Hudson Bay Capital Management’s Prothena Corp PRTA Stock Holding History

Hudson Bay 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
2024 Q1	–	Sell	-20,000	Closed	-$727K	–	854
2023 Q4	$727K	Sell	20,000 -12,500	-38%	-$481K	﹤0.01%	541
2023 Q3	$1.57M	Buy	+32,500	New	+$1.93M	0.01%	514
2021 Q2	–	Sell	-70,000	Closed	-$1.76M	–	1004
2021 Q1	$1.76M	Buy	+70,000	New	+$1.32M	0.02%	588
2020 Q4	–	Sell	-225,000	Closed	-$2.25M	–	680
2020 Q3	$2.25M	Buy	225,000 +18,445	+9%	+$222K	0.03%	340
2020 Q2	$2.16M	Buy	206,555 +26,555	+15%	+$295K	0.04%	304
2020 Q1	$1.93M	Buy	180,000 +165,000	+1,100%	+$2M	0.05%	268
2019 Q4	$237K	Buy	+15,000	New	+$161K	0.01%	366
2018 Q1	–	Sell	-50,000	Closed	-$1.88M	–	840
2017 Q4	$1.88M	Buy	50,000 +30,000	+150%	+$1.53M	0.04%	328
2017 Q3	$1.29M	Sell	20,000 -30,000	-60%	-$1.84M	0.03%	277
2017 Q2	$2.71M	Buy	+50,000	New	+$2.66M	0.05%	296

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

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 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

PAI

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

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

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

Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return

Hudson Bay Capital Management's PRTA Position: Q1 2024 in Review

Hudson Bay Capital Management sold out of Prothena Corp (PRTA) in Q1 2024, closing a stake of 20,000 shares — an estimated $727K sold.

Hudson Bay Capital Management first reported a position in PRTA in Q2 2017 and held it in 10 quarters. The position peaked at $2.71M in Q2 2017. 169 funds tracked by Wall St. Rank hold PRTA as of Q1 2024.

Hudson Bay Capital Management reported no remaining Prothena Corp position as of Q1 2024 after selling out during the quarter.
Hudson Bay Capital Management sold 20,000 Prothena Corp shares in Q1 2024, an estimated $727K.
Hudson Bay Capital Management first reported a position in Prothena Corp in Q2 2017 and held it in 10 quarters.
Hudson Bay Capital Management's Prothena Corp position peaked at $2.71M in Q2 2017.
169 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2024.

Based on Hudson Bay Capital Management's 13F filing for Q1 2024, filed 15 May 2024.