MRK MERCK & CO INC

COM (common), issuer CIK 310158

3,740 managers (3,807 13F filers) reported a position in MRK shares at 2026-03-31, 1,931,442,014 shares in all. 256 filers opened a position and 123 filers sold out during the quarter.

Managers: 3,740
13F filers: 3,807
New: 256
Added: 1,467
Reduced: 1,592
Sold out: 123
Shares held by filers: 1,931,442,014

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

Holder	Shares	Value	% of portfolio	Change	Source
Hills Bank & Trust Coin group Hills Bank & Trust Co	5,493	$661K	0.03%	+1,120	13F-HR Timeline Group
Trail Ridge Investment Advisors, LLC	5,493	$661K	0.29%	-107	13F-HR Timeline
Western Financial Corp/CA	5,484	$660K	0.26%	new	13F-HR Timeline
WEDGE CAPITAL MANAGEMENT L L P/NC	5,469	$658K	0.01%	+497	13F-HR Timeline
FARMERS TRUST CO	5,468	$658K	0.1%	-292	13F-HR Timeline
CLEAR WAVE WEALTH MANAGEMENT LLC	5,465	$657K	0.17%		13F-HR Timeline
Alteri Wealth LLC	5,460	$657K	0.21%	+1,785	13F-HR Timeline
Atlanta Consulting Group Advisors, LLC	5,421	$657K	0.14%	+160	13F-HR Timeline
Dempze Nancy E	5,455	$656K	0.36%	-750	13F-HR Timeline
Resurgent Financial Advisors LLC	5,453	$656K	0.24%	+1,749	13F-HR Timeline
Ponta Wealth Partners, LLC	5,447	$655K	0.53%	+105	13F-HR Timeline
JNBA Financial Advisors	5,441	$654K	0.05%	-299	13F-HR Timeline
HAZLETT, BURT & WATSON, INC.	5,440	$653K	0.2%	+25	13F-HR Timeline
HHM Wealth Advisors, LLC	5,426	$653K	0.08%	-362	13F-HR Timeline
Worthington Financial Partners, LLC	5,416	$651K	0.56%	0	13F-HR Timeline
O'ROURKE & COMPANY, Inc	5,415	$651K	0.26%	+11	13F-HR Timeline
PENOBSCOT WEALTH MANAGEMENT	5,408	$651K	0.19%	-17	13F-HR Timeline
Ironwood Financial, llc	5,395	$649K	0.11%	0	13F-HR Timeline
CONGRESS ASSET MANAGEMENT CO	5,371	$646K	<0.01%	-565	13F-HR Timeline
Baldwin Investment Management, LLC	5,370	$646K	0.08%	0	13F-HR Timeline
Green Ridge Wealth Planning LLC	5,370	$646K	0.34%	-135	13F-HR Timeline
Summa Corp.	5,360	$645K	0.27%	0	13F-HR Timeline
Woodward Financial Advisors, Inc.	5,455	$644K	0.25%	0	13F-HR Timeline
LECAP ASSET MANAGEMENT LTD	5,352	$644K	0.24%	new	13F-HR Timeline
Perennial Investment Advisors, LLC	5,336	$642K	0.05%	+675	13F-HR Timeline
Revolve Wealth Partners, LLC	5,333	$641K	0.08%	+369	13F-HR Timeline
Second Line Capital, LLC	5,874	$641K	0.12%	+224	13F-HR Timeline
Hummer Financial Advisory Services Inc	5,289	$641K	0.45%	+100	13F-HR Timeline
Clark Wealth Partners	5,289	$641K	0.43%	+491	13F-HR Timeline
RAHLFS CAPITAL, LLC	5,325	$641K	0.47%	0	13F-HR Timeline
ZEVIN ASSET MANAGEMENT LLC	5,318	$640K	0.09%	0	13F-HR Timeline
Garner Asset Management Corp	5,317	$640K	0.25%	-122	13F-HR Timeline
EASTERLY INVESTMENT PARTNERS LLC	5,300	$638K	0.05%	-57,493	13F-HR Timeline
Steadtrust LLC	5,297	$637K	0.36%	-74	13F-HR Timeline
First Bancorp, Inc /ME/	5,284	$636K	0.32%	0	13F-HR Timeline
