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Annexon
ANNX

Overview Fund Activity

146 hedge funds and large institutions have $192M invested in Annexon in 2025 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 55 increasing their positions, 40 reducing their positions, and 29 closing their positions.

Holders
146
Holders Change
-6
Holders Change %
-3.95%
% of All Funds
1.98%
Holding in Top 10
–
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-100%
% of All Funds
–
New
25
Increased
55
Reduced
40
Closed
29
Calls
$127K
Puts
$163K
Net Calls
-$36K
Net Calls Change
-$4K

Top Buyers

1
Ameriprise
1
Ameriprise
Minnesota
$7.69M
2
LGM
2
Logos Global Management
California
$7.72M
3
TAM
3
TFG Asset Management
Cayman Islands
$5.11M
4
SCM
4
Sio Capital Management
New York
$6.56M
5
Bank of America
5
Bank of America
North Carolina
$2M

Top Sellers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$88.2K
2
EAM
2
Eventide Asset Management
Massachusetts
$0
3
State Street
3
State Street
Massachusetts
$3.94M
4
RAM
4
Readystate Asset Management
Illinois
$0
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$25.6M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$25.6M 13,262,328 -962,055 -7%
BlackRock
2
BlackRock
New York
$16.5M 8,526,506 +40,319 +0.5%
BI
3
BVF Inc
California
$13.5M 7,000,000 – –
RG
4
Redmile Group
California
$12.2M 6,300,644 – –
Vanguard Group
5
Vanguard Group
Pennsylvania
$10.4M 5,379,659 -167,259 -3%
BCLSI
6
Bain Capital Life Sciences Investors
Massachusetts
$10.1M 5,249,069 – –
BG
7
Bellevue Group
Switzerland
$9.95M 5,157,290 – –
LGM
8
Logos Global Management
California
$7.72M 4,000,000 +1,450,000 +57%
Ameriprise
9
Ameriprise
Minnesota
$7.69M 3,985,295 +3,058,653 +330%
SCM
10
Sio Capital Management
New York
$6.56M 3,397,786 +1,030,779 +44%
TAM
11
TFG Asset Management
Cayman Islands
$5.11M 2,650,000 +1,250,000 +89%
CS
12
Candriam SCA
Luxembourg
$4.89M 2,534,230 – –
Geode Capital Management
13
Geode Capital Management
Massachusetts
$4.33M 2,245,010 +73,532 +3%
WP
14
Woodline Partners
California
$4.08M 2,114,696 -576,091 -21%
State Street
15
State Street
Massachusetts
$3.94M 2,039,826 -2,470,888 -55%
SFM
16
Sphera Funds Management
Israel
$3.41M 1,764,387 +521,348 +42%
JPMorgan Chase & Co
17
JPMorgan Chase & Co
New York
$2.76M 1,431,965 -79,552 -5%
Renaissance Technologies
18
Renaissance Technologies
New York
$2.24M 1,162,437 +668,737 +135%
Bank of America
19
Bank of America
North Carolina
$2M 1,038,724 +1,008,784 +3,369%
MOACM
20
Mutual of America Capital Management
New York
$1.99M 1,030,683 +1,003 +0.1%
Northern Trust
21
Northern Trust
Illinois
$1.98M 1,025,925 -3,825 -0.4%
Massachusetts Financial Services
22
Massachusetts Financial Services
Massachusetts
$1.97M 1,020,417 +3,851 +0.4%
Dimensional Fund Advisors
23
Dimensional Fund Advisors
Texas
$1.91M 986,879 -373,197 -27%
KCM
24
Kennedy Capital Management
Missouri
$1.69M 874,726 -217,108 -20%
Goldman Sachs
25
Goldman Sachs
New York
$1.62M 841,582 -475,429 -36%
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