Mission Sponsor Aa II - 09 Oct 2025 Form 4 Insider Report for AA Mission Acquisition Corp. II (YCY)

Role: 10%+ Owner
Signature: /s/ Qing Bill Sun, as Member of AA Mission Sponsor II
Issuer symbol: YCY
Transactions as of: 09 Oct 2025
Net transactions value: +$393,750
Form type: 4
Filing time: 14 Oct 2025, 17:26:07 UTC
Previous filing: 06 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
AA Mission Sponsor II	10%+ Owner	C/O AA MISSION ACQUISITION CORP. II, 21 WATERWAY AVENUE, STE 300 #9733, THE WOODLANDS	/s/ Qing Bill Sun, as Member of AA Mission Sponsor II	14 Oct 2025	0002076601

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	$262,500	+26,250	+0.82%	$10.00	3,235,250	09 Oct 2025	Direct	F1

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	$131,250	+13,125	+7.9%	$10.00	180,125	09 Oct 2025	Class A ordinary shares	13,125		Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Includes (i) 360,250 Class A ordinary shares underlying the Private Placement Units and (ii) 2,875,000 Class B ordinary shares.
F2	The warrants will become exercisable 30 days after the completion of our initial business combination.
F3	If AA Mission Acquisition Corp. II is unable to complete its initial business combination within the completion window, the warrants may expire worthless.