NuCana (NCNA) shares sank 67% amid heavy trading after the company said Tuesday it priced a direct offering of around 10.85 American depositary shares to raise about $7 million.
More than 32.5 million shares traded intraday compared with a daily average of about 2.4 million.
William Blair downgraded Vivid Seats (SEAT) to market perform from outperform.
Shares slumped 36% as intraday trading volume rose to over 9.8 million versus a daily average of about 1.6 million.
Piper Sandler downgraded Tactile Systems Technology (TCMD) to neutral from overweight while adjusting the stock's price target to $14 from $25.
Shares retreated 30% as intraday trading volume climbed to more than 1.49 million from a daily average of roughly 258,000.
Price: 0.36, Change: -0.74, Percent Change: -67.45