Old Well Partners’s Prothena Corp PRTA Stock Holding History

Old Well Partners’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
2022 Q4	–	Sell	-3,924	Closed	-$238K	–	41
2022 Q3	$238K	Buy	+3,924	New	+$124K	0.2%	35
2021 Q4	–	Sell	-4,824	Closed	-$344K	–	47
2021 Q3	$344K	Sell	4,824 -3,100	-39%	-$193K	0.18%	23
2021 Q2	$407K	Sell	7,924 -2,267	-22%	-$70.7K	0.18%	26
2021 Q1	$256K	Buy	+10,191	New	+$192K	0.13%	30

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

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

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

APM

Avidity Partners Management Dallas, Texas $936M AUM 195% 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

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

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

Old Well Partners's PRTA Position: Q4 2022 in Review

Old Well Partners sold out of Prothena Corp (PRTA) in Q4 2022, closing a stake of 3,924 shares — an estimated $238K sold.

Old Well Partners first reported a position in PRTA in Q1 2021 and held it in 4 quarters. The position peaked at $407K in Q2 2021. 201 funds tracked by Wall St. Rank hold PRTA as of Q4 2022.

Old Well Partners reported no remaining Prothena Corp position as of Q4 2022 after selling out during the quarter.
Old Well Partners sold 3,924 Prothena Corp shares in Q4 2022, an estimated $238K.
Old Well Partners first reported a position in Prothena Corp in Q1 2021 and held it in 4 quarters.
Old Well Partners's Prothena Corp position peaked at $407K in Q2 2021.
201 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2022.

Based on Old Well Partners's 13F filing for Q4 2022, filed 14 Feb 2023.