Sept 22 (Reuters) -

Flood insurance provider Neptune Insurance said on Monday it

was targeting a valuation of up to $2.76 billion in an initial

public offering in the U.S.

Some of its existing shareholders are targeting to raise up

to $368.4 million by offering 18.4 million shares priced between

$18 and $20 apiece.

Morgan Stanley, J.P. Morgan and BofA Securities are the

lead underwriters for the offering.

Neptune will list its stock on the NYSE under the symbol

"NP."