Lonestar Capital Management’s Prothena Corp PRTA Stock Holding History

Lonestar 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
2021 Q1	–	Sell	-46,965	Closed	-$564K	–	24
2020 Q4	$564K	Sell	46,965 -169,435	-78%	-$2M	0.1%	22
2020 Q3	$2.16M	Sell	216,400 -72,620	-25%	-$874K	0.38%	21
2020 Q2	$3.02M	Sell	289,020 -50,986	-15%	-$567K	0.99%	15
2020 Q1	$3.64M	Buy	340,006 +40,006	+13%	+$485K	3.67%	10
2019 Q4	$4.75M	Hold	300,000	–	–	2.86%	13
2019 Q3	$2.35M	Buy	+300,000	New	+$2.66M	0.78%	21

Other funds holding PRTA

EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 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

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

FLAM

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

Redmile Group San Francisco, California $1.51B AUM 164.17% 1-Year Est. Return

PAI

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

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

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

RSCM

Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return

Lonestar Capital Management's PRTA Position: Q1 2021 in Review

Lonestar Capital Management sold out of Prothena Corp (PRTA) in Q1 2021, closing a stake of 46,965 shares — an estimated $564K sold.

Lonestar Capital Management first reported a position in PRTA in Q3 2019 and held it in 6 quarters. The position peaked at $4.75M in Q4 2019. 146 funds tracked by Wall St. Rank hold PRTA as of Q1 2021.

Lonestar Capital Management reported no remaining Prothena Corp position as of Q1 2021 after selling out during the quarter.
Lonestar Capital Management sold 46,965 Prothena Corp shares in Q1 2021, an estimated $564K.
Lonestar Capital Management first reported a position in Prothena Corp in Q3 2019 and held it in 6 quarters.
Lonestar Capital Management's Prothena Corp position peaked at $4.75M in Q4 2019.
146 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2021.

Based on Lonestar Capital Management's 13F filing for Q1 2021, filed 14 May 2021.