SCHEDULE 13G

ALPEX ACQUISITION CORP

Class A ordinary shares, $0.0001 par value per share · CUSIP: G63325107

Event date: 2026-09-30

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: 938,298 · Class: 7.87%

• Westchester Capital Partners, LLC

  Shares: 4,702 · Class: 0.04%

• Virtus Investment Advisers, LLC

  Shares: 886,391 · Class: 7.44%

• The Merger Fund

  Shares: 839,925 · Class: 7.05%

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