Qing Bill Sun - 02 Oct 2025 Form 4 Insider Report for AA Mission Acquisition Corp. II (YCY)

Role: Chief Executive Officer, Director, 10%+ Owner
Signature: /s/ Qing Sun
Issuer symbol: YCY
Transactions as of: 02 Oct 2025
Net transactions value: +$5,010,000
Form type: 4
Filing time: 06 Oct 2025, 19:23:58 UTC
Previous filing: 01 Oct 2025
Next filing: 14 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sun Qing Bill	Chief Executive Officer, Director, 10%+ Owner	C/O AA MISSION ACQUISITION CORP. II, 21 WATERWAY AVENUE, STE 300 #9733, THE WOODLANDS	/s/ Qing Sun	06 Oct 2025	0002031421

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	YCY	Class A ordinary shares, par value $0.0001 per share	Purchase	$3,340,000	+334,000	+12%	$10.00	3,209,000	02 Oct 2025	See footnote	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	YCY	Private Placement Warrants	Purchase	$1,670,000	+167,000	+100%	$10.00	334,000	02 Oct 2025	Class A ordinary shares	167,000		See footnote	F2, F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes (i) 334,000 Class A ordinary shares underlying the Private Placement Units and (ii) 2,875,000 Class B ordinary shares (of which 375,000 are subject to forfeiture depending on the extent to which the underwriters' over-allotment is exercised).
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.
F3	The warrants will become exercisable 30 days after the completion of our initial business combination.
F4	If AA Mission Acquisition Corp. II is unable to complete its initial business combination within the completion window, the warrants may expire worthless.