David Shaw’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
Q2
$15.8M Sell
1,611,457
-151,890
-9% -$1.5M 0.01% 1465
2026
Q1
$17.1M Buy
1,763,347
+81,978
+5% +$751K 0.01% 1252
2025
Q4
$16.1M Buy
1,681,369
+365,951
+28% +$3.73M 0.01% 1384
2025
Q3
$12.8M Buy
1,315,418
+923,923
+236% +$7.1M 0.01% 1490
2025
Q2
$2.38M Buy
391,495
+373,692
+2,099% +$2.8M ﹤0.01% 2618
2025
Q1
$220K Buy
+17,803
New +$252K ﹤0.01% 3894
2023
Q2
Sell
-5,705
Closed -$277K 4484
2023
Q1
$277K Sell
5,705
-21,151
-79% -$1.12M ﹤0.01% 3779
2022
Q4
$1.62M Sell
26,856
-78,374
-74% -$4.59M ﹤0.01% 3103
2022
Q3
$6.38M Buy
105,230
+44,034
+72% +$1.39M 0.01% 1806
2022
Q2
$1.66M Sell
61,196
-25,957
-30% -$759K ﹤0.01% 3231
2022
Q1
$3.19M Sell
87,153
-24,912
-22% -$898K ﹤0.01% 2820
2021
Q4
$5.54M Buy
112,065
+78,744
+236% +$4.37M ﹤0.01% 2259
2021
Q3
$2.37M Buy
33,321
+13,026
+64% +$809K ﹤0.01% 2877
2021
Q2
$1.04M Sell
20,295
-39,003
-66% -$1.22M ﹤0.01% 3496
2021
Q1
$1.49M Sell
59,298
-154,311
-72% -$2.9M ﹤0.01% 2817
2020
Q4
$2.56M Sell
213,609
-80,859
-27% -$956K ﹤0.01% 2397
2020
Q3
$2.94M Sell
294,468
-54,909
-16% -$661K ﹤0.01% 2089
2020
Q2
$3.65M Buy
349,377
+10,928
+3% +$121K ﹤0.01% 1910
2020
Q1
$3.62M Sell
338,449
-6,163
-2% -$74.6K 0.01% 1716
2019
Q4
$5.46M Sell
344,612
-9,195
-3% -$98.6K 0.01% 1662
2019
Q3
$2.77M Sell
353,807
-74,423
-17% -$661K ﹤0.01% 2116
2019
Q2
$4.53M Sell
428,230
-90,571
-17% -$930K 0.01% 1657
2019
Q1
$6.29M Buy
518,801
+460,223
+786% +$5.75M 0.01% 1392
2018
Q4
$603K Buy
58,578
+16,779
+40% +$199K ﹤0.01% 2984
2018
Q3
$547K Sell
41,799
-14,787
-26% -$214K ﹤0.01% 3056
2018
Q2
$825K Sell
56,586
-6,358
-10% -$126K ﹤0.01% 2818
2018
Q1
$2.31M Buy
62,944
+57,044
+967% +$2.07M ﹤0.01% 1953
2017
Q4
$221K Sell
5,900
-1,142
-16% -$58.1K ﹤0.01% 3391
2017
Q3
$456K Sell
7,042
-797
-10% -$48.8K ﹤0.01% 2962
2017
Q2
$424K Buy
+7,839
New +$418K ﹤0.01% 2883
2015
Q4
Sell
-12,268
Closed -$740K 3949
2015
Q3
$556K Sell
12,268
-4,100
-25% -$239K ﹤0.01% 2993
2015
Q2
$862K Sell
16,368
-28,731
-64% -$1.13M ﹤0.01% 2814
2015
Q1
$1.72M Sell
45,099
-19,078
-30% -$489K ﹤0.01% 2141
2014
Q4
$1.33M Buy
+64,177
New +$1.34M ﹤0.01% 2612
2014
Q3
Sell
-91,337
Closed -$2.06M 4332
2014
Q2
$2.06M Buy
+91,337
New +$2.28M ﹤0.01% 2279

Other funds holding PRTA

David Shaw's PRTA Position: Q2 2026 in Review

David Shaw reduced its Prothena Corp (PRTA) stake by 8.6% in Q2 2026, selling an estimated $1.5M and leaving 1,611,457 shares worth $15.8M. The position accounts for 0.01% of the portfolio, ranked #1465.

David Shaw first reported a position in PRTA in Q2 2014 and has held it in 35 quarters since. The position peaked at $17.1M in Q1 2026. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • David Shaw held 1,611,457 shares of Prothena Corp worth $15.8M as of Q2 2026.
  • David Shaw sold 151,890 Prothena Corp shares in Q2 2026, an estimated $1.5M.
  • Prothena Corp made up 0.01% of David Shaw's portfolio in Q2 2026, its #1465 holding.
  • David Shaw first reported a position in Prothena Corp in Q2 2014 and has held it in 35 quarters since.
  • David Shaw's Prothena Corp position peaked at $17.1M in Q1 2026.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.