AQR discloses 6.61% GigCapital8 (GIW) ownership stake

Rhea-AI Filing Summary

AQR Capital Management and its affiliates disclosed a significant ownership stake in GigCapital8 Corp. The filing reports beneficial ownership of 1,694,769 Class A ordinary shares as of 12/31/2025, representing 6.61% of the outstanding class.

AQR Capital Management, LLC, AQR Capital Management Holdings, LLC, and AQR Arbitrage, LLC share voting and dispositive power over these shares and report no sole voting or dispositive authority. They state the position is held in the ordinary course of business and not for the purpose of changing or influencing control of GigCapital8.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

GigCapital8 Corp.

(Name of Issuer)

Class A ordinary shares, par value $0.0001 per share

(Title of Class of Securities)

G3864J100

(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. G3864J100

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 1,694,769.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,694,769.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,694,769.00

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)

6.61 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP No. G3864J100

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 1,694,769.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,694,769.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,694,769.00

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)

6.61 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP No. G3864J100

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 1,694,769.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,694,769.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,694,769.00

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)

6.61 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GigCapital8 Corp.
(b)	Address of issuer's principal executive offices: 1731 EMBARCADERO RD., SUITE 200, PALO ALTO, CALIFORNIA 94303
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, par value $0.0001 per share
(e)	CUSIP No.: G3864J100
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: 1,694,769
(b)	Percent of class: 6.61 %
(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 - 1,694,769 AQR Capital Management Holdings, LLC - 1,694,769 AQR Arbitrage, LLC - 1,694,769
	(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 - 1,694,769 AQR Capital Management Holdings, LLC - 1,694,769 AQR Arbitrage, LLC - 1,694,769
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:	02/12/2026

AQR Capital Management Holdings, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	02/12/2026

AQR Arbitrage, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	02/12/2026

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.

FAQ

What stake in GigCapital8 Corp. (GIW) does AQR report on this Schedule 13G?

AQR reports beneficial ownership of 1,694,769 GigCapital8 Class A shares, representing 6.61% of the class. This gives AQR and its affiliates a notable but minority institutional position in the company’s publicly traded equity.

Which AQR entities are listed as reporting persons for GigCapital8 (GIW)?

The filing names AQR Capital Management, LLC, AQR Capital Management Holdings, LLC, and AQR Arbitrage, LLC as reporting persons. All three entities share voting and dispositive power over the same 1,694,769 Class A ordinary shares in GigCapital8 Corp.

How much voting power does AQR have over GigCapital8 (GIW) shares?

AQR and its affiliates report shared voting power over 1,694,769 Class A shares and no sole voting power. They also report shared dispositive power over the same shares, indicating coordinated control within the AQR entities over this 6.61% stake.

Is AQR’s GigCapital8 (GIW) position intended to influence control of the company?

AQR states the GigCapital8 securities were acquired and are held in the ordinary course of business. The filing specifies they were not acquired or held to change or influence control of the issuer, apart from limited activities linked to proxy nomination rules.

What class of GigCapital8 (GIW) securities does AQR’s Schedule 13G cover?

The disclosure covers GigCapital8 Corp. Class A ordinary shares with a par value of $0.0001 per share. The securities are identified by CUSIP G3864J100, and AQR’s beneficial ownership relates specifically to this class of equity.

What is the event date for AQR’s GigCapital8 (GIW) ownership disclosure?

The date of the event requiring this ownership disclosure is listed as 12/31/2025. That date is the reference point for calculating AQR’s beneficial ownership of 1,694,769 GigCapital8 Class A shares, equal to 6.61% of the class.