AssetMark Inc
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AssetMark Inc’s Prothena Corp PRTA Stock Holding History

AssetMark Inc’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 		$20 Buy
+2
New +$20 ﹤0.01% 3535
2024
Q1 		– Sell
-3
Closed -$109 – 2076
2023
Q4 		$109 Buy
+3
New +$115 ﹤0.01% 1813

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

AssetMark Inc's PRTA Position: Q2 2026 in Review

AssetMark Inc opened a new position in Prothena Corp (PRTA) in Q2 2026: 2 shares worth $20. The stake represents ﹤0.01% of the portfolio and ranks #3535 among its holdings. This is a return to the name: AssetMark Inc previously reported a position in PRTA as recently as Q4 2023.

AssetMark Inc first reported a position in PRTA in Q4 2023 and has held it in 2 quarters since. The position peaked at $109 in Q4 2023. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • AssetMark Inc held 2 shares of Prothena Corp worth $20 as of Q2 2026.
  • Prothena Corp was a new AssetMark Inc position in Q2 2026.
  • Prothena Corp made up ﹤0.01% of AssetMark Inc's portfolio in Q2 2026, its #3535 holding.
  • AssetMark Inc first reported a position in Prothena Corp in Q4 2023 and has held it in 2 quarters since.
  • AssetMark Inc's Prothena Corp position peaked at $109 in Q4 2023.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on AssetMark Inc's 13F filing for Q2 2026, filed 30 Jul 2026.