Perceptive Advisors’s Prothena Corp PRTA Stock Holding History

Perceptive Advisors’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
2023 Q4	–	Sell	-165,615	Closed	-$7.99M	–	111
2023 Q3	$7.99M	Sell	165,615 -19,000	-10%	-$1.13M	0.27%	64
2023 Q2	$12.6M	Sell	184,615 -53,031	-22%	-$3.42M	0.36%	63
2023 Q1	$11.5M	Hold	237,646	–	–	0.34%	62
2022 Q4	$14.3M	Buy	237,646 +7,646	+3%	+$448K	0.4%	50
2022 Q3	$13.9M	Buy	+230,000	New	+$7.27M	0.4%	57
2022 Q2	–	Sell	-65,144	Closed	-$2.38M	–	121
2022 Q1	$2.38M	Sell	65,144 -34,856	-35%	-$1.26M	0.05%	117
2021 Q4	$4.94M	Hold	100,000	–	–	0.08%	120
2021 Q3	$7.12M	Hold	100,000	–	–	0.1%	110
2021 Q2	$5.14M	Buy	+100,000	New	+$3.12M	0.07%	125
2015 Q1	–	Sell	-247,336	Closed	-$5.13M	–	168
2014 Q4	$5.13M	Sell	247,336 -52,664	-18%	-$1.1M	0.43%	53
2014 Q3	$6.65M	Sell	300,000 -183,162	-38%	-$3.88M	0.67%	38
2014 Q2	$10.9M	Buy	483,162 +133,162	+38%	+$3.33M	1.07%	29
2014 Q1	$13.4M	Buy	+350,000	New	+$11.3M	1.41%	21

Other funds holding PRTA

EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return

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

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

PAI

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

FLAM

First Light Asset Management Edina, Minnesota $1.12B AUM 114.45% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Perceptive Advisors's PRTA Position: Q4 2023 in Review

Perceptive Advisors sold out of Prothena Corp (PRTA) in Q4 2023, closing a stake of 165,615 shares — an estimated $7.99M sold.

Perceptive Advisors first reported a position in PRTA in Q1 2014 and held it in 13 quarters. The position peaked at $14.3M in Q4 2022. 187 funds tracked by Wall St. Rank hold PRTA as of Q4 2023.

Perceptive Advisors reported no remaining Prothena Corp position as of Q4 2023 after selling out during the quarter.
Perceptive Advisors sold 165,615 Prothena Corp shares in Q4 2023, an estimated $7.99M.
Perceptive Advisors first reported a position in Prothena Corp in Q1 2014 and held it in 13 quarters.
Perceptive Advisors's Prothena Corp position peaked at $14.3M in Q4 2022.
187 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2023.

Based on Perceptive Advisors's 13F filing for Q4 2023, filed 14 Feb 2024.