C3.ai, Inc. (NYSE:AI), the Enterprise AI application software company, today announced that on May 19, 2026, a jury in the Superior Court of the State of Delaware returned a unanimous verdict in favor of C3 AI in its lawsuit against Cummins Inc. (NYSE:CMI), finding that Cummins misappropriated C3 AI's trade secrets.

C3 AI brought the case in November 2023, alleging that its licensee, Columbus, Indiana-based Cummins, misappropriated trade secrets. C3 AI became aware of this scheme when a Cummins employee inadvertently shared internal meeting notes documenting Cummins' plan with C3 AI.

C3 AI made repeated attempts to resolve the matter amicably with Cummins management. C3 AI placed calls that Cummins did not return, sent a formal demand letter, and twice agreed to meet in person. Cummins twice cancelled.

"We are grateful to the members of the jury for their service, their attention, and their care," said Thomas M. Siebel, Chairman and Chief Executive Officer of C3 AI. "We placed our faith in the United States justice system, and the justice system worked. The jurors heard the evidence, applied the law, and unanimously concluded that Cummins misappropriated C3 AI's trade secrets. This verdict is a rebuke of Cummins' actions that reflect poorly on Cummins' executive management."

This is not an isolated event. In December 2023, the U.S. Department of Justice issued a press release stating: "The Justice Department reached an initial agreement with Cummins Inc. to settle claims that, over the past decade, the company unlawfully altered hundreds of thousands of engines to bypass emissions tests in violation of the Clean Air Act. As part of the agreement, the Justice Department will require Cummins to pay $1.675 billion, the largest civil penalty we have ever secured under the Clean Air Act." This same Cummins now stands unanimously adjudged by a jury in Delaware to have engaged in misappropriation of intellectual property.

"I respectfully suggest that the Board of Directors of Cummins take a long and hard look at the ethical grounding and core values of its senior management, including its CEO," Mr. Siebel said. "Cummins was an iconic American company. Its founder, Clessie Cummins, built it on innovation, quality, and integrity. The Cummins workforce, the Cummins shareholders, and the Cummins legacy deserve better."