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
RCMNY
ACM
PAI
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.