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Avidity Biosciences
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Overview Fund Activity

219 hedge funds and large institutions have $3.96B invested in Avidity Biosciences in 2025 Q1 according to their latest regulatory filings, with 32 funds opening new positions, 95 increasing their positions, 65 reducing their positions, and 45 closing their positions.

Holders
219
Holders Change
-16
Holders Change %
-6.81%
% of All Funds
2.98%
Holding in Top 10
9
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+12.5%
% of All Funds
0.12%
New
32
Increased
95
Reduced
65
Closed
45
Calls
$9.04M
Puts
$30.3M
Net Calls
-$21.3M
Net Calls Change
-$19.9M

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$361M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$286M
3
Bank of America
3
Bank of America
North Carolina
$46.5M
4
RI
4
RTW Investments
New York
$258M
5
T. Rowe Price Investment Management
5
T. Rowe Price Investment Management
Maryland
$22.8M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$461M
2
BCM
2
Boxer Capital Management
California
$25.5M
3
Morgan Stanley
3
Morgan Stanley
New York
$15.5M
4
CAM
4
Cormorant Asset Management
Massachusetts
$11.8M
5
Adage Capital Partners
5
Adage Capital Partners
Massachusetts
$63.3M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$461M 15,615,064 -894,542 -5%
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$361M 11,426,696 +4,373,686 +62%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$335M 11,338,098 +295,275 +3%
BlackRock
4
BlackRock
New York
$293M 9,917,471 -14,895 -0.1%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$286M 9,684,556 +1,578,459 +19%
Vanguard Group
6
Vanguard Group
Pennsylvania
$273M 9,243,205 -188,706 -2%
RI
7
RTW Investments
New York
$258M 8,746,926 +814,056 +10%
ACA
8
Avoro Capital Advisors
New York
$225M 7,625,000 +125,000 +2%
RCM
9
RA Capital Management
Massachusetts
$186M 6,300,408 – –
State Street
10
State Street
Massachusetts
$128M 4,321,360 -280,831 -6%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$81.4M 2,755,246 -52,209 -2%
Adage Capital Partners
12
Adage Capital Partners
Massachusetts
$63.3M 2,145,881 -606,063 -22%
CC
13
Casdin Capital
New York
$60.4M 2,045,000 – –
O
14
OrbiMed
New York
$53.5M 1,812,886 +700,000 +63%
PCH
15
Polar Capital Holdings
United Kingdom
$52.8M 1,788,868 +516,977 +41%
Bank of America
16
Bank of America
North Carolina
$46.5M 1,574,488 +1,395,900 +782%
DCM
17
Driehaus Capital Management
Illinois
$37.5M 1,270,931 +42,873 +3%
SL
18
Siren LLC
Connecticut
$32.8M 1,110,610 -16,685 -1%
Charles Schwab
19
Charles Schwab
California
$30.2M 1,023,578 -5,353 -0.5%
Northern Trust
20
Northern Trust
Illinois
$30.1M 1,018,482 -60,952 -6%
Artisan Partners
21
Artisan Partners
Wisconsin
$27.4M 928,227 -87,024 -9%
Pictet Asset Management
22
Pictet Asset Management
Switzerland
$25.8M 873,222 +74,194 +9%
WP
23
Woodline Partners
California
$25.6M 865,925 +105 +0%
BCM
24
Boxer Capital Management
California
$25.5M 865,000 -862,388 -50%
Goldman Sachs
25
Goldman Sachs
New York
$23.2M 784,704 +21,649 +3%
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