ESSEX INVESTMENT MANAGEMENT CO LLC - PROTEOSTASIS THERAPEUTICS IN ownership

PROTEOSTASIS THERAPEUTICS IN's ticker is PTI and the CUSIP is 74373B109. A total of 90 filers reported holding PROTEOSTASIS THERAPEUTICS IN in Q4 2018. The put-call ratio across all filers is 0.75 and the average weighting 0.1%.

Quarter-by-quarter ownership
ESSEX INVESTMENT MANAGEMENT CO LLC ownership history of PROTEOSTASIS THERAPEUTICS IN
ValueSharesWeighting
Q3 2018$234,000
-13.3%
96,9000.0%0.03%
-20.6%
Q2 2018$270,000
-41.3%
96,9000.0%0.03%
-43.3%
Q1 2018$460,00096,9000.06%
Other shareholders
PROTEOSTASIS THERAPEUTICS IN shareholders Q4 2018
NameSharesValueWeighting ↓
VHCP Management III, LLC 722,890$911,0000.53%
GREAT POINT PARTNERS LLC 3,500,000$4,410,0000.44%
NEA Management Company, LLC 5,556,778$7,002,0000.36%
SECTORAL ASSET MANAGEMENT INC 2,050,328$2,583,0000.31%
HARBOURVEST PARTNERS LLC 440,627$555,0000.20%
VHCP Management II, LLC 427,110$538,0000.16%
Endurant Capital Management LP 130,600$165,0000.06%
ALGERT GLOBAL LLC 64,300$81,0000.05%
Bain Capital Public Equity Management, LLC 231,418$292,0000.03%
Kazazian Asset Management, LLC 14,436$18,0000.02%
View complete list of PROTEOSTASIS THERAPEUTICS IN shareholders