Rockefeller Capital Management
PRTA icon

Rockefeller Capital Management’s Prothena Corp PRTA Stock Holding History

Rockefeller Capital 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
2026
Q2 		$50.2K Sell
5,132
-481
-9% -$4.75K ﹤0.01% 3368
2026
Q1 		$54.6K Buy
5,613
+1,023
+22% +$9.38K ﹤0.01% 3232
2025
Q4 		$43.8K Buy
4,590
+185
+4% +$1.88K ﹤0.01% 3137
2025
Q3 		$43K Buy
+4,405
New +$33.9K ﹤0.01% 2985
2024
Q1 		– Sell
-12,614
Closed -$458K – 1716
2023
Q4 		$458K Sell
12,614
-6,685
-35% -$257K ﹤0.01% 1368
2023
Q3 		$931K Buy
19,299
+5,638
+41% +$335K ﹤0.01% 1102
2023
Q2 		$933K Buy
13,661
+1,662
+14% +$107K ﹤0.01% 1116
2023
Q1 		$581K Buy
11,999
+11,900
+12,020% +$629K ﹤0.01% 1291
2022
Q4 		$5K Hold
99
– – ﹤0.01% 3339
2022
Q3 		$6K Sell
99
-1
-1% -$32 ﹤0.01% 3293
2022
Q2 		$2K Buy
100
+15
+18% +$439 ﹤0.01% 3820
2022
Q1 		$3K Hold
85
– – ﹤0.01% 3521
2021
Q4 		$4K Hold
85
– – ﹤0.01% 3369
2021
Q3 		$6K Hold
85
– – ﹤0.01% 3120
2021
Q2 		$4K Hold
85
– – ﹤0.01% 3105
2021
Q1 		$2K Hold
85
– – ﹤0.01% 3118
2020
Q4 		$1K Hold
85
– – ﹤0.01% 2767
2020
Q3 		$0 Hold
85
– – ﹤0.01% 2749
2020
Q2 		$1K Hold
85
– – ﹤0.01% 2492
2020
Q1 		$1K Hold
85
– – ﹤0.01% 2303
2019
Q4 		$1K Hold
85
– – ﹤0.01% 2000
2019
Q3 		$1K Buy
+85
New +$755 ﹤0.01% 1870

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 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
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return

Rockefeller Capital Management's PRTA Position: Q2 2026 in Review

Rockefeller Capital Management reduced its Prothena Corp (PRTA) stake by 8.6% in Q2 2026, selling an estimated $4.75K and leaving 5,132 shares worth $50.2K. The position accounts for ﹤0.01% of the portfolio, ranked #3368.

Rockefeller Capital Management first reported a position in PRTA in Q3 2019 and has held it in 22 quarters since. The position peaked at $933K in Q2 2023. 188 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • Rockefeller Capital Management held 5,132 shares of Prothena Corp worth $50.2K as of Q2 2026.
  • Rockefeller Capital Management sold 481 Prothena Corp shares in Q2 2026, an estimated $4.75K.
  • Prothena Corp made up ﹤0.01% of Rockefeller Capital Management's portfolio in Q2 2026, its #3368 holding.
  • Rockefeller Capital Management first reported a position in Prothena Corp in Q3 2019 and has held it in 22 quarters since.
  • Rockefeller Capital Management's Prothena Corp position peaked at $933K in Q2 2023.
  • 188 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Rockefeller Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.