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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

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more capital invested

Capital invested by funds: $ → $

less ownership

Funds ownership:

less funds holding

Funds holding:

49% less first-time investments, than exits

New positions opened: 19 | Existing positions closed: 37

67% less call options, than puts

Call options by funds: $50K | Put options by funds: $153K

Holders
128
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$50K
Puts
$153K
Net Calls
Net Calls Change

Top Buyers

1 +$5.84M
2 +$5.61M
3 +$1.89M
4
SCM
Sio Capital Management
New York
+$1.68M
5
Bank of America
Bank of America
North Carolina
+$994K

Top Sellers

1 -$4.37M
2 -$3.82M
3 -$3.31M
4
WP
Woodline Partners
California
-$2.55M
5
BlackRock
BlackRock
New York
-$1.35M
Name Holding Trade Value Shares
Change
Change in
Stake
AFG
76
Allegheny Financial Group
Pennsylvania
$103K
Citigroup
77
Citigroup
New York
$90.7K
Lido Advisors
78
Lido Advisors
California
$84K
CFG
79
Citizens Financial Group
Rhode Island
$84K
VIA
80
Virtus Investment Advisers
Connecticut
$83.3K
New York State Common Retirement Fund
81
New York State Common Retirement Fund
New York
$82.8K
VF
82
Virtu Financial
New York
$73K
HSBC Holdings
83
HSBC Holdings
United Kingdom
$72.3K
Marshall Wace
84
Marshall Wace
United Kingdom
$72K
FA
85
Forefront Analytics
Pennsylvania
$66.2K
VOYA Investment Management
86
VOYA Investment Management
Georgia
$65.9K
Comerica Bank
87
Comerica Bank
Texas
$61.5K
ProShare Advisors
88
ProShare Advisors
Maryland
$57K
CUAMC
89
China Universal Asset Management Company
China
$52.9K
PFSRSONJ
90
Police & Firemen's Retirement System of New Jersey
New Jersey
$49.4K
QC
91
Quadrature Capital
United Kingdom
$49.1K
DCM
92
Driehaus Capital Management
Illinois
$48.6K
Los Angeles Capital Management
93
Los Angeles Capital Management
California
$48.5K
Carson Wealth (CWM LLC)
94
Carson Wealth (CWM LLC)
Nebraska
$43K
CBA
95
Coastal Bridge Advisors
Connecticut
$40.8K
State Board of Administration of Florida Retirement System
96
State Board of Administration of Florida Retirement System
Florida
$37.5K
TRCT
97
Tower Research Capital (TRC)
New York
$37.3K
EGM
98
Engineers Gate Manager
New York
$32.2K
Citadel Advisors
99
Citadel Advisors
Florida
$31.8K
VPIM
100
Vanguard Personalized Indexing Management
California
$29.5K