SeaBridge Investment Advisors LLC	5,280	$635K	0.11%	0	13F-HR Timeline
Fielder Capital Group LLC	5,269	$634K	0.14%	-4,298	13F-HR Timeline
FLOYD FINANCIAL GROUP LLC	5,376	$634K	0.42%	+37	13F-HR Timeline
EJMK Ventures LLC	5,266	$633K	0.35%	-401	13F-HR Timeline
Members Trust Co	5,259	$633K	0.02%	-157	13F-HR Timeline
Mendel Capital Management LLC	5,234	$630K	0.32%		13F-HR Timeline
Rialto Wealth Management, LLC	5,225	$629K	0.14%	+47	13F-HR Timeline
CFO CAPITAL MANAGEMENT LLC	5,216	$627K	0.52%	-628	13F-HR Timeline
Core Wealth Advisors, Inc.	5,206	$626K	0.15%	+1,638	13F-HR Timeline
MIDLAND WEALTH ADVISORS, LLC	5,203	$626K	0.03%	-85	13F-HR Timeline
Arsenal Capital Advisors LLC	5,164	$626K	0.45%	+249	13F-HR Timeline
DEBUSSY CAPITAL MANAGEMENT LP	5,197	$625K	0.09%	+172	13F-HR Timeline
Corecam AG	5,196	$625K	0.56%	-112	13F-HR Timeline
Carr Financial Group Corp	5,190	$624K	0.16%	+58	13F-HR Timeline
Galvin, Gaustad & Stein, LLC	5,186	$624K	0.05%	+210	13F-HR Timeline
BETO FINANCIAL GROUP, LLC	5,547	$623K	0.36%	+10	13F-HR Timeline
Womack Financial LLC	5,176	$623K	0.46%	+207	13F-HR Timeline
Madson Wealth Advisors Inc	5,146	$619K	0.51%		13F-HR Timeline
Strategic Wealth Advisors LLC	5,138	$618K	0.5%	-517	13F-HR Timeline
Topsail Wealth Management, LLC	5,101	$618K	0.09%	0	13F-HR Timeline
SEVEN MILE ADVISORY	5,133	$617K	0.45%	-2,379	13F-HR Timeline
VICUS CAPITAL	5,132	$617K	0.05%	-20	13F-HR Timeline
Rosenberg Matthew Hamilton	5,130	$617K	0.13%	+247	13F-HR Timeline
Royal Palms Capital LLC	5,130	$617K	0.61%	new	13F-HR Timeline
BIP Wealth, LLC	5,129	$617K	0.03%	-17	13F-HR Timeline
Strathmore Capital Advisors, Inc.	5,513	$617K	0.17%	+66	13F-HR Timeline
BEACON INVESTMENT ADVISORS LLC	5,121	$616K	0.23%	+1	13F-HR Timeline
Successful Portfolios LLC	5,205	$616K	0.34%	-1,394	13F-HR Timeline
Werba Rubin Papier Wealth Management	5,117	$615K	0.09%	+1,524	13F-HR Timeline
Wealthspire Retirement, LLC	5,107	$614K	0.04%	-55	13F-HR Timeline
McLaughlin Asset Management, Inc.	5,103	$614K	0.59%	-138	13F-HR Timeline
Arcataur Capital Management LLC	5,090	$612K	0.17%	-10	13F-HR Timeline
Elyxium Wealth, LLC	5,090	$612K	0.2%	+850	13F-HR Timeline
Annex Advisory Services, LLC	5,087	$612K	0.01%	-165	13F-HR Timeline
LAKE STREET PRIVATE WEALTH, LLC	5,084	$612K	0.08%	-119	13F-HR Timeline
Financial Solutions Advisory Group, Inc.	5,069	$610K	0.08%		13F-HR Timeline
Blake Schutter Theil Wealth Advisors, L…	5,065	$609K	0.5%	+2	13F-HR Timeline
TSG Advice Partners, LLC	5,062	$609K	0.09%	+187	13F-HR Timeline
Congress Park Capital LLC	5,060	$609K	0.19%	-500	13F-HR Timeline
FourThought Financial Partners, LLC	5,057	$608K	0.05%	-116	13F-HR Timeline
Foster Group, Inc.	5,049	$607K	0.02%	+113	13F-HR Timeline
Braeburn Wealth Management LLC	5,046	$607K	0.35%	+87	13F-HR Timeline
