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NASDAQ: ALNY
Alnylam Pharmaceuticals Inc Stock Ownership - Who owns Alnylam Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Alnylam Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Melissa McLaughlinChief Human Resources Officer2026-04-06829$330.46
$273.95kSell
Melissa McLaughlinChief Human Resources Officer2026-04-06293$331.89
$97.24kSell
Melissa McLaughlinChief Human Resources Officer2026-04-06199$333.94
$66.45kSell
Melissa McLaughlinChief Human Resources Officer2026-04-0656$320.14
$17.93kSell
Melissa McLaughlinChief Human Resources Officer2026-04-06909$329.76
$299.75kSell
Melissa McLaughlinChief Human Resources Officer2026-04-02224$321.64
$72.05kSell
Melissa McLaughlinChief Human Resources Officer2026-04-0281$323.64
$26.21kSell
Melissa McLaughlinChief Human Resources Officer2026-04-028$325.49
$2.60kSell
Melissa McLaughlinChief Human Resources Officer2026-04-02265$316.61
$83.90kSell
Melissa McLaughlinChief Human Resources Officer2026-04-02359$317.44
$113.96kSell

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Net Insider Buy/Sell (L12M) Ownership

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ALNY Shareholders

What type of owners hold Alnylam Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Capital World Investors12.29%16,301,772$5.25BInstitution
Fmr LLC11.99%15,902,149$5.12BInstitution
Ag Novartis11.16%14,800,620$4.77BInsider
Vanguard Group Inc10.22%13,553,932$4.37BInstitution
Sanofi7.96%10,554,134$3.40BInsider
Blackrock Inc7.84%10,400,874$3.35BInstitution
Capital Research Global Investors5.11%6,779,708$2.18BInstitution
Jpmorgan Chase Co3.56%4,719,999$1.52BInstitution
State Street Corp2.43%3,228,956$1.04BInstitution
Geode Capital Management LLC2.00%2,650,722$853.82MInstitution

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ALNY vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALNY82.35%17.65%Net SellingNet Selling
ARGX48.47%0.00%
ONC2.35%32.03%Net BuyingNet Buying
INSM85.00%15.00%Net SellingNet Selling
RPRX61.89%17.27%Net SellingNet Selling
View Top Biotech Stocks

Alnylam Pharmaceuticals Stock Ownership FAQ

Who owns Alnylam Pharmaceuticals?

Alnylam Pharmaceuticals (NASDAQ: ALNY) is owned by 97.82% institutional shareholders, 20.96% Alnylam Pharmaceuticals insiders, and 0.00% retail investors. Ag Novartis is the largest individual Alnylam Pharmaceuticals shareholder, owning 14.80M shares representing 11.16% of the company. Ag Novartis's Alnylam Pharmaceuticals shares are currently valued at $4.77B.

If you're new to stock investing, here's how to buy Alnylam Pharmaceuticals stock.
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