQR 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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,188,640.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,188,640.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,188,640.00

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)

5.16 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): G3R41C102

1

Names of Reporting Persons

AQR Arbitrage, 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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,188,640.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,188,640.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,188,640.00

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)

5.16 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: FG Imperii Acquisition Corp.
(b)	Address of issuer's principal executive offices: 104 S. WALNUT STREET, UNIT 1A, ITASCA, ILLINOIS 60143
Item 2.
(a)	Name of person filing: AQR Capital Management, LLC AQR Capital Management Holdings, LLC AQR Arbitrage, LLC
(b)	Address or principal business office or, if none, residence: ONE GREENWICH PLAZA SUITE 130 Greenwich, Connecticut 06830
(c)	Citizenship: AQR Capital Management, LLC - UNITED STATES AQR Capital Management Holdings, LLC - UNITED STATES AQR Arbitrage, LLC - UNITED STATES
(d)	Title of class of securities: Class A Ordinary Shares
(e)	CUSIP Number(s): G3R41C102
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: 1,188,640
(b)	Percent of class: 5.16 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: AQR Capital Management, LLC - 0 AQR Capital Management Holdings, LLC - 0 AQR Arbitrage, LLC - 0
	(ii) Shared power to vote or to direct the vote: AQR Capital Management, LLC - 1,188,640 AQR Capital Management Holdings, LLC - 1,188,640 AQR Arbitrage, LLC - 1,188,640
	(iii) Sole power to dispose or to direct the disposition of: AQR Capital Management, LLC - 0 AQR Capital Management Holdings, LLC - 0 AQR Arbitrage, LLC - 0
	(iv) Shared power to dispose or to direct the disposition of: AQR Capital Management, LLC - 1,188,640 AQR Capital Management Holdings, LLC - 1,188,640 AQR Arbitrage, LLC - 1,188,640
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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Item 2(a) above.
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.

AQR Capital Management, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	05/13/2026

AQR Capital Management Holdings, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	05/13/2026

AQR Arbitrage, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	05/13/2026

Exhibit Information

AQR Capital Management Holdings, LLC, AQR Capital Management, LLC, and AQR Arbitrage, LLC hereby agree that this Schedule 13G is filed on behalf of each of the parties. AQR Capital Management, LLC is a wholly owned subsidiary of AQR Capital Management Holdings, LLC. AQR Arbitrage, LLC is deemed to be controlled by AQR Capital Management, LLC.