GSA Capital Partners’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 | – | Sell |
-32,499
| Closed | -$316K | – | 2088 |
|
|
2026
Q1 | $316K | Buy |
32,499
+6,145
| +23% | +$56.3K | 0.02% | 1217 |
|
|
2025
Q4 | $252K | Buy |
+26,354
| New | +$268K | 0.02% | 1269 |
|
|
2025
Q3 | – | Sell |
-210,555
| Closed | -$1.28M | – | 2007 |
|
|
2025
Q2 | $1.28M | Buy |
+210,555
| New | +$1.58M | 0.09% | 320 |
|
|
2024
Q4 | – | Sell |
-28,941
| Closed | -$484K | – | 1942 |
|
|
2024
Q3 | $484K | Buy |
+28,941
| New | +$622K | 0.04% | 925 |
|
|
2024
Q1 | – | Sell |
-34,850
| Closed | -$1.27M | – | 1896 |
|
|
2023
Q4 | $1.27M | Buy |
+34,850
| New | +$1.34M | 0.11% | 280 |
|
|
2023
Q2 | – | Sell |
-20,861
| Closed | -$1.01M | – | 1855 |
|
|
2023
Q1 | $1.01M | Buy |
+20,861
| New | +$1.1M | 0.1% | 303 |
|
|
2022
Q2 | – | Sell |
-31,142
| Closed | -$1.14M | – | 1724 |
|
|
2022
Q1 | $1.14M | Buy |
31,142
+17,883
| +135% | +$645K | 0.15% | 135 |
|
|
2021
Q4 | $655K | Buy |
13,259
+9,648
| +267% | +$535K | 0.08% | 419 |
|
|
2021
Q3 | $257K | Buy |
+3,611
| New | +$224K | 0.03% | 1109 |
|
|
2021
Q1 | – | Sell |
-15,095
| Closed | -$181K | – | 1408 |
|
|
2020
Q4 | $181K | Buy |
+15,095
| New | +$179K | 0.03% | 1020 |
|
|
2019
Q4 | – | Sell |
-19,805
| Closed | -$155K | – | 1668 |
|
|
2019
Q3 | $155K | Buy |
+19,805
| New | +$176K | 0.02% | 1223 |
|
|
2017
Q2 | – | Sell |
-7,105
| Closed | -$396K | – | 1895 |
|
|
2017
Q1 | $396K | Buy |
+7,105
| New | +$373K | 0.02% | 1227 |
|
|
2016
Q3 | – | Sell |
-8,200
| Closed | -$287K | – | 1923 |
|
|
2016
Q2 | $287K | Buy |
8,200
+2,200
| +37% | +$95.8K | 0.02% | 1406 |
|
|
2016
Q1 | $247K | Sell |
6,000
-8,120
| -58% | -$318K | 0.02% | 1398 |
|
|
2015
Q4 | $962K | Sell |
14,120
-12,699
| -47% | -$766K | 0.05% | 737 |
|
|
2015
Q3 | $1.22M | Buy |
26,819
+22,539
| +527% | +$1.31M | 0.06% | 521 |
|
|
2015
Q2 | $225K | Buy |
+4,280
| New | +$169K | 0.01% | 1767 |
|
|
2014
Q2 | – | Sell |
-6,500
| Closed | -$249K | – | 1933 |
|
|
2014
Q1 | $249K | Sell |
6,500
-3,500
| -35% | -$113K | 0.02% | 1256 |
|
|
2013
Q4 | $265K | Buy |
+10,000
| New | +$251K | 0.02% | 1295 |
|
Other funds holding PRTA
RCMNY
ACM
PAI
GSA Capital Partners's PRTA Position: Q2 2026 in Review
GSA Capital Partners sold out of Prothena Corp (PRTA) in Q2 2026, closing a stake of 32,499 shares — an estimated $316K sold.
GSA Capital Partners first reported a position in PRTA in Q4 2013 and held it in 19 quarters. The position peaked at $1.28M in Q2 2025. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.
- GSA Capital Partners reported no remaining Prothena Corp position as of Q2 2026 after selling out during the quarter.
- GSA Capital Partners sold 32,499 Prothena Corp shares in Q2 2026, an estimated $316K.
- GSA Capital Partners first reported a position in Prothena Corp in Q4 2013 and held it in 19 quarters.
- GSA Capital Partners's Prothena Corp position peaked at $1.28M in Q2 2025.
- 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.
Based on GSA Capital Partners's 13F filing for Q2 2026, filed 6 Aug 2026.