Cfo Thought Leader

It was an impromptu meeting Gantus will never forget. One day at Tesla, the company’s then-President of Automotive, Jérôme Guillen, pulled her aside, whispering about a decision Elon Musk was leaning toward. Guillen—who led the automaker’s push for production scale and supply chain agility—believed a different path could better serve the company, but needed someone with operational and financial data at her fingertips. “Let’s go talk to him—just you and me,” Guillen said. Standing before Musk, Gantus walked through cost impacts and strategic trade-offs, methodically highlighting why their plan would outperform the existing direction. She recounts feeling a rush of excitement when Musk ultimately changed course, calling it key to her growth.That moment encapsulates Gantus’s rapid ascent from Tesla’s first corporate FP&A hire to a finance leader shaping billion-dollar decisions. Her approach has always been about embedding finance in day-to-day operations, whether rethinking shift schedules, optim