MCK supply chain intelligence for McKesson Corporation: verified suppliers, customers, debt relationships, acquisitions, and ownership data.
Data compiled by Redley Lamar · ChainSifter Intelligence
McKesson Corporation (MCK) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.
McKesson sits inside pharmaceutical distribution, healthcare logistics, specialty drug, medical supply, and retail pharmacy networks. ChainSifter tracks verified McKesson supplier and customer relationships.
Use this MCK supply chain page to review healthcare distribution relationships, source evidence, and related supplier or customer chain pages.
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| CHRS | Coherus Oncology, Inc. | 95% | Reciprocal relationship from CHRS graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CHRS graph: revenue was generated in the United States. The Company’s net revenue was as … |
| ADCT | ADC Therapeutics SA | 92% | Reciprocal relationship from ADCT graph: Customers from which we derive more than 10% of our total product revenues for the three months ended March 31, 2026 and 2025 are as follows: Three Months End… |
| JAZZ | Jazz Pharmaceuticals plc | 92% | Reciprocal relationship from JAZZ graph: Reciprocal relationship from MCK graph: Reciprocal relationship from JAZZ graph: The following table presents a summary of the percentage of total revenues fr… |
| LLY | Eli Lilly and Company | 92% | Reciprocal relationship from LLY graph: Reciprocal relationship from MCK graph: Reciprocal relationship from LLY graph: Reciprocal relationship from MCK graph: Reciprocal relationship from LLY graph:… |
| AMPH | Amphastar Pharmaceuticals, Inc. | 90% | Reciprocal relationship from AMPH graph: Reciprocal relationship from MCK graph: Reciprocal relationship from AMPH graph: Reciprocal relationship from MCK graph: Reciprocal relationship from AMPH gra… |
| RIGL | Rigel Pharmaceuticals, Inc. | 90% | Reciprocal relationship from RIGL graph: Reciprocal relationship from MCK graph: Reciprocal relationship from RIGL graph: Reciprocal relationship from MCK graph: Reciprocal relationship from RIGL gra… |
| GILD | Gilead Sciences, Inc. | 85% | Reciprocal relationship from GILD graph: Reciprocal relationship from MCK graph: Reciprocal relationship from GILD graph: Reciprocal relationship from MCK graph: Reciprocal relationship from GILD gra… |
| MGNX | MacroGenics, Inc. | 85% | Reciprocal relationship from MGNX graph: rnment agencies of high credit standing. The Company's revenue relates to contract development and manufacturing services, agreements with various collaborato… |
| SCLX | Scilex Holding Company | 85% | Reciprocal relationship from SCLX graph: 5, LLC (“Cardinal Health 105”), ships them to temperature-controlled customer distribution centers, which are generally able to deliver finished product to re… |
| ARDX | Ardelyx, Inc. | 72% | Reciprocal relationship from ARDX graph: Reciprocal relationship from MCK graph: Reciprocal relationship from ARDX graph: Reciprocal relationship from MCK graph: Reciprocal relationship from ARDX gra… |
| CAH | Cardinal Health, Inc. | 72% | nternational, national, regional, and local full-line, short-line, and specialty distributors, service merchandisers, self-warehousing chain drug stores, manufacturers engaged in direct distribution,… |
| CAH | Cardinal Health, Inc. | 72% | Reciprocal relationship from CAH graph: Reciprocal relationship from MCK graph: nternational, national, regional, and local full-line, short-line, and specialty distributors, service merchandisers, s… |
| CLH | Clean Harbors, Inc. | 72% | Reciprocal relationship from CLH graph: will for impairment on an annual basis as of December 31 or at an interim date when it is more likely than not that events or changes in the business environme… |
| COR | Cencora, Inc. | 72% | Reciprocal relationship from COR graph: Reciprocal relationship from MCK graph: Reciprocal relationship from COR graph: sed to manage the majority of its transactional volume. The warehouse operating… |
| CRM | Salesforce, Inc. | 72% | Reciprocal relationship from CRM graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CRM graph: en & Katz, where he practiced law from September 2006 to July 2023. Mr. Niles r… |
