ARTA
PRTA icon

A.R.T. Advisors’s Prothena Corp PRTA Stock Holding History

A.R.T. Advisors’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
2020
Q1 		– Sell
-13,208
Closed -$209K – 753
2019
Q4 		$209K Sell
13,208
-6,500
-33% -$69.7K 0.01% 1143
2019
Q3 		$155K Sell
19,708
-7,700
-28% -$68.4K 0.01% 1216
2019
Q2 		$290K Sell
27,408
-5,800
-17% -$59.6K 0.02% 967
2019
Q1 		$403K Sell
33,208
-164
-0.5% -$2.05K 0.02% 824
2018
Q4 		$344K Sell
33,372
-37,691
-53% -$448K 0.02% 877
2018
Q3 		$929K Sell
71,063
-28,441
-29% -$411K 0.04% 615
2018
Q2 		$1.45M Buy
99,504
+58,100
+140% +$1.15M 0.06% 473
2018
Q1 		$1.52M Buy
+41,404
New +$1.51M 0.06% 503
2017
Q4 		– Sell
-29,794
Closed -$1.93M – 1605
2017
Q3 		$1.93M Buy
29,794
+13,300
+81% +$815K 0.1% 291
2017
Q2 		$892K Buy
16,494
+4,200
+34% +$224K 0.05% 569
2017
Q1 		$685K Buy
+12,294
New +$646K 0.03% 692
2015
Q1 		– Sell
-23,860
Closed -$495K – 1634
2014
Q4 		$495K Buy
23,860
+7,075
+42% +$148K 0.02% 934
2014
Q3 		$371K Sell
16,785
-12,059
-42% -$256K 0.02% 865
2014
Q2 		$650K Buy
28,844
+1,285
+5% +$32.1K 0.03% 662
2014
Q1 		$1.05M Buy
27,559
+18,847
+216% +$608K 0.06% 478
2013
Q4 		$231K Buy
+8,712
New +$219K 0.01% 1065

Other funds holding PRTA

EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
GPP
Great Point Partners Greenwich, Connecticut $435M AUM 318.81% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return

A.R.T. Advisors's PRTA Position: Q1 2020 in Review

A.R.T. Advisors sold out of Prothena Corp (PRTA) in Q1 2020, closing a stake of 13,208 shares — an estimated $209K sold.

A.R.T. Advisors first reported a position in PRTA in Q4 2013 and held it in 16 quarters. The position peaked at $1.93M in Q3 2017. 129 funds tracked by Wall St. Rank hold PRTA as of Q1 2020.

  • A.R.T. Advisors reported no remaining Prothena Corp position as of Q1 2020 after selling out during the quarter.
  • A.R.T. Advisors sold 13,208 Prothena Corp shares in Q1 2020, an estimated $209K.
  • A.R.T. Advisors first reported a position in Prothena Corp in Q4 2013 and held it in 16 quarters.
  • A.R.T. Advisors's Prothena Corp position peaked at $1.93M in Q3 2017.
  • 129 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2020.

Based on A.R.T. Advisors's 13F filing for Q1 2020, filed 15 May 2020.