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Inscription Capital’s Prothena Corp PRTA Stock Holding History

Inscription Capital’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 		$113K Buy
11,540
+1,060
+10% +$10.5K 0.01% 767
2026
Q1 		$102K Sell
10,480
-172
-2% -$1.58K 0.01% 681
2025
Q4 		$102K Buy
10,652
+172
+2% +$1.75K 0.01% 656
2025
Q3 		$102K Buy
+10,480
New +$80.6K 0.01% 609

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

Inscription Capital's PRTA Position: Q2 2026 in Review

Inscription Capital increased its Prothena Corp (PRTA) stake by 10% in Q2 2026, buying an estimated $10.5K and bringing the position to 11,540 shares worth $113K. The position accounts for 0.01% of the portfolio, ranked #767.

Inscription Capital first reported a position in PRTA in Q3 2025 and has held it in 4 quarters since. 188 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • Inscription Capital held 11,540 shares of Prothena Corp worth $113K as of Q2 2026.
  • Inscription Capital bought 1,060 Prothena Corp shares in Q2 2026, an estimated $10.5K.
  • Prothena Corp made up 0.01% of Inscription Capital's portfolio in Q2 2026, its #767 holding.
  • Inscription Capital first reported a position in Prothena Corp in Q3 2025 and has held it in 4 quarters since.
  • 188 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Inscription Capital's 13F filing for Q2 2026, filed 13 Aug 2026.