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DCF Advisers’s Prothena Corp PRTA Stock Holding History

DCF Advisers’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 		$717K Hold
73,247
– – 0.13% 71
2026
Q1 		$712K Sell
73,247
-122,500
-63% -$1.12M 0.19% 67
2025
Q4 		$1.87M Sell
195,747
-5,000
-2% -$50.9K 0.5% 50
2025
Q3 		$1.96M Buy
200,747
+44,247
+28% +$340K 0.63% 47
2025
Q2 		$950K Sell
156,500
-38,500
-20% -$289K 0.44% 54
2025
Q1 		$2.41M Buy
195,000
+91,500
+88% +$1.29M 1.16% 30
2024
Q4 		$1.43M Sell
103,500
-4,000
-4% -$63.1K 0.69% 44
2024
Q3 		$1.8M Hold
107,500
– – 0.72% 34
2024
Q2 		$2.22M Buy
107,500
+500
+0.5% +$10.8K 1.14% 27
2024
Q1 		$2.65M Buy
107,000
+23,000
+27% +$684K 1.31% 22
2023
Q4 		$3.05M Buy
84,000
+1,050
+1% +$40.4K 1.66% 17
2023
Q3 		$4M Sell
82,950
-1,800
-2% -$107K 2.18% 13
2023
Q2 		$5.79M Buy
84,750
+500
+0.6% +$32.3K 3.06% 8
2023
Q1 		$4.08M Buy
84,250
+10,150
+14% +$536K 2.5% 10
2022
Q4 		$4.46M Buy
74,100
+6,100
+9% +$357K 3.02% 10
2022
Q3 		$4.12M Buy
68,000
+144
+0.2% +$4.55K 2.66% 10
2022
Q2 		$1.84M Sell
67,856
-8,144
-11% -$238K 1.1% 32
2022
Q1 		$2.78M Buy
76,000
+16,000
+27% +$577K 1.22% 23
2021
Q4 		$2.96M Hold
60,000
– – 1.2% 24
2021
Q3 		$4.27M Sell
60,000
-1,750
-3% -$109K 1.89% 17
2021
Q2 		$3.17M Buy
61,750
+15,894
+35% +$496K 1.13% 24
2021
Q1 		$1.15M Buy
+45,856
New +$863K 0.5% 45

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

DCF Advisers's PRTA Position: Q2 2026 in Review

DCF Advisers held its Prothena Corp (PRTA) position steady in Q2 2026 at 73,247 shares worth $717K. The position accounts for 0.13% of the portfolio, ranked #71.

DCF Advisers first reported a position in PRTA in Q1 2021 and has held it in 22 quarters since. The position peaked at $5.79M in Q2 2023. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • DCF Advisers held 73,247 shares of Prothena Corp worth $717K as of Q2 2026.
  • DCF Advisers left its Prothena Corp share count unchanged in Q2 2026.
  • Prothena Corp made up 0.13% of DCF Advisers's portfolio in Q2 2026, its #71 holding.
  • DCF Advisers first reported a position in Prothena Corp in Q1 2021 and has held it in 22 quarters since.
  • DCF Advisers's Prothena Corp position peaked at $5.79M in Q2 2023.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on DCF Advisers's 13F filing for Q2 2026, filed 10 Aug 2026.