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ADAR1 Capital Management’s Prothena Corp PRTA Stock Holding History

ADAR1 Capital Management’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 		$15.4M Buy
1,581,443
+123,679
+8% +$1.13M 0.92% 22
2025
Q4 		$13.9M Sell
1,457,764
-11,334
-0.8% -$115K 1.04% 22
2025
Q3 		$14.3M Sell
1,469,098
-1,905,911
-56% -$14.6M 1.42% 13
2025
Q2 		$20.5M Buy
+3,375,009
New +$25.3M 3.33% 8
2024
Q3 		– Sell
-5,988
Closed -$124K – 330
2024
Q2 		$124K Hold
5,988
– – 0.02% 161
2024
Q1 		$148K Sell
5,988
-114
-2% -$3.39K 0.04% 133
2023
Q4 		$222K Buy
+6,102
New +$235K 0.1% 82

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VPM
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PAI
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Two Sigma Investments
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