** Shares of digital health firm Butterfly Network BFLY.N down 10% at $3.16 in extended trading as it seeks equity

** Burlington, Massachusetts-based co commences stock offering; deal size not disclosed

** It plans to use net proceeds to fund development and commercialization of new and existing products and services, and general corp purposes

** TD Cowen, William Blair and Lake Street are bookrunners

** Co has ~213 mln shares outstanding for roughly $750 mln market cap, and ~156 mln shares of public float, per LSEG

** BFLY on Weds closed down 2.8% at $3.51

** Shares up 12.5% YTD and have more than tripled over the past six months

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))