SCHEDULE 13G/A

BLUE ACQUISITION CORP.

Class A ordinary shares, $0.0001 par value per share · CUSIP: G1331A108

Event date: 2025-12-31

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: 369,585 · Class: 1.77%

• Westchester Capital Partners, LLC

  Shares: 1,157 · Class: 0.01%

• Virtus Investment Advisers, LLC

  Shares: 346,437 · Class: 1.66%

• The Merger Fund

  Shares: 333,457 · Class: 1.60%

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