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	35.38%	11.35%	53.27%
Industry	Drug Manufacturers - General Stocks	47.16%	2.15%	50.68%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	254.32M	10.21%	$26.77B
Blackrock funding, inc. /de	225.83M	9.01%	$27.17B
Blackrock	207.30M	8.18%	$25.66B
State street	119.33M	4.76%	$14.45B
Wellington management group llp	84.31M	3.36%	$10.14B
Geode capital management	59.56M	2.38%	$7.14B
Jpmorgan chase	52.97M	2.11%	$6.26B
Charles schwab investment management	49.77M	1.98%	$5.99B
Morgan stanley	47.63M	1.90%	$5.73B
Fmr	44.52M	1.78%	$5.35B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Wallace advisory group	115.41K	14.83%	$13.88M
Radnor capital management	519.44K	9.25%	$62.48M
Tri locum partners lp	446.87K	8.62%	$37.51M
Clark & stuart	103.08K	8.41%	$12.48M
Slocum, gordon & co llp	94.45K	7.73%	$11.36M
Healthinvest partners ab	33.85K	7.40%	$22.92M
Sector gamma as	260.34K	7.39%	$31.32M
Smead capital management	2.47M	6.47%	$297.28M
Round hill asset management	72.02K	5.67%	$8.66M
Karpas strategies	133.01K	5.16%	$16.47M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	37.98M	0.43%	37.98M
Jpmorgan chase	52.97M	0.40%	23.77M
Vanguard fiduciary trust	13.96M	0.43%	13.96M
Blackrock funding, inc. /de	225.83M	0.47%	6.73M
Vanguard global advisers	5.59M	0.36%	5.59M

Top Sellers

Holder	Shares	% Assets	Change
Dld asset management, lp	-	-	-47.50M
Actiam	979.68K	1.15%	-8.64M
Capital world investors	-	-	-7.91M
Arrowstreet capital, limited partnership	2.94M	0.19%	-7.01M
Alphinity investment management pty	-	-	-6.97M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	37.98M	0.43%	37.98M	$4.00B
Vanguard fiduciary trust	13.96M	0.43%	13.96M	$1.68B
Vanguard global advisers	5.59M	0.36%	5.59M	$671.90M
Vanguard asset management	5.00M	0.52%	5.00M	$601.89M
Vanguard investments australia	1.24M	0.43%	1.24M	$148.94M

Sold Out

Holder	Change
Davidson capital management	-1.00
Bayforest capital	-2.00
New millennium group	-4.00
Legacy bridge	-4.00
Enrich financial partners	-5.00

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	78.54M	3.18%	22.67K
Vanguard 500 Index Investor	63.20M	2.56%	-639.01K
iShares Core S&P 500 ETF	32.10M	1.30%	94.19K
Fidelity 500 Index	31.70M	1.28%	110.49K
SPDR® S&P 500 ETF	31.47M	1.25%	-460.97K
SPDR® S&P 500® ETF	30.32M	1.21%	373.18K
SPDR® S&P 500® ETF Trust	30.64M	1.21%	-160.60K
Schwab US Dividend Equity ETF™	29.86M	1.21%	25.73K
State Street® SPDR® S&P 500® ETF	29.67M	1.20%	96.68K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Feb 12, 2026	Guindo Chirfi	Chief Marketing Officer	Sell	$1.21M
Feb 10, 2026	Li Dean Y	Executive VP & President, MRL	Sell	$1.20M
Feb 09, 2026	Guindo Chirfi	Chief Marketing Officer	Sell	$1.18M
Feb 09, 2026	Zachary Jennifer	EVP, General Counsel	Sell	$4.63M
Feb 06, 2026	Williams David Michael	EVP,Chief Info&Digital Officer	Sell	$609.52K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	-	14
2025 Q4	-	2
2025 Q3	-	-
2025 Q2	-	1

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 47.16%, 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 (225.83M shares, 9.01%), and Blackrock (207.3M shares, 8.18%). Together, they hold 27.40% 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 14.83% of its assets in 115.41K Merck shares, valued at 13.88M$.

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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