| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GERSHWIND ERIK | Director | C/O MSC INDUSTRIAL DIRECT CO., INC., 515 BROADHOLLOW ROAD, MELVILLE | /s/ Erik Gershwind | 27 Jan 2026 | 0001200390 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | +12,647 | +21% | $0.000000 | 73,764 | 27 Jan 2026 | See footnotes | F1, F9, F13 |
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | -69,452 | -94% | $0.000000 | 4,222 | 27 Jan 2026 | See footnotes | F2, F9, F13 |
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | +12,020 | $0.000000 | 12,020 | 27 Jan 2026 | See footnotes | F3, F9, F13 | |
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | -69,452 | -20% | $0.000000 | 285,511 | 27 Jan 2026 | See footnotes | F4, F9, F11 |
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | +69,452 | $0.000000 | 69,452 | 27 Jan 2026 | See footnotes | F5, F9, F12 | |
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | -69,452 | -100% | $0.000000 | 0 | 27 Jan 2026 | See footnotes | F6, F9, F12 |
| transaction | MSM | Class A Common Stock, $0.001 par value | Gift | $0 | +69,452 | +4.4% | $0.000000 | 1,639,359 | 27 Jan 2026 | Direct | F7 |
| transaction | MSM | Class A Common Stock, $0.001 par value | Other | $0 | -69,452 | -100% | $0.000000 | 0 | 27 Jan 2026 | See footnotes | F8, F9, F14 |
| holding | MSM | Class A Common Stock, $0.001 par value | 44,513 | 23 Jan 2026 | See footnotes | F9, F10 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MSM | Restricted Stock Units (RSU) | Award | $0 | +1,603 | $0.000000 | 1,603 | 23 Jan 2026 | Class A Common Stock, $0.001 par value | 1,603 | Direct | F15, F16 |
| Id | Content |
|---|---|
| F1 | Acquisition of indirect beneficial ownership by the Reporting Person as a result of a distribution by a trust. |
| F2 | Disposition of indirect beneficial ownership as a result of distribution by a trust. |
| F3 | Acquisition of indirect beneficial ownership by the Reporting Person as a result of a distribution by a trust. |
| F4 | Disposition of indirect beneficial ownership as a result of distribution by a trust. |
| F5 | Acquisition of indirect beneficial ownership by the Reporting Person as a result of a distribution by a trust by to a trust of which the Reporting Person?s spouse is trustee. |
| F6 | Disposition of indirect beneficial ownership as a result of distribution by a trust of which the Reporting Person?s spouse is trustee. |
| F7 | Acquisition of direct beneficial ownership by the Reporting Person as a result of a gift from the Reporting Person?s spouse. |
| F8 | Disposition of indirect beneficial ownership as a result of distribution by a trust, of which the Reporting Person is a trustee. |
| F9 | The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest in such securities. |
| F10 | Represents shares held by Grantor Retained Annuity Trusts of which the Reporting Person is the sole annuitant and trustee. |
| F11 | Represents shares held by trusts over whose trustee the Reporting Person can exercise remove and replace powers. |
| F12 | Represents shares held by a trust of which the Reporting Person?s spouse is trustee. |
| F13 | Represents shares held by a trust of which the Reporting Person is a co-trustee and beneficiary. |
| F14 | Represents shares held by a Trust of which the Reporting Person is a trustee. Following completion of the transactions reported herein, the Reporting Person ceased to be the trustee of such trust. As a result, the amount shown in Column 8 of Table 1 is reported as zero. |
| F15 | Each RSU represents a contingent right to receive one share of Common Stock. |
| F16 | 1,603 RSUs were granted on January 23, 2026, and vest on January 23, 2027, provided that the Reporting Person continues to serve as a Non-executive Director through the applicable vesting date. The vested shares will be delivered to the Reporting Person upon vesting. |
The Reporting Person has ceased to be an officer of the Issuer, effective December 31, 2025.