As of March 23, 2026, the three largest insider holders of MCK are Britt J. Vitalone (Evp Cfo, 14.03K shares), Christine M Jacobs (Director, 7.55K shares), Marie L/Ca Knowles (Director, 7.55K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Britt J. Vitalone | Evp Cfo | 14,028 | 0 | 29 May, 2025 |
| Christine M Jacobs | 7,551 | 0 | 26 Jul, 2021 | |
| Marie L/Ca Knowles | 7,551 | 0 | 26 Jul, 2021 | |
| Nancy Avila | Evp, Cio Cto | 4,631 | 0 | 01 Jun, 2023 |
| Lori A. Schechter | Evp, Chief Legal Officer Gc | 0 | 4,178 | 12 Dec, 2022 |
| Brian S. Tyler | Chief Executive Officer | 4,012 | 0 | 25 Aug, 2025 |
| Sundeep G. Reddy | Svp Controller | 3,290 | 0 | 16 Jun, 2021 |
| Michele Lau | Evp And Chief Legal Officer | 3,247 | 0 | 04 Mar, 2026 |
| Leann B Smith | Evp Chief Hr Officer | 2,989 | 0 | 18 Feb, 2026 |
| Thomas L Rodgers | Evp, Chief Strategy Bdo | 2,268 | 0 | 06 Jan, 2026 |
| Donald R Knauss | 773 | 0 | 25 Jul, 2023 | |
| Donald R Knauss | 773 | 0 | 25 Jul, 2023 | |
| Dominic J Caruso | 650 | 0 | 31 Jul, 2025 | |
| Linda Provie Mantia | 483 | 0 | 25 Jul, 2023 | |
| Kathleen Wilson-Thompson | 301 | 0 | 31 Jul, 2025 | |
| Bradley E Lerman | 301 | 0 | 31 Jul, 2025 | |
| Maria Martinez | 301 | 0 | 23 Feb, 2026 | |
| Lori A. Schechter | Evp, Chief Legal Officer Gc | 186 | 0 | 01 Jun, 2023 |
| Kevin Emerson | Svp, Controller Cao | 0 | 0 | 03 Feb, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Michele Lau | Common Stock | D | 2,725 | $990.00 | 3,247 | D | S |
| 19 Feb, 2026 | Maria Martinez | Common Stock | D | 349 | $939.87 | 301 | D | S |
| 17 Feb, 2026 | Leann B Smith | Common Stock | D | 190 | $945.00 | 2,989 | D | S |
| 11 Feb, 2026 | Michele Lau | Common Stock | D | 303 | $933.39 | 5,972 | D | S |
| 10 Feb, 2026 | Leann B Smith | Common Stock | A | 508 | $0.00 | 3,308 | D | M |
| 10 Feb, 2026 | Leann B Smith | Common Stock | D | 129 | $935.21 | 3,179 | D | F |
| 10 Feb, 2026 | Leann B Smith | Restricted Stock Units (RSUs) | D | 508 | $0.00 | 0 | D | M |
| 09 Feb, 2026 | Michele Lau | Common Stock | A | 3,990 | $0.00 | 7,237 | D | M |
| 09 Feb, 2026 | Michele Lau | Common Stock | D | 1,421 | $962.32 | 5,816 | D | F |
| 09 Feb, 2026 | Michele Lau | Common Stock | A | 758 | $0.00 | 6,574 | D | M |
| 09 Feb, 2026 | Michele Lau | Common Stock | D | 299 | $962.32 | 6,275 | D | F |
| 09 Feb, 2026 | Michele Lau | Restricted Stock Units (RSUs) | D | 3,990 | $0.00 | 0 | D | M |
| 09 Feb, 2026 | Michele Lau | Restricted Stock Units (RSUs) | D | 758 | $0.00 | 758 | D | M |
| 06 Feb, 2026 | Napoleon B Jr Rutledge | Common Stock | D | 328 | $955.00 | 0 | D | S |
| 05 Jan, 2026 | Thomas L Rodgers | Common Stock | D | 276 | $816.18 | 2,268 | D | S |
| 07 Nov, 2025 | Napoleon B Jr Rutledge | Common Stock | D | 329 | $861.63 | 328 | D | S |
| 22 Aug, 2025 | Brian S. Tyler | Common Stock | D | 11,930 | $705.63 | 4,012 | D | S |
| 15 Aug, 2025 | Brian S. Tyler | Common Stock | D | 11,930 | $677.76 | 15,942 | D | S |
| 08 Aug, 2025 | Napoleon B Jr Rutledge | Common Stock | D | 329 | $663.67 | 657 | D | S |
| 30 Jul, 2025 | Maria Martinez | Common Stock | A | 301 | $0.00 | 650 | D | A |