CHARLES SCHWAB INVESTMENT MANAGEMENT INC - PROTHENA CORP PLC ownership

PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 140 filers reported holding PROTHENA CORP PLC in Q4 2020. The put-call ratio across all filers is 0.56 and the average weighting 0.1%.

Quarter-by-quarter ownership
CHARLES SCHWAB INVESTMENT MANAGEMENT INC ownership history of PROTHENA CORP PLC
ValueSharesWeighting
Q3 2023$14,886,910
-30.2%
308,537
-1.3%
0.00%
-33.3%
Q2 2023$21,336,339
+47.2%
312,483
+4.5%
0.01%
+50.0%
Q1 2023$14,491,124
-20.1%
298,971
-0.6%
0.00%
-33.3%
Q4 2022$18,126,213
+4.6%
300,850
+5.3%
0.01%0.0%
Q3 2022$17,325,000
+130.0%
285,742
+3.0%
0.01%
+100.0%
Q2 2022$7,534,000
-27.6%
277,475
-2.4%
0.00%0.0%
Q1 2022$10,401,000
-17.6%
284,402
+11.3%
0.00%
-25.0%
Q4 2021$12,628,000
-26.7%
255,614
+5.8%
0.00%
-33.3%
Q3 2021$17,218,000
+61.9%
241,715
+16.9%
0.01%
+50.0%
Q2 2021$10,633,000
+127.1%
206,826
+11.0%
0.00%
+100.0%
Q1 2021$4,683,000
+113.5%
186,391
+2.1%
0.00%
+100.0%
Q4 2020$2,193,000
+20.0%
182,539
-0.2%
0.00%0.0%
Q3 2020$1,828,000
-26.5%
182,961
-23.0%
0.00%0.0%
Q2 2020$2,486,000
-4.2%
237,588
-2.0%
0.00%
-50.0%
Q1 2020$2,594,000
-31.4%
242,406
+1.4%
0.00%0.0%
Q4 2019$3,784,000
+106.6%
239,006
+2.3%
0.00%
+100.0%
Q3 2019$1,832,000
-26.0%
233,616
-0.3%
0.00%
-50.0%
Q2 2019$2,477,000
-6.8%
234,340
+7.0%
0.00%0.0%
Q1 2019$2,657,000
+17.1%
219,039
-0.6%
0.00%0.0%
Q4 2018$2,269,000
-13.9%
220,269
+9.4%
0.00%0.0%
Q3 2018$2,635,000
-11.8%
201,390
-1.7%
0.00%0.0%
Q2 2018$2,986,000
-53.6%
204,787
+16.9%
0.00%
-60.0%
Q1 2018$6,434,000
-5.6%
175,254
-3.6%
0.01%0.0%
Q4 2017$6,819,000
-39.0%
181,879
+5.4%
0.01%
-50.0%
Q3 2017$11,178,000
+26.2%
172,578
+5.4%
0.01%
+25.0%
Q2 2017$8,859,000
+3.2%
163,681
+6.4%
0.01%
-11.1%
Q1 2017$8,584,000
+27.2%
153,857
+12.1%
0.01%
+28.6%
Q4 2016$6,749,000
-13.5%
137,192
+5.4%
0.01%
-22.2%
Q3 2016$7,805,000
+98.7%
130,146
+15.8%
0.01%
+80.0%
Q2 2016$3,929,000
-19.5%
112,362
-5.2%
0.01%
-16.7%
Q1 2016$4,878,000
-33.6%
118,492
+9.9%
0.01%
-40.0%
Q4 2015$7,347,000
+74.5%
107,866
+16.2%
0.01%
+66.7%
Q3 2015$4,211,000
+46.0%
92,860
+69.5%
0.01%
+50.0%
Q2 2015$2,885,000
+56.5%
54,772
+13.4%
0.00%
+33.3%
Q1 2015$1,843,000
+83.7%
48,3030.0%0.00%
+50.0%
Q4 2014$1,003,000
-6.3%
48,3030.0%0.00%0.0%
Q3 2014$1,071,000
+47.9%
48,303
+50.5%
0.00%
+100.0%
Q2 2014$724,000
-7.9%
32,100
+56.6%
0.00%0.0%
Q1 2014$786,000
+44.5%
20,5000.0%0.00%0.0%
Q4 2013$544,000
+60.5%
20,500
+21.3%
0.00%0.0%
Q3 2013$339,000
+54.1%
16,9000.0%0.00%
Q2 2013$220,00016,9000.00%
Other shareholders
PROTHENA CORP PLC shareholders Q4 2020
NameSharesValueWeighting ↓
EcoR1 Capital, LLC 11,284,280$557,443,00017.76%
Prosight Management, LP 441,000$21,785,00013.04%
First Light Asset Management, LLC 1,622,941$80,173,0005.74%
Palo Alto Investors LP 1,685,282$83,253,0005.32%
Birchview Capital, LP 40,247$1,988,0001.28%
DCF Advisers, LLC 60,000$2,964,0001.20%
HighVista Strategies LLC 28,078$1,387,0001.10%
APOGEM CAPITAL LLC 33,212$1,641,0001.08%
Redmile Group, LLC 765,675$37,824,0000.86%
Rock Springs Capital Management LP 647,730$31,998,0000.74%
View complete list of PROTHENA CORP PLC shareholders