JANUS HENDERSON GROUP PLC

Position in MRK — Merck & Co., Inc.

CIK 1274173 LONDON, X0

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Position in MRK

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$346,459,135

+$148,029,300 QoQ

Shares Held

2,880,199

+52.8% QoQ

Ownership

0.117%

of shares outstanding

% of Portfolio

0.18%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 90.51690525550492.ToString("F0")% None 9.483094744495085.ToString("F0")%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

JANUS HENDERSON GROUP PLC holds $11,353,030,401 across 14 Drug Manufacturers - General names. MRK ranks #7 (3.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	4,347,394	$3,998,602,577
2	AZN	Astrazeneca PLC	11,949,424	$2,356,665,399
3	JNJ	Johnson & Johnson	7,872,478	$1,924,348,519
4	ABBV	AbbVie Inc.	6,931,036	$1,507,431,018
5	AMGN	Amgen Inc	1,107,159	$389,553,892
6	NVS	Novartis AG	2,275,938	$347,649,529
7	MRK	Merck & Co., Inc. This page	2,880,199	$346,459,135
8	GILD	Gilead Sciences, Inc.	1,972,639	$274,926,696

All Filings in MRK

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$346,459,135	2,880,199	+52.8%	Shares	Defined	2026-05-18
2025-12-31	$198,429,835	1,885,140	-10.9%	Shares	Defined	2026-02-17
2025-09-30	$177,557,354	2,115,541	+290.2%	Shares	Defined	2025-11-14
2025-06-30	$42,913,980	542,117	-80.4%	Shares	Defined	2025-08-14
2025-03-31	$248,219,251	2,765,366	-52.8%	Shares	Defined	2025-05-15
2024-12-31	$583,400,956	5,864,505	-33.1%	Shares	Defined	2025-02-14
2024-09-30	$995,878,726	8,769,626	-18.0%	Shares	Defined	2024-11-14
2024-06-30	$1,323,505,936	10,690,678	+2.2%	Shares	Defined	2024-08-14
2024-03-31	$1,380,350,588	10,461,164	-13.2%	Shares	Defined	2024-05-15
2023-12-31	$1,314,445,089	12,056,917	-2.2%	Shares	Defined	2024-02-14
2023-09-30	$1,269,383,277	12,330,095	-8.6%	Shares	Defined	2023-11-14
2023-06-30	$1,555,984,762	13,484,572	-1.3%	Shares	Defined	2023-08-14
2023-03-31	$1,452,966,845	13,656,987	+2.0%	Shares	Defined	2023-05-15
2022-12-31	$1,485,646,016	13,390,230	-2.2%	Shares	Defined	2023-02-14
2022-09-30	$1,179,438,631	13,695,293	+25.3%	Shares	Defined	2023-01-13
2022-06-30	$996,546,628	10,930,642	-8.6%	Shares	Defined	2022-08-15
2022-03-31	$981,132,154	11,957,735	-5.1%	Shares	Defined	2022-05-16
2021-12-31	$965,340,425	12,595,778	-27.9%	Shares	Defined	2022-02-14
2021-09-30	$1,312,711,064	17,477,181	-1.3%	Shares	Defined	2021-11-16
2021-06-30	$1,377,329,019	17,710,287	-24.5%	Shares	Defined	2021-08-16
2021-03-31	$1,726,344,828	23,468,782	-1.8%	Shares	Defined	2021-05-17
2020-12-31	$1,866,124,415	23,908,304	-13.8%	Shares	Defined	2021-02-16
2020-09-30	$2,195,671,686	27,740,360	-12.2%	Shares	Defined	2020-11-16
2020-06-30	$2,331,392,487	31,595,736	+7.8%	Shares	Defined	2020-08-14
2020-03-31	$2,151,685,084	29,308,122	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.