Board member Rubin Ritter has been appointed acting CEO.
Kinnevik's shares have fallen sharply on the stock market since December last year. On Monday, the shares fell further after a report from a short-selling firm that assessed the shares as overvalued.
In early February, financial statements showed that Kinnevik's net asset value fell by SEK 1.7 billion during the fourth quarter of 2025, with a write-down on the value of shares in the financially stressed steel manufacturer Stegra contributing.
Georgi Ganev is due to step down as CEO by November this year.
