T. Rowe Price Investment Management
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T. Rowe Price Investment Management’s Prothena Corp PRTA Stock Holding History

T. Rowe Price Investment 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
2023
Q4 		– Sell
-853,479
Closed -$41.2M – 625
2023
Q3 		$41.2M Sell
853,479
-22,691
-3% -$1.35M 0.03% 390
2023
Q2 		$59.8M Sell
876,170
-38,513
-4% -$2.48M 0.04% 345
2023
Q1 		$44.3M Sell
914,683
-13,276
-1% -$701K 0.03% 382
2022
Q4 		$55.9M Buy
927,959
+79,997
+9% +$4.68M 0.04% 345
2022
Q3 		$51.4M Buy
+847,962
New +$26.8M 0.04% 345

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
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

T. Rowe Price Investment Management's PRTA Position: Q4 2023 in Review

T. Rowe Price Investment Management sold out of Prothena Corp (PRTA) in Q4 2023, closing a stake of 853,479 shares — an estimated $41.2M sold.

T. Rowe Price Investment Management first reported a position in PRTA in Q3 2022 and held it in 5 quarters. The position peaked at $59.8M in Q2 2023. 187 funds tracked by Wall St. Rank hold PRTA as of Q4 2023.

  • T. Rowe Price Investment Management reported no remaining Prothena Corp position as of Q4 2023 after selling out during the quarter.
  • T. Rowe Price Investment Management sold 853,479 Prothena Corp shares in Q4 2023, an estimated $41.2M.
  • T. Rowe Price Investment Management first reported a position in Prothena Corp in Q3 2022 and held it in 5 quarters.
  • T. Rowe Price Investment Management's Prothena Corp position peaked at $59.8M in Q2 2023.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2023.

Based on T. Rowe Price Investment Management's 13F filing for Q4 2023, filed 14 Feb 2024.