BARCLAYS PLC

Position in MRK — Merck & Co., Inc.

CIK 312069 LONDON, X0

Back to MRK Full portfolio

Position in MRK

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$873,015,763

-$36,078,072 QoQ

Shares Held

6,793,897

-10.1% QoQ

Ownership

0.275%

of shares outstanding

% of Portfolio

0.36%

of 13F equity value

Holder Rank

#41

of 3,778 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Derivatives in MRK

reported options exposure · as of Dec 31, 2025

CallValue

$497,048,246

CallShares

4,722,100

PutValue

$4,641,966

PutShares

44,100

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

BARCLAYS PLC holds $8,073,972,287 across 18 Drug Manufacturers - General names. MRK ranks #5 (10.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	1,143,891	$1,372,017,294
2	ABBV	AbbVie Inc.	5,015,515	$1,262,104,193
3	AZN	Astrazeneca PLC	6,592,403	$1,250,051,454
4	JNJ	Johnson & Johnson	4,651,595	$1,181,365,579
5	MRK	Merck & Co., Inc. This page	6,793,897	$873,015,763
6	GILD	Gilead Sciences, Inc.	5,113,242	$646,006,993
7	AMGN	Amgen Inc	1,326,673	$480,414,824
8	PFE	Pfizer Inc	16,746,801	$403,262,965

All Filings in MRK

Export CSV

50 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$873,015,763	6,793,897	-10.1%	Shares	Defined	2026-08-14
2026-03-31	$909,093,835	7,557,518	+58.3%	Shares	Defined	2026-05-15
2025-12-31	$4,641,966	44,100	+28.2%	Put	Sole	2026-02-13
2025-12-31	$497,048,246	4,722,100	+615.3%	Call	Sole	2026-02-13
2025-12-31	$502,478,185	4,773,686	-36.5%	Shares	Sole	2026-02-13
2025-09-30	$2,887,192	34,400	+95.5%	Put	Sole	2026-03-31
2025-09-30	$630,556,603	7,512,887	+27.4%	Shares	Defined	2026-03-31
2025-09-30	$55,410,586	660,200	+1212.5%	Call	Sole	2026-03-31
2025-06-30	$466,724,824	5,895,968	+0.7%	Shares	Defined	2026-02-27
2025-06-30	$3,981,748	50,300	-79.9%	Call	Sole	2026-02-27
2025-06-30	$1,393,216	17,600	-85.4%	Put	Sole	2026-02-27
2025-03-31	$525,711,032	5,856,852	-9.4%	Shares	Defined	2026-03-17
2025-03-31	$22,440,000	250,000	+5108.3%	Call	Sole	2026-03-17
2025-03-31	$10,843,008	120,800	-17.8%	Put	Sole	2026-03-17
2024-12-31	$14,613,612	146,900	-1.8%	Put	Sole	2026-03-19
2024-12-31	$643,238,771	6,466,011	-6.1%	Shares	Defined	2026-03-19
2024-12-31	$477,504	4,800	0.0%	Call	Sole	2026-03-19
2024-09-30	$16,988,576	149,600	+111.0%	Put	Sole	2026-03-31
2024-09-30	$782,153,013	6,887,575	-14.4%	Shares	Defined	2026-03-31
2024-09-30	$545,088	4,800	-96.9%	Call	Sole	2026-03-31
2024-06-30	$995,949,209	8,044,824	-7.2%	Shares	Sole	2026-03-23
2024-06-30	$19,114,720	154,400	+111.8%	Call	Sole	2026-03-23
2024-03-31	$9,355,255	70,900	-47.9%	Put	Sole	2026-03-24
2024-03-31	$9,619,155	72,900	-48.9%	Call	Sole	2026-03-24
2024-03-31	$1,144,244,932	8,671,807	+58.4%	Shares	Sole	2026-03-24
2023-12-31	$15,546,252	142,600	-56.2%	Call	Sole	2026-03-24
2023-12-31	$596,920,583	5,475,331	-18.9%	Shares	Defined	2026-03-24
2023-12-31	$14,826,720	136,000	-60.1%	Put	Sole	2026-03-24
2023-09-30	$695,250,482	6,753,283	-6.9%	Shares	Sole	2026-03-26
2023-06-30	$837,144,524	7,254,914	+182.9%	Shares	Defined	2026-03-27
2023-03-31	$272,848,855	2,564,610	-68.7%	Shares	Defined	2026-03-30
2023-03-31	$36,236,434	340,600	-42.5%	Put	Sole	2026-03-30
2023-03-31	$34,672,501	325,900	+2.5%	Call	Sole	2026-03-30
2022-12-31	$65,771,160	592,800	+107.7%	Put	Sole	2026-03-30
2022-12-31	$35,282,100	318,000	+474.0%	Call	Sole	2026-03-30
2022-12-31	$908,106,663	8,184,828	+91.6%	Shares	Defined	2026-03-30
2022-09-30	$24,578,648	285,400	+193.0%	Put	Sole	2022-11-03
2022-09-30	$4,771,048	55,400	+313.4%	Call	Sole	2022-11-03
2022-09-30	$367,968,107	4,272,737	+54.7%	Shares	Defined	2022-11-03
2022-06-30	$251,761,485	2,761,451	-35.1%	Shares	Defined	2022-08-12
2022-06-30	$1,221,678	13,400	-97.1%	Call	Sole	2022-08-12
2022-06-30	$8,879,958	97,400	+175.1%	Put	Sole	2022-08-12
2022-03-31	$2,904,570	35,400	-20.1%	Put	Sole	2022-05-16
2022-03-31	$348,949,540	4,252,889	-50.9%	Shares	Sole	2022-05-16
2021-12-31	$663,373,995	8,655,715	+29.3%	Shares	Sole	2022-02-14
2021-12-31	$3,395,152	44,300	-69.5%	Put	Sole	2022-02-14
2021-12-31	$35,675,920	465,500	+712.4%	Call	Sole	2022-02-14
2021-09-30	$502,783,784	6,693,966	—	Shares	Defined	2021-11-09
2021-09-30	$10,905,972	145,200	—	Put	Sole	2021-11-09
2021-09-30	$4,303,803	57,300	—	Call	Sole	2021-11-09
No filing history on record for this holder in this stock.