Eastman Kodak Co. named C. Michael Hamilton, a 20-year veteran of the company, as acting chief financial officer.
Christopher J. Steffen, who had joined Kodak in February, abruptly resigned from the company last week, saying he and Whitmore disagreed on how to implement change. Kodak watchers speculated that Steffen wanted to move faster and make deeper cuts than Whitmore to restructure the photography company's businesses.
Steffen, a former Honeywell Inc. executive, was the first high-level executive to come from outside Rochester, N.Y.-based Kodak in more than two decades.
Kodak stock closed up $1.125 at $49.875 on the NYSE.