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Annexon

128 hedge funds and large institutions have $239M invested in Annexon in 2025 Q2 according to their latest regulatory filings, with 19 funds opening new positions, 50 increasing their positions, 34 reducing their positions, and 37 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
128
Holders Change
-18
Holders Change %
-12.33%
% of All Funds
1.72%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.01%
New
19
Increased
50
Reduced
34
Closed
37
Calls
$50K
Puts
$153K
Net Calls
-$103K
Net Calls Change
-$67K
Name Holding Trade Value Shares
Change
Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$37.7M +$5.84M +2,432,898 +18%
BlackRock
2
BlackRock
New York
$19.1M -$1.35M -564,138 -7%
BI
3
BVF Inc
California
$16.8M
RG
4
Redmile Group
California
$15.1M
Vanguard Group
5
Vanguard Group
Pennsylvania
$12.9M -$32.7K -13,620 -0.3%
BCLSI
6
Bain Capital Life Sciences Investors
Massachusetts
$12.6M
BG
7
Bellevue Group
Switzerland
$12.4M
SCM
8
Sio Capital Management
New York
$9.83M +$1.68M +697,978 +21%
TAM
9
TFG Asset Management
Cayman Islands
$6.74M +$384K +160,000 +6%
CS
10
Candriam SCA
Luxembourg
$6.08M
Millennium Management
11
Millennium Management
New York
$6.03M +$5.61M +2,338,831 +1,334%
LGM
12
Logos Global Management
California
$5.78M -$3.82M -1,590,000 -40%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$5.48M +$95.4K +39,763 +2%
Ameriprise
14
Ameriprise
Minnesota
$5.2M -$4.37M -1,819,117 -46%
State Street
15
State Street
Massachusetts
$4.75M -$141K -58,842 -3%
SFM
16
Sphera Funds Management
Israel
$4.23M
Goldman Sachs
17
Goldman Sachs
New York
$3.91M +$1.89M +789,067 +94%
Bank of America
18
Bank of America
North Carolina
$3.49M +$994K +414,071 +40%
MOACM
19
Mutual of America Capital Management
New York
$2.59M +$116K +48,278 +5%
WP
20
Woodline Partners
California
$2.53M -$2.55M -1,060,987 -50%
SCM
21
Sirios Capital Management
Massachusetts
$2.37M +$530K +220,891 +29%
Massachusetts Financial Services
22
Massachusetts Financial Services
Massachusetts
$2.37M -$79K -32,904 -3%
Dimensional Fund Advisors
23
Dimensional Fund Advisors
Texas
$2.14M -$233K -97,016 -10%
KCM
24
Kennedy Capital Management
Missouri
$2.05M -$46K -19,153 -2%
Morgan Stanley
25
Morgan Stanley
New York
$2M +$315K +131,184 +19%