Merck MRK Institutional Ownership

NYSE MRK

$149.89 +1.59 (+1.07%)

As of: Oct 21, 2026 · 3:59 PM EDT

Institutions by Trading Activity

3,788 Institutions

Increased 1,837 48.5%

Unchanged 488 12.9%

Reduced 1,463 38.6%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

79.85%

▲+2.10 pp QoQ

Shares Held by Institutions

1.97Bn

of 2.47Bn outstanding

▲+2.61% QoQ

Shares Outstanding

2.47Bn

497.61Mn held outside 13F filers

Institutional Investors

3,788

filed 13F for Jun 2026

▲+45 vs prior quarter

Net Shares Added (QoQ)

+50.23Mn

accumulated since last quarter

Value of Holdings

$292.50Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 16, 2026

Merck & Co., Inc. (NYSE:MRK) counted 3,784 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

These investors held 79.85% of outstanding shares in Q2 2026, up from 77.76% the quarter before.
Total shares held in Merck rose 2.61% versus Q1 2026, while the number of holders rose 15.75% versus Q2 2025.
Of the 3,784 holders of MRK in Q2 2026, 1,835 added to their positions, 1,461 reduced their stakes and 488 left their positions unchanged.
In total, institutional investors held 1.97Bn shares of Merck at the end of Q2 2026, up 50.2Mn from the prior quarter and up 56.69Mn from a year earlier.
BlackRock, Inc. led 13F holders of MRK with 227Mn shares as of June 30, 2026, or 9.19% of shares outstanding.
Among existing holders, the largest additions to Merck in Q2 2026 came from Capital International Investors (+14.52Mn shares), Fisher Asset Management, LLC (+12.08Mn shares), Charles Schwab Investment Management Inc (+4.6Mn shares), Franklin Templeton Inc (+3.28Mn shares) and Dimensional Fund Advisors LP (+2.03Mn shares).
Among holders that kept a stake in Merck, the biggest sellers in Q2 2026 were JPMorgan Chase & Co (-9.09Mn shares), Nordea Investment Management AB (-5.02Mn shares), T. Rowe Price Associates Inc (-4.52Mn shares), Jennison Associates LLC (-3.52Mn shares) and Invesco Ltd. (-3.24Mn shares).
Per Business Quant data, the 10 largest holders of Merck at the end of Q2 2026 were BlackRock, Inc. (227Mn shares), Vanguard Capital Management LLC (161.32Mn shares), State Street Corp (120.41Mn shares), Wellington Management Group LLP (86.25Mn shares), Vanguard Portfolio Management LLC (67.74Mn shares), Geode Capital Management, LLC (60.74Mn shares), Charles Schwab Investment Management Inc (54.37Mn shares), Morgan Stanley (48.64Mn shares), FMR LLC (45.44Mn shares) and JPMorgan Chase & Co (43.89Mn shares).

Form 13F Holdings

3,793 Institutional Holders

Report period 30 Jun, 2026

Total shares held 1.97Bn

Of outstanding 79.85%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	226,999,837	9.19%	▲1,169,507	+0.52%	$29.17Bn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	161,323,174	6.53%	▲335,550	+0.21%	$20.73Bn
3	State Street Corp	0000093751	120,413,256	4.88%	▲1,087,583	+0.91%	$15.57Bn
4	WELLINGTON MANAGEMENT GROUP LLP	0000902219	86,249,283	3.49%	▲1,934,312	+2.29%	$11.08Bn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	67,738,969	2.74%	▲434,664	+0.65%	$8.70Bn
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	60,744,214	2.46%	▲1,186,060	+1.99%	$7.79Bn
7	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	54,365,289	2.20%	▲4,600,064	+9.24%	$6.99Bn
8	Morgan Stanley	0000895421	48,641,158	1.97%	▲1,008,671	+2.12%	$6.25Bn
9	FMR LLC	0000315066	45,440,355	1.84%	▲924,345	+2.08%	$5.84Bn
10	Jpmorgan Chase & Co	0000019617	43,886,420	1.78%	▼9,086,563	-17.15%	$5.68Bn
11	Fisher Asset Management, LLC	0000850529	38,516,263	1.56%	▲12,079,979	+45.69%	$4.95Bn
12	NORGES BANK	0001374170	36,983,784	1.50%	▲36,983,784	0.00%	$4.75Bn
13	Bank Of America Corp /De/	0000070858	30,535,208	1.24%	▼239,013	-0.78%	$3.92Bn
14	Northern Trust Corp	0000073124	26,275,718	1.06%	▼814,305	-3.01%	$3.38Bn
15	Goldman Sachs Group Inc	0000886982	22,075,139	0.89%	▲1,941,760	+9.64%	$2.84Bn
16	Franklin Templeton Inc	0000038777	19,548,585	0.79%	▲3,281,380	+20.17%	$2.51Bn
17	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0000861177	19,547,171	0.79%	▼867,648	-4.25%	$2.51Bn
18	Legal & General Group Plc	0000764068	18,873,343	0.76%	▼665,202	-3.40%	$2.43Bn
19	Invesco Ltd.	0000914208	18,611,171	0.75%	▼3,243,930	-14.84%	$2.39Bn
20	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	18,518,796	0.75%	▼4,524,046	-19.63%	$2.38Mn

Showing 1 to 20 of 3,793 holders