SCHEDULE 13G

AA MISSION ACQUISITION CORP

Class A ordinary shares, $0.0001 par value per share · CUSIP: G1000R101

Event date: 2025-09-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Westchester Capital Management, LLC

  Shares: 2,696,389 · Class: 7.63%

• Westchester Capital Partners, LLC

  Shares: 4,783 · Class: 0.01%

• Virtus Investment Advisers, LLC

  Shares: 2,653,972 · Class: 7.51%

• The Merger Fund

  Shares: 2,580,868 · Class: 7.3%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.