ALLIANCEBERNSTEIN L.P.

Position in MRK — Merck & Co., Inc.

CIK 1109448 NASHVILLE, TN

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Position in MRK

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$1,359,455,750

+$450,810,905 QoQ

Shares Held

11,301,486

+30.9% QoQ

Ownership

0.458%

of shares outstanding

% of Portfolio

0.53%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 86.63950917604994.ToString("F0")% Shared 0.ToString("F0")% None 13.360490823950055.ToString("F0")%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

ALLIANCEBERNSTEIN L.P. holds $10,903,455,836 across 14 Drug Manufacturers - General names. MRK ranks #3 (12.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	4,427,764	$4,072,524,494
2	JNJ	Johnson & Johnson	6,948,656	$1,698,529,472
3	MRK	Merck & Co., Inc. This page	11,301,486	$1,359,455,750
4	ABBV	AbbVie Inc.	5,416,509	$1,178,036,542
5	AZN	Astrazeneca PLC	5,279,565	$1,041,235,809
6	GILD	Gilead Sciences, Inc.	5,729,225	$798,482,088
7	BMY	Bristol Myers Squibb Co	4,872,680	$295,528,042
8	AMGN	Amgen Inc	599,207	$210,830,982

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	$1,359,455,750	11,301,486	+30.9%	Shares	Defined	2026-05-15
2025-12-31	$908,644,845	8,632,385	+4.9%	Shares	Defined	2026-02-17
2025-09-30	$690,726,526	8,229,793	-7.1%	Shares	Defined	2025-11-14
2025-06-30	$700,896,572	8,854,176	-13.5%	Shares	Defined	2025-08-14
2025-03-31	$918,818,815	10,236,395	-7.9%	Shares	Defined	2025-05-15
2024-12-31	$1,105,190,866	11,109,679	-7.6%	Shares	Defined	2025-02-12
2024-09-30	$1,365,841,196	12,027,485	+6.1%	Shares	Defined	2024-11-14
2024-06-30	$1,402,877,706	11,331,807	+1.3%	Shares	Defined	2024-08-14
2024-03-31	$1,476,093,245	11,186,762	+24.3%	Shares	Defined	2024-05-14
2023-12-31	$980,889,679	8,997,337	-4.2%	Shares	Defined	2024-02-14
2023-09-30	$966,644,083	9,389,452	-1.1%	Shares	Defined	2023-11-14
2023-06-30	$1,095,726,016	9,495,849	-5.0%	Shares	Defined	2023-08-15
2023-03-31	$1,063,393,158	9,995,236	+13.2%	Shares	Defined	2023-05-15
2022-12-31	$979,338,674	8,826,847	+19.0%	Shares	Defined	2023-02-15
2022-09-30	$638,873,038	7,418,405	+1.1%	Shares	Defined	2022-11-15
2022-06-30	$669,170,477	7,339,810	+11.1%	Shares	Defined	2022-08-15
2022-03-31	$541,824,395	6,603,588	-1.3%	Shares	Defined	2022-05-13
2021-12-31	$512,968,457	6,693,221	+5.3%	Shares	Defined	2022-02-14
2021-09-30	$477,618,631	6,358,922	-9.4%	Shares	Defined	2021-11-10
2021-06-30	$545,956,987	7,020,149	-6.1%	Shares	Defined	2021-07-30
2021-03-31	$549,772,780	7,473,882	-2.6%	Shares	Defined	2021-05-06
2020-12-31	$598,748,802	7,671,015	-18.8%	Shares	Defined	2021-02-08
2020-09-30	$747,660,989	9,446,032	-18.7%	Shares	Defined	2020-11-12
2020-06-30	$857,216,409	11,617,256	-0.4%	Shares	Defined	2020-08-13
2020-03-31	$856,260,425	11,663,131	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.