Check out which companies are making headlines after the bell Tuesday:
3M - The conglomerate increased its quarterly dividend by 7.6 percent to 63.5 cents a share from 59 cents a share and authorized a share buyback program of up to $7.5 billion. Shares gained in extended-hours trading.
(Read More: Stocks Rally 1%, but Dow Ends Shy of 14,000)
Hewlett-Packard - The tech company's board is considering a break-up of the company among other options, according to a report from Atlantic Media's new business news website Quartz, citing sources familiar with the matter. But a source later told CNBC the company's intent for now is to keep its businesses together. Hewlett-Packard declined to comment on what it called speculation about a breakup. HP stock initially jumped in extended-hours trading following the report but quickly pared gains.
Earlier in the day, HP had taken a swipe at Dell's plan to go private, saying the company has a "very tough road ahead" and faces an "extended period of uncertainty and transition that will not be good for its customers."
Disney - The entertainment conglomerate posted earnings of 79 cents a share, excluding one-time items, on revenue of $11.34 billion, exceeding estimates for 76 cents a share on revenue of $11.21 billion. Its stock moved higher in late trading.
Zynga - The social game services company posted earnings of a penny a share on revenue of $261 million, topping expectations for a loss of 3 cents a share on sales of $212 million. In addition, the company said it expects to hand in a loss of between 4 cents a share and 5 cents a share in the current quarter, greater than the penny loss analysts expected. But revenue guidance was better than expected. Shares jumped in extended-hours trading.
Expedia - The Internet-based travel website posted earnings of 63 cents a share, excluding one-time items, on sales of $975 million. Analysts expected the company to post earnings of 65 cents a share on revenue of $931 million. Shares advanced in extended-hours trading.
Chipotle Mexican Grill - The fast-casual restaurant chain posted earnings of $1.95 a share, missing expectations by a penny a share, while revenue matched forecasts. Last month, the company warned that its quarterly earnings would fall short of previous estimates due to higher food costs. The company said it expects to open 165 to 180 new stores in 2013 and fourth-quarter same-store sales increased 3.8 percent. Shares jumped in extended-hours trading.
Aflac - The insurance provider posted earnings of $1.48 a share, excluding one-time items, which was in line with expectations, while revenue fell short of estimates. Shares slipped in extended-hours trading.
Take Two Interactive - The videogame publisher and developer posted earnings of 67 cents a share, excluding one-time items, on revenue of $416 million, easily topping expectations for 54 cents a share on sales of $362 million. In addition, the company handed in current-quarter earnings guidance that was lighter than expected. Shares jumped in extended-hours trading.
Panera Bread - The bakery-cafe chain posted earnings of $1.75 a share on revenue of $572 million. Analysts expected the company to post earnings of $1.74 a share on revenue of $575 million. In addition, the company announced that Roger Matthews has been appointed CFO. Shares rallied in extended-hours trading.
Shutterfly - The photo-publishing website posted earnings of $1.40 a share on revenue of $352 million, blowing past expectations for $1.01 a share on revenue of $310 million. Shares surged after being temporarily halted in extended-hours trading.
Harley-Davidson - The American motorcycle manufacturer increased its quarterly dividend by 35.5 percent to 21 cents a share from 15.5 cents a share. Shares rose in extended-hours trading.
SLM - The student loan company increased its quarterly dividend by 20 percent to 15 cents a share from 12.5 cents a share and also authorized a $400 million share buyback program.
Aeropostale - The retailer announced its president Michael Cunningham will retire at the end of March. Shares were largely unchanged in extended-hours trading.