NYSE: MRK
Merck & Co Inc Stock Ownership - Who owns Merck & Co?

Insider buying vs selling

Have Merck & Co Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Chirfi GuindoChief Marketing Officer2026-02-1210,000$121.46
$1.21MSell
Dean Y. LiExecutive VP President MRL2026-02-1010,235$117.52
$1.20MSell
Jennifer ZacharyEVP General Counsel2026-02-0938,835$119.15
$4.63MBuy
Jennifer ZacharyEVP General Counsel2026-02-0956,792$119.15
$6.77MSell
Jennifer ZacharyEVP General Counsel2026-02-0956,792$119.15
$6.77MBuy
Jennifer ZacharyEVP General Counsel2026-02-0925,946$119.15
$3.09MSell
Jennifer ZacharyEVP General Counsel2026-02-0925,946$119.15
$3.09MBuy
Chirfi GuindoChief Marketing Officer2026-02-0910,000$118.41
$1.18MSell
Jennifer ZacharyEVP General Counsel2026-02-0938,835$119.15
$4.63MSell
David Michael WilliamsEVPChief InfoDigital Officer2026-02-065,000$121.91
$609.53kSell

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Net Insider Buy/Sell (L12M) Ownership

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MRK Shareholders

What type of owners hold Merck & Co Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Vanguard Group Inc10.29%254,322,763$30.74BInstitution
Blackrock Inc8.86%219,095,465$26.48BInstitution
State Street Corp4.86%120,040,168$14.51BInstitution
Wellington Management Group LLP3.50%86,435,458$10.45BInstitution
Geode Capital Management LLC2.43%60,047,984$7.26BInstitution
Charles Schwab Investment Management Inc1.96%48,563,804$5.87BInstitution
Morgan Stanley1.82%44,946,021$5.43BInstitution
Fmr LLC1.65%40,836,566$4.94BInstitution
Norges Bank1.54%37,981,502$4.59BInstitution
Jpmorgan Chase Co1.18%29,199,978$3.53BInstitution

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MRK vs General Drug Manufacturer Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MRK79.70%0.22%Net BuyingNet Selling
NVS7.03%0.00%
AZN31.67%0.00%
ABBV74.94%0.16%Net SellingNet Selling
AMGN80.98%1.01%Net SellingNet Selling

Merck & Co Stock Ownership FAQ

Who owns Merck & Co?

Merck & Co (NYSE: MRK) is owned by 79.70% institutional shareholders, 0.22% Merck & Co insiders, and 20.08% retail investors. Vanguard Group Inc is the largest individual Merck & Co shareholder, owning 254.32M shares representing 10.29% of the company. Vanguard Group Inc's Merck & Co shares are currently valued at $30.74B.

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