Jane Street’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
$1.05M Sell
107,926
-320,725
-75% -$2.94M ﹤0.01% 6388
2025
Q4
$4.09M Sell
428,651
-191,141
-31% -$1.95M ﹤0.01% 3547
2025
Q3
$6.05M Buy
619,792
+502,339
+428% +$3.86M 0.01% 3140
2025
Q2
$713K Sell
117,453
-15,187
-11% -$114K ﹤0.01% 6267
2025
Q1
$1.64M Buy
132,640
+77,112
+139% +$1.09M ﹤0.01% 4684
2024
Q4
$769K Sell
55,528
-39,916
-42% -$630K ﹤0.01% 5880
2024
Q3
$1.6M Sell
95,444
-26,021
-21% -$559K ﹤0.01% 4942
2024
Q2
$2.51M Buy
121,465
+67,069
+123% +$1.45M ﹤0.01% 4117
2024
Q1
$1.35M Sell
54,396
-130,799
-71% -$3.89M ﹤0.01% 4849
2023
Q4
$6.73M Buy
185,195
+178,939
+2,860% +$6.89M 0.01% 2437
2023
Q3
$302K Sell
6,256
-47,219
-88% -$2.81M ﹤0.01% 7051
2023
Q2
$3.65M Buy
53,475
+34,082
+176% +$2.2M 0.01% 3192
2023
Q1
$940K Buy
+19,393
New +$1.02M ﹤0.01% 5111
2022
Q4
Hold
0
9957
2022
Q3
Sell
-25,168
Closed -$796K 10338
2022
Q2
$683K Buy
+25,168
New +$736K ﹤0.01% 6169
2022
Q1
Sell
-9,168
Closed -$330K 10939
2021
Q4
$453K Sell
9,168
-3,781
-29% -$210K ﹤0.01% 7452
2021
Q3
$922K Buy
+12,949
New +$804K ﹤0.01% 6075
2021
Q2
Hold
0
10330
2021
Q1
Hold
0
9527
2020
Q4
Sell
-23,592
Closed -$236K 8037
2020
Q3
$236K Sell
23,592
-21,308
-47% -$256K ﹤0.01% 6219
2020
Q2
$470K Buy
+44,900
New +$499K ﹤0.01% 5170
2019
Q1
Sell
-17,111
Closed -$176K 5519
2018
Q4
$176K Buy
+17,111
New +$203K ﹤0.01% 4516
2018
Q3
Sell
-10,417
Closed -$152K 5631
2018
Q2
$152K Sell
10,417
-313
-3% -$6.18K ﹤0.01% 4652
2018
Q1
$394K Buy
+10,730
New +$390K ﹤0.01% 3736
2017
Q4
Sell
-6,237
Closed -$404K 5106
2017
Q3
$404K Buy
+6,237
New +$382K ﹤0.01% 3363
2017
Q2
Sell
-8,731
Closed -$465K 4798
2017
Q1
$487K Buy
+8,731
New +$459K 0.01% 2910
2016
Q1
Sell
-3,402
Closed -$232K 4596
2015
Q4
$232K Buy
+3,402
New +$205K ﹤0.01% 3407
2014
Q1
Sell
-19,635
Closed -$521K 3007
2013
Q4
$521K Buy
+19,635
New +$492K 0.01% 1201

Other funds holding PRTA