MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - 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 Q1 2021. The put-call ratio across all filers is 0.25 and the average weighting 0.2%.

Quarter-by-quarter ownership
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ownership history of PROTHENA CORP PLC
ValueSharesWeighting
Q1 2022$496,000
-76.0%
13,556
-67.6%
0.00%
-100.0%
Q4 2021$2,068,000
-32.0%
41,858
-2.0%
0.00%0.0%
Q3 2021$3,042,000
+36.8%
42,706
-1.3%
0.00%0.0%
Q2 2021$2,224,000
+20.7%
43,268
-41.0%
0.00%0.0%
Q1 2021$1,842,000
+41.3%
73,339
-32.5%
0.00%
Q4 2020$1,304,000
+49.7%
108,594
+24.5%
0.00%
Q3 2020$871,00087,2210.00%
Other shareholders
PROTHENA CORP PLC shareholders Q1 2021
NameSharesValueWeighting ↓
EcoR1 Capital, LLC 11,584,280$558,941,51018.85%
Finepoint Capital LP 349,300$16,853,7258.39%
Palo Alto Investors LP 1,657,458$79,972,3497.57%
Birchview Capital, LP 169,574$8,181,9466.96%
First Light Asset Management, LLC 1,494,039$72,087,3826.85%
DCF Advisers, LLC 82,950$4,002,3382.18%
Prosight Management, LP 126,202$6,089,2471.93%
PFM Health Sciences, LP 836,571$40,364,5511.90%
SECTORAL ASSET MANAGEMENT INC 172,407$8,318,6381.62%
Boxer Capital, LLC 625,000$30,156,2501.60%
View complete list of PROTHENA CORP PLC shareholders