** Shares of nutritional products firm Herbalife HLF.N rise ~20% to $6.75 premarket
** On Wednesday, co posted Q4 sales of $1.21 bln, above analysts' est of $1.19 bln - LSEG
** Co reported Q4 adj profit of 36 cents/shr, above analysts' est of 22 cents/shr - LSEG
** Co expects net sales in 2025 to be down 3% to up 3% year-over-year; co posted net sales of $4.99 bln in 2024
** Co forecasts net sales in Q1 FY25 to be down 5.5% to down 1.5% year-over-year; co posted net sales of $1.26 bln in Q1 FY24
** Separately, Stephan Gratziani named as co's new chief executive officer, starting May 1
** Current CEO Michael Johnson will transition to the exec chairman role
** HLF fell 56.5% in 2024
(Reporting by Kamal Choudhury in Bengaluru)
((Kamal.Choudhury@thomsonreuters.com;))