Prabhu Antony - 05 Feb 2026 Form 4 Insider Report for StoneBridge Acquisition II Corp (APAC)

Reporting relationship: Chief Financial Officer, Director, 10%+ Owner
Issuer ticker: APAC
Reported as of: 05 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 06 Feb 2026, 19:50:58 UTC
Prior SEC filing: 29 Sep 2025
Next SEC filing: 06 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Prabhu Antony

Key filing fact

Prabhu Antony filed Form 4 for StoneBridge Acquisition II Corp (APAC) on 06 Feb 2026.

Key facts

This page summarizes Prabhu Antony's Form 4 filing for StoneBridge Acquisition II Corp (APAC).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 06 Feb 2026, 19:50.

Change

Previous filing in this sequence was filed on 29 Sep 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001853814 Primary reporting owner

Antony Prabhu

Relationship: Chief Financial Officer, Director, 10%+ Owner
Address: ONE WORLD TRADE CENTER, SUITE 8500, NEW YORK
Signature: /s/ Prabhu Antony
Signature date: 06 Feb 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

APAC transaction Derivative

Class B Ordinary Shares

Award

Transaction value
Shares: -100,000
Change %: -9.2%
Price
Shares after: 991,667
Date: 05 Feb 2026
Ownership: See footnote
Underlying class: Class A Ordinary Shares
Underlying amount: 100,000
Exercise price
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

On, and effective, February 5, 2026, the board of directors (the "Board") of StoneBridge Acquisition II Corporation (the "Issuer") approved an equity grant of 100,000 Class B Ordinary Shares of the Issuer to four independent members of the Board for their respective services as members 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 (the "Sponsor"), to the four independent members of the Board. 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.

Footnote F2

The shares were, and are, as applicable, directly held by the Sponsor. The reporting person is a member of BP SPAC Sponsor II LLC, the sole managing member of the Sponsor. As such, the reporting person has voting and investment discretion with respect to the ordinary shares held of record by the Sponsor and may be deemed to have shared beneficial ownership of the ordinary shares held directly by the Sponsor. The reporting person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest he may have therein, directly or indirectly.