[Form 4] McKesson Corporation Insider Trading Activity

Rhea-AI Filing Summary

McKesson (MCK) insider sale reported. The filing shows Chief Executive Officer Tyler Brian S. sold 11,930 shares of McKesson common stock on 08/22/2025 at a reported price of $705.63 per share under a previously adopted 10b5-1 trading plan dated November 8, 2024. After the sale, the report states Mr. Tyler beneficially owned 4,012 shares directly and 215.2588 shares indirectly through the McKesson Corporation 401(k) Retirement Savings Plan. The sale was reported on a Form 4 signed by an attorney-in-fact on 08/25/2025.

Positive

• Sale executed under a 10b5-1(c) trading plan, indicating pre-planned and compliant execution
• Complete disclosure of direct and indirect holdings, including 401(k) plan interest

Negative

• Reduction in CEO's direct ownership from prior levels to 4,012 shares following the 11,930-share sale

Insights

Financial Analyst

TL;DR: Routine insider sale under a 10b5-1 plan; no new financial guidance or material corporate event disclosed.

The Form 4 documents a disposition of 11,930 McKesson shares by CEO Tyler Brian S. executed on 08/22/2025 at $705.63 per share under a plan dated 11/08/2024. This is a non-derivative, direct sale reducing the CEO's direct holdings to 4,012 shares, with a small indirect holding via the company 401(k). The filing contains no earnings, debt, acquisition, or governance changes. From a capital-markets perspective, this appears to be a planned liquidity event rather than a reactive sale tied to new company information, as noted by the 10b5-1 reference.

Corporate Governance Expert

TL;DR: Governance processes followed; sale executed through an existing Rule 10b5-1 plan and properly reported.

The report explicitly states the sale was pursuant to a previously adopted 10b5-1(c) trading plan dated November 8, 2024, indicating pre-planned execution consistent with insider trading compliance protocols. The Form 4 discloses direct and indirect ownership, and the signature by an attorney-in-fact is present with a reporting date of 08/25/2025. There are no disclosures of new governance issues or departures. Impact on investor perception should be limited given the compliance disclosure and absence of additional material events.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

TYLER BRIAN S.

(Last) (First) (Middle)

6555 STATE HWY 161

(Street)

IRVING TX 75039

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MCKESSON CORP [ MCK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/22/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/22/2025		S		11,930(1)	D	$705.63	4,012	D
Common Stock								215.2588	I	By the McKesson Corporation 401(k) Retirement Savings Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Sale pursuant to a previously adopted plan dated November 8, 2024, in compliance with Rule 10b5-1(c).

	/s/ Sarah Ahmad Ali, Attorney-in-fact	08/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Tyler Brian S. sell according to the MCK Form 4?

The filing reports a sale of 11,930 shares of McKesson common stock on 08/22/2025 at a price of $705.63 per share.

Was the McKesson insider sale part of a trading plan?

Yes. The sale was made pursuant to a previously adopted 10b5-1(c) trading plan dated November 8, 2024.

How many McKesson shares does the reporting person own after the sale?

After the transaction the report shows 4,012 shares directly and 215.2588 shares indirectly through the McKesson 401(k) Retirement Savings Plan.

When was the Form 4 signed and who signed it?

The Form 4 bears a signature by Sarah Ahmad Ali, attorney-in-fact dated 08/25/2025.

Does the Form 4 disclose any other material corporate events?

No. The filing contains only the disclosed sale and ownership details and does not report earnings, acquisitions, leadership changes, or other material events.