** Shares of Australian engineering firm Worley Ltd WOR.AX
RIC fall as much as 11.34% to A$14.460, marking their worst
intraday drop since Feb. 1, 2021
** WOR at its lowest level since Feb. 2, 2024
** Top loser in the ASX 200 benchmark index .AXJO
** Says top shareholder, Dubai-based infrastructure group
Sidara, sold about 19% stake via a block trade
** Sidara stake sale worth about A$1.63 bln ($1.07 bln)
based on WOR's last closing price of A$16.310
** WOR down 6.6% this year as of last close
($1 = 1.5237 Australian dollars)
(Reporting by Sameer Manekar in Bengaluru)
((Sameer.Manekar@thomsonreuters.com; Twitter: https://twitter.com/sameer_manekar))