AIS
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AlphaOne Investment Services’s Prothena Corp PRTA Stock Holding History

AlphaOne Investment Services’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
2015
Q1 		– Sell
-10,700
Closed -$222K – 102
2014
Q4 		$222K Buy
+10,700
New +$223K 0.08% 96

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
WIM
Woodford Investment Management London, United Kingdom $310M AUM 17.41% 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
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BFA
BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return

AlphaOne Investment Services's PRTA Position: Q1 2015 in Review

AlphaOne Investment Services sold out of Prothena Corp (PRTA) in Q1 2015, closing a stake of 10,700 shares — an estimated $222K sold.

AlphaOne Investment Services first reported a position in PRTA in Q4 2014 and held it in 1 quarter. The position peaked at $222K in Q4 2014. 124 funds tracked by Wall St. Rank hold PRTA as of Q1 2015.

  • AlphaOne Investment Services reported no remaining Prothena Corp position as of Q1 2015 after selling out during the quarter.
  • AlphaOne Investment Services sold 10,700 Prothena Corp shares in Q1 2015, an estimated $222K.
  • AlphaOne Investment Services first reported a position in Prothena Corp in Q4 2014 and held it in 1 quarter.
  • AlphaOne Investment Services's Prothena Corp position peaked at $222K in Q4 2014.
  • 124 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2015.

Based on AlphaOne Investment Services's 13F filing for Q1 2015, filed 14 May 2015.