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INTECH Investment Management’s Prothena Corp PRTA Stock Holding History

INTECH Investment Management’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 		– Sell
-11,874
Closed -$115K – 2243
2026
Q1 		$115K Sell
11,874
-8,727
-42% -$80K ﹤0.01% 1870
2025
Q4 		$197K Buy
20,601
+1,213
+6% +$12.3K ﹤0.01% 1997
2025
Q3 		$189K Buy
19,388
+1,014
+6% +$7.79K ﹤0.01% 2088
2025
Q2 		$112K Sell
18,374
-15,001
-45% -$113K ﹤0.01% 2268
2025
Q1 		$413K Buy
33,375
+10,992
+49% +$155K ﹤0.01% 1716
2024
Q4 		$310K Buy
22,383
+9,828
+78% +$155K ﹤0.01% 1817
2024
Q3 		$210K Buy
+12,555
New +$270K ﹤0.01% 1696

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

INTECH Investment Management's PRTA Position: Q2 2026 in Review

INTECH Investment Management sold out of Prothena Corp (PRTA) in Q2 2026, closing a stake of 11,874 shares — an estimated $115K sold.

INTECH Investment Management first reported a position in PRTA in Q3 2024 and held it in 7 quarters. The position peaked at $413K in Q1 2025. 188 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • INTECH Investment Management reported no remaining Prothena Corp position as of Q2 2026 after selling out during the quarter.
  • INTECH Investment Management sold 11,874 Prothena Corp shares in Q2 2026, an estimated $115K.
  • INTECH Investment Management first reported a position in Prothena Corp in Q3 2024 and held it in 7 quarters.
  • INTECH Investment Management's Prothena Corp position peaked at $413K in Q1 2025.
  • 188 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on INTECH Investment Management's 13F filing for Q2 2026, filed 10 Aug 2026.