Company: CCIXW
Filing Date: 2025-12-05
Form Type: S-4/A
Source: 0001193125-25-309933
Chunk: 360

Company: Churchill Capital Corp IX/Cayman
Filing Date: 2025-12-05
Form: S-4/A
Chunk 360
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 below could be materially different, including that both PlusAI U.S. Holders and PlusAI Non-U.S. Holders would be required to recognize gain or loss with respect to the Earnout Right, and PlusAI Non-U.S. Holders would be subject to withholding. Holders of PlusAI Class A common stock should consult their own tax advisors as to the consequences of the possible receipt of any Earnout Right, including the application of the installment sale rules. Consequences to Holders of PlusAI Class A Common Stock if the Merger Qualifies as a Reorganization Assuming the Merger qualifies as a “reorganization” under Section 368(a) of the Code, the U.S. federal income tax consequences of the Merger to Holders of PlusAI Class A common stock are as follows: • other than as described below relating to imputed interest, Holders of PlusAI Class A common stock will not recognize gain or loss upon the exchange of their PlusAI Class A common stock for Post-Closing Company Class A common stock and the Earnout Right in the Merger. Holders of PlusAI Class A common stock will obtain a basis in the Post-Closing Company Class A common stock they receive in the Merger (other than Earnout Shares that are treated as imputed interest, as described below) equal to their basis in the PlusAI common stock exchanged therefor. For this purpose, IRS guidance indicates that at the time of the Merger, the Holders of PlusAI Class A common stock should be treated as receiving the maximum number of Earnout Shares they could receive under the terms of the Merger Agreement, and that adjustments to each Holder’s tax basis in shares of Post-Closing Company Class A common stock actually received should be made if the maximum number of Earnout Shares ultimately is not issued. Except to the extent of Earnout Shares treated as imputed interest (as described below), the holding period of the shares of Post-Closing Company Class A

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common stock received by a Holder of PlusAI Class A common stock in the Merger will include the holding period of the shares of PlusAI Class A common stock surrendered in exchange therefor; • if a Holder of PlusAI Class A common stock acquired different blocks of shares of PlusAI Class A common stock at different times or at different prices, such Holder should consult its own tax advisor regarding the manner in which its basis and holding period should be allocated among its Post-Closing Company Class A common stock in light