SCHEDULE 13G/A 0001140361-25-042086 0001512805 XXXXXXXX LIVE 1 Class A ordinary shares, $0.0001 par value per share 12/31/2025 0002059654 Blue Acquisition Corp. G1331A108 1601 Anita Lane Newport Beach CA 92660 Rule 13d-1(b) Westchester Capital Management, LLC b DE 23148 346437 23148 346437 369585 1.77 IA * Based on 20,892,250 Shares outstanding as of November 12, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 12, 2025. The Class A ordinary shares (the "Ordinary Shares") reported herein include shares held in the form of units (the "Units"), each Unit consists of one Class A ordinary share of the Issuer and one right to receive one tenth (1/10) of a Class A ordinary share upon the consummation of an initial business combination. Westchester Capital Partners, LLC b DE 1157 0 1157 0 1157 0.01 IA * Based on 20,892,250 Shares outstanding as of November 12, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 12, 2025. The Class A ordinary shares (the "Ordinary Shares") reported herein include shares held in the form of units (the "Units"), each Unit consists of one Class A ordinary share of the Issuer and one right to receive one tenth (1/10) of a Class A ordinary share upon the consummation of an initial business combination. Virtus Investment Advisers, LLC DE 0 346437 0 346437 346437 1.66 IA * Based on 20,892,250 Shares outstanding as of November 12, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 12, 2025. The Class A ordinary shares (the "Ordinary Shares") reported herein include shares held in the form of units (the "Units"), each Unit consists of one Class A ordinary share of the Issuer and one right to receive one tenth (1/10) of a Class A ordinary share upon the consummation of an initial business combination. The amounts reported on this page are also included in the amounts reported by Westchester Capital Management, LLC on this Schedule 13G. The Merger Fund MA 0 333457 0 333457 333457 1.60 IV * Based on 20,892,250 Shares outstanding as of November 12, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 12, 2025. The Class A ordinary shares (the "Ordinary Shares") reported herein include shares held in the form of units (the "Units"), each Unit consists of one Class A ordinary share of the Issuer and one right to receive one tenth (1/10) of a Class A ordinary share upon the consummation of an initial business combination. The amounts reported on this page are also included in the amounts reported by Virtus Investment Advisers, LLC on this Schedule 13G. Blue Acquisition Corp. 1601 Anita Lane, Newport Beach, CA 92660 This statement is being filed jointly by the following (each, a "Reporting Person," and collectively, the "Reporting Persons"): Westchester Capital Management, LLC ("Westchester"), a Delaware limited liability company, Westchester Capital Partners, LLC ("WCP"), a Delaware limited liability company, Virtus Investment Advisers, LLC ("Virtus"), a Delaware limited liability company, and The Merger Fund ("MF"), a Massachusetts business trust. Virtus, a registered investment adviser, serves as the investment adviser to MF, The Merger Fund VL ("MF VL"), Virtus Westchester Event-Driven Fund ("EDF") and Virtus Westchester Credit Event Fund ("CEF"). Westchester, a registered investment adviser, serves as sub-advisor to each of MF, MF VL, EDF, CEF, JNL/Westchester Capital Event Driven Fund ("JNL"), JNL Multi-Manager Alternative Fund ("JARB") and Principal Funds, Inc. - Global Multi-Strategy Fund ("PRIN"). WCP, a registered investment adviser, serves as investment adviser to Westchester Capital Master Trust ("Master Trust", together with MF, MF VL, EDF, CEF, JNL, JARB and PRIN, the "Funds"). The Funds directly hold Ordinary Shares of the Company for the benefit of the investors in those Funds. Mr. Roy Behren and Mr. Michael T. Shannon each serve as Co-Presidents of Westchester and WCP. Westchester and WCP often make acquisitions in, and dispose of, securities of an issuer on the same terms and conditions and at the same time. Based on the foregoing and the relationships described herein, these parties may be deemed to constitute a "group" for purposes of Section 13(g)(3) of the Act. The filing of this statement shall not be construed as an admission that the Reporting Persons are a group, or have agreed to act as a group. Westchester Capital Management, LLC 100 Summit Lake Drive, Valhalla, NY 10595 Westchester Capital Partners, LLC 100 Summit Lake Drive, Valhalla, NY 10595 Virtus Investment Advisers, LLC One Financial Plaza, Hartford, CT 06103 The Merger Fund 101 Munson Street, Greenfield, MA 01301-9683 Each of Westchester, WCP and Virtus are organized under the laws of the State of Delaware. MF is organized under the laws of the State of Massachusetts. N IA IV Westchester Capital Management, LLC: 369,585 Westchester Capital Partners, LLC: 1,157 Virtus Investment Advisers, LLC: 346,437 The Merger Fund: 333,457 Westchester Capital Management, LLC: 1.77% Westchester Capital Partners, LLC: 0.01% Virtus Investment Advisers, LLC: 1.66% The Merger Fund: 1.60% Westchester Capital Management, LLC: 23,148 Westchester Capital Partners, LLC: 1,157 Virtus Investment Advisers, LLC: 0 The Merger Fund: 0 Westchester Capital Management, LLC: 346,437 Westchester Capital Partners, LLC: 0 Virtus Investment Advisers, LLC: 346,437 The Merger Fund: 333,457 Westchester Capital Management, LLC: 23,148 Westchester Capital Partners, LLC: 1,157 Virtus Investment Advisers, LLC: 0 The Merger Fund: 0 Westchester Capital Management, LLC: 346,437 Westchester Capital Partners, LLC: 0 Virtus Investment Advisers, LLC: 346,437 The Merger Fund: 333,457 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Westchester Capital Management, LLC /s/ CaSaundra Wu 02/13/2026 Westchester Capital Partners, LLC /s/ CaSaundra Wu 02/13/2026 Virtus Investment Advisers, LLC /s/ Chetram Persaud 02/13/2026 The Merger Fund /s/ Daphne Chisolm 02/13/2026