McK (NYSE: MCK) Form 144 shows Brian S. Tyler plans to sell shares

Rhea-AI Filing Summary

McK filed a Form 144 reporting proposed sales of Common Stock tied to recent restricted stock vesting. The filing lists a restricted stock vesting date of 05/19/2026 and shows sale notifications with share counts and dollar amounts on 06/09/2026 and 06/17/2026.

The filing identifies Brian S. Tyler with two reported transactions: 4,929 shares on 06/09/2026 and 8,463 shares on 06/17/2026, with the document listing corresponding amounts of $3,760,827.00 and $6,559,925.19. A brokerage entry for Fidelity Brokerage Services LLC is also shown.

Key Figures

Restricted stock vesting date: 05/19/2026 Shares reported — 06/09/2026: 4,929 shares Amount listed — 06/09/2026: $3,760,827.00 +3 more

6 metrics

Restricted stock vesting date 05/19/2026 Listed as the vesting event tied to the securities

Shares reported — 06/09/2026 4,929 shares Sale notification associated with Brian S. Tyler on 06/09/2026

Amount listed — 06/09/2026 $3,760,827.00 Dollar figure shown with the 4,929-share entry

Shares reported — 06/17/2026 8,463 shares Sale notification associated with Brian S. Tyler on 06/17/2026

Amount listed — 06/17/2026 $6,559,925.19 Dollar figure shown with the 8,463-share entry

Brokerage reference Fidelity Brokerage Services LLC Broker/dealer listed in securities information

Key Terms

Form 144, Restricted Stock Vesting, Issuer, Securities To Be Sold

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Common | 05/19/2026 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Issuer regulatory

"Restricted Stock Vesting | Issuer"

Securities To Be Sold regulatory

"144: Securities To Be Sold"

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Available on EDGAR 07/07/2026 - 09:46 AM Accepted by SEC EDGAR 07/07/2026 - 09:46 AM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	8463	6715898.28	120204051	07/07/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/19/2026	Restricted Stock Vesting	Issuer			8463	05/19/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Brian S. Tyler 6555 State Hwy 161 Irving TX 75039	Common	06/09/2026	4929	3760827.00
Brian S. Tyler 6555 State Hwy 161 Irving TX 75039	Common	06/17/2026	8463	6559925.19

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does McK's Form 144 report about insider sales?

The Form 144 reports proposed sales of Common Stock following restricted stock vesting on 05/19/2026. The filing lists planned sale notifications showing 4,929 shares and 8,463 shares on 06/09/2026 and 06/17/2026, respectively.

Who is the named seller on the MCK Form 144?

The filing names Brian S. Tyler as a reporting person associated with the sale notices. It also references Fidelity Brokerage Services LLC in the securities information section of the filing.

What share counts and amounts are shown in the filing for MCK?

The Form 144 shows a 4,929-share entry dated 06/09/2026 with $3,760,827.00 and an 8,463-share entry dated 06/17/2026 with $6,559,925.19 listed alongside those dates.

Is the Form 144 tied to restricted stock vesting for MCK?

Yes. The document lists a Restricted Stock Vesting event with an issuer reference dated 05/19/2026. The sale notices appear linked to that vesting date in the filing entries.

Does the filing state whether the company receives proceeds from these sales?

The excerpt lists dollar amounts next to the reported share entries but does not state the filing's cash‑flow treatment or who receives proceeds. The Form 144 lines show amounts tied to the reported shares.