Gould Capital’s Prothena Corp PRTA Stock Holding History

Gould 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 Q1	$972	Hold	100	–	–	﹤0.01%	191
2025 Q4	$955	Hold	100	–	–	﹤0.01%	194
2025 Q3	$976	Hold	100	–	–	﹤0.01%	203
2025 Q2	$607	Hold	100	–	–	﹤0.01%	207
2025 Q1	$1.24K	Hold	100	–	–	﹤0.01%	186
2024 Q4	$1.39K	Hold	100	–	–	﹤0.01%	187
2024 Q3	$1.67K	Hold	100	–	–	﹤0.01%	183
2024 Q2	$2.06K	Hold	100	–	–	﹤0.01%	184
2024 Q1	$2.48K	Hold	100	–	–	﹤0.01%	175
2023 Q4	$3.63K	Hold	100	–	–	﹤0.01%	173
2023 Q3	$4.66K	Hold	100	–	–	﹤0.01%	164
2023 Q2	$6.83K	Hold	100	–	–	0.01%	157
2023 Q1	$4.85K	Hold	100	–	–	﹤0.01%	170
2022 Q4	$6.03K	Hold	100	–	–	﹤0.01%	165
2022 Q3	$6K	Hold	100	–	–	0.01%	159
2022 Q2	$3K	Hold	100	–	–	﹤0.01%	175
2022 Q1	$4K	Hold	100	–	–	﹤0.01%	166
2021 Q4	$5K	Buy	+100	New	+$5.54K	﹤0.01%	176

Other funds holding PRTA

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Rubric Capital Management (New York) New York $8.16B AUM 68.42% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

D.E. Shaw & Co New York $127B AUM 43.98% 1-Year Est. Return

ADAR1 Capital Management Austin, Texas $1.66B AUM 340.85% 1-Year Est. Return

Acadian Asset Management

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return