Granahan Investment Management - PROTHENA CORP PLC ownership

PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 189 filers reported holding PROTHENA CORP PLC in Q1 2023. The put-call ratio across all filers is 0.56 and the average weighting 0.4%.

Quarter-by-quarter ownership
Granahan Investment Management ownership history of PROTHENA CORP PLC
ValueSharesWeighting
Q3 2023$16,794,136
-16.6%
348,065
+18.0%
0.60%
-3.5%
Q2 2023$20,146,492
+78.7%
295,057
+26.8%
0.62%
+80.8%
Q1 2023$11,275,479
-6.4%
232,628
+16.4%
0.34%
-6.8%
Q4 2022$12,045,542
+40.8%
199,926
+41.7%
0.37%
+31.9%
Q3 2022$8,555,000
+97.8%
141,108
-11.4%
0.28%
+88.5%
Q2 2022$4,326,000
-4.7%
159,325
+28.4%
0.15%
+31.0%
Q1 2022$4,539,000
+1.9%
124,106
+37.6%
0.11%
+22.8%
Q4 2021$4,455,000
+38.1%
90,179
+99.1%
0.09%
+50.8%
Q3 2021$3,227,000
+80.8%
45,304
+33.7%
0.06%
+19.6%
Q2 2015$1,785,000
+38.1%
33,8940.0%0.05%
+37.8%
Q1 2015$1,293,000
+83.7%
33,8940.0%0.04%
+76.2%
Q4 2014$704,000
-6.3%
33,8940.0%0.02%
-8.7%
Q3 2014$751,000
-1.7%
33,8940.0%0.02%
+4.5%
Q2 2014$764,000
-41.1%
33,8940.0%0.02%
-37.1%
Q1 2014$1,298,000
+44.4%
33,8940.0%0.04%
+52.2%
Q4 2013$899,000
+31.0%
33,8940.0%0.02%
+27.8%
Q3 2013$686,000
+42.0%
33,894
-9.4%
0.02%
+28.6%
Q2 2013$483,00037,3940.01%
Other shareholders
PROTHENA CORP PLC shareholders Q1 2023
NameSharesValueWeighting ↓
Woodford Investment Management Ltd 3,708,171$141,430,00020.08%
TURNER INVESTMENTS LLC 249,990$9,535,0001.71%
Palo Alto Investors LP 695,918$26,542,0001.31%
Rock Springs Capital Management LP 237,500$9,058,0000.85%
MARINER INVESTMENT GROUP LLC 43,600$1,663,0000.45%
WESTFIELD CAPITAL MANAGEMENT CO LP 1,734,928$66,170,0000.38%
SPHERA FUNDS MANAGEMENT LTD. 88,133$3,361,0000.35%
CLOUGH CAPITAL PARTNERS L P 145,200$5,538,0000.18%
Visium Asset Management, LP 302,039$11,520,0000.17%
EAM Investors, LLC 32,250$1,230,0000.14%
View complete list of PROTHENA CORP PLC shareholders