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Schonfeld Strategic Advisors’s Prothena Corp PRTA Stock Holding History

Schonfeld Strategic Advisors’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 		$493K Buy
50,350
+37,951
+306% +$375K ﹤0.01% 1823
2026
Q1 		$121K Buy
+12,399
New +$114K ﹤0.01% 1853
2025
Q3 		– Sell
-307,341
Closed -$1.87M – 2497
2025
Q2 		$1.87M Buy
+307,341
New +$2.31M 0.01% 1025
2024
Q4 		– Sell
-62,272
Closed -$1.04M – 2308
2024
Q3 		$1.04M Buy
+62,272
New +$1.34M 0.01% 1146
2023
Q1 		– Sell
-28,128
Closed -$1.69M – 2530
2022
Q4 		$1.69M Sell
28,128
-16,662
-37% -$976K 0.01% 893
2022
Q3 		$2.72M Buy
+44,790
New +$1.42M 0.02% 744
2022
Q1 		– Sell
-10,387
Closed -$513K – 2855
2021
Q4 		$513K Buy
10,387
+6,622
+176% +$367K ﹤0.01% 1242
2021
Q3 		$269K Buy
+3,765
New +$234K ﹤0.01% 1588

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 $3.38T AUM 44.17% 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

Schonfeld Strategic Advisors's PRTA Position: Q2 2026 in Review

Schonfeld Strategic Advisors increased its Prothena Corp (PRTA) stake by 306% in Q2 2026, buying an estimated $375K and bringing the position to 50,350 shares worth $493K. The position accounts for ﹤0.01% of the portfolio, ranked #1823.

Schonfeld Strategic Advisors first reported a position in PRTA in Q3 2021 and has held it in 8 quarters since. The position peaked at $2.72M in Q3 2022. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • Schonfeld Strategic Advisors held 50,350 shares of Prothena Corp worth $493K as of Q2 2026.
  • Schonfeld Strategic Advisors bought 37,951 Prothena Corp shares in Q2 2026, an estimated $375K.
  • Prothena Corp made up ﹤0.01% of Schonfeld Strategic Advisors's portfolio in Q2 2026, its #1823 holding.
  • Schonfeld Strategic Advisors first reported a position in Prothena Corp in Q3 2021 and has held it in 8 quarters since.
  • Schonfeld Strategic Advisors's Prothena Corp position peaked at $2.72M in Q3 2022.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Schonfeld Strategic Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.