Take a look at some of Tuesday's after-hours movers:
Heron Therapeutics — Shares of the biotechnology firm spiked 29 percent in after-hours trade on positive results of a clinical study for a drug that manages pain following surgery on the big toe joint.
Norfolk Southern — Mark Manion, executive vice president and chief operating officer, announced he will retire, effective Feb. 1, 2016. Manion will be succeeded by Michael Wheeler, currently vice president of engineering. President and CEO James Squares will replace Charles "Wick" Moorman as chairman of the corporation's board, effective Oct. 1.
Starbucks — Cappuccine, a producer of frappe and other frozen beverage mixes, sent a cease-and-desist letter to Starbucks for using a trademark in summer flavor names.