Twitter unveils IPO filing, aims to raise $1 bln

SAN FRANCISCO (Reuters) - Twitter Inc will seek to raise $1 billion in the largest Silicon Valley IPO since Facebook Inc's 2012 coming-out party, according to an IPO filing made public on Thursday.

The eight-year-old service, the preferred communications tool for celebrities and politicians alike, gave potential investors their first glance at its financials.

Twitter intends to list common stock under the symbol "TWTR." (Reporting by San Francisco newsroom; Editing by Phil Berlowitz)