As of June 12, 2026, the three largest insider holders of MSM are Mitchell Jacobson (Director, 2.88Mn shares), Mitchell Jacobson (Director, 2.33Mn shares), Erik Gershwind (Chief Executive Officer, 1.64Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Mitchell Jacobson | - | 0 | 2,878,615 | 09 Apr, 2026 |
| Louise K Goeser | - | 13,802 | 0 | 28 Jan, 2025 |
| Steven Paladino | - | 1,568 | 13,960 | 05 Feb, 2026 |
| Stacey L. Bennett | - | 845,031 | 514,315 | 05 Oct, 2023 |
| Marjorie Gershwind | - | 18,268 | 883,058 | 05 Oct, 2023 |
| Erik Gershwind | Chief Executive Officer | 1,639,359 | 0 | 27 Jan, 2026 |
| Philip Peller | - | 9,537 | 0 | 17 Nov, 2025 |
| Douglas E Jones | Evp, Chief Supply Chain | 4,938 | 0 | 08 Feb, 2023 |
| Michael C Kaufmann | - | 15,551 | 0 | 26 Jan, 2026 |
| Kari D Heerdt | Svp, New Business Innovation | 16,192 | 0 | 10 Nov, 2021 |
| Gregory Polli | Svp, Product Management | 11,083 | 0 | 09 Nov, 2021 |
| Steven N Baruch | Evp, Strategy Marketing | 12,702 | 0 | 12 Aug, 2022 |
| Rudina Seseri | - | 6,090 | 0 | 02 Feb, 2026 |
| Robert B Aarnes | - | 823 | 0 | 26 Jan, 2026 |
| Gregory Haefele Clark | Vp Interim Cfo | 612 | 0 | 07 Nov, 2025 |
| Kristen Actis-Grande | Evp Chief Financial Officer | 12,645 | 0 | 08 Nov, 2024 |
| Elizabeth Bledsoe | Svp Chief People Officer | 8,846 | 0 | 08 Nov, 2024 |
| Neal Dongre | Svp, Gen Counsel Corp Sec | 4,380 | 0 | 07 Nov, 2025 |
| John Hill | Svp, Chief Digital Info Offr. | 2,297 | 0 | 19 Apr, 2024 |
| Kimberly Shacklett | Svp, Customer Experience | 16,006 | 0 | 07 Nov, 2025 |
| Martina Mcisaac | President Coo | 8,271 | 0 | 05 Nov, 2025 |
| Rahquel Purcell | - | 3,912 | 0 | 26 Jan, 2026 |
| Julie Valsa Rockett | Vp, Chief People Officer | 1,464 | 0 | 18 Dec, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 07 Apr, 2026 | Mitchell Jacobson | Class A Common Stock | D | 14,972 | $0.00 | 2,878,615 | I | G |
| 05 Feb, 2026 | Steven Paladino | Class A Common Stock, $0.001 par value | D | 13,960 | $0.00 | 1,568 | D | G |
| 05 Feb, 2026 | Steven Paladino | Class A Common Stock, $0.001 par value | A | 13,960 | $0.00 | 13,960 | I | G |
| 02 Feb, 2026 | Rudina Seseri | Class A Common Stock, $0.001 par value | D | 1,800 | $86.83 | 6,090 | D | S |
| 02 Feb, 2026 | Rudina Seseri | Class A Common Stock, $0.001 par value | D | 1,800 | $86.83 | 6,090 | D | S |
| 02 Feb, 2026 | Rudina Seseri | Class A Common Stock, $0.001 par value | D | 1,800 | $86.83 | 6,090 | D | S |
| 24 Jan, 2026 | Steven Paladino | Class A Common Stock, $0.001 par value | A | 695 | $0.00 | 15,478 | D | M |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | A | 12,647 | $0.00 | 73,764 | I | J |
| 23 Jan, 2026 | Mitchell Jacobson | Restricted Stock Units (RSU) | A | 1,603 | $0.00 | 1,603 | D | A |
| 24 Jan, 2026 | Steven Paladino | Class A Common Stock, $0.001 par value | A | 50 | $0.00 | 15,528 | D | M |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | D | 69,452 | $0.00 | 4,222 | I | J |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | A | 12,020 | $0.00 | 12,020 | I | J |
| 23 Jan, 2026 | Steven Paladino | Restricted Stock Units (RSU) | A | 1,603 | $0.00 | 1,603 | D | A |
| 24 Jan, 2026 | Steven Paladino | Restricted Stock Units (RSU) | D | 695 | $0.00 | 0 | D | M |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | D | 69,452 | $0.00 | 285,511 | I | J |
| 24 Jan, 2026 | Steven Paladino | Dividend Equivalent Units | D | 50 | $0.00 | 25 | D | M |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | A | 69,452 | $0.00 | 69,452 | I | J |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | D | 69,452 | $0.00 | 0 | I | J |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | A | 69,452 | $0.00 | 1,639,359 | D | G |
| 27 Jan, 2026 | Erik Gershwind | Class A Common Stock, $0.001 par value | D | 69,452 | $0.00 | 0 | I | J |