Avidity Biosciences Ownership | Who Owns Avidity Biosciences?


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Avidity Biosciences Ownership Summary


Avidity Biosciences is owned by 49.89% institutional investors, 4.08% insiders, and 46.03% retail investors. Fmr is the largest institutional shareholder, holding 16.65% of RNA shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 4.27% of its assets in Avidity Biosciences shares.

RNA Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockAvidity Biosciences49.89%4.08%46.03%
SectorHealthcare Stocks 42.53%10.81%46.67%
IndustryBiotech Stocks 45.24%10.75%44.01%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Fmr21.59M16.65%$940.50M
Vanguard group13.22M10.20%$575.98M
Blackrock8.62M9.89%$352.23M
Rtw investments, lp11.37M8.77%$495.51M
Wellington management group llp10.07M7.76%$438.54M
Price t rowe associates inc /md/9.79M7.55%$426.44M
Blackrock funding, inc. /de9.20M7.10%$400.96M
Ra capital management8.64M6.67%$376.49M
Avoro capital advisors7.64M5.90%$333.09M
Janus henderson group7.05M5.72%$205.13M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Alethea capital management446.13K12.49%$19.44M
University of wisconsin foundation289.20K10.67%$12.60M
Casdin capital1.78M6.47%$77.55M
Rtw investments, lp11.37M6.11%$495.51M
Bioimpact capital760.02K5.42%$33.11M
Silverarc capital management844.63K4.96%$36.80M
Ra capital management8.64M4.64%$376.49M
Avoro capital advisors7.64M4.31%$333.09M
Boxer capital1.73M3.72%$70.56M
Logos global management lp600.00K2.34%$26.14M

Top Buyers

HolderShares% AssetsChange
Fmr21.59M0.05%5.40M
Vanguard group13.22M0.01%3.97M
Blackrock8.62M0.01%2.46M
Janus henderson group7.05M0.10%2.16M
Bellevue group2.15M1.95%2.15M

Top Sellers

HolderShares% AssetsChange
Cowen and company---5.13M
Toronto dominion bank---3.53M
Price t rowe associates inc /md/9.79M0.05%-1.02M
Nuveen asset management352.50K0.00%-706.06K
5am venture management---665.55K

New Positions

HolderShares% AssetsChangeValue
Bellevue group2.15M1.95%2.15M$93.80M
Suvretta capital management750.00K0.84%750.00K$32.68M
Clearbridge investments741.69K0.02%741.69K$32.32M
Norges bank724.79K0.00%724.79K$21.08M
Artal group655.55K0.68%655.55K$26.78M

Sold Out

HolderChange
Twin peaks wealth advisors-3.00
Ronald blue trust-8.00
Hollencrest capital management-10.00
Nelson, van denburg & campbell wealth management group-15.00
Cva family office-20.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025164-23.72%64,667,711-52.44%490.45%1176.36%37-51.32%
Jun 30, 2025214-6.96%135,949,3463.28%1041.01%109-16.15%7616.92%
Mar 31, 2025231-7.23%133,386,3704.47%1030.96%130-7.14%65-12.16%
Dec 31, 2024106-57.77%39,596,419-68.40%320.31%62-60.00%30-52.38%
Sep 30, 202425026.26%125,295,28411.90%1010.62%15419.38%6328.57%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Fidelity Growth Compy Commingled Pl S5.49M4.27%109.14K
Fidelity Growth Compy Commingled Pl O4.86M4.11%-69.00K
US Small-Cap Growth II Equity Comp3.95M3.28%-484.27K
Fidelity Growth Company Fund3.99M3.10%77.74K
Vanguard US Total Market Shares ETF3.53M2.93%3.12K
Vanguard Total Stock Mkt Idx Inv3.57M2.78%-76.02K
T. Rowe Price New Horizons3.54M2.75%-414.46K
Vanguard Health Care Inv2.83M2.35%-196.40K
iShares Russell 2000 ETF2.76M2.15%-
T. Rowe Price Health Sciences2.27M1.77%-25.49K

Recent Insider Transactions


DateNameRoleActivityValue
Oct 22, 2025Hughes Steven George Chief Medical OfficerSell$105.01K
Oct 15, 2025McCarthy Teresa Chief Human Resources OfficerSell$1.00M
Oct 03, 2025Mosbrooker Eric Chief Commercial OfficerSell$297.77K
Sep 22, 2025Hughes Steven George Chief Medical OfficerSell$89.60K
Sep 15, 2025McCarthy Teresa Chief Human Resources OfficerSell$621.14K

Insider Transactions Trends


DateBuySell
2025 Q4-3
2025 Q3-23
2025 Q2-5
2025 Q1-23
2024 Q4-14

RNA Ownership FAQ


Who Owns Avidity Biosciences?

Avidity Biosciences shareholders are primarily institutional investors at 49.89%, followed by 4.08% insiders and 46.03% retail investors. The average institutional ownership in Avidity Biosciences's industry, Biotech Stocks , is 45.24%, which Avidity Biosciences exceeds.

Who owns the most shares of Avidity Biosciences?

Avidity Biosciences’s largest shareholders are Fmr (21.59M shares, 16.65%), Vanguard group (13.22M shares, 10.20%), and Blackrock (8.62M shares, 9.89%). Together, they hold 36.74% of Avidity Biosciences’s total shares outstanding.

Does Blackrock own Avidity Biosciences?

Yes, BlackRock owns 9.89% of Avidity Biosciences, totaling 8.62M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 352.23M$. In the last quarter, BlackRock increased its holdings by 2.46M shares, a 39.84% change.

Who is Avidity Biosciences’s biggest shareholder by percentage of total assets invested?

Alethea capital management is Avidity Biosciences’s biggest shareholder by percentage of total assets invested, with 12.49% of its assets in 446.13K Avidity Biosciences shares, valued at 19.44M$.

Who is the top mutual fund holder of Avidity Biosciences shares?

Fidelity Growth Compy Commingled Pl S is the top mutual fund holder of Avidity Biosciences shares, with 4.27% of its total shares outstanding invested in 5.49M Avidity Biosciences shares.

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