Operose Advisors LLC	5,030	$605K	0.14%	+329	13F-HR Timeline
Pavaki Capital Management LLC	5,000	$601K	0.42%	0	13F-HR Timeline
Indiana Trust & Investment Management Co	4,996	$601K	0.19%	+37	13F-HR Timeline
Stenger Family Office, LLC	4,996	$601K	0.11%	-23	13F-HR Timeline
Element Wealth, LLC	4,977	$599K	0.25%	-64	13F-HR Timeline
INVESTMENT PARTNERS, LTD.	4,977	$599K	0.21%	-44	13F-HR Timeline
CORA CAPITAL ADVISORS LLC	4,970	$598K	0.2%	+96	13F-HR Timeline
SNOWWATER INVESTMENT PARTNERS, LLC	4,934	$598K	0.56%	0	13F-HR Timeline
Roehl & Yi Investment Advisors, LLC	4,963	$597K	0.22%	+422	13F-HR Timeline
Novak & Powell Financial Services, Inc.	4,960	$597K	0.32%	+86	13F-HR Timeline
S.A. Mason LLC	4,960	$597K	0.22%	+9	13F-HR Timeline
Accretive Wealth Partners, LLC	4,952	$596K	0.17%	+308	13F-HR Timeline
SIMON QUICK ADVISORS, LLC	4,946	$595K	0.03%	-1,517	13F-HR Timeline
BOS Asset Management, LLC	4,935	$594K	0.15%	+84	13F-HR Timeline
ABLE Financial Group, LLC	4,923	$592K	0.12%	-384	13F-HR Timeline
Mathes Company, Inc.	4,915	$591K	0.22%	-10	13F-HR Timeline
Range Advisory, LLC	4,913	$591K	0.11%	+1,839	13F-HR Timeline
SIGMA INVESTMENT COUNSELORS INC	4,908	$590K	0.03%	0	13F-HR Timeline
ORRSTOWN FINANCIAL SERVICES INC	4,904	$590K	0.1%	-287	13F-HR Timeline
Caliber Wealth Management, LLC / KS	4,902	$590K	0.06%	-1,376	13F-HR Timeline
Fairscale Capital, LLC	4,863	$589K	0.41%	0	13F-HR Timeline
Redwood Investment Management, LLCin group Redwood Investment Management…	4,896	$589K	0.07%	-5,967	13F-HR/A Timeline Group
Sather Financial Group Inc	4,895	$589K	0.04%	+324	13F-HR Timeline
Emprise Bank	4,893	$589K	0.24%	-243	13F-HR Timeline
Westmount Partners, LLC	4,890	$588K	0.14%	+319	13F-HR Timeline
SEEDS INVESTOR LLC	4,900	$588K	0.08%	+1,718	13F-HR Timeline
MKT Advisors LLC	4,919	$587K	0.2%	-835	13F-HR Timeline
Affinity Capital Advisors, LLC	4,877	$587K	0.08%	+147	13F-HR Timeline
FORTRESS PRIVATE LEDGER, LLC	4,876	$587K	0.18%	+372	13F-HR Timeline
Harel Insurance Investments & Financial…in group Harel Insurance Investments &…	4,870	$586K	<0.01%	-1,680	13F-HR Timeline Group
MWA Asset Management	4,866	$585K	0.32%	0	13F-HR/A Timeline
Palumbo Wealth Management LLC	4,860	$585K	0.14%	+264	13F-HR Timeline
Accel Wealth Management	4,859	$584K	0.15%	-157	13F-HR Timeline
iSAM Funds (UK) Ltdin group iSAM Funds (UK) Ltd	4,853	$584K	0.29%	new	13F-HR Timeline Group
Sendero Wealth Management, LLC	4,841	$582K	0.06%	-2,004	13F-HR Timeline
CWC Advisors, LLC.	4,838	$582K	0.28%	-9	13F-HR Timeline
UNION SAVINGS BANK	4,833	$581K	0.25%	-405	13F-HR Timeline
360 Financial, Inc.	4,825	$580K	0.17%	+50	13F-HR Timeline
JMAC ENTERPRISES LLC	4,819	$580K	0.11%	-1,797	13F-HR Timeline
Phillips Wealth Planners LLC	5,198	$578K	0.44%	-1,164	13F-HR Timeline
