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Twitter Inc prices shares at $26: source

A file illustration picture shows the search tab for Twitter on a computer screen in Frankfurt, October 21, 2013. REUTERS/Kai Pfaffenbach/Files

(Reuters) - Twitter Inc on Wednesday priced its initial public offering above its expected range to raise more than $1.8 billion, according to a source, in a sign of strong investor demand for the most highly anticipated U.S. public float since Facebook Inc.

The microblogging network priced 70 million shares at $26, above the expected range of $23 to $25, which had already been raised once before.

(Reporting by Olivia Oran; Editing by Bernard Orr)