Qing Bill Sun - 09 Oct 2025 Form 4 Insider Report for AA Mission Acquisition Corp. II (YCY)

Reporting relationship: Chief Executive Officer, Director, 10%+ Owner
Issuer ticker: YCY
Reported as of: 09 Oct 2025
Net transaction value: +$393,750
SEC form: 4
Accepted by SEC: 14 Oct 2025, 17:25:32 UTC
Prior SEC filing: 06 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Qing Sun

Key filing fact

Qing Bill Sun filed Form 4 for AA Mission Acquisition Corp. II (YCY) on 14 Oct 2025.

Key facts

This page summarizes Qing Bill Sun's Form 4 filing for AA Mission Acquisition Corp. II (YCY).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 14 Oct 2025, 17:25.

Change

Previous filing in this sequence was filed on 06 Oct 2025.
Current net transaction value: +$393,750.

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 0002031421 Primary reporting owner

Sun Qing Bill

Relationship: Chief Executive Officer, Director, 10%+ Owner
Address: C/O AA MISSION ACQUISITION CORP. II, 21 WATERWAY AVENUE, STE 300 #9733, THE WOODLANDS
Signature: /s/ Qing Sun
Signature date: 14 Oct 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

YCY transaction

Class A ordinary shares, par value $0.0001 per share

Purchase

Transaction value: $262,500
Shares: +26,250
Change %: +0.82%
Price: $10.00
Shares after: 3,235,250
Date: 09 Oct 2025
Ownership: See footnote
Footnotes: F1, F2

Reported derivative securities

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

YCY transaction Derivative

Private Placement Warrants

Purchase

Transaction value: $131,250
Shares: +13,125
Change %: +7.9%
Price: $10.00
Shares after: 180,125
Date: 09 Oct 2025
Ownership: See footnote
Underlying class: Class A ordinary shares
Underlying amount: 13,125
Exercise price
Footnotes: F2, F3, F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Includes (i) 360,250 Class A ordinary shares underlying the Private Placement Units and (ii) 2,875,000 Class B ordinary shares.

Footnote F2

Qing Sun is the managing member of AA Mission Sponsor II and has sole voting and investment discretion with respect to the Class B ordinary shares held of record by the Sponsor. Qing Sun disclaims any beneficial ownership of any Class B ordinary shares held by the sponsor except to the extent of his respective pecuniary interest therein.

Footnote F3

The warrants will become exercisable 30 days after the completion of our initial business combination.

Footnote F4

If AA Mission Acquisition Corp. II is unable to complete its initial business combination within the completion window, the warrants may expire worthless.