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Annexon

146 hedge funds and large institutions have $192M invested in Annexon in 2025 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 55 increasing their positions, 41 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

34% more repeat investments, than reductions

Existing positions increased: 55 | Existing positions reduced: 41

4% less funds holding

Funds holding: 152146 (-6)

14.32% less ownership

Funds ownership: 105.23%90.91% (-14%)

17% less first-time investments, than exits

New positions opened: 24 | Existing positions closed: 29

22% less call options, than puts

Call options by funds: $127K | Put options by funds: $163K

67% less capital invested

Capital invested by funds: $575M → $192M (-$383M)

100% less funds holding in top 10

Funds holding in top 10: 30 (-3)

Holders
146
Holders Change
-6
Holders Change %
-3.95%
% of All Funds
1.96%
Holding in Top 10
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-100%
% of All Funds
New
24
Increased
55
Reduced
41
Closed
29
Calls
$127K
Puts
$163K
Net Calls
-$36K
Net Calls Change
-$4K
Name Holding Trade Value Shares
Change
Change in
Stake
SAM
176
Smartleaf Asset Management
Massachusetts
-$610 -119 Closed