Which public company has the most shares outstanding?

companyTicker

Shares outstanding (billions)

General ElectricGE

10.1

MicrosoftMSFT

9.3

PfizerPFE

6.8

Cisco SystemsCSCO

6.1

AT&TT

6.0

IntelINTC

5.8

Exxon MobilXOM

5.4

OracleORCL

5.1

CitigroupC

5.0

Bank of AmericaBAC

4.4

Source: MSN Investor