Chipotle Mexican Grill’s stock breached the $3,000 mark for the first time on record, rising as much as 8% on Wednesday after the burrito chain’s board approved a 50-for-1 stock split as the company looks to make the stock less expensive for potential investors.Shares of the California-based company have rallied to record levels over the past year powered by strong earnings owing to solid demand for burritos and rice bowls among its relatively wealthier customer base. The stock was recently at $2,909.Shares ...