Loomis, Sayles & Company
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Loomis, Sayles & Company’s Prothena Corp PRTA Stock Holding History

Loomis, Sayles & Company’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
2017
Q4 		– Sell
-334,381
Closed -$21.7M – 920
2017
Q3 		$21.7M Sell
334,381
-533
-0.2% -$32.6K 0.05% 257
2017
Q2 		$18.1M Buy
334,914
+7,139
+2% +$380K 0.04% 284
2017
Q1 		$18.3M Buy
327,775
+131,805
+67% +$6.92M 0.05% 276
2016
Q4 		$9.64M Buy
+195,970
New +$10.8M 0.02% 440

Other funds holding PRTA

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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Loomis, Sayles & Company's PRTA Position: Q4 2017 in Review

Loomis, Sayles & Company sold out of Prothena Corp (PRTA) in Q4 2017, closing a stake of 334,381 shares — an estimated $21.7M sold.

Loomis, Sayles & Company first reported a position in PRTA in Q4 2016 and held it in 4 quarters. The position peaked at $21.7M in Q3 2017. 155 funds tracked by Wall St. Rank hold PRTA as of Q4 2017.

  • Loomis, Sayles & Company reported no remaining Prothena Corp position as of Q4 2017 after selling out during the quarter.
  • Loomis, Sayles & Company sold 334,381 Prothena Corp shares in Q4 2017, an estimated $21.7M.
  • Loomis, Sayles & Company first reported a position in Prothena Corp in Q4 2016 and held it in 4 quarters.
  • Loomis, Sayles & Company's Prothena Corp position peaked at $21.7M in Q3 2017.
  • 155 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2017.

Based on Loomis, Sayles & Company's 13F filing for Q4 2017, filed 14 Feb 2018.