| CTOR | Citius Oncology, Inc. | 72% | Reciprocal relationship from CTOR graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CTOR graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CTOR gra… |
| CTXR | Citius Pharmaceuticals, Inc. | 72% | Reciprocal relationship from CTXR graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CTXR graph: adds the risk of import restrictions, and adds the risk of political and envi… |
| CVS | CVS Health Corporation | 72% | venues and approximately % of total trade accounts receivable at March 31, 2025. Sales to the Company’s largest customer, CVS Health Corporation (“CVS”), accounted for approximately % of its total co… |
| CVS | CVS Health Corporation | 72% | Reciprocal relationship from CVS graph: Reciprocal relationship from MCK graph: venues and approximately % of total trade accounts receivable at March 31, 2025. Sales to the Company’s largest custome… |
| EMMA | Emmaus Life Sciences, Inc. | 72% | Reciprocal relationship from EMMA graph: Reciprocal relationship from MCK graph: Reciprocal relationship from EMMA graph: Reciprocal relationship from MCK graph: Reciprocal relationship from EMMA gra… |
| FMCQF | FMCQF | 72% | Reciprocal relationship from FMCQF graph: em 2020+.” The Compensation System 2020+ and the compensation awarded or due in the Fiscal Year are in each case in accordance with the relevant recommendati… |
| GRDN | Guardian Pharmacy Services, Inc. | 72% | Reciprocal relationship from GRDN graph: Reciprocal relationship from MCK graph: Reciprocal relationship from GRDN graph: Reciprocal relationship from MCK graph: Reciprocal relationship from GRDN gra… |
| HALO | Halozyme Therapeutics, Inc. | 72% | Reciprocal relationship from HALO graph: Reciprocal relationship from MCK graph: Reciprocal relationship from HALO graph: Contents Sales, Marketing and Distribution We have two teams of sales special… |
| HLN | Haleon plc | 72% | Reciprocal relationship from HLN graph: long term, related to climate change and our impacts and dependencies on nature, including water and healthy soils. The unpredictable nature of these risks pre… |
| HROW | Harrow, Inc. | 72% | Reciprocal relationship from HROW graph: Reciprocal relationship from MCK graph: Reciprocal relationship from HROW graph: uct relative to alternative products, the availability of third-party reimbur… |
| HSIC | Henry Schein, Inc. | 72% | Reciprocal relationship from HSIC graph: Reciprocal relationship from MCK graph: Reciprocal relationship from HSIC graph: s, as well as several manufacturers, of dental and medical products, primaril… |
| LOW | Lowe's Companies, Inc. | 72% | Reciprocal relationship from LOW graph: e Home Depot, Inc. (a home improvement retailer), 2010 – 2012; Vice President, Merchandising, The Home Depot, Inc., 2006 – 2010. Janice M. Dupré 61 Executive V… |
| MRK | Merck & Co., Inc. | 72% | Reciprocal relationship from MRK graph: . Includes cumulative translation adjustments. Amount in 2025 includes the reversal of $ million for a Zerbaxa (ceftolozane and tazobactam) sales-based milesto… |
| REGN | Regeneron Pharmaceuticals, Inc. | 72% | Reciprocal relationship from REGN graph: Reciprocal relationship from MCK graph: Reciprocal relationship from REGN graph: Item 1A. "Risk Factors - Risks Related to Manufacturing and Supply" for furth… |
| SUPN | Supernus Pharmaceuticals, Inc. | 72% | Reciprocal relationship from SUPN graph: could be harmed. The majority of our product sales are to pharmaceutical wholesalers, specialty pharmacies, and distributors who, in turn, sell our products t… |
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| CVS | CVS Health Corporation | 95% | venues and approximately % of total trade accounts receivable at March 31, 2025. Sales to the Company’s largest customer, CVS Health Corporation (“CVS”), accounted for approximately % of its total co… |
| CVS | CVS Health Corporation | 95% | Reciprocal relationship from CVS graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CVS graph: Reciprocal relationship from MCK graph: Sales to our largest customer, CVS Heal… |
