X0202 SCHEDULE 13G 0001512805 XXXXXXXX LIVE Class A ordinary shares, $0.0001 par value per share 03/31/2026 0002040381 Pioneer Acquisition I Corp G7117W107 131 Concord Street Brooklyn NY 11201 Rule 13d-1(b) Westchester Capital Management, LLC b DE 95758 1152746 95758 1152746 1248504 5.65 IA * Based on 22,114,799 Shares outstanding as of March 26, 2026, as reported in the Issuer's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 26, 2026. Westchester Capital Partners, LLC b DE 10108 0 10108 0 10108 0.05 IA * Based on 22,114,799 Shares outstanding as of March 26, 2026, as reported in the Issuer's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 26, 2026. Virtus Investment Advisers, LLC DE 0 1152746 0 1152746 1152746 5.21 IA * Based on 22,114,799 Shares outstanding as of March 26, 2026, as reported in the Issuer's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 26, 2026. The amounts reported on this page are also included in the amounts reported by Westchester Capital Management, LLC on this Schedule 13G. Pioneer Acquisition I Corp 131 Concord Street, Brooklyn, NY 11201 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, and Virtus Investment Advisers, LLC ("Virtus"), a Delaware limited liability company. Virtus, a registered investment adviser, serves as the investment adviser to The Merger Fund ("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 Each of Westchester, WCP and Virtus are organized under the laws of the State of Delaware. N IA Westchester Capital Management, LLC: 1,248,504 Westchester Capital Partners, LLC: 10,108 Virtus Investment Advisers, LLC: 1,152,746 Westchester Capital Management, LLC: 5.65% Westchester Capital Partners, LLC: 0.05% Virtus Investment Advisers, LLC: 5.21% Westchester Capital Management, LLC: 95,758 Westchester Capital Partners, LLC: 10,108 Virtus Investment Advisers, LLC: 0 Westchester Capital Management, LLC: 1,152,746 Westchester Capital Partners, LLC: 0 Virtus Investment Advisers, LLC: 1,152,746 Westchester Capital Management, LLC: 95,758 Westchester Capital Partners, LLC: 10,108 Virtus Investment Advisers, LLC: 0 Westchester Capital Management, LLC: 1,152,746 Westchester Capital Partners, LLC: 0 Virtus Investment Advisers, LLC: 1,152,746 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 05/15/2026 Westchester Capital Partners, LLC /s/ CaSaundra Wu 05/15/2026 Virtus Investment Advisers, LLC /s/ Chetram Persaud 05/15/2026