AG
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Algert Global’s Prothena Corp PRTA Stock Holding History

Algert Global’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
2025
Q4 		– Sell
-445,811
Closed -$4.35M – 1286
2025
Q3 		$4.35M Buy
445,811
+397,661
+826% +$3.06M 0.07% 447
2025
Q2 		$292K Buy
+48,150
New +$361K 0.01% 1032
2024
Q4 		– Sell
-72,961
Closed -$1.22M – 1295
2024
Q3 		$1.22M Sell
72,961
-4,230
-5% -$90.9K 0.03% 709
2024
Q2 		$1.59M Buy
77,191
+28,841
+60% +$624K 0.05% 538
2024
Q1 		$1.2M Sell
48,350
-908
-2% -$27K 0.05% 569
2023
Q4 		$1.79M Buy
49,258
+21,258
+76% +$818K 0.07% 448
2023
Q3 		$1.35M Buy
+28,000
New +$1.66M 0.06% 495
2023
Q1 		– Sell
-19,203
Closed -$1.16M – 1275
2022
Q4 		$1.16M Buy
19,203
+10,533
+121% +$617K 0.06% 516
2022
Q3 		$526K Buy
+8,670
New +$274K 0.03% 785
2022
Q2 		– Sell
-16,875
Closed -$617K – 1342
2022
Q1 		$617K Buy
+16,875
New +$608K 0.04% 738

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $8.16B AUM 68.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $127B AUM 43.98% 1-Year Est. Return
AC
Armistice Capital New York $3.03B AUM 36.06% 1-Year Est. Return
ACM
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
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return