Franklin Resources
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Franklin Resources’s Prothena Corp PRTA Stock Holding History

Franklin Resources’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
Q1 		– Sell
-47,251
Closed -$451K – 3272
2025
Q4 		$451K Sell
47,251
-13,921
-23% -$142K ﹤0.01% 2447
2025
Q3 		$597K Buy
61,172
+5,094
+9% +$39.2K ﹤0.01% 2350
2025
Q2 		$340K Buy
56,078
+36,331
+184% +$273K ﹤0.01% 2510
2025
Q1 		$244K Buy
19,747
+60
+0.3% +$848 ﹤0.01% 2585
2024
Q4 		$273K Buy
+19,687
New +$311K ﹤0.01% 2545
2023
Q3 		– Sell
-20,739
Closed -$1.42M – 2763
2023
Q2 		$1.42M Buy
+20,739
New +$1.34M ﹤0.01% 1527
2023
Q1 		– Sell
-4,200
Closed -$253K – 2377
2022
Q4 		$253K Sell
4,200
-2,150
-34% -$126K ﹤0.01% 1919
2022
Q3 		$385K Buy
+6,350
New +$201K ﹤0.01% 1765
2022
Q2 		– Sell
-9,236
Closed -$338K – 2440
2022
Q1 		$338K Sell
9,236
-514
-5% -$18.5K ﹤0.01% 1971
2021
Q4 		$482K Buy
9,750
+115
+1% +$6.38K ﹤0.01% 1916
2021
Q3 		$686K Buy
+9,635
New +$598K ﹤0.01% 1772

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
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
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
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return

Franklin Resources's PRTA Position: Q1 2026 in Review

Franklin Resources sold out of Prothena Corp (PRTA) in Q1 2026, closing a stake of 47,251 shares — an estimated $451K sold.

Franklin Resources first reported a position in PRTA in Q3 2021 and held it in 11 quarters. The position peaked at $1.42M in Q2 2023. 185 funds tracked by Wall St. Rank hold PRTA as of Q1 2026.

  • Franklin Resources reported no remaining Prothena Corp position as of Q1 2026 after selling out during the quarter.
  • Franklin Resources sold 47,251 Prothena Corp shares in Q1 2026, an estimated $451K.
  • Franklin Resources first reported a position in Prothena Corp in Q3 2021 and held it in 11 quarters.
  • Franklin Resources's Prothena Corp position peaked at $1.42M in Q2 2023.
  • 185 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2026.

Based on Franklin Resources's 13F filing for Q1 2026, filed 13 May 2026.