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Campbell & Co Investment Adviser’s Prothena Corp PRTA Stock Holding History

Campbell & Co Investment Adviser’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 		$1.39M Buy
142,587
+48,432
+51% +$444K 0.08% 388
2025
Q4 		$899K Buy
+94,155
New +$959K 0.04% 604
2023
Q1 		– Sell
-8,527
Closed -$514K – 992
2022
Q4 		$514K Buy
8,527
+104
+1% +$6.09K 0.12% 301
2022
Q3 		$511K Buy
+8,423
New +$266K 0.12% 309
2021
Q4 		– Sell
-8,400
Closed -$598K – 773
2021
Q3 		$598K Buy
+8,400
New +$522K 0.19% 166
2020
Q3 		– Sell
-37,046
Closed -$388K – 460
2020
Q2 		$388K Buy
+37,046
New +$412K 0.49% 54
2019
Q4 		– Sell
-47,901
Closed -$376K – 811
2019
Q3 		$376K Buy
47,901
+27,601
+136% +$245K 0.14% 286
2019
Q2 		$215K Buy
+20,300
New +$208K 0.1% 439

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $8.16B AUM 68.42% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $127B AUM 43.98% 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
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return