The logo of Atos is pictured at the Eurosatory international defence and security exhibition in Villepinte, near Paris, France, on Jun 13, 2022. (Photo: REUTERS/Benoit Tessier) LONDON: Hedge fund manager Christopher Hohn has written to Airbus demanding it drop a deal to purchase a minority stake in French IT consulting firm Atos' soon-to-be spun-off division Evidian. In a public letter to the planemaker on Monday, Hohn said that Evidian was a "highly levered company" and investing in it would "dilute the quality of Airbus' business."