Bay City Capital Fund V Co-Investment Fund, L.P. is 10% at HYPERION THERAPEUTICS INC (HPTX). They have made 3 open-market trades across 2 companies since 2013, most recently 2020-03-16.
1 open-market purchase totalling $2.5M since 2013, against 2 sales. Too few scored purchases to measure a record yet.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.