[Form 4] McKesson Corporation Insider Trading Activity

Rhea-AI Filing Summary

Tyler Brian S., who is listed as Chief Executive Officer and a director of McKesson Corporation (MCK), reported a sale of 11,930 shares of McKesson common stock on 08/15/2025 at a price of $677.76 per share. After the reported transaction he beneficially owned 15,942 shares directly and 215.2803 shares indirectly through the McKesson Corporation 401(k) Retirement Savings Plan.

The filing indicates the sale was made pursuant to a previously adopted plan dated November 8, 2024 and the form was signed by an attorney-in-fact on 08/19/2025. The report includes the reporting persons address in Irving, Texas, and the document is a Section 16 Form 4 disclosure of changes in beneficial ownership.

Positive

• Sale explicitly disclosed as executed under a Rule 10b5-1(c) plan, indicating preplanned trading intent
• Form 4 provides clear post-transaction ownership amounts including direct (15,942 shares) and indirect (215.2803 shares) holdings
• Document signed by attorney-in-fact, showing formal compliance with filing requirements

Negative

• Insider disposition of 11,930 shares (reported sale), which reduces direct holdings
• Form 4 shows a significant-dollar transaction at $677.76 per share, which may be viewed negatively by some investors absent context

Insights

Corporate Governance Expert

TL;DR Routine insider sale reported under a Rule 10b5-1 plan, showing continued disclosure compliance.

The report documents an insider sale under an explicit 10b5-1 plan dated November 8, 2024, which typically signals preplanned disposition rather than opportunistic trading. The filing shows retained direct and indirect holdings, and the use of an attorney-in-fact for signature indicates procedural handling of Form 4 obligations. For governance review, the key points are the plan disclosure and the retained ownership levels; there is no indication of undisclosed related-party transactions or departures from standard Section 16 reporting in this filing.

Securities Analyst

TL;DR Material insider sale disclosed but executed under an established plan; impact is neutral absent additional context.

The filing reports the disposal of 11,930 shares at $677.76 per share on August 15, 2025, with resulting direct beneficial ownership of 15,942 shares and indirect ownership of 215.2803 shares via the companys 401(k) plan. Because the sale is identified as pursuant to a Rule 10b5-1(c) plan adopted November 8, 2024, this is consistent with prearranged selling activity. Without further information on historical holdings or additional transactions, this single Form 4 is a routine disclosure rather than a material change in company fundamentals.

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)
08/15/2025

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	08/15/2025		S		11,930(1)	D	$677.76	15,942	D
Common Stock								215.2803	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	08/19/2025
	** 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. report on the Form 4 for MCK?

The Form 4 reports a sale of 11,930 McKesson common shares on 08/15/2025 at $677.76 per share, with 15,942 shares beneficially owned directly after the sale and 215.2803 shares indirectly.

Was the sale executed under a prearranged trading plan for MCK insiders?

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

Does the Form 4 show indirect ownership for the reporting person?

Yes. The filing lists 215.2803 shares held indirectly through the McKesson Corporation 401(k) Retirement Savings Plan.

Who signed the Form 4 and when was it signed?

The Form 4 was signed by Sarah Ahmad Ali, Attorney-in-fact on 08/19/2025.

What roles does the reporting person hold at McKesson according to the filing?

The filing identifies the reporting person as both a Director and Officer with the title Chief Executive Officer.