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
David E. I. PyottDirector2026-06-0117$302.65
$5.15kSell
David E. I. PyottDirector2026-06-01495$300.72
$148.86kSell
David E. I. PyottDirector2026-06-01921$297.71
$274.19kSell
David E. I. PyottDirector2026-06-011,175$298.91
$351.22kSell
David E. I. PyottDirector2026-06-011,222$299.87
$366.44kSell
Amy W. SchulmanDirector2026-05-1311,250$70.20
$789.75kBuy
Melissa McLaughlinChief Human Resources Officer2026-04-0656$320.14
$17.93kSell
Melissa McLaughlinChief Human Resources Officer2026-04-06199$333.94
$66.45kSell
Melissa McLaughlinChief Human Resources Officer2026-04-06293$331.89
$97.24kSell
Melissa McLaughlinChief Human Resources Officer2026-04-06829$330.46
$273.95kSell

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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
Ag Novartis11.06%14,800,620$3.94BInsider
Sanofi7.89%10,554,134$2.81BInsider
Atlas Venture Fund V LP0.57%760,675$202.42MInsider
Paul Schimmel0.48%643,469$171.23MInsider
Phillip A. Sharp0.20%266,899$71.02MInsider
John Maraganore0.17%230,796$61.42MInsider
Yvonne Greenstreet0.07%96,102$25.57MInsider
Barry E. Greene0.06%76,987$20.49MInsider
Jeffrey V. Poulton0.05%61,862$16.46MInsider
Curated Wealth Partners LLC0.03%35,628$9.48MInstitution

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ALNY vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALNY0.10%20.79%Net Selling
RPRX0.06%18.01%Net SellingNet Selling
ROIV0.08%92.24%Net SellingNet Selling
ONC0.00%30.90%Net SellingNet Selling
INSM0.10%17.37%Net SellingNet Selling

Alnylam Pharmaceuticals Stock Ownership FAQ

Who owns Alnylam Pharmaceuticals?

Alnylam Pharmaceuticals (NASDAQ: ALNY) is owned by 0.10% institutional shareholders, 20.79% Alnylam Pharmaceuticals insiders, and 79.11% retail investors. Ag Novartis is the largest individual Alnylam Pharmaceuticals shareholder, owning 14.80M shares representing 11.06% of the company. Ag Novartis's Alnylam Pharmaceuticals shares are currently valued at $3.85B.

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