AQR-linked fund sells 4,619 IB Acquisition Corp. (IBAC) shares

Rhea-AI Filing Summary

AQR-related investment entities reported an open-market sale of IB Acquisition Corp. common stock. An account identified as AQR DELTA Master Account, L.P. sold 4,619 shares of common stock on 2026-03-20 at $10.75 per share in an indirect transaction. After this sale, that indirect account held 0 shares of IB Acquisition Corp.

Insider Trade Summary

Net Seller: 4,619 shares ($49,654)

Net Sell 1 txn

Insider AQR Capital Management Holdings, LLC, AQR CAPITAL MANAGEMENT LLC, AQR Arbitrage LLC

Role 10% Owner | 10% Owner | 10% Owner

Sold 4,619 shs ($50K)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,619	$10.75	$50K

Holdings After Transaction: Common Stock — 0 shares (Indirect, AQR DELTA Master Account, L.P.(1)(2))

Footnotes (1)

1. 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. AQR Capital Management, LLC and AQR Arbitrage, LLC act as investment manager to AQR DELTA Master Account, L.P. AQR Capital Management III, LLC is the general partner of AQR DELTA Master Account, L.P.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

AQR Capital Management Holdings, LLC

(Last) (First) (Middle)

ONE GREENWICH PLAZA

SUITE 130

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
IB Acquisition Corp. [ IBAC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/20/2026		S		4,619	D	$10.75	0	I	AQR DELTA Master Account, L.P.(1)(2)(1)(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

AQR Capital Management Holdings, LLC

(Last) (First) (Middle)

ONE GREENWICH PLAZA

SUITE 130

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

AQR CAPITAL MANAGEMENT LLC

(Last) (First) (Middle)

ONE GREENWICH PLAZA

SUITE 130

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

AQR Arbitrage LLC

(Last) (First) (Middle)

ONE GREENWICH PLAZA

SUITE 130

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. 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. AQR Capital Management, LLC and AQR Arbitrage, LLC act as investment manager to AQR DELTA Master Account, L.P.

2. AQR Capital Management III, LLC is the general partner of AQR DELTA Master Account, L.P.

	/s/ AQR CAPITAL MANAGEMENT HOLDINGS, LLC, /s/ Henry Parkin, Authorized Signatory	03/24/2026
	/s/ AQR CAPITAL MANAGEMENT, LLC, /s/ Henry Parkin, Authorized Signatory	03/24/2026
	/s/ AQR ARBITRAGE, LLC, /s/ Henry Parkin, Authorized Signatory	03/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did IB Acquisition Corp. (IBAC) report?

IB Acquisition Corp. reported an insider-related sale of common stock. An indirectly held account, AQR DELTA Master Account, L.P., sold 4,619 shares of IB Acquisition Corp. common stock in an open-market transaction at $10.75 per share.

Who was involved in the IBAC insider sale reported on March 20, 2026?

The transaction involved AQR-related investment entities. AQR Capital Management Holdings, LLC, AQR Capital Management LLC, and AQR Arbitrage LLC reported a sale executed through AQR DELTA Master Account, L.P., which they manage as investment advisers and related entities.

How many IB Acquisition Corp. (IBAC) shares were sold in the AQR-related trade?

The account sold 4,619 shares of IB Acquisition Corp. common stock. This non-derivative transaction was classified as an open-market sale at a price of $10.75 per share, according to the Form 4 transaction details and summary data.

What price did the AQR-related account receive for IBAC shares sold?

The reported sale price was $10.75 per IB Acquisition Corp. share. The Form 4 indicates that 4,619 common shares were sold in an open-market transaction at this per-share price by the indirectly held AQR DELTA Master Account, L.P.

What was the IB Acquisition Corp. share position after the AQR-related sale?

The indirectly held account reported holding 0 shares afterward. The Form 4 shows total shares following the transaction for the account AQR DELTA Master Account, L.P. as 0.0000, indicating it no longer held IB Acquisition Corp. common stock.

How is AQR DELTA Master Account, L.P. related to AQR Capital Management in the IBAC filing?

AQR Capital Management entities act as investment managers to AQR DELTA Master Account, L.P. Footnotes explain that AQR Capital Management, LLC and AQR Arbitrage, LLC manage the account, and AQR Capital Management III, LLC is its general partner.