Director at StoneBridge Acquisition II (APAC) awarded 25,000 Class B shares

Rhea-AI Filing Summary

StoneBridge Acquisition II Corp. granted director Mahboob Subuhani Mohamed Mohideen an equity award of 25,000 Class B Ordinary Shares on February 5, 2026, for his service on the board and its committees. The shares were transferred from the company’s sponsor, StoneBridge Acquisition Sponsor II LLC.

The 25,000 Class B Ordinary Shares were received at no stated purchase price and are reported as derivative securities. These Class B shares will automatically convert into 25,000 Class A Ordinary Shares on a one-for-one basis at the time of the company’s initial business combination, subject to certain adjustments, and they have no expiration date.

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

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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^*

Mohamed Mohideen Mahboob Subuhani

(Last) (First) (Middle)

ONE WORLD TRADE CENTER, SUITE 8500

(Street)

NEW YORK NY 10007

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
StoneBridge Acquisition II Corp [ APAC ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

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

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

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

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

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
Class B Ordinary Shares	(1)	02/05/2026		A		25,000		(1)	(1)	Class A Ordinary Shares	25,000	(1)	25,000	D

Explanation of Responses:

1. On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 25,000 Class B Ordinary Shares of the Issuer to Mahboob Subuhani Mohamed Mohideen for his service as a member of the Board and committees of the Board. The Class B Shares were transferred by and from the Issuer's sponsor, StoneBridge Acquisition Sponsor II LLC, to Mahboob Subuhani Mohamed Mohideen. The Class B Ordinary Shares will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to certain adjustments and have no expiration date.

	/s/ Mahboob Subuhani Mohamed Mohideen	02/06/2026
	** 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).
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FAQ

What insider transaction did APAC report in this Form 4?

APAC reported that director Mahboob Subuhani Mohamed Mohideen received an equity grant of 25,000 Class B Ordinary Shares on February 5, 2026. These shares were awarded for his service on the board and its committees and came from the company’s sponsor, not through an open-market purchase.

How many shares did the APAC director receive and at what price?

The APAC director was granted 25,000 Class B Ordinary Shares at a reported price of $0.00 per share. This reflects a compensatory equity award rather than a cash purchase, increasing his beneficial holdings to 25,000 Class B shares after the transaction.

Who provided the 25,000 Class B shares granted to the APAC director?

The 25,000 Class B Ordinary Shares were transferred by StoneBridge Acquisition Sponsor II LLC, APAC’s sponsor, to director Mahboob Subuhani Mohamed Mohideen. The transfer was approved as an equity grant by the board for his service on the board and its committees.

How will the granted Class B shares convert into APAC Class A shares?

The granted 25,000 Class B Ordinary Shares will automatically convert into 25,000 Class A Ordinary Shares on a one-for-one basis at the time of APAC’s initial business combination. The conversion is subject to certain adjustments but has no stated expiration date.

Does this Form 4 show the APAC director owning shares after the grant?

Yes. Following the equity grant, director Mahboob Subuhani Mohamed Mohideen beneficially owns 25,000 Class B Ordinary Shares of APAC. These are reported as directly owned derivative securities and are scheduled to convert into Class A Ordinary Shares upon the initial business combination.

Is this APAC Form 4 transaction a purchase or a compensation award?

This APAC Form 4 reflects a compensation-related equity award, not a market purchase. The board approved an equity grant of 25,000 Class B Ordinary Shares at $0.00 per share to the director in recognition of his service on the board and its committees.