Just four months after taking the helm as CEO of Chipotle Mexican Grill, Brian Niccol is scoring big with investors. The former Taco Bell CEO's appointment has resulted in a more than 80 percent bump in the company's stock since it was announced in February, and that could just be the beginning. Niccol is set to unveil his vision for turning around the beleaguered burrito chain Wednesday after the bell in a special investors call. Up until now, Chipotle's massive stock move has been based solely on Niccol's reputation. "The stock move has been about the potential for new leadership to recover the brand’s allure and the performance that for years made Chipotle one of the best performing restaurant companies," John Zolidis, president of Quo Vadis Capital, wrote in a research note Monday. "Now we will finally get to hear just how Mr. Niccol and his new team are going to make it happen." (Source: FactSet) He is known for his marketing prowess and technology innovation, two key areas that have not been a top priority for Chipotle. At Taco Bell, he introduced mobile order and pay, repositioned the Mexican chain as a lifestyle brand and pushed for more ingenuity in the kitchen. Niccol has said Chipotle will be focusing heavily on digital, marketing and menu innovation. He told investors that he would share more detail about Chipotle's plan during the call Wednesday. Chipotle has struggled to regain customer confidence after a series of foodborne illness outbreaks nearly three years ago. Ahead of those events, the stock peaked on Aug. 5, 2015, at $758.61. But shares now are trading about 40 percent lower. Its market capitalization at that all-time high was $23.6 billion, nearly half its current $12.8 billion. But the stock fell to its lowest level since food safety issues on Feb. 13, just a day ahead of Chipotle's announcement that Niccol would be its new CEO. At that time, the stock was at $251.33 per share. During midday trading Wednesday, the stock was trading around $460 per share.

A history of success

Niccol, 43, came to the restaurant industry with an engineering degree, an MBA in business and a 10-year stint at consumer products giant Procter & Gamble. At P&G he made a name for himself for his work in brand management after he launched a Scope mouthwash campaign that sent animated kisses to customers via email, according to the Los Angeles Times. This stunt was the first of its kind. This technological and marketing innovation was not a one-off for Niccol. In 2005, he moved to Yum Brands, first taking on several posts at Pizza Hut before transitioning to Taco Bell in 2011. Once there, Niccol introduced mobile ordering and payment across Taco Bell's 7,000 locations in the U.S. and reached an agreement with franchisees to finance new tech initiatives, including self-serve kiosks and expanded delivery. "We always aim to stay relevant with changing consumer tastes and trends, whether that be creating innovative menu items or offering the latest technology that connects customers to our brand when they want it, where they want it," Niccol said in a statement at the time.

Brian Niccol, CEO of Chipotle. Getty Images