Mackenzie Financial’s Prothena Corp PRTA Stock Holding History

Mackenzie Financial’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	$2.35M	Buy	+239,899	New	+$2.37M	﹤0.01%	1009

Other funds holding PRTA

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 New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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 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

Mackenzie Financial's PRTA Position: Q2 2026 in Review

Mackenzie Financial opened a new position in Prothena Corp (PRTA) in Q2 2026: 239,899 shares worth $2.35M. The stake represents ﹤0.01% of the portfolio and ranks #1009 among its holdings.

188 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

Mackenzie Financial held 239,899 shares of Prothena Corp worth $2.35M as of Q2 2026.
Prothena Corp was a new Mackenzie Financial position in Q2 2026.
Prothena Corp made up ﹤0.01% of Mackenzie Financial's portfolio in Q2 2026, its #1009 holding.
188 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Mackenzie Financial's 13F filing for Q2 2026, filed 13 Aug 2026.