A performer dressed as Mickey Mouse entertains guests during the reopening of the Disneyland theme park in Anaheim, California. Check out the companies making headlines in midday trading. Disney — Shares jumped 5% after the company reappointed Bob Iger as chief executive officer, effective immediately and 11 months after he left Disney. Bob Chapek, Iger's hand-picked successor who was named CEO in February 2020, has come under fire during his tenure for various decisions leading to a slide in Disney's stock price and weaker-than-expected profits. MongoDB — Shares of the database platform provider fell 8% after Morgan Stanley downgraded them...