Filed by Churchill Capital Corp IX pursuant to Rule 425 under the Securities Act of 1933, as amended Subject Company: Churchill Capital Corp IX (Registration No. 333-290370) On April 7, 2026, Plus Automation, Inc. (“PlusAI”) held a webcast to discuss updates to its business. The following is a transcript of that webcast: Derrick Nueman: Thank you for joining us today for our business update call. My name is Derrick Nueman, Vice President of Investor Relations at PlusAI. The webcast will be available for replay at plus.ai/investors, where you will also find a copy of the investor presentation. Please note that this afternoon's webcast contains forward-looking statements regarding future events and the future performance of PlusAI and Churchill Capital Corp IX. These forward-looking statements are based upon information available to PlusAI and Churchill Capital Corp IX today and reflect the current views and expectations of PlusAI and Churchill Capital Corp IX. Actual results could differ materially from those contemplated by these forward-looking statements, including but not limited to the timing of development milestones, potential future customers and revenues, competitive industry outlook, our ability to enter into future agreements and generate revenue relating to our HyperFoundry platform, and the timing and completion of the business combination. Please refer to the presentation accompanying this webcast for more information on the risk regarding these forward-looking statements that could cause actual results to differ materially. It is now my pleasure to turn things over to David Liu, PlusAI’s CEO and Co-Founder. David Liu: Welcome to our business update call and thank you for joining us. I’m David Liu, Co-founder and CEO of PlusAI. Today’s call is intended to provide an update on the company’s recent business momentum, including key operational highlights, the introduction of a new revenue stream, and continued strong customer engagements across our