Alector (ALEC) shares were up 6.5% in recent Monday trading after Mizuho upgraded the company's stock to outperform from neutral and raised its price target to $3.50 from $2.50.
The company's trading volume for the day stood at over 850,000 against a daily average of about 772,000 shares.
Price: 1.88, Change: +0.12, Percent Change: +6.53