Deeter Investments’s Prothena Corp PRTA Stock Holding History

Deeter Investments’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	–	Sell	-300,000	Closed	-$2.92M	–	133
2026 Q1	$2.92M	Buy	+300,000	New	+$2.75M	0.33%	54

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 $3.38T AUM 44.17% 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

Deeter Investments's PRTA Position: Q2 2026 in Review

Deeter Investments sold out of Prothena Corp (PRTA) in Q2 2026, closing a stake of 300,000 shares — an estimated $2.92M sold.

Deeter Investments first reported a position in PRTA in Q1 2026 and held it in 1 quarter. The position peaked at $2.92M in Q1 2026. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

Deeter Investments reported no remaining Prothena Corp position as of Q2 2026 after selling out during the quarter.
Deeter Investments sold 300,000 Prothena Corp shares in Q2 2026, an estimated $2.92M.
Deeter Investments first reported a position in Prothena Corp in Q1 2026 and held it in 1 quarter.
Deeter Investments's Prothena Corp position peaked at $2.92M in Q1 2026.
187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Deeter Investments's 13F filing for Q2 2026, filed 8 Oct 2026.