GI
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GAMMA Investing’s Prothena Corp PRTA Stock Holding History

GAMMA Investing’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 		$18.8K Sell
2,246
-342
-13% -$3.06K ﹤0.01% 2982
2026
Q2 		$25.3K Buy
2,588
+433
+20% +$4.28K ﹤0.01% 2712
2026
Q1 		$20.9K Buy
2,155
+1,645
+323% +$15.1K ﹤0.01% 2691
2025
Q4 		$4.87K Buy
510
+124
+32% +$1.26K ﹤0.01% 3289
2025
Q3 		$3.77K Buy
386
+189
+96% +$1.45K ﹤0.01% 3279
2025
Q2 		$1.2K Sell
197
-288
-59% -$2.16K ﹤0.01% 3503
2025
Q1 		$6K Buy
485
+358
+282% +$5.06K ﹤0.01% 3010
2024
Q4 		$1.76K Buy
127
+60
+90% +$946 ﹤0.01% 3259
2024
Q3 		$1.12K Sell
67
-300
-82% -$6.45K ﹤0.01% 3227
2024
Q2 		$7.58K Buy
367
+309
+533% +$6.69K ﹤0.01% 2388
2024
Q1 		$1.44K Buy
58
+18
+45% +$535 ﹤0.01% 2852
2023
Q4 		$1.14K Buy
+40
New +$1.54K ﹤0.01% 2757

Other funds holding PRTA

VCM
Versant Capital Management Phoenix, Arizona $1.17B AUM 28.44% 1-Year Est. Return
FFA
Farther Finance Advisors San Francisco, California $14.2B AUM 18.33% 1-Year Est. Return
CA
CoreCap Advisors Southfield, Michigan $3.48B AUM 21.43% 1-Year Est. Return

GAMMA Investing's PRTA Position: Q3 2026 in Review

GAMMA Investing reduced its Prothena Corp (PRTA) stake by 13% in Q3 2026, selling an estimated $3.06K and leaving 2,246 shares worth $18.8K. The position accounts for ﹤0.01% of the portfolio, ranked #2982.

GAMMA Investing first reported a position in PRTA in Q4 2023 and has held it in 12 quarters since. The position peaked at $25.3K in Q2 2026. 4 funds tracked by Wall St. Rank hold PRTA as of Q3 2026.

  • GAMMA Investing held 2,246 shares of Prothena Corp worth $18.8K as of Q3 2026.
  • GAMMA Investing sold 342 Prothena Corp shares in Q3 2026, an estimated $3.06K.
  • Prothena Corp made up ﹤0.01% of GAMMA Investing's portfolio in Q3 2026, its #2982 holding.
  • GAMMA Investing first reported a position in Prothena Corp in Q4 2023 and has held it in 12 quarters since.
  • GAMMA Investing's Prothena Corp position peaked at $25.3K in Q2 2026.
  • 4 funds tracked by Wall St. Rank held Prothena Corp as of Q3 2026.

Based on GAMMA Investing's 13F filing for Q3 2026, filed 8 Oct 2026.