| USGOV-DEPARTMENT-OF-VETERANS-AFFAIRS | USGOV-DEPARTMENT-OF-VETERANS-AFFAIRS | 95% | USAspending awards from Department of Veterans Affairs: $11,444,651,336 across 10 awards. 36C24026K1002 EXPRESS REPORT: PHARMACEUTICAL PRIME VENDOR (PPV)FY2026 NOVEMBER; 36C24026K1001 EXPRESS REPORT:… |
| CVS-HEALTH-CORPORATION | CVS-HEALTH-CORPORATION | 92% | Sales to our largest customer, CVS Health Corporation ("CVS"), accounted for approximately 24% of our total consolidated revenues in fiscal 2026. |
| GRDN | Guardian Pharmacy Services, Inc. | 92% | Reciprocal relationship from GRDN graph: Our primary wholesale distributor relationships currently include Cardinal Health, Inc., McKesson Corporation, Smith Drug Company, and Morris and Dickson Co. … |
| GROUP-PURCHASING-ORGANIZATIONS | GROUP-PURCHASING-ORGANIZATIONS | 90% | During fiscal 2026, sales to our ten largest customers, including group purchasing organizations ("GPOs") accounted for approximately 73% of our total consolidated revenues. |
| APO-PA | Apollo Global Management, Inc. | 85% | nnounced a definitive agreement under which funds managed by affiliates of Apollo Global Management, Inc. (“Apollo Funds”) will acquire approximately 13% minority ownership interest in our Medical‑Su… |
| APO-PA | Apollo Global Management, Inc. | 85% | Reciprocal relationship from APO-PA graph: Reciprocal relationship from MCK graph: Reciprocal relationship from APO-PA graph: Reciprocal relationship from MCK graph: nnounced a definitive agreement u… |
| AMPH | Amphastar Pharmaceuticals, Inc. | 72% | Reciprocal relationship from AMPH graph: Reciprocal relationship from MCK graph: Reciprocal relationship from AMPH graph: Reciprocal relationship from MCK graph: Reciprocal relationship from AMPH gra… |
| ARDX | Ardelyx, Inc. | 72% | Reciprocal relationship from ARDX graph: Reciprocal relationship from MCK graph: Reciprocal relationship from ARDX graph: Reciprocal relationship from MCK graph: Reciprocal relationship from ARDX gra… |
| CAH | Cardinal Health, Inc. | 72% | Reciprocal relationship from CAH graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CAH graph: Reciprocal relationship from MCK graph: nternational, national, regional, and l… |
| CAH | Cardinal Health, Inc. | 72% | nternational, national, regional, and local full-line, short-line, and specialty distributors, service merchandisers, self-warehousing chain drug stores, manufacturers engaged in direct distribution,… |
| CHRS | Coherus Oncology, Inc. | 72% | Reciprocal relationship from CHRS graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CHRS graph: Reciprocal relationship from MCK graph: Reciprocal relationship from CHRS gra… |
| COR | Cencora, Inc. | 72% | Reciprocal relationship from COR graph: . We will continue to invest in advanced information systems and automated warehouse technology. 4 U.S. Healthcare Solutions has made significant investments i… |
| CTOR | Citius Oncology, Inc. | 72% | Reciprocal relationship from CTOR graph: adds the risk of import restrictions, and adds the risk of political and environmental uncertainties that might affect those countries; ● Drug manufacturers a… |
| CTXR | Citius Pharmaceuticals, Inc. | 72% | Reciprocal relationship from CTXR graph: adds the risk of import restrictions, and adds the risk of political and environmental uncertainties that might affect those countries; ● Drug manufacturers a… |
| EMMA | Emmaus Life Sciences, Inc. | 72% | Reciprocal relationship from EMMA graph: in, dyspepsia, burning sensation, and hot flash. Commercialization and Distribution United States Until August 2024, Endari® was marketed and sold in the U.S.… |
| FMCQF | FMCQF | 72% | Reciprocal relationship from FMCQF graph: Reciprocal relationship from MCK graph: Reciprocal relationship from FMCQF graph: Reciprocal relationship from MCK graph: Reciprocal relationship from FMCQF … |
| GILD | Gilead Sciences, Inc. | 72% | Reciprocal relationship from GILD graph: erns of our non-retail customers. In light of the budget crises faced by many European countries, we have observed variations in purchasing patterns induced b… |
| HALO | Halozyme Therapeutics, Inc. | 72% | Reciprocal relationship from HALO graph: Contents Sales, Marketing and Distribution We have two teams of sales specialists, one that provide hospital and surgery center customers with the information… |
