International Biotechnology Trust’s Prothena Corp PRTA Stock Holding History

International Biotechnology Trust’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 Q3	$723K	Buy	+15,000	New	+$891K	0.24%	56
2022 Q3	–	Sell	-407	Closed	-$15K	–	77
2022 Q2	$15K	Sell	407 -14,593	-97%	-$427K	0.16%	71
2022 Q1	$23.8M	Hold	15,000	–	–	5.38%	2
2021 Q4	$741K	Buy	+15,000	New	+$832K	0.17%	64
2018 Q1	–	Sell	-15,000	Closed	-$562K	–	68
2017 Q4	$562K	Buy	+15,000	New	+$764K	0.2%	63
2017 Q3	–	Sell	-42,000	Closed	-$2.27M	–	62
2017 Q2	$2.27M	Hold	42,000	–	–	0.86%	37
2017 Q1	$2.34M	Hold	42,000	–	–	0.9%	30
2016 Q4	$2.07M	Buy	+42,000	New	+$2.32M	0.93%	24

Other funds holding PRTA

EcoR1 Capital San Francisco, California $2.06B AUM 215.32% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

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

PAI

Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return

FLAM

First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

International Biotechnology Trust's PRTA Position: Q3 2023 in Review

International Biotechnology Trust opened a new position in Prothena Corp (PRTA) in Q3 2023: 15,000 shares worth $723K. The stake represents 0.24% of the portfolio and ranks #56 among its holdings. This is a return to the name: International Biotechnology Trust previously reported a position in PRTA as recently as Q2 2022.

International Biotechnology Trust first reported a position in PRTA in Q4 2016 and has held it in 8 quarters since. The position peaked at $23.8M in Q1 2022. 186 funds tracked by Wall St. Rank hold PRTA as of Q3 2023.

International Biotechnology Trust held 15,000 shares of Prothena Corp worth $723K as of Q3 2023.
Prothena Corp was a new International Biotechnology Trust position in Q3 2023.
Prothena Corp made up 0.24% of International Biotechnology Trust's portfolio in Q3 2023, its #56 holding.
International Biotechnology Trust first reported a position in Prothena Corp in Q4 2016 and has held it in 8 quarters since.
International Biotechnology Trust's Prothena Corp position peaked at $23.8M in Q1 2022.
186 funds tracked by Wall St. Rank held Prothena Corp as of Q3 2023.

Based on International Biotechnology Trust's 13F filing for Q3 2023, filed 14 Nov 2023.