X Chief Executive Officer Linda Yaccarino, who oversees the social network’s relationships with advertisers, sent a memo to employees signaling her support of owner Elon Musk after his incendiary comments insulting brands that have backed away from the platform.

“Our principles do not have a price tag, nor will they be compromised — ever,” Yaccarino wrote Thursday, a day after Musk told former advertisers including Walt Disney Co. to go “f—-” themselves. “No matter how hard they try, we will not be distracted by sideline critics who don’t understand our mission.”