** Ambiq Micro AMBQ.N shares down 0.6% at $32.50 before the bell after chip designer's follow-on priced
** Austin, Texas-based co late Thurs announced ~2.7 mln shares, a 5.2% discount to last sale
** Offering, which was boosted from 2.2 mln shares, includes 42,949 shares offloaded by certain holders
** AMBQ expects to use net proceeds it receives primarily for general purposes, including sales and marketing activities, product development, and capex, per the prospectus
** BofA and UBS joint lead bookrunners
** AMBQ went public in Jul IPO priced at $24
** Stock has traded as high as $51.76 (Aug 1) and as low as $22.12 (Nov 21)
(Lance Tupper is a Reuters market analyst. The views expressed are his own)
((lance.tupper@tr.com 1-646-279-6380))