Sovereign Financial Group, Inc.	4,808	$578K	0.1%	+139	13F-HR Timeline
Plan A Wealth LLC	4,808	$578K	0.28%	-67	13F-HR Timeline
Financial Enhancement Group LLC	4,854	$578K	0.07%	+44	13F-HR Timeline
Elefante Mark B	4,800	$577K	0.32%	0	13F-HR Timeline
Crown Wealth Group, LLC	4,792	$576K	0.17%	+133	13F-HR Timeline
Stonebrook Private Inc.	4,791	$576K	0.12%	+555	13F-HR Timeline
HOLLENCREST CAPITAL MANAGEMENT	4,777	$575K	0.02%	+253	13F-HR Timeline
Sound Income Strategies, LLC	4,745	$573K	0.03%	-627	13F-HR Timeline
SEAMOUNT FINANCIAL GROUP INC	4,766	$573K	0.26%	0	13F-HR Timeline
ACIMA PRIVATE WEALTH, LLC	4,764	$573K	0.18%	0	13F-HR Timeline
Campion Asset Management	4,761	$573K	0.39%	-39	13F-HR Timeline
Ullmann Wealth Partners Group, LLC	4,760	$573K	0.06%	+1,081	13F-HR Timeline
Jacobsen Capital Management	4,758	$572K	0.19%	+47	13F-HR Timeline
CAHILL FINANCIAL ADVISORS INC	4,753	$572K	0.06%	-27	13F-HR Timeline
Flatrock Wealth Partners LLC	4,703	$570K	0.26%	+95	13F-HR Timeline
Warwick Investment Management, Inc.	4,734	$569K	0.08%	-344	13F-HR Timeline
Financial Advisors Network, Inc.	4,731	$569K	0.08%	-24,917	13F-HR Timeline
Ninety One SA (Pty) Ltd	4,749	$569K	0.02%	-20,169	13F-HR Timeline
SUMMIT WEALTH & RETIREMENT PLANNING, IN…	4,726	$568K	0.14%	+265	13F-HR Timeline
Annandale Capital, LLC	4,725	$568K	0.09%	+22	13F-HR Timeline
Medallion Wealth Advisors, LLC	4,715	$567K	0.19%	+766	13F-HR Timeline
First Citizens Financial Corp	4,715	$567K	0.27%	+200	13F-HR Timeline
Cambridge Financial Group, LLC	4,713	$567K	0.19%	-1,009	13F-HR Timeline
BARRETT & COMPANY, INC.	4,696	$565K	0.19%	-468	13F-HR Timeline
Armbruster Capital Management, Inc.	4,692	$564K	0.09%	+400	13F-HR Timeline
SAWGRASS ASSET MANAGEMENT LLC	4,691	$564K	0.08%	-64	13F-HR Timeline
Cottage Street Advisors LLC	4,677	$563K	0.24%	+2	13F-HR Timeline
MOSAIC FAMILY WEALTH PARTNERS, LLC	4,676	$562K	0.06%	+859	13F-HR Timeline
Lumbard & Kellner, LLC	4,671	$562K	0.19%	0	13F-HR Timeline
Strata Wealth Advisors, LLC	4,671	$562K	0.15%	+25	13F-HR Timeline
DIVIDEND ASSETS CAPITAL, LLC	4,656	$560K	0.11%	-600	13F-HR Timeline
LUTS & GREENLEIGH GROUP, INC.	4,642	$558K	0.44%	+11	13F-HR Timeline
Cornerstone Capital, Inc.	4,623	$556K	0.06%	+66	13F-HR Timeline
Campbell Deegan Wealth Management, LLC	4,621	$556K	0.45%	-2,210	13F-HR Timeline
CEERA INVESTMENTS, LLC	4,619	$556K	0.24%	new	13F-HR Timeline
Syverson Strege & Co	4,618	$556K	0.13%	+476	13F-HR Timeline
CONNORS INVESTOR SERVICES INC	4,615	$555K	0.05%	0	13F-HR Timeline
Laurel Wealth Advisors LLC	4,984	$555K	0.05%	0	13F-HR Timeline
DRW Securities, LLC	4,666	$555K	0.03%	+1,472	13F-HR Timeline
HCR Wealth Advisors	4,609	$554K	0.06%	+53	13F-HR Timeline
Synergy Asset Management, LLCin group Synergy Asset Management, LLC	4,609	$554K	0.06%	+297	13F-HR Timeline Group
