** Shares in Exosens EXENS.PA drop 5.8%, at the bottom of France's blue-chip index .SBF120, after 2.25 million shares in the defence firm were sold through a secondary accelerated bookbuilding process
** Top shareholder HLD is offloading 4.4% of the company's share capital, the bookrunner says
** Price was set at 64.60 per share, which represents a 3.7% discount to Wednesday's close of 67.10 euros; the sale was worth 145 million euros ($170 million)
** Up to Wednesday's close, the shares were up 38.5% YTD
($1 = 0.8579 euros)
(Reporting by Dimitri Rhodes in Gdansk)
((dimitri.rhodes@thomsonreuters.com))