The board of directors of storage chip manufacturer Sandisk has approved an additional $14 billion stock repurchase program, bringing its total remaining repurchase authorization to $15.5 billion, which accounts for approximately 8.6% of the company's current market capitalization. This move comes after the company reported strong fourth-quarter financial results, with revenue growing 372% year-over-year to $8.97 billion, a gross profit margin of 84.6%, and full-year net profit reaching $11.4 billion.