United Continental Holdings is staying silent about the condition of new United CEO Oscar Muniz.
Late Sunday, the company has still refused to confirm or deny Muniz, 56, suffered a suspected heart.
The company issued a brief statement Friday saying it would give ‘further details as appropriate.’
Munoz had been in the top job for only a few weeks after the ousting of former CEO Jeff Smisek, adding to the turmoil at the troubled carrier.
United shares fell more than 3% after news broke of Munoz’ hospitalization.
The airline has been criticized for keeping shareholders in the dark for so long.
"Shareholders don’t have a right to know what the CEO had for dinner but the argument about privacy goes out the window if the CEO has a serious health issue," said Erik Gordon, a professor of the Ross School of Business at the University of Michigan.
Bloomberg said United has been mulling over appointing an interim chief executive but were hindered by a lack of information about his condition and expected recovery period.
