Citadel Advisors’s Prothena Corp PRTA Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$4.23M Sell
435,574
-476,808
-52% -$4.37M ﹤0.01% 4615
2025
Q4
$8.71M Buy
912,382
+145,277
+19% +$1.48M 0.01% 3439
2025
Q3
$7.49M Sell
767,105
-380,517
-33% -$2.92M 0.01% 3676
2025
Q2
$6.97M Buy
1,147,622
+1,058,223
+1,184% +$7.94M 0.01% 3556
2025
Q1
$1.11M Buy
89,399
+47,881
+115% +$677K ﹤0.01% 6740
2024
Q4
$575K Sell
41,518
-196,165
-83% -$3.09M ﹤0.01% 8252
2024
Q3
$3.98M Sell
237,683
-115,470
-33% -$2.48M ﹤0.01% 4321
2024
Q2
$7.29M Buy
353,153
+118,227
+50% +$2.56M 0.01% 3217
2024
Q1
$5.82M Buy
234,926
+96,339
+70% +$2.87M 0.01% 3707
2023
Q4
$5.04M Sell
138,587
-10,348
-7% -$398K 0.01% 3772
2023
Q3
$7.19M Buy
148,935
+128,493
+629% +$7.63M 0.01% 3115
2023
Q2
$1.4M Sell
20,442
-17,259
-46% -$1.11M ﹤0.01% 5802
2023
Q1
$1.83M Buy
37,701
+37,452
+15,041% +$1.98M ﹤0.01% 5561
2022
Q4
$15K Sell
249
-188,394
-100% -$11M ﹤0.01% 13359
2022
Q3
$11.4M Buy
188,643
+33,132
+21% +$1.05M 0.01% 2577
2022
Q2
$4.22M Buy
155,511
+111,996
+257% +$3.28M 0.01% 4123
2022
Q1
$1.59M Buy
43,515
+15,822
+57% +$570K ﹤0.01% 6598
2021
Q4
$1.37M Sell
27,693
-75,812
-73% -$4.2M ﹤0.01% 7109
2021
Q3
$7.37M Buy
+103,505
New +$6.43M 0.01% 3595
2021
Q2
Sell
-56,273
Closed -$1.76M 14365
2021
Q1
$1.41M Buy
56,273
+15,239
+37% +$287K ﹤0.01% 7252
2020
Q4
$493K Sell
41,034
-81,256
-66% -$961K ﹤0.01% 8176
2020
Q3
$1.22M Sell
122,290
-73,474
-38% -$884K ﹤0.01% 5667
2020
Q2
$2.05M Sell
195,764
-560,667
-74% -$6.23M ﹤0.01% 4536
2020
Q1
$8.09M Sell
756,431
-167,775
-18% -$2.03M 0.01% 2099
2019
Q4
$14.6M Sell
924,206
-466,106
-34% -$5M 0.02% 1801
2019
Q3
$10.9M Sell
1,390,312
-101,290
-7% -$900K 0.01% 2117
2019
Q2
$15.8M Buy
1,491,602
+38,849
+3% +$399K 0.02% 1659
2019
Q1
$17.6M Buy
1,452,753
+255,589
+21% +$3.19M 0.02% 1457
2018
Q4
$12.3M Buy
1,197,164
+582,464
+95% +$6.92M 0.02% 1671
2018
Q3
$8.04M Buy
614,700
+32,784
+6% +$473K 0.01% 2393
2018
Q2
$8.48M Buy
+581,916
New +$11.5M 0.01% 2130
2018
Q1
Sell
-66,868
Closed -$2.43M 8736
2017
Q4
$2.51M Buy
+66,868
New +$3.4M ﹤0.01% 3323
2017
Q3
Sell
-243,642
Closed -$14.9M 8008
2017
Q2
$13.2M Sell
243,642
-40,855
-14% -$2.18M 0.02% 1257
2017
Q1
$15.9M Buy
284,497
+263,805
+1,275% +$13.9M 0.03% 1114
2016
Q4
$1.02M Sell
20,692
-41,432
-67% -$2.29M ﹤0.01% 3827
2016
Q3
$3.73M Buy
+62,124
New +$3.33M 0.01% 2278
2016
Q2
Hold
0
7383
2016
Q1
Sell
-469,605
Closed -$18.4M 7764
2015
Q4
$32M Sell
469,605
-354,845
-43% -$21.4M 0.06% 584
2015
Q3
$37.4M Buy
824,450
+406,560
+97% +$23.7M 0.06% 560
2015
Q2
$22M Buy
417,890
+313,553
+301% +$12.4M 0.03% 934
2015
Q1
$3.98M Buy
+104,337
New +$2.68M 0.01% 2268
2014
Q4
Sell
-26,400
Closed -$585K 8692
2014
Q3
$585K Sell
26,400
-107,003
-80% -$2.27M ﹤0.01% 4408
2014
Q2
$3.01M Buy
+133,403
New +$3.34M 0.01% 2331

Other funds holding PRTA