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Sphera Funds Management’s Prothena Corp PRTA Stock Holding History

Sphera Funds 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
2018
Q1 		– Sell
-205,000
Closed -$7.68M – 134
2017
Q4 		$7.68M Buy
205,000
+145,000
+242% +$7.38M 0.9% 23
2017
Q3 		$3.89M Buy
60,000
+20,000
+50% +$1.23M 0.55% 50
2017
Q2 		$2.17M Buy
+40,000
New +$2.13M 0.37% 79
2015
Q4 		– Sell
-45,133
Closed -$2.05M – 130
2015
Q3 		$2.05M Sell
45,133
-70,000
-61% -$4.08M 0.26% 91
2015
Q2 		$6.06M Buy
115,133
+27,000
+31% +$1.07M 0.59% 33
2015
Q1 		$3.36M Buy
88,133
+25,501
+41% +$654K 0.35% 67
2014
Q4 		$1.3M Buy
62,632
+32,725
+109% +$683K 0.22% 101
2014
Q3 		$663K Buy
+29,907
New +$634K 0.08% 116
2014
Q2 		– Sell
-55,000
Closed -$2.11M – 119
2014
Q1 		$2.11M Buy
55,000
+5,000
+10% +$161K 0.48% 44
2013
Q4 		$1.33M Buy
+50,000
New +$1.25M 0.37% 64

Other funds holding PRTA

EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
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
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return

Sphera Funds Management's PRTA Position: Q1 2018 in Review

Sphera Funds Management sold out of Prothena Corp (PRTA) in Q1 2018, closing a stake of 205,000 shares — an estimated $7.68M sold.

Sphera Funds Management first reported a position in PRTA in Q4 2013 and held it in 10 quarters. The position peaked at $7.68M in Q4 2017. 142 funds tracked by Wall St. Rank hold PRTA as of Q1 2018.

  • Sphera Funds Management reported no remaining Prothena Corp position as of Q1 2018 after selling out during the quarter.
  • Sphera Funds Management sold 205,000 Prothena Corp shares in Q1 2018, an estimated $7.68M.
  • Sphera Funds Management first reported a position in Prothena Corp in Q4 2013 and held it in 10 quarters.
  • Sphera Funds Management's Prothena Corp position peaked at $7.68M in Q4 2017.
  • 142 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2018.

Based on Sphera Funds Management's 13F filing for Q1 2018, filed 10 May 2018.