What does CUSIP 58933Y105 represent in this 13F holders report?

CUSIP 58933Y105 is the security identifier for MRK - Merck & Co., Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held MRK - Merck & Co., Inc. - Common Stock in Q3 2018?

2020 institutional investors reported MRK - Merck & Co., Inc. - Common Stock for Q3 2018. Use the holders table for investor-level position and value details.

Merck & Co., Inc. - Common Stock (MRK)

CUSIP: 58933Y105

Q3 2018 13F Holders as of 30 Sep 2018

Type / Class: Equity / Common Stock
Shares outstanding: 2,527,521,347
Total 13F shares: 1,984,848,823
Share change: +49,310,658
Total reported value: $140,793,973,040
Put/Call ratio: 84%
Price per share: $70.94
Number of holders: 2,020
Value change: +$3,600,893,701
Number of buys: 846
Number of sells: 941

Quarterly Holders Quick Answers

What is CUSIP 58933Y105?
CUSIP 58933Y105 identifies MRK - Merck & Co., Inc. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2018
Previous quarter: Q2 2018

Recent filing periods for CUSIP 58933Y105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of MRK - Merck & Co., Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
VANGUARD GROUP INC	13F	Company	8%	201,909,297	$12,255,894,000	—	30 Jun 2018	13F
BlackRock Finance, Inc.	13F	Company	7.3%	185,546,933	$11,262,699,000	—	30 Jun 2018	13F
STATE STREET CORP	13F	Company	4.3%	109,400,038	$6,640,735,000	—	30 Jun 2018	13F
Capital World Investors	13F	Company	4.2%	104,997,673	$6,373,359,000	—	30 Jun 2018	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	2.9%	74,299,418	$4,509,974,000	—	30 Jun 2018	13F
FRANKLIN RESOURCES INC	13F	Company	1.8%	45,043,076	$2,734,109,000	—	30 Jun 2018	13F
JPMORGAN CHASE & CO	13F	Company	1.8%	44,948,657	$2,728,383,000	—	30 Jun 2018	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.7%	42,618,526	$2,586,944,000	—	30 Jun 2018	13F
BANK OF AMERICA CORP /DE/	13F	Company	1.7%	42,514,377	$2,580,623,000	—	30 Jun 2018	13F
NORTHERN TRUST CORP	13F	Company	1.3%	32,610,158	$1,979,437,000	—	30 Jun 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.2%	30,700,659	$1,859,634,000	—	30 Jun 2018	13F
NORGES BANK	13F	Company	1.1%	28,937,845	$1,756,527,000	—	30 Jun 2018	13F
DEUTSCHE BANK AG\	13F	Company	1.1%	26,672,575	$1,619,025,000	—	30 Jun 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.99%	25,026,984	$1,519,139,000	—	30 Jun 2018	13F
Invesco Ltd.	13F	Company	0.81%	20,531,555	$1,246,264,000	—	30 Jun 2018	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.66%	16,587,705	$1,006,873,000	—	30 Jun 2018	13F
MORGAN STANLEY	13F	Company	0.63%	15,905,833	$965,485,000	—	30 Jun 2018	13F
STATE FARM MUTUAL AUTOMOBILE INSURANCE CO	13F	Company	0.6%	15,145,800	$919,350,000	—	30 Jun 2018	13F
MACQUARIE GROUP LTD	13F	Company	0.58%	14,733,548	$894,326,000	—	30 Jun 2018	13F
Boston Partners	13F	Company	0.58%	14,549,625	$883,163,000	—	30 Jun 2018	13F
Clearbridge Investments, LLC	13F	Company	0.52%	13,057,700	$792,602,000	—	30 Jun 2018	13F
Legal & General Group Plc	13F	Company	0.51%	12,782,343	$775,911,000	—	30 Jun 2018	13F
JANUS HENDERSON GROUP PLC	13F	Company	0.49%	12,486,915	$757,959,000	—	30 Jun 2018	13F
ROYAL BANK OF CANADA	13F	Company	0.49%	12,301,055	$746,672,000	—	30 Jun 2018	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.47%	11,891,443	$722,047,000	—	30 Jun 2018	13F
