Merck Ownership | Who Owns Merck?

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Merck Ownership Summary

Merck is owned by 74.77% institutional investors, 0.06% insiders, and 25.16% retail investors. Vanguard group is the largest institutional shareholder, holding 10.21% of MRK shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.19% of its assets in Merck shares.

MRK Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Merck	74.77%	0.06%	25.16%
Sector	Healthcare Stocks	35.56%	12.08%	52.36%
Industry	Drug Manufacturers - General Stocks	45.56%	5.78%	48.65%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	254.32M	10.21%	$26.77B
Blackrock funding, inc. /de	227.00M	9.18%	$29.17B
Blackrock	207.30M	8.18%	$25.66B
Vanguard capital management	161.32M	6.53%	$20.73B
State street	120.41M	4.87%	$15.57B
Wellington management group llp	86.25M	3.49%	$11.08B
Geode capital management	60.74M	2.46%	$7.79B
Charles schwab investment management	54.37M	2.20%	$6.99B
Sixth street partners management company	54.37M	2.20%	$6.99B
Morgan stanley	48.64M	1.97%	$6.25B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Wallace advisory group	115.34K	13.94%	$14.82M
Radnor capital management	518.90K	9.36%	$66.68M
Tri locum partners lp	446.87K	8.62%	$37.51M
Clark & stuart	101.77K	8.26%	$13.16M
Slocum, gordon & co llp	93.18K	7.95%	$11.97M
Healthinvest partners ab	189.36K	6.55%	$24.33M
Smead capital management	2.33M	6.43%	$299.98M
Sector gamma as	217.01K	6.05%	$27.89M
Round hill asset management	71.35K	5.76%	$9.17M
Karpas strategies	133.01K	5.16%	$16.47M

Top Buyers

Holder	Shares	% Assets	Change
Sixth street partners management company	54.37M	0.93%	54.37M
Norges bank	36.98M	0.47%	36.98M
Capital investors	15.39M	0.41%	14.52M
Fisher asset management	38.52M	1.47%	12.08M
Charles schwab investment management	54.37M	0.93%	4.60M

Top Sellers

Holder	Shares	% Assets	Change
Dld asset management, lp	-	-	-47.50M
Jpmorgan chase	43.89M	0.31%	-9.09M
Capital world investors	-	-	-7.91M
Alphinity investment management pty	-	-	-6.97M
Nordea investment management ab	3.50M	0.36%	-5.02M

New Positions

Holder	Shares	% Assets	Change	Value
Sixth street partners management company	54.37M	0.93%	54.37M	$6.99B
Norges bank	36.98M	0.47%	36.98M	$4.75B
Axa investment managers	1.21M	0.27%	1.21M	$101.48M
Qube research	1.04M	0.12%	1.04M	$134.18M
Temasek (private)	816.10K	0.28%	816.10K	$104.87M

Sold Out

Holder	Change
Davidson capital management	-1.00
New millennium group	-4.00
Legacy bridge	-4.00
Enrich financial partners	-5.00
Bridge generations wealth management	-6.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	3,769	0.94%	1,874,904,744	-4.65%	74	1.20%	1,725	-9.83%	1,539	10.24%
Dec 31, 2025	2,028	-40.23%	535,809,039	-72.47%	21	0.36%	1,039	-32.62%	781	-44.53%
Sep 30, 2025	2,170	-35.84%	639,181,127	-66.41%	25	0.45%	1,005	-31.02%	924	-38.97%
Jun 30, 2025	3,337	-4.47%	1,989,017,310	2.53%	79	1.35%	1,434	-5.53%	1,491	-5.15%
Mar 31, 2025	3,440	-5.34%	1,927,587,269	-2.09%	76	1.26%	1,491	-10.83%	1,553	-0.19%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	80.32M	3.19%	128.13K
Vanguard Total Stock Mkt Idx Inv	78.42M	3.18%	-269.78K
Vanguard Morn Total Stk Mkt Idx Investor	78.42M	3.18%	-269.78K
Vanguard 500 Index Investor	64.15M	2.60%	-828.99K
Schwab US Dividend Equity ETF™	34.80M	1.41%	89.60K
iShares Core S&P 500 ETF	33.32M	1.35%	53.13K
Fidelity 500 Index	31.68M	1.28%	-78.85K
SPDR® S&P 500 ETF	31.47M	1.25%	-460.97K
State Street® SPDR® S&P 500® ETF	30.48M	1.23%	25.76K
SPDR® S&P 500® ETF	30.32M	1.21%	373.18K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 13, 2026	Guindo Chirfi	EVP, Access, Policy & Comms	Sell	$1.35M
Aug 12, 2026	Zachary Jennifer	EVP, General Counsel	Sell	$10.72M
Aug 12, 2026	DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Sell	$1.46M
Aug 11, 2026	DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Sell	$973.16K
Aug 10, 2026	DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Sell	$2.71M

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	-	13
2026 Q2	-	-
2026 Q1	-	14
2025 Q4	-	2
2025 Q3	-	-

MRK Ownership FAQ

Who Owns Merck?

Merck shareholders are primarily institutional investors at 74.77%, followed by 0.06% insiders and 25.17% retail investors. The average institutional ownership in Merck's industry, Drug Manufacturers - General Stocks, is 45.56%, which Merck exceeds.

Who owns the most shares of Merck?

Merck’s largest shareholders are Vanguard group (254.32M shares, 10.21%), Blackrock funding, inc. /de (227M shares, 9.18%), and Blackrock (207.3M shares, 8.18%). Together, they hold 27.58% of Merck’s total shares outstanding.

Does Blackrock own Merck?

Yes, BlackRock owns 8.18% of Merck, totaling 207.3M shares as of Jun 2024. This represents 0.58% of BlackRock's total assets, with a market value of 25.66B$. In the last quarter, BlackRock increased its holdings by 279.84K shares, a 0.14% change.

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

Wallace advisory group is Merck’s biggest shareholder by percentage of total assets invested, with 13.94% of its assets in 115.34K Merck shares, valued at 14.82M$.

Who is the top mutual fund holder of Merck shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Merck shares, with 3.19% of its total shares outstanding invested in 80.32M Merck shares.

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