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
Q3 		$3.88M Sell
462,862
-328,307
-41% -$2.93M ﹤0.01% 1956
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 $2.32T AUM 44.66% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $85.7B AUM 51.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $71.4B AUM 33.43% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $73.4B AUM 32.8% 1-Year Est. Return
Mariner
Mariner Overland Park, Kansas $100B AUM 26.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM

Qube Research & Technologies (QRT)'s PRTA Position: Q3 2026 in Review

Qube Research & Technologies (QRT) reduced its Prothena Corp (PRTA) stake by 41% in Q3 2026, selling an estimated $2.93M and leaving 462,862 shares worth $3.88M. The position accounts for ﹤0.01% of the portfolio, ranked #1956.

Qube Research & Technologies (QRT) first reported a position in PRTA in Q2 2020 and has held it in 18 quarters since. The position peaked at $7.75M in Q2 2026. 123 funds tracked by Wall St. Rank hold PRTA as of Q3 2026.

  • Qube Research & Technologies (QRT) held 462,862 shares of Prothena Corp worth $3.88M as of Q3 2026.
  • Qube Research & Technologies (QRT) sold 328,307 Prothena Corp shares in Q3 2026, an estimated $2.93M.
  • Prothena Corp made up ﹤0.01% of Qube Research & Technologies (QRT)'s portfolio in Q3 2026, its #1956 holding.
  • Qube Research & Technologies (QRT) first reported a position in Prothena Corp in Q2 2020 and has held it in 18 quarters since.
  • Qube Research & Technologies (QRT)'s Prothena Corp position peaked at $7.75M in Q2 2026.
  • 123 funds tracked by Wall St. Rank held Prothena Corp as of Q3 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q3 2026, filed 13 Nov 2026.