Looks like there was some buyback blocks AH yesterday at $14.50. Here is an interesting post from Yahoo board (from ChinaFact) to your question:
Good catch!
Here are the rules for stock repurchases:
www.dorsey.com/Resources/Detail.a...
According to this article, it states "A separate broker is permitted to effect after-hours trades." Also says "Bids and purchases by or for an issuer in after-hours trading are permitted provided the issuer does not enter the opening bid in such trading and the purchase price does not exceed the lower of the closing price in the principal market for the security and any lower bids or sale prices subsequently reported in other markets."
Looks like they met the test and started buying back after hours today. Considering that CHBT raised money at $14.50 (after commissions) last Fall, they probably instructed their broker to buy any shares that are available at $14.50 or lower. So, it seems like we have a floor at $14.50. I loaded up on more shares at $14.08 today given this will be the last time I see shares under $14.50 again.
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