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Hennion & Walsh Asset Management’s Prothena Corp PRTA Stock Holding History

Hennion & Walsh Asset 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 		$889K Buy
90,795
+2,251
+3% +$22.2K 0.03% 591
2026
Q1 		$861K Sell
88,544
-2,740
-3% -$25.1K 0.03% 552
2025
Q4 		$872K Buy
91,284
+6,686
+8% +$68.1K 0.03% 560
2025
Q3 		$826K Sell
84,598
-1,556
-2% -$12K 0.03% 560
2025
Q2 		$523K Buy
86,154
+8,517
+11% +$63.9K 0.02% 661
2025
Q1 		$961K Buy
77,637
+25,353
+48% +$358K 0.04% 483
2024
Q4 		$724K Buy
+52,284
New +$825K 0.03% 542

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

Hennion & Walsh Asset Management's PRTA Position: Q2 2026 in Review

Hennion & Walsh Asset Management increased its Prothena Corp (PRTA) stake by 2.5% in Q2 2026, buying an estimated $22.2K and bringing the position to 90,795 shares worth $889K. The position accounts for 0.03% of the portfolio, ranked #591.

Hennion & Walsh Asset Management first reported a position in PRTA in Q4 2024 and has held it in 7 quarters since. The position peaked at $961K in Q1 2025. 188 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • Hennion & Walsh Asset Management held 90,795 shares of Prothena Corp worth $889K as of Q2 2026.
  • Hennion & Walsh Asset Management bought 2,251 Prothena Corp shares in Q2 2026, an estimated $22.2K.
  • Prothena Corp made up 0.03% of Hennion & Walsh Asset Management's portfolio in Q2 2026, its #591 holding.
  • Hennion & Walsh Asset Management first reported a position in Prothena Corp in Q4 2024 and has held it in 7 quarters since.
  • Hennion & Walsh Asset Management's Prothena Corp position peaked at $961K in Q1 2025.
  • 188 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Hennion & Walsh Asset Management's 13F filing for Q2 2026, filed 8 Jul 2026.