CVA Family Office’s Prothena Corp PRTA Stock Holding History

CVA Family Office’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	$1.07K	Hold	109	–	–	﹤0.01%	1635
2026 Q1	$1.06K	Buy	+109	New	+$999	﹤0.01%	1641
2025 Q4	–	Sell	-225	Closed	-$2.2K	–	1350
2025 Q3	$2.2K	Buy	225 +153	+213%	+$1.18K	﹤0.01%	993
2025 Q2	$437	Hold	72	–	–	﹤0.01%	1255
2025 Q1	$891	Hold	72	–	–	﹤0.01%	1134
2024 Q4	$997	Sell	72 -22	-23%	-$347	﹤0.01%	1091
2024 Q3	$1.57K	Buy	+94	New	+$2.02K	﹤0.01%	1008
2023 Q3	–	Sell	-14	Closed	-$956	–	765
2023 Q2	$956	Buy	+14	New	+$903	﹤0.01%	953

Other funds holding PRTA

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 New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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 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

CVA Family Office's PRTA Position: Q2 2026 in Review

CVA Family Office held its Prothena Corp (PRTA) position steady in Q2 2026 at 109 shares worth $1.07K. The position accounts for ﹤0.01% of the portfolio, ranked #1635.

CVA Family Office first reported a position in PRTA in Q2 2023 and has held it in 8 quarters since. The position peaked at $2.2K in Q3 2025. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

CVA Family Office held 109 shares of Prothena Corp worth $1.07K as of Q2 2026.
CVA Family Office left its Prothena Corp share count unchanged in Q2 2026.
Prothena Corp made up ﹤0.01% of CVA Family Office's portfolio in Q2 2026, its #1635 holding.
CVA Family Office first reported a position in Prothena Corp in Q2 2023 and has held it in 8 quarters since.
CVA Family Office's Prothena Corp position peaked at $2.2K in Q3 2025.
187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on CVA Family Office's 13F filing for Q2 2026, filed 7 Aug 2026.