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
Q3 		– Sell
-2
Closed -$20 – 3883
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

Penbrook Management
Penbrook Management New York $169M AUM 32.52% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $91.6B AUM 30% 1-Year Est. Return
Focused Wealth Management
Focused Wealth Management Newburgh, New York $1.17B AUM 16.89% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $179B AUM 16.96% 1-Year Est. Return
Hennion & Walsh Asset Management
Hennion & Walsh Asset Management Parsippany, New Jersey $3.42B AUM 25.82% 1-Year Est. Return
Pinnacle Associates
Pinnacle Associates New York $8.92B AUM 43.91% 1-Year Est. Return
Achmea Investment Management
Achmea Investment Management Zeist, Netherlands $12.6B AUM 25.68% 1-Year Est. Return
Chicago Partners Investment Group
Chicago Partners Investment Group Chicago, Illinois $5.45B AUM 19.52% 1-Year Est. Return
Covestor
Covestor London, United Kingdom $157M AUM 35.87% 1-Year Est. Return
Mogy Joel R Investment Counsel
Mogy Joel R Investment Counsel Beverly Hills, California $1.87B AUM 18.64% 1-Year Est. Return

AssetMark Inc's PRTA Position: Q3 2026 in Review

AssetMark Inc sold out of Prothena Corp (PRTA) in Q3 2026, closing a stake of 2 shares — an estimated $20 sold.

AssetMark Inc first reported a position in PRTA in Q4 2023 and held it in 2 quarters. The position peaked at $109 in Q4 2023. 42 funds tracked by Wall St. Rank hold PRTA as of Q3 2026.

  • AssetMark Inc reported no remaining Prothena Corp position as of Q3 2026 after selling out during the quarter.
  • AssetMark Inc sold 2 Prothena Corp shares in Q3 2026, an estimated $20.
  • AssetMark Inc first reported a position in Prothena Corp in Q4 2023 and held it in 2 quarters.
  • AssetMark Inc's Prothena Corp position peaked at $109 in Q4 2023.
  • 42 funds tracked by Wall St. Rank held Prothena Corp as of Q3 2026.

Based on AssetMark Inc's 13F filing for Q3 2026, filed 21 Oct 2026.