Chipotle Mexican Grill was sued on Monday by shareholders for concealing how many of its restaurants were skimping on portions, forcing the chain to spend more on ingredients and hurting its stock price.

The class action suit was filed with a federal court in Santa Ana, California on behalf of investors who purchased Chipotle stock and options between Feb. 8 and Oct. 29, 2024. The suit claims that the fast-food chain kept mum about increasing "unhappiness" among its customers because of inconsistent portion sizes.

Shareholder said the truth came out as customers voiced dismay on TikTok and other social media, prompting Chipotle to reemphasize “generous portions” at its more than 3,600