Here are today's top news headlines from Check back throughout the day as this list is updated, and follow us on Twitter at TMFBreaking.

Stock Market Today: 3D Systems' Sales Bounce and Mattel's $460 Million Deal

Today's Top Biotech Stories: Ampio Pharmaceuticals, Auxilium Pharmaceuticals, Bayer, and Medivation

Mt. Gox Files for Bankruptcy Protection; 850,000 Bitcoins Unaccounted For

Q4 GDP Growth Downsized to 2.4%

Citigroup Inc. Revises Income Down $360 Million Due to Fraud in Mexican Operations

OmniVision Technologies Surges on Earnings

Dow Jumps Despite Telecom Weakness; New Records Ahead?

Isis Pharmaceuticals Q4 Revenue More Than Doubles; Loss Widens Anyway

Here's Why the Dow Doesn't Care About Today's Slow-Growth GDP Report

Hulu Selling Japan Business to Nippon TV

GrubHub Orders Up an IPO

United Airlines Talks About the Weather

Chicago Businesses Boom for Second Consecutive Month

Pending Home Sales Stay Slumped

3D Systems Posts Strong Revenue Growth and Expectations Rise for February Auto Sales

Chesapeake Energy Corporation Selling Natural Gas Compression Assets for $520 Million

U.S. Consumer Confidence Ticks up in February

Apple CEO Tim Cook Reassures Investors at Shareholder Meeting