SG3 Management’s Prothena Corp PRTA Stock Holding History

SG3 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	-20,000	Closed	-$240K	–	1401
2020 Q4	$240K	Sell	20,000 -5,000	-20%	-$59.1K	﹤0.01%	847
2020 Q3	$250K	Buy	+25,000	New	+$301K	0.01%	694
2017 Q4	–	Sell	-14,000	Closed	-$907K	–	178
2017 Q3	$907K	Hold	14,000	–	–	0.21%	77
2017 Q2	$758K	Hold	14,000	–	–	0.19%	116
2017 Q1	$781K	Buy	+14,000	New	+$736K	0.14%	105

Other funds holding PRTA

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

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

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

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

RSCM

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

SG3 Management's PRTA Position: Q2 2021 in Review

SG3 Management sold out of Prothena Corp (PRTA) in Q2 2021, closing a stake of 22,500 shares — an estimated $565K sold.

SG3 Management first reported a position in PRTA in Q1 2017 and held it in 5 quarters. The position peaked at $565K in Q1 2021. 156 funds tracked by Wall St. Rank hold PRTA as of Q2 2021.

SG3 Management reported no remaining Prothena Corp position as of Q2 2021 after selling out during the quarter.
SG3 Management sold 22,500 Prothena Corp shares in Q2 2021, an estimated $565K.
SG3 Management first reported a position in Prothena Corp in Q1 2017 and held it in 5 quarters.
SG3 Management's Prothena Corp position peaked at $565K in Q1 2021.
156 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2021.

Based on SG3 Management's 13F filing for Q2 2021, filed 16 Aug 2021.