SECTORAL ASSET MANAGEMENT INC - 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
SECTORAL ASSET MANAGEMENT INC ownership history of PROTEOSTASIS THERAPEUTICS IN
ValueSharesWeighting
Q1 2019$2,583,000
-49.6%
2,050,328
+29.6%
0.31%
-55.4%
Q4 2018$5,125,000
+193.0%
1,581,728
+427.2%
0.70%
+218.3%
Q4 2017$1,749,000300,0000.22%
Other shareholders
PROTEOSTASIS THERAPEUTICS IN shareholders Q4 2018
NameSharesValueWeighting ↓
Cormorant Asset Management, LP 3,804,027$17,803,0002.95%
HARBOURVEST PARTNERS LLC 440,627$2,062,0000.89%
NEA Management Company, LLC 3,556,778$16,646,0000.61%
Rock Springs Capital Management LP 450,000$2,106,0000.11%
Bain Capital Public Equity Management, LLC 263,498$1,233,0000.07%
ELEMENT CAPITAL MANAGEMENT LLC 65,973$309,0000.06%
Hillhouse Capital Management 865,923$4,053,0000.06%
SABBY MANAGEMENT, LLC 125,151$586,0000.04%
Marshall Wace North America L.P. 684,124$3,421,0000.02%
FNY Partners Fund LP 20,127$94,0000.02%
View complete list of PROTEOSTASIS THERAPEUTICS IN shareholders