A Clayton Struve

Insider Trading: Purchases
Symbol Price Amount Total Value Remaining Holdings Date Form 4
PBIO $0.53 4,000 $2,120.00 112,585 2012-04-16 Filing
PBIO $0.60 2,000 $1,200.00 108,585 2012-04-13 Filing
PBIO $0.55 4,000 $2,200.00 106,585 2012-04-11 Filing
PBIO $0.55 2,000 $1,100.00 102,585 2012-04-10 Filing