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Avidity Biosciences
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Overview Fund Activity

204 hedge funds and large institutions have $3.85B invested in Avidity Biosciences in 2025 Q2 according to their latest regulatory filings, with 27 funds opening new positions, 84 increasing their positions, 72 reducing their positions, and 37 closing their positions.

Holders
204
Holders Change
-15
Holders Change %
-6.85%
% of All Funds
2.74%
Holding in Top 10
7
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-22.22%
% of All Funds
0.09%
New
27
Increased
84
Reduced
72
Closed
37
Calls
$8.33M
Puts
$2.27M
Net Calls
+$6.06M
Net Calls Change
+$27.3M

Top Buyers

1
Toronto Dominion Bank
1
Toronto Dominion Bank
Ontario, Canada
$100M
2
Norges Bank
2
Norges Bank
Norway
$28.3M
3
RCM
3
RA Capital Management
Massachusetts
$206M
4
RI
4
RTW Investments
New York
$273M
5
LGM
5
Logos Global Management
California
$27M

Top Sellers

1
DCM
1
Driehaus Capital Management
Illinois
$0
2
BCM
2
Boxer Capital Management
California
$0
3
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$306M
4
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$43.4M
5
BlackRock
5
BlackRock
New York
$265M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$460M 16,185,791 +570,727 +4%
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$307M 10,808,727 -529,371 -5%
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$306M 10,777,317 -649,379 -6%
RI
4
RTW Investments
New York
$273M 9,618,845 +871,919 +10%
BlackRock
5
BlackRock
New York
$265M 9,336,834 -580,637 -6%
Wellington Management Group
6
Wellington Management Group
Massachusetts
$263M 9,249,690 -434,866 -4%
Vanguard Group
7
Vanguard Group
Pennsylvania
$263M 9,248,302 +5,097 +0.1%
RCM
8
RA Capital Management
Massachusetts
$206M 7,266,031 +965,623 +15%
ACA
9
Avoro Capital Advisors
New York
$200M 7,050,000 -575,000 -8%
State Street
10
State Street
Massachusetts
$119M 4,201,509 -119,851 -3%
Toronto Dominion Bank
11
Toronto Dominion Bank
Ontario, Canada
$100M 3,532,825 +3,532,825 New
Geode Capital Management
12
Geode Capital Management
Massachusetts
$80.9M 2,847,965 +92,719 +3%
Bank of America
13
Bank of America
North Carolina
$52.2M 1,839,315 +264,827 +17%
O
14
OrbiMed
New York
$51.5M 1,812,886 – –
CC
15
Casdin Capital
New York
$50.4M 1,775,000 -270,000 -13%
PCH
16
Polar Capital Holdings
United Kingdom
$50.3M 1,770,387 -18,481 -1%
Adage Capital Partners
17
Adage Capital Partners
Massachusetts
$43.4M 1,527,000 -618,881 -29%
Goldman Sachs
18
Goldman Sachs
New York
$32.5M 1,145,534 +360,830 +46%
SL
19
Siren LLC
Connecticut
$31.5M 1,110,610 – –
Charles Schwab
20
Charles Schwab
California
$29.8M 1,048,219 +24,641 +2%
Northern Trust
21
Northern Trust
Illinois
$28.3M 997,055 -21,427 -2%
Norges Bank
22
Norges Bank
Norway
$28.3M 995,118 +995,118 New
Pictet Asset Management
23
Pictet Asset Management
Switzerland
$27.5M 967,602 +94,380 +11%
LGM
24
Logos Global Management
California
$27M 950,000 +600,000 +171%
Artisan Partners
25
Artisan Partners
Wisconsin
$25M 881,954 -46,273 -5%
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