Arcadia Biosciences (RKDA) disclosed Thursday a definitive securities exchange agreement to combine with Roosevelt Resources in an all-stock deal.
Shares of Arcadia surged 138% as intraday trading volume catapulted to nearly 65.8 million from a daily average of about 15,000.
Protara Therapeutics (TARA) said Thursday its investigational therapy TARA-002 demonstrated a so-called complete response rate of 72% at six months in a phase 2 trial involving patients with non-muscle invasive bladder cancer.
Shares more than doubled as intraday trading volume soared to over 99.8 million from a daily average of more than 196,000.
ZSpace (ZSPC) shares debuted on Nasdaq Thursday with an opening price of $5.80, above the initial public offering price of $5.
The shares recently changed hands at $16.01 apiece, up more than 220% from the IPO price, with an intraday trading volume of about 1.07 million shares.
Price: 6.80, Change: +3.99, Percent Change: +141.85
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