Centurion Wealth Management LLC	4,592	$552K	0.12%	-6	13F-HR Timeline
True North Advisors, LLC	4,585	$552K	0.06%	-8,629	13F-HR Timeline
Paulson Wealth Management Inc.	4,584	$551K	0.13%	-4,880	13F-HR Timeline
Physician Wealth Advisors, Inc.	4,578	$551K	0.08%	+195	13F-HR Timeline
Impact Partnership Wealth, LLC	4,578	$551K	0.07%	new	13F-HR Timeline
Sunburst Financial Group, LLC	4,564	$549K	0.11%	-13	13F-HR/A Timeline
Seascape Capital Management	4,564	$549K	0.16%	-19	13F-HR Timeline
FCA CORP /TX	4,559	$548K	0.15%	-526	13F-HR Timeline
UNITED BANK	4,553	$548K	0.07%	-22	13F-HR Timeline
Expressive Wealth LLC	4,817	$547K	0.52%	-132	13F-HR Timeline
Salvus Wealth Management, LLC	4,537	$546K	0.32%	+316	13F-HR Timeline
CARDIFF PARK ADVISORS, LLC	4,536	$546K	0.04%	-41	13F-HR Timeline
BARR E S & CO	4,536	$546K	0.03%	-5,050	13F-HR Timeline
DHJJ Financial Advisors, Ltd.	4,532	$545K	0.18%	0	13F-HR Timeline
Lakeridge Wealth Management LLC	4,531	$545K	0.23%	+116	13F-HR Timeline
O'Brien Greene & Co. Inc	4,530	$545K	0.15%	-138	13F-HR Timeline
FIDUCIARY FINANCIAL GROUP, LLC	4,530	$545K	0.07%	-2,852	13F-HR Timeline
Tower Wealth Partners, Inc.	4,524	$544K	0.3%	-2,291	13F-HR Timeline
CAPITAL CITY TRUST CO/FL	4,482	$539K	0.12%	+20	13F-HR Timeline
Providence First Trust Co	4,479	$539K	0.19%	new	13F-HR Timeline
Cranbrook Wealth Management, LLC	4,475	$538K	0.11%	0	13F-HR Timeline
Dupree Financial Group, LLC	4,458	$536K	0.22%	0	13F-HR Timeline
MANCHESTER FINANCIAL INC	4,456	$536K	0.1%	-67	13F-HR Timeline
Goldstone Financial Group, LLC	4,456	$536K	0.06%	+13	13F-HR Timeline
REGATTA CAPITAL GROUP, LLC	4,453	$536K	0.08%	+21	13F-HR Timeline
Princeton Global Asset Management LLC	4,452	$536K	0.09%	+6	13F-HR Timeline
Clarus Group, Inc.	4,451	$535K	0.19%	+12	13F-HR Timeline
Millennium Capital Advisors, LLC	4,450	$535K	0.33%	+100	13F-HR Timeline
Meramec Financial Planners, LLC	4,567	$535K	0.21%	-870	13F-HR Timeline
TRED AVON FAMILY WEALTH, LLC	4,444	$535K	0.18%	-236	13F-HR Timeline
INCEPTIONR LLC	4,442	$534K	0.13%	new	13F-HR Timeline
Fairvoy Private Wealth, LLC	4,442	$534K	0.13%	-29	13F-HR Timeline
Steigerwald, Gordon & Koch Inc.	4,437	$534K	0.05%	-125	13F-HR Timeline
Smith Thornton Advisors LLC	4,435	$534K	0.27%	0	13F-HR Timeline
SMITH SHELLNUT WILSON LLC /ADV	4,435	$533K	0.23%	+168	13F-HR Timeline
Falcon Wealth Planning	4,426	$533K	0.04%	+65	13F-HR Timeline
Mainsail Financial Group, LLC	4,416	$531K	0.22%	0	13F-HR Timeline
Sustainable Insight Capital Management,…	4,412	$531K	0.18%	new	13F-HR Timeline
Alliance Wealth Advisors, LLC /UT	4,408	$530K	0.11%	-14,740	13F-HR Timeline
PeakShares LLC	4,408	$530K	0.49%	-610	13F-HR Timeline
FLYNN ZITO CAPITAL MANAGEMENT, LLC	4,404	$530K	0.17%	+932	13F-HR Timeline
Palogic Value Management, L.P.	4,395	$529K	0.23%	0	13F-HR Timeline