Check out which companies are making headlines after the bell Wednesday:
Google - The Internet-search engine posted first-quarter earnings of $6.27 a share, excluding items, on $15.42 billion in revenue, versus estimates calling for EPS of $6.41 on $15.54 billion in sales. Its shares fell 5.8 percent in after-hours trading.
American Express - The card issuer reported first-quarter earnings per share of $1.33 on $8.20 billion in revenue, versus estimates calling for EPS of $1.30 on $8.36 billion in sales. Shares declined 1.5 percent in after-hours trading.