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Avidity Biosciences
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Overview Fund Activity

206 hedge funds and large institutions have $3.86B invested in Avidity Biosciences in 2025 Q2 according to their latest regulatory filings, with 27 funds opening new positions, 85 increasing their positions, 73 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
206
Holders Change
-13
Holders Change %
-5.94%
% of All Funds
2.76%
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
85
Reduced
73
Closed
38
Calls
$10.4M
Puts
$4.22M
Net Calls
+$6.2M
Net Calls Change
+$27.5M

Top Buyers

1
Toronto Dominion Bank
Toronto Dominion Bank
Ontario, Canada
$100M
2
RCM
RA Capital Management
Massachusetts
$206M
3
RI
RTW Investments
New York
$273M
4
LGM
Logos Global Management
California
$27M
5
Fidelity Investments
Fidelity Investments
Massachusetts
$460M

Top Sellers

1
DCM
Driehaus Capital Management
Illinois
$0
2
BCM
Boxer Capital Management
California
$0
3
Janus Henderson Group
Janus Henderson Group
United Kingdom
$306M
4
Adage Capital Partners
Adage Capital Partners
Massachusetts
$43.4M
5
BlackRock
BlackRock
New York
$265M
Name Holding Trade Value Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$460M +$16.2M +570,727 +4%
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$307M -$15M -529,371 -5%
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$306M -$18.4M -649,379 -6%
RI
4
RTW Investments
New York
$273M +$24.8M +871,919 +10%
BlackRock
5
BlackRock
New York
$265M -$16.5M -580,637 -6%
Wellington Management Group
6
Wellington Management Group
Massachusetts
$263M -$12.4M -434,866 -4%
Vanguard Group
7
Vanguard Group
Pennsylvania
$263M +$145K +5,097 +0.1%
RCM
8
RA Capital Management
Massachusetts
$206M +$27.4M +965,623 +15%
ACA
9
Avoro Capital Advisors
New York
$200M -$16.3M -575,000 -8%
State Street
10
State Street
Massachusetts
$119M -$3.4M -119,851 -3%
Toronto Dominion Bank
11
Toronto Dominion Bank
Ontario, Canada
$100M +$100M +3,532,825 New
Geode Capital Management
12
Geode Capital Management
Massachusetts
$80.9M +$2.63M +92,719 +3%
Bank of America
13
Bank of America
North Carolina
$52.2M +$7.52M +264,827 +17%
O
14
OrbiMed
New York
$51.5M – – –
CC
15
Casdin Capital
New York
$50.4M -$7.67M -270,000 -13%
PCH
16
Polar Capital Holdings
United Kingdom
$50.3M -$525K -18,481 -1%
Adage Capital Partners
17
Adage Capital Partners
Massachusetts
$43.4M -$17.6M -618,881 -29%
Goldman Sachs
18
Goldman Sachs
New York
$32.5M +$10.2M +360,830 +46%
SL
19
Siren LLC
Connecticut
$31.5M – – –
Charles Schwab
20
Charles Schwab
California
$29.8M +$700K +24,641 +2%
Northern Trust
21
Northern Trust
Illinois
$28.3M -$609K -21,427 -2%
Norges Bank
22
Norges Bank
Norway
$28.3M +$28.3M +995,118 New
Pictet Asset Management
23
Pictet Asset Management
Switzerland
$27.5M +$2.68M +94,380 +11%
LGM
24
Logos Global Management
California
$27M +$17M +600,000 +171%
Artisan Partners
25
Artisan Partners
Wisconsin
$25M -$1.31M -46,273 -5%
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