Check out the companies making headlines after the bell Monday:
Brinks - Shares of the security solutions provider rose more than 2 percent after Starboard Value disclosed its 8.2 percent stake in the firm.
Tenet Healthcare - The stock rose more than 3 percent as the medical company's profits came in at more than double analysts' expectations.
Anadarko Petroleum - The energy provider's shared fell as much as 1 percent after it reported a first-quarter loss of 72 cents a share, wider than the projected loss of 64 cents a share. Revenue also missed expectations.
Texas Roadhouse - The stock rallied nearly 5 percent after the casual dining chain topped first-quarter earnings forecasts of 44 cents a share by 2 cents. Meanwhile, revenue came in at $460 million, which was better than the $465 million analysts had expected.
Coach - The fashion designer's stock inched higher after it completed its acquisition of luxury brand Stuart Weitzman.