PE firm will sell stake of about 10% in offering targeted for early May.

While offerings lag, backlog of U.S. deals is sizable; Facebook could trigger rebound.

While offerings lag, backlog of U.S. deals is sizable; Facebook could trigger rebound.

Company already has more than 1,000 shareholders, valuation over $100 billion.

Company already has more than 1,000 shareholders, valuation over $100 billion.

Offerings from Zynga, Michael Kors and nine others may total $3.8 bln.

Companies canceled or put off $8.9 bln in offerings amid Q3 stocks plunge

Companies canceled or put off $8.9 bln in offerings amid Q3 stocks plunge