** EBOS Group EBO.AX shares on ASX fall 4.61% to A$34.37
** Pharmaceutical co's stock is at its lowest level since May 2
** Set for worst intraday pct drop since late Feb
** Sybos Holdings announces block trade sale of 27 mln EBOS shares; upon completion, it'll reduce its stake to 4.9%
** Trading volume at around 330,190 shares, more than 5x its 30-day average
** EBO's ASX shares up 1.4% YTD, including the day's moves
** Co's NZX listing EBO.NZ falls 4.29% to NZ$37.280, its lowest level since May 7 as of 0419 GMT
(Reporting by Keshav Singh Chundawat in Bengaluru)
((Keshav.SinghChundawat@thomsonreuters.com))