BUZZ — Supermicro names Mark Long CFO; shares fall
* AI server maker Supermicro Computer shares fall more than 4% to $34.23 premarket * Co appoints Mark Long as CFO, effective immediately * Mark succeeds David Weigand, CFO of co since 2021 * Mark previously served as CFO and chief strategy officer of data storage co Western Digital * The move comes nearly two years aft