Check out the companies making headlines after the bell Wednesday:
Keurig Green Mountain rallied as much as 20 percent after posting higher-than-expected earnings. But the maker of K-Cup single-serve beverage pods reported a 13 percent fall in quarterly sales as a strong dollar weighed on sales of its brewing machines.
Shares of Allergan fell after the U.S. Treasury said more action was needed to deter corporate tax inversions. Last month, reports surfaced that the Botox-maker was it talks with pharmaceutical giant Pfizer regarding a possible merger. Allergan is based in Ireland, which has a lower tax rate than the U.S. Shares of Pfizer were also slightly lower.
Salesforce.com shares rose on earnings that beat analysts' forecasts. The customer-relationship management company reported a 23.7 percent jump in quarterly revenue, driven by higher demand for its Web-based sales and marketing software.
Shares of L Brands inched lower after posting revenue that came in lower than expected. The Victoria's Secret owner, however, did report earnings that beat expectations.
SunEdison's stock plunged on a report that Blackstone was not looking to invest in the company's debt. A market rumor earlier in the day had sent the stock higher, and it dropped in extended trade when that speculation fizzled.
Delta slipped after it announced it would acquire more outstanding capital stock of Grupo Aeromexico through a cash offer. "This investment will strengthen the airlines' partnership, provide more travel options for customers in the U.S. and Mexico and deliver the industry's best customer experience," the company said, in a statement.
Shares of NetApp jumped after the company reported a beat on the top and bottom lines for the second quarter of fiscal 2016. The data-storage-equipment maker reported a 6.4 percent fall in quarterly revenue, as demand for products in its core storage business fell.
— Reuters contributed to this report.