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 lawsuit alleges that the company made false and/or misleading statements and/or failed to disclose that: Chipotle's portion sizes were inconsistent and left many customers dissatisfied with Chipotle's offerings and Chipotle would have increased costs to ensure more generous 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