Tower Research Capital (TRC)’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
$45.1K Buy
4,637
+1,811
+64% +$16.6K ﹤0.01% 2831
2025
Q4
$27K Buy
2,826
+1,541
+120% +$15.7K ﹤0.01% 2876
2025
Q3
$12.5K Sell
1,285
-11,424
-90% -$87.8K ﹤0.01% 3769
2025
Q2
$77.1K Buy
12,709
+10,815
+571% +$81.2K ﹤0.01% 2600
2025
Q1
$23K Sell
1,894
-14,932
-89% -$211K ﹤0.01% 2828
2024
Q4
$233K Buy
16,826
+11,369
+208% +$179K ﹤0.01% 1613
2024
Q3
$91.3K Sell
5,457
-1,533
-22% -$33K ﹤0.01% 2314
2024
Q2
$144K Buy
6,990
+6,406
+1,097% +$139K ﹤0.01% 2325
2024
Q1
$14.5K Sell
584
-4,435
-88% -$132K ﹤0.01% 3308
2023
Q4
$182K Buy
5,019
+3,621
+259% +$139K ﹤0.01% 2179
2023
Q3
$67.5K Sell
1,398
-1,137
-45% -$67.5K ﹤0.01% 2302
2023
Q2
$173K Buy
2,535
+732
+41% +$47.2K 0.01% 1656
2023
Q1
$88K Buy
1,803
+257
+17% +$13.6K ﹤0.01% 1987
2022
Q4
$93K Sell
1,546
-6,767
-81% -$396K ﹤0.01% 1905
2022
Q3
$504K Buy
8,313
+3,257
+64% +$103K 0.01% 1134
2022
Q2
$137K Sell
5,056
-3,167
-39% -$92.7K ﹤0.01% 2046
2022
Q1
$301K Buy
8,223
+4,827
+142% +$174K ﹤0.01% 1465
2021
Q4
$168K Sell
3,396
-1,922
-36% -$107K ﹤0.01% 1892
2021
Q3
$378K Buy
5,318
+3,250
+157% +$202K 0.01% 1193
2021
Q2
$106K Buy
2,068
+140
+7% +$4.37K ﹤0.01% 2378
2021
Q1
$48K Sell
1,928
-1,453
-43% -$27.3K ﹤0.01% 3160
2020
Q4
$41K Sell
3,381
-9,177
-73% -$109K ﹤0.01% 3305
2020
Q3
$126K Buy
12,558
+3,359
+37% +$40.4K ﹤0.01% 2956
2020
Q2
$96K Buy
+9,199
New +$102K ﹤0.01% 2495
2019
Q4
Sell
-252
Closed -$2K 4202
2019
Q3
$2K Buy
+252
New +$2.24K ﹤0.01% 3726
2019
Q2
Sell
-4,626
Closed -$56K 4154
2019
Q1
$56K Buy
4,626
+4,621
+92,420% +$57.7K ﹤0.01% 1721
2018
Q4
$0 Buy
+5
New +$59 ﹤0.01% 4249
2018
Q2
Sell
-2,602
Closed -$96K 3967
2018
Q1
$96K Buy
2,602
+2,023
+349% +$73.6K 0.01% 1290
2017
Q4
$22K Sell
579
-6,986
-92% -$356K ﹤0.01% 1988
2017
Q3
$490K Buy
7,565
+7,447
+6,311% +$456K 0.04% 264
2017
Q2
$6K Sell
118
-188
-61% -$10K ﹤0.01% 1910
2017
Q1
$17K Sell
306
-311
-50% -$16.3K ﹤0.01% 1401
2016
Q4
$31K Sell
617
-435
-41% -$24K ﹤0.01% 1766
2016
Q3
$63K Buy
+1,052
New +$56.4K 0.01% 1022
2016
Q2
Sell
-49
Closed -$2K 4853
2016
Q1
$2K Sell
49
-151
-76% -$5.91K ﹤0.01% 3425
2015
Q4
$14K Sell
200
-137
-41% -$8.26K ﹤0.01% 1712
2015
Q3
$15K Sell
337
-548
-62% -$31.9K ﹤0.01% 1976
2015
Q2
$46K Sell
885
-2,326
-72% -$91.8K ﹤0.01% 1433
2015
Q1
$123K Buy
3,211
+2,670
+494% +$68.5K 0.02% 734
2014
Q4
$11K Buy
541
+460
+568% +$9.6K ﹤0.01% 2077
2014
Q3
$2K Sell
81
-2,496
-97% -$52.9K ﹤0.01% 3843
2014
Q2
$58K Buy
2,577
+1,283
+99% +$32.1K 0.01% 1198
2014
Q1
$50K Buy
1,294
+944
+270% +$30.4K 0.01% 1094
2013
Q4
$9K Buy
+350
New +$8.78K ﹤0.01% 3100
2013
Q3
Sell
-3,000
Closed -$39K 4775
2013
Q2
$39K Buy
+3,000
New +$27.9K ﹤0.01% 1128

Other funds holding PRTA