JO
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John Overdeck’s Annexon ANNX Stock Holding History

John Overdeck’s Portfolio ANNX Stock Details ANNX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.93M Buy
512,796
+41,405
+9% +$229K ﹤0.01% 2648
2026
Q1 		$2.61M Buy
471,391
+139,353
+42% +$784K ﹤0.01% 2564
2025
Q4 		$1.67M Buy
332,038
+52,904
+19% +$202K ﹤0.01% 2572
2025
Q3 		$851K Buy
279,134
+77,974
+39% +$194K ﹤0.01% 2685
2025
Q2 		$483K Buy
+201,160
New +$403K ﹤0.01% 2602
2025
Q1 		– Sell
-137,183
Closed -$704K – 3185
2024
Q4 		$704K Sell
137,183
-3,734
-3% -$23K ﹤0.01% 2370
2024
Q3 		$834K Sell
140,917
-185,487
-57% -$1.1M ﹤0.01% 2227
2024
Q2 		$1.6M Sell
326,404
-47,044
-13% -$243K ﹤0.01% 1701
2024
Q1 		$2.68M Buy
373,448
+346,865
+1,305% +$1.8M 0.01% 1293
2023
Q4 		$121K Sell
26,583
-10,517
-28% -$26K ﹤0.01% 2925
2023
Q3 		$87.6K Sell
37,100
-201,201
-84% -$609K ﹤0.01% 2758
2023
Q2 		$839K Buy
238,301
+141,377
+146% +$618K ﹤0.01% 2046
2023
Q1 		$373K Buy
+96,924
New +$533K ﹤0.01% 2324
2022
Q3 		– Sell
-86,769
Closed -$327K – 2458
2022
Q2 		$327K Sell
86,769
-216,850
-71% -$663K ﹤0.01% 1997
2022
Q1 		$829K Buy
303,619
+248,061
+446% +$1.53M ﹤0.01% 1796
2021
Q4 		$638K Buy
+55,558
New +$898K ﹤0.01% 3006

Other funds holding ANNX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RG
Redmile Group San Francisco, California $1.49B AUM 208.7% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
MCO
MAK Capital One New York $714M AUM 68.07% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

John Overdeck's ANNX Position: Q2 2026 in Review

John Overdeck increased its Annexon (ANNX) stake by 8.8% in Q2 2026, buying an estimated $229K and bringing the position to 512,796 shares worth $2.93M. The position accounts for ﹤0.01% of the portfolio, ranked #2648.

John Overdeck first reported a position in ANNX in Q4 2021 and has held it in 16 quarters since. 214 funds tracked by Wall St. Rank hold ANNX as of Q2 2026.

  • John Overdeck held 512,796 shares of Annexon worth $2.93M as of Q2 2026.
  • John Overdeck bought 41,405 Annexon shares in Q2 2026, an estimated $229K.
  • Annexon made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #2648 holding.
  • John Overdeck first reported a position in Annexon in Q4 2021 and has held it in 16 quarters since.
  • 214 funds tracked by Wall St. Rank held Annexon as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.