** U.S.-listed shares of Chile-based LATAM Airlines LTM.N down 3.9% at $43 in extended trading after secondary offering news
** LTM launches sale of 15 mln American Depositary Shares (ADSs) by existing shareholders
** JP Morgan and Barclays are underwriters for offering
** U.S.-listed shares on Wed ended up 3.3% at $44.75
** Co has 302.2 mln shares outstanding for about $13.5 bln market cap, per LSEG data
** YTD, shares up 62%
** All 6 analysts rate LTM "buy" and median PT is $52.50 - LSEG