Check out the companies making headlines after the bell Monday:
Express Scripts' stock edged lower after the pharmacy-benefit management service posted lower-than-expected revenues in the first quarter. Express Scripts posted earnings of $1.22 per share, excluding items, in line with expectations, on revenues of $24.79 billion, below the $25.2 billion expected.
Shares of Sanmina popped in extended trading after the company's earnings per share hit a decade high in the latest quarter. The company, which manufacturers parts for electronic equipment, posted non-GAAP diluted earnings per share of 63 cents on revenue of $1.61 billion.