Adage Capital Partners’s Prothena Corp PRTA Stock Holding History

Adage Capital 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
2021 Q4	–	Sell	-100,000	Closed	-$7.12M	–	1090
2021 Q3	$7.12M	Sell	100,000 -100,000	-50%	-$6.21M	0.01%	783
2021 Q2	$10.3M	Buy	+200,000	New	+$6.24M	0.02%	680
2021 Q1	–	Sell	-125,000	Closed	-$1.5M	–	1010
2020 Q4	$1.5M	Sell	125,000 -75,000	-38%	-$887K	﹤0.01%	758
2020 Q3	$2M	Buy	200,000 +175,000	+700%	+$2.11M	0.01%	701
2020 Q2	$262K	Buy	+25,000	New	+$278K	﹤0.01%	721
2014 Q4	–	Sell	-300,000	Closed	-$6.65M	–	756
2014 Q3	$6.65M	Sell	300,000 -249,186	-45%	-$5.28M	0.02%	589
2014 Q2	$12.4M	Sell	549,186 -266,757	-33%	-$6.67M	0.03%	491
2014 Q1	$31.3M	Sell	815,943 -150,000	-16%	-$4.84M	0.09%	287
2013 Q4	$25.6M	Sell	965,943 -51,072	-5%	-$1.28M	0.07%	342
2013 Q3	$20.6M	Sell	1,017,015 -282,985	-22%	-$5.01M	0.06%	370
2013 Q2	$16.8M	Buy	+1,300,000	New	+$12.1M	0.05%	399

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

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

FLAM

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

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

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

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

Adage Capital Partners's PRTA Position: Q4 2021 in Review

Adage Capital Partners sold out of Prothena Corp (PRTA) in Q4 2021, closing a stake of 100,000 shares — an estimated $7.12M sold.

Adage Capital Partners first reported a position in PRTA in Q2 2013 and held it in 11 quarters. The position peaked at $31.3M in Q1 2014. 196 funds tracked by Wall St. Rank hold PRTA as of Q4 2021.

Adage Capital Partners reported no remaining Prothena Corp position as of Q4 2021 after selling out during the quarter.
Adage Capital Partners sold 100,000 Prothena Corp shares in Q4 2021, an estimated $7.12M.
Adage Capital Partners first reported a position in Prothena Corp in Q2 2013 and held it in 11 quarters.
Adage Capital Partners's Prothena Corp position peaked at $31.3M in Q1 2014.
196 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2021.

Based on Adage Capital Partners's 13F filing for Q4 2021, filed 14 Feb 2022.