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

Insider buying vs selling

Have Alnylam Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Kevin Joseph FitzgeraldCSO EVP Head of Research2026-03-05153$326.24
$49.91kSell
Kevin Joseph FitzgeraldCSO EVP Head of Research2026-03-05148$324.60
$48.04kSell
Kevin Joseph FitzgeraldCSO EVP Head of Research2026-03-05233$323.25
$75.32kSell
Kevin Joseph FitzgeraldCSO EVP Head of Research2026-03-05124$321.81
$39.90kSell
Pushkal GargEVP Chief RD2026-03-05500$326.08
$163.04kSell
Pushkal GargEVP Chief RD2026-03-05654$322.33
$210.80kSell
Pushkal GargEVP Chief RD2026-03-05740$323.55
$239.43kSell
Pushkal GargEVP Chief RD2026-03-05510$324.59
$165.54kSell
Kevin Joseph FitzgeraldCSO EVP Head of Research2026-03-0479$321.82
$25.42kSell
Kevin Joseph FitzgeraldCSO EVP Head of Research2026-03-0459$320.81
$18.93kSell

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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$5.35BInstitution
Fmr LLC11.99%15,902,149$5.22BInstitution
Ag Novartis11.16%14,800,620$4.86BInsider
Vanguard Group Inc10.22%13,553,932$4.45BInstitution
Sanofi7.96%10,554,134$3.46BInsider
Blackrock Inc7.84%10,400,874$3.41BInstitution
Capital Research Global Investors5.11%6,779,708$2.22BInstitution
Jpmorgan Chase Co3.56%4,719,999$1.55BInstitution
State Street Corp2.43%3,228,956$1.06BInstitution
Geode Capital Management LLC2.00%2,650,722$869.86MInstitution

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ALNY vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALNY82.36%17.64%Net SellingNet Selling
ARGX48.47%0.00%
ONC2.35%32.03%Net BuyingNet Buying
INSM85.00%15.00%Net SellingNet Selling
RPRX61.89%17.28%Net SellingNet Selling

Alnylam Pharmaceuticals Stock Ownership FAQ

Who owns Alnylam Pharmaceuticals?

Alnylam Pharmaceuticals (NASDAQ: ALNY) is owned by 97.82% institutional shareholders, 20.95% 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 $4.70B.

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