EcoR1 Capital, LLC - PROTHENA CORP PLC ownership

PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 193 filers reported holding PROTHENA CORP PLC in Q3 2021. The put-call ratio across all filers is 0.62 and the average weighting 0.4%.

Quarter-by-quarter ownership
EcoR1 Capital, LLC ownership history of PROTHENA CORP PLC
ValueSharesWeighting
Q3 2023$558,941,510
-29.3%
11,584,2800.0%18.85%
-2.7%
Q2 2023$790,974,638
+40.9%
11,584,2800.0%19.38%
+7.2%
Q1 2023$561,490,052
-19.6%
11,584,2800.0%18.08%
-14.9%
Q4 2022$697,952,870
-0.6%
11,584,2800.0%21.24%
+2.5%
Q3 2022$702,355,000
+123.3%
11,584,2800.0%20.73%
+91.0%
Q2 2022$314,513,000
-25.8%
11,584,2800.0%10.86%
-18.1%
Q1 2022$423,637,000
-24.0%
11,584,280
+2.7%
13.25%
-25.4%
Q4 2021$557,443,000
-30.6%
11,284,2800.0%17.76%
-36.5%
Q3 2021$803,779,000
+38.6%
11,284,2800.0%27.96%
+29.0%
Q2 2021$580,125,000
+104.7%
11,284,2800.0%21.68%
+72.4%
Q1 2021$283,461,000
+150.4%
11,284,280
+19.7%
12.57%
+106.6%
Q4 2020$113,214,000
+20.2%
9,426,6400.0%6.09%
-9.4%
Q3 2020$94,172,000
-4.5%
9,426,6400.0%6.72%
-7.8%
Q2 2020$98,603,000
-2.2%
9,426,6400.0%7.28%
-30.9%
Q1 2020$100,865,000
-32.4%
9,426,6400.0%10.54%
-21.7%
Q4 2019$149,224,000
+101.9%
9,426,6400.0%13.45%
+44.1%
Q3 2019$73,905,000
+866.7%
9,426,640
+1203.3%
9.33%
+1107.4%
Q2 2019$7,645,000
-13.3%
723,300
-0.4%
0.77%
-4.8%
Q1 2019$8,813,000
+2.1%
726,519
-13.3%
0.81%
-6.0%
Q4 2018$8,634,000838,2190.86%
Other shareholders
PROTHENA CORP PLC shareholders Q3 2021
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