Capital International Investors	13F	Company	0.47%	11,856,719	$719,703,000	—	30 Jun 2018	13F
UBS Group AG	13F	Company	0.45%	11,265,222	$683,798,000	—	30 Jun 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.44%	11,080,686	$672,598,000	—	30 Jun 2018	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.43%	10,959,137	$665,220,000	—	30 Jun 2018	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	0.42%	10,688,039	$648,765,000	—	30 Jun 2018	13F
Swiss National Bank	13F	Company	0.38%	9,661,901	$586,477,000	—	30 Jun 2018	13F
LSV ASSET MANAGEMENT	13F	Company	0.38%	9,602,693	$582,883,000	—	30 Jun 2018	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.37%	9,359,865	$568,144,000	—	30 Jun 2018	13F
PNC FINANCIAL SERVICES GROUP, INC.	13F	Company	0.37%	9,281,571	$563,391,000	—	30 Jun 2018	13F
OppenheimerFunds, Inc.	13F	Company	0.37%	9,230,370	$560,283,000	—	30 Jun 2018	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.36%	9,142,564	$554,953,634	—	30 Jun 2018	13F
D. E. Shaw & Co., Inc.	13F	Company	0.35%	8,778,153	$532,834,000	—	30 Jun 2018	13F
AMERICAN INTERNATIONAL GROUP, INC.	13F	Company	0.35%	8,747,355	$530,964,000	—	30 Jun 2018	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	0.35%	8,742,471	$530,668,000	—	30 Jun 2018	13F
Fisher Asset Management, LLC	13F	Company	0.31%	7,928,206	$481,242,000	—	30 Jun 2018	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.31%	7,718,298	$468,501,000	—	30 Jun 2018	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.3%	7,685,630	$466,518,000	—	30 Jun 2018	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.3%	7,533,772	$457,299,000	—	30 Jun 2018	13F
CANADA PENSION PLAN INVESTMENT BOARD	13F	Company	0.3%	7,531,991	$457,192,000	—	30 Jun 2018	13F
NORDEA INVESTMENT MANAGEMENT AB	13F	Company	0.29%	7,336,286	$445,313,000	—	30 Jun 2018	13F
Capital Research Global Investors	13F	Company	0.28%	7,187,319	$436,270,000	—	30 Jun 2018	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.28%	7,061,011	$428,603,000	—	30 Jun 2018	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.28%	6,986,154	$424,060,000	—	30 Jun 2018	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.27%	6,741,219	$409,181,000	—	30 Jun 2018	13F
TEACHERS ADVISORS, LLC	13F	Company	0.26%	6,658,088	$404,146,000	—	30 Jun 2018	13F

Institutional Holders of Merck & Co., Inc. - Common Stock (MRK) as of Q3 2018

As of 30 Sep 2018, Merck & Co., Inc. - Common Stock (MRK) was held by 2,020 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 1,984,848,823 shares. The largest 10 holders included Vanguard Group Inc, BlackRock Inc., STATE STREET CORP, Capital World Investors, WELLINGTON MANAGEMENT GROUP LLP, PRICE T ROWE ASSOCIATES INC /MD/, BANK OF AMERICA CORP /DE/, JPMORGAN CHASE & CO, FRANKLIN RESOURCES INC, and Bank of New York Mellon Corp. This page lists 2,022 institutional shareholders reporting positions in this security for the Q3 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2018 vs Q2 2018 Across Filers

Q2 2018 holders

1,985

Q3 2018 holders

2,020

Holder diff

Investor	Q2 2018 Shares	Q3 2018 Shares	Share Diff	Share Chg %	Q2 2018 Value $	Q3 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.