NEW YORK (Reuters) -Activist investor Jana Partners, which last year pushed Wolfspeed to consider a sale to boost its share price, has exited its entire position in the silicone carbide wafer maker, according to a regulatory filing made on Thursday. Wolfspeed said last week it is considering bankruptcy and has seen its shares lose nearly 92% of their value in the last five years to trade at $3.77 now. Jana's regulatory filing shows it sold nearly 5 million Wolfspeed shares during the first quarter of 2025.