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Redmile Group’s Prothena Corp PRTA Stock Holding History

Redmile Group’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
2022
Q4 		– Sell
-525,575
Closed -$31.9M – 71
2022
Q3 		$31.9M Sell
525,575
-210,600
-29% -$6.66M 1.24% 28
2022
Q2 		$20M Hold
736,175
– – 0.76% 36
2022
Q1 		$26.9M Sell
736,175
-29,500
-4% -$1.06M 0.84% 35
2021
Q4 		$37.8M Sell
765,675
-135,816
-15% -$7.53M 0.86% 34
2021
Q3 		$64.2M Sell
901,491
-314,166
-26% -$19.5M 1.12% 28
2021
Q2 		$62.5M Sell
1,215,657
-641,415
-35% -$20M 0.92% 34
2021
Q1 		$46.6M Buy
+1,857,072
New +$34.9M 0.66% 46
2017
Q3 		– Sell
-509,698
Closed -$27.6M – 72
2017
Q2 		$27.6M Sell
509,698
-339,785
-40% -$18.1M 1.68% 22
2017
Q1 		$47.4M Buy
849,483
+195,758
+30% +$10.3M 3.08% 9
2016
Q4 		$32.2M Sell
653,725
-47,934
-7% -$2.64M 2.77% 13
2016
Q3 		$42.1M Buy
701,659
+214,253
+44% +$11.5M 3.35% 12
2016
Q2 		$17M Buy
+487,406
New +$21.2M 1.63% 25
2014
Q4 		– Sell
-125,973
Closed -$2.79M – 60
2014
Q3 		$2.79M Sell
125,973
-244,547
-66% -$5.18M 0.32% 49
2014
Q2 		$8.36M Sell
370,520
-189,091
-34% -$4.73M 1.01% 37
2014
Q1 		$21.4M Buy
559,611
+550,511
+6,050% +$17.7M 2.56% 14
2013
Q4 		$241K Buy
+9,100
New +$228K 0.03% 53

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
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
APM
Avidity Partners Management Dallas, Texas $936M AUM 195% 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
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
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Redmile Group's PRTA Position: Q4 2022 in Review

Redmile Group sold out of Prothena Corp (PRTA) in Q4 2022, closing a stake of 525,575 shares — an estimated $31.9M sold.

Redmile Group first reported a position in PRTA in Q4 2013 and held it in 16 quarters. The position peaked at $64.2M in Q3 2021. 201 funds tracked by Wall St. Rank hold PRTA as of Q4 2022.

  • Redmile Group reported no remaining Prothena Corp position as of Q4 2022 after selling out during the quarter.
  • Redmile Group sold 525,575 Prothena Corp shares in Q4 2022, an estimated $31.9M.
  • Redmile Group first reported a position in Prothena Corp in Q4 2013 and held it in 16 quarters.
  • Redmile Group's Prothena Corp position peaked at $64.2M in Q3 2021.
  • 201 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2022.

Based on Redmile Group's 13F filing for Q4 2022, filed 14 Feb 2023.