Qube Research & Technologies (QRT)
PRTA icon

Qube Research & Technologies (QRT)’s Prothena Corp PRTA Stock Holding History

Qube Research & Technologies (QRT)’s Portfolio PRTA Stock Details PRTA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$7.75M Buy
791,169
+176,566
+29% +$1.74M 0.01% 1417
2026
Q1 		$5.97M Buy
614,603
+206,914
+51% +$1.9M 0.01% 1568
2025
Q4 		$3.89M Buy
407,689
+153,444
+60% +$1.56M ﹤0.01% 1914
2025
Q3 		$2.48M Sell
254,245
-160,583
-39% -$1.23M ﹤0.01% 2132
2025
Q2 		$2.52M Buy
+414,828
New +$3.11M ﹤0.01% 2100
2024
Q4 		– Sell
-13,320
Closed -$223K – 3754
2024
Q3 		$223K Buy
+13,320
New +$286K ﹤0.01% 2539
2024
Q2 		– Sell
-195,446
Closed -$4.84M – 4525
2024
Q1 		$4.84M Sell
195,446
-8,236
-4% -$245K 0.01% 1249
2023
Q4 		$7.4M Buy
203,682
+119,029
+141% +$4.58M 0.01% 857
2023
Q3 		$4.08M Buy
84,653
+43,256
+104% +$2.57M 0.01% 1031
2023
Q2 		$2.83M Buy
41,397
+33,159
+403% +$2.14M 0.01% 910
2023
Q1 		$399K Buy
8,238
+1,038
+14% +$54.8K ﹤0.01% 1638
2022
Q4 		$434K Buy
+7,200
New +$422K ﹤0.01% 1528
2022
Q3 		– Sell
-13,878
Closed -$377K – 2910
2022
Q2 		$377K Buy
13,878
+7,909
+133% +$231K ﹤0.01% 1523
2022
Q1 		$218K Sell
5,969
-13,864
-70% -$500K ﹤0.01% 1919
2021
Q4 		$980K Buy
+19,833
New +$1.1M 0.01% 1200
2020
Q4 		– Sell
-14,246
Closed -$142K – 2122
2020
Q3 		$142K Sell
14,246
-5,205
-27% -$62.6K ﹤0.01% 1453
2020
Q2 		$203K Buy
+19,451
New +$216K ﹤0.01% 1429

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return

Qube Research & Technologies (QRT)'s PRTA Position: Q2 2026 in Review

Qube Research & Technologies (QRT) increased its Prothena Corp (PRTA) stake by 29% in Q2 2026, buying an estimated $1.74M and bringing the position to 791,169 shares worth $7.75M. The position accounts for 0.01% of the portfolio, ranked #1417.

Qube Research & Technologies (QRT) first reported a position in PRTA in Q2 2020 and has held it in 17 quarters since. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • Qube Research & Technologies (QRT) held 791,169 shares of Prothena Corp worth $7.75M as of Q2 2026.
  • Qube Research & Technologies (QRT) bought 176,566 Prothena Corp shares in Q2 2026, an estimated $1.74M.
  • Prothena Corp made up 0.01% of Qube Research & Technologies (QRT)'s portfolio in Q2 2026, its #1417 holding.
  • Qube Research & Technologies (QRT) first reported a position in Prothena Corp in Q2 2020 and has held it in 17 quarters since.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q2 2026, filed 14 Aug 2026.