| HCA | HCA Healthcare, Inc. | 72% | liabilities assumed: Current assets $ Intangible assets Other non-current assets Current liabilities ( ) Total identifiable net assets Goodwill Net assets acquired $ SCRI Oncology, LLC On October 31,… |
| HCA | HCA Healthcare, Inc. | 72% | Reciprocal relationship from HCA graph: Reciprocal relationship from MCK graph: liabilities assumed: Current assets $ Intangible assets Other non-current assets Current liabilities ( ) Total identifi… |
| HROW | Harrow, Inc. | 72% | Reciprocal relationship from HROW graph: uct relative to alternative products, the availability of third-party reimbursement, the success of sales and marketing efforts, brand recognition and the ava… |
| HSIC | Henry Schein, Inc. | 72% | Reciprocal relationship from HSIC graph: s, as well as several manufacturers, of dental and medical products, primarily on the basis of price, breadth of product line, e-commerce capabilities, custom… |
| MRK | Merck & Co., Inc. | 72% | Reciprocal relationship from MRK graph: Reciprocal relationship from MCK graph: Reciprocal relationship from MRK graph: Reciprocal relationship from MCK graph: Reciprocal relationship from MRK graph:… |
| REGN | Regeneron Pharmaceuticals, Inc. | 72% | Reciprocal relationship from REGN graph: Reciprocal relationship from MCK graph: Reciprocal relationship from REGN graph: Reciprocal relationship from MCK graph: Reciprocal relationship from REGN gra… |
| SUPN | Supernus Pharmaceuticals, Inc. | 72% | Reciprocal relationship from SUPN graph: Reciprocal relationship from MCK graph: Reciprocal relationship from SUPN graph: could be harmed. The majority of our product sales are to pharmaceutical whol… |
| HEALTH-RESOURCES | HEALTH-RESOURCES | 62% | rtifications, when and if given, could be challenged, and that manufacturers may seek modifications to their service agreements. CMS waived the initial Q1 2026 reporting deadline that had been set fo… |
| PRISM-VISION-HOLDINGS-LLC | PRISM-VISION-HOLDINGS-LLC | 62% | y website referred to in this Annual Report on Form 10-K (“Annual Report”) is not incorporated by reference into this report, unless expressly noted otherwise. The SEC maintains a website that contai… |
| RITE-AID-CORPORATION | RITE-AID-CORPORATION | 62% | ancial Note 2, “Business Acquisitions and Divestitures,” to the consolidated financial statements included in this Annual Report; and 38 Table of Contents MD&A Index McKESSON CORPORATION FINANCIAL RE… |
| Instrument | Description | Confidence | Evidence |
|---|---|---|---|
| MCK-DEBT | Debt stack $7.3B | 90% | Market cache reports total debt of $7.3B. |
| MCK-DEBT-7294 | Xbrl Convertible | 90% | xbrl convertible detail from xbrl 2016-03-31. |
| Holder | Name | Confidence | Evidence |
|---|---|---|---|
| MCK-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC | VANGUARD CAPITAL MANAGEMENT LLC | 90% | 13F overlay lists VANGUARD CAPITAL MANAGEMENT LLC as top holder; 2034 tracked holders. |
| Ticker | Name | Chain Index | Hops | Relationship Types |
|---|---|---|---|---|
| CABA | Cabaletta Bio, Inc. | 100.00 | 2 | |
| UNLYF | Unilever PLC | 100.00 | 2 | |
| CVS | CVS Health Corporation | 100.00 | 1 | ['customer', 'supplier'] |
| ALNY | Alnylam Pharmaceuticals, Inc. | 100.00 | 2 | |
| CLX | The Clorox Company | 100.00 | 2 | |
| CAH | Cardinal Health, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| EDSA | Edesa Biotech, Inc. | 100.00 | 2 | |
| CHRS | Coherus Oncology, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| AMPH | Amphastar Pharmaceuticals, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| REGN | Regeneron Pharmaceuticals, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| DEO | Diageo plc | 100.00 | 2 | |
| EMMA | Emmaus Life Sciences, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| SDGR | Schrödinger, Inc. | 100.00 | 2 | |
| ADCT | ADC Therapeutics SA | 100.00 | 1 | ['supplier'] |
| CTXR | Citius Pharmaceuticals, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| AZN | AstraZeneca PLC | 100.00 | 2 | |
| AVIR | Atea Pharmaceuticals, Inc. | 100.00 | 2 | |
| COR | Cencora, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| DVLT | Datavault AI Inc. | 100.00 | 2 | |
| ADI | Analog Devices, Inc. | 100.00 | 2 |