Bessemer Group
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Bessemer Group’s Prothena Corp PRTA Stock Holding History

Bessemer 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
2024
Q4 		– Sell
-55
Closed -$1K – 2642
2024
Q3 		$1K Buy
+55
New +$1.18K ﹤0.01% 2508
2022
Q4 		– Sell
-63
Closed -$4K – 2095
2022
Q3 		$4K Hold
63
– – ﹤0.01% 1799
2022
Q2 		$2K Hold
63
– – ﹤0.01% 1759
2022
Q1 		$2K Hold
63
– – ﹤0.01% 1732
2021
Q4 		$3K Hold
63
– – ﹤0.01% 1730
2021
Q3 		$4K Hold
63
– – ﹤0.01% 1545
2021
Q2 		$3K Hold
63
– – ﹤0.01% 1488
2021
Q1 		$2K Hold
63
– – ﹤0.01% 1461
2020
Q4 		$1K Hold
63
– – ﹤0.01% 1444
2020
Q3 		$1K Sell
63
-60,700
-100% -$730K ﹤0.01% 1313
2020
Q2 		$636K Buy
60,763
+60,700
+96,349% +$674K ﹤0.01% 908
2020
Q1 		$1K Hold
63
– – ﹤0.01% 1586
2019
Q4 		$1K Hold
63
– – ﹤0.01% 1599
2019
Q3 		$0 Hold
63
– – ﹤0.01% 1806
2019
Q2 		$1K Hold
63
– – ﹤0.01% 1605
2019
Q1 		$1K Hold
63
– – ﹤0.01% 1727
2018
Q4 		$1K Buy
+63
New +$749 ﹤0.01% 1909
2016
Q4 		– Sell
-35
Closed -$2K – 2027
2016
Q3 		$2K Hold
35
– – ﹤0.01% 1738
2016
Q2 		$1K Sell
35
-1
-3% -$44 ﹤0.01% 1275
2016
Q1 		$1K Sell
36
-26
-42% -$1.02K ﹤0.01% 1432
2015
Q4 		$4K Buy
62
+25
+68% +$1.51K ﹤0.01% 1422
2015
Q3 		$2K Buy
+37
New +$2.15K ﹤0.01% 1481

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
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
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
AC
Armistice Capital New York $5.62B AUM 36.06% 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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

Bessemer Group's PRTA Position: Q4 2024 in Review

Bessemer Group sold out of Prothena Corp (PRTA) in Q4 2024, closing a stake of 55 shares — an estimated $1K sold.

Bessemer Group first reported a position in PRTA in Q3 2015 and held it in 22 quarters. The position peaked at $636K in Q2 2020. 170 funds tracked by Wall St. Rank hold PRTA as of Q4 2024.

  • Bessemer Group reported no remaining Prothena Corp position as of Q4 2024 after selling out during the quarter.
  • Bessemer Group sold 55 Prothena Corp shares in Q4 2024, an estimated $1K.
  • Bessemer Group first reported a position in Prothena Corp in Q3 2015 and held it in 22 quarters.
  • Bessemer Group's Prothena Corp position peaked at $636K in Q2 2020.
  • 170 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2024.

Based on Bessemer Group's 13F filing for Q4 2024, filed 13 Feb 2025.