KURA, FLNC, NVTS and NBIS lead premarket big-cap gainers
Premarket movers include KURA up 10% on an insider purchase, FLNC up 8% after a UBS upgrade to NEUTRAL, NVTS up 5% on a Claros acquisition plan, and NBIS up 4% after closing a convertible notes offering totaling about $5.75 billion gross proceeds.
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