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): May 22, 2019

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

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 5.03 Amendment to Articles of Incorporation or Bylaws; Change in Fiscal Year.

On May 22, 2019, the Board of Directors of McKesson Corporation (“Company”) approved amendments to the Company’s By-Laws, effective May 22, 2019. Article II section 3(b) of the By-Laws was amended to reduce from 25% to 15% the percentage Net Long Beneficial Ownership of the Company’s outstanding common stock that is required to call a special meeting of the Company’s stockholders. Article III was amended to correct cross-references to section 13 of that Article.

The foregoing description is subject to and qualified by the full text of the amended By-Laws filed as Exhibit 3.1 to this report.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
3.1	By-Laws of McKesson Corporation, as amended May 22, 2019

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: May 24, 2019

McKesson Corporation
By:	/s/ Lori A. Schechter
	Lori A. Schechter
	Executive Vice President, General Counsel
	and Chief Compliance Officer