SPHERA FUNDS MANAGEMENT LTD. - PROTHENA CORP PLC ownership

PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 146 filers reported holding PROTHENA CORP PLC in Q2 2017. The put-call ratio across all filers is 2.27 and the average weighting 0.2%.

Quarter-by-quarter ownership
SPHERA FUNDS MANAGEMENT LTD. ownership history of PROTHENA CORP PLC
ValueSharesWeighting
Q4 2017$7,685,000
+97.8%
205,000
+241.7%
0.90%
+62.8%
Q3 2017$3,886,000
+79.5%
60,000
+50.0%
0.55%
+50.5%
Q2 2017$2,165,000
+5.8%
40,000
-11.4%
0.37%
+41.0%
Q3 2015$2,046,000
-66.3%
45,133
-60.8%
0.26%
-56.1%
Q2 2015$6,064,000
+80.4%
115,133
+30.6%
0.59%
+69.7%
Q1 2015$3,361,000
+158.5%
88,133
+40.7%
0.35%
+58.4%
Q4 2014$1,300,000
+96.1%
62,632
+109.4%
0.22%
+169.5%
Q3 2014$663,000
-68.5%
29,907
-45.6%
0.08%
-83.0%
Q1 2014$2,107,000
+58.9%
55,000
+10.0%
0.48%
+30.4%
Q4 2013$1,326,00050,0000.37%
Other shareholders
PROTHENA CORP PLC shareholders Q2 2017
NameSharesValueWeighting ↓
Woodford Investment Management Ltd 10,304,751$360,254,00016.93%
Palo Alto Investors LP 788,618$27,570,0002.08%
Redmile Group, LLC 487,406$17,040,0001.63%
TURNER INVESTMENTS LLC 78,870$2,757,0000.86%
Rock Springs Capital Management LP 308,000$10,768,0000.80%
SECTORAL ASSET MANAGEMENT INC 174,746$6,109,0000.63%
BB BIOTECH AG 350,000$12,236,0000.48%
MARINER INVESTMENT GROUP LLC 33,104$1,157,0000.39%
PINNACLE ASSOCIATES LTD 436,417$15,257,0000.33%
OAK RIDGE INVESTMENTS LLC 364,250$12,734,0000.33%
View complete list of PROTHENA CORP PLC shareholders