Tue, Mar 31, 2026
Mar 31
150,000 shares @ $20.00
Increased holdings by +6.80%
15th largest trade (out of 51)
Large TradeCluster Buy
Trade made by a director
Part of a cluster of 8 transactions by 6 insiders
Unscheduled trade
0% win rate · -27.5% median edge vs SPY (10 trades, 90-day · small sample)
Price 15% below 200-day moving average
Small Cap stock — insider trades carry more weight
Recent insider activity at ZBIO
May 18MOULDER LEON O JRBought$1.01mApr 29MOULDER LEON O JRBought$616.70kApr 28MOULDER LEON O JRBought$450.50kMar 31Lu HongboBought$1.50mMar 31MOULDER LEON O JRBought$656.54kMar 31Fairmount Healthcare Fund II L.P.Bought$3.00mMar 31Kiselak TomasBought$3.00mMar 31Fairmount Funds Management LLCBought$3.00m