T. Rowe Price Associates’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
$930K Buy
95,649
+14,134
+17% +$130K ﹤0.01% 2197
2025
Q4
$779K Buy
81,515
+2,968
+4% +$30.2K ﹤0.01% 2190
2025
Q3
$767K Buy
78,547
+7,500
+11% +$57.6K ﹤0.01% 2183
2025
Q2
$432K Sell
71,047
-3,384,809
-98% -$25.4M ﹤0.01% 2369
2025
Q1
$42.8M Sell
3,455,856
-229,852
-6% -$3.25M 0.01% 763
2024
Q4
$51M Sell
3,685,708
-136,726
-4% -$2.16M 0.01% 748
2024
Q3
$64M Sell
3,822,434
-414,970
-10% -$8.92M 0.01% 687
2024
Q2
$87.5M Buy
4,237,404
+35,633
+0.8% +$771K 0.01% 574
2024
Q1
$104M Sell
4,201,771
-35,580
-0.8% -$1.06M 0.01% 539
2023
Q4
$154M Buy
4,237,351
+417,338
+11% +$16.1M 0.02% 464
2023
Q3
$184M Buy
3,820,013
+266,245
+7% +$15.8M 0.03% 406
2023
Q2
$243M Buy
3,553,768
+351,475
+11% +$22.7M 0.03% 364
2023
Q1
$155M Sell
3,202,293
-3,610
-0.1% -$191K 0.02% 425
2022
Q4
$193M Buy
3,205,903
+223,962
+8% +$13.1M 0.03% 383
2022
Q3
$181M Sell
2,981,941
-2,983,847
-50% -$94.3M 0.03% 382
2022
Q2
$162M Sell
5,965,788
-147,954
-2% -$4.33M 0.02% 534
2022
Q1
$224M Buy
6,113,742
+164,881
+3% +$5.94M 0.02% 501
2021
Q4
$294M Sell
5,948,861
-113,768
-2% -$6.31M 0.03% 455
2021
Q3
$432M Buy
6,062,629
+239,544
+4% +$14.9M 0.04% 373
2021
Q2
$299M Buy
5,823,085
+2,510,739
+76% +$78.3M 0.03% 455
2021
Q1
$83.2M Buy
3,312,346
+3,297,931
+22,878% +$62M 0.01% 829
2020
Q4
$173K Sell
14,415
-110
-0.8% -$1.3K ﹤0.01% 2576
2020
Q3
$145K Buy
+14,525
New +$175K ﹤0.01% 2482
2018
Q4
Sell
-465,273
Closed -$6.09M 2587
2018
Q3
$6.09M Sell
465,273
-332,981
-42% -$4.81M ﹤0.01% 1437
2018
Q2
$11.6M Sell
798,254
-4,878,333
-86% -$96.4M ﹤0.01% 1322
2018
Q1
$208M Sell
5,676,587
-427,172
-7% -$15.5M 0.03% 453
2017
Q4
$229M Buy
6,103,759
+654,868
+12% +$33.3M 0.04% 432
2017
Q3
$353M Buy
5,448,891
+1,026,626
+23% +$62.9M 0.06% 330
2017
Q2
$239M Sell
4,422,265
-60,499
-1% -$3.22M 0.04% 401
2017
Q1
$250M Buy
4,482,764
+1,167,587
+35% +$61.3M 0.05% 380
2016
Q4
$163M Sell
3,315,177
-45,373
-1% -$2.5M 0.03% 466
2016
Q3
$202M Buy
3,360,550
+22,167
+0.7% +$1.19M 0.04% 422
2016
Q2
$117M Buy
3,338,383
+10,400
+0.3% +$453K 0.02% 524
2016
Q1
$137M Buy
3,327,983
+227,300
+7% +$8.9M 0.03% 471
2015
Q4
$211M Buy
3,100,683
+1,580
+0.1% +$95.3K 0.04% 387
2015
Q3
$141M Sell
3,099,103
-376,093
-11% -$21.9M 0.03% 489
2015
Q2
$183M Buy
3,475,196
+35,900
+1% +$1.42M 0.04% 471
2015
Q1
$131M Buy
3,439,296
+2,800
+0.1% +$71.8K 0.03% 539
2014
Q4
$71.3M Buy
3,436,496
+490,300
+17% +$10.2M 0.02% 720
2014
Q3
$65.3M Buy
2,946,196
+10,200
+0.3% +$216K 0.01% 743
2014
Q2
$66.2M Buy
2,935,996
+680,600
+30% +$17M 0.01% 765
2014
Q1
$86.4M Buy
2,255,396
+798,590
+55% +$25.7M 0.02% 678
2013
Q4
$38.6M Buy
1,456,806
+1,259,022
+637% +$31.6M 0.01% 915
2013
Q3
$4M Buy
197,784
+61,900
+46% +$1.1M ﹤0.01% 1458
2013
Q2
$1.75M Buy
+135,884
New +$1.26M ﹤0.01% 1541

Other funds holding PRTA