mck-20260825
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of report (Date of earliest event reported): August 25, 2026
McKESSON CORPORATION
(Exact Name of Registrant as Specified in Charter)
| Delaware | 1-13252 | 94-3207296 | ||||||||||||
| (State or Other Jurisdiction of Incorporation) | (Commission File Number) | (I.R.S. Employer Identification No.) | ||||||||||||
6555 State Hwy 161
Irving, TX 75039
(Address of Principal Executive Offices, and Zip Code)
(972) 446-4800
Registrant’s Telephone Number, Including Area Code
Not Applicable
(Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
| ☐ | Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425) | ||||
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) | ||||
| ☐ | Pre-commencement communication pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) | ||||
| ☐ | Pre-commencement communication pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) | ||||
Securities registered pursuant to Section 12(b) of the Act:
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered | ||||||||||||
| Common stock, $0.01 par value | MCK | New York Stock Exchange | ||||||||||||
| 1.625% Notes due 2026 | MCK26 | New York Stock Exchange | ||||||||||||
| 3.125% Notes due 2029 | MCK29 | New York Stock Exchange | ||||||||||||
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 7.01 | Regulation FD Disclosure. | ||||
On August 25, 2026, McKesson Corporation discovered a cybersecurity incident affecting its information systems. An investigation of the incident is in its early stages. Information about the incident, including any updates, is available on the company’s website at www.mckesson.com/cybersecurity.
As of the date of this filing, the company has not determined that the incident is material or that the incident has had, or is reasonably likely to have, any material impact on the company, including its financial condition or results of operations.
Item 9.01 | Financial Statements and Exhibits. | ||||
(d) Exhibits.
| Exhibit No. | Description | |||||||
| 104 | Cover Page Interactive Data File - the cover page iXBRL tags are embedded within the Inline XBRL document | |||||||
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: August 28, 2026
| McKesson Corporation | ||||||||
| By: | /s/ Michele Lau | |||||||
| Michele Lau | ||||||||
Executive Vice President and | ||||||||
| Chief Legal Officer | ||||||||