Erik Gershwind - 05 Nov 2025 Form 4 Insider Report for MSC INDUSTRIAL DIRECT CO INC (MSM)

Role: Chief Executive Officer, Director
Signature: /s/ Erik Gershwind
Issuer symbol: MSM
Transactions as of: 05 Nov 2025
Net transactions value: -$245,713
Form type: 4
Filing time: 07 Nov 2025, 11:21:19 UTC
Previous filing: 05 Nov 2025
Next filing: 27 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
GERSHWIND ERIK	Chief Executive Officer, Director	C/O MSC INDUSTRIAL DIRECT CO., INC., 515 BROADHOLLOW ROAD, MELVILLE	/s/ Erik Gershwind	07 Nov 2025	0001200390

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MSM	Class A Common Stock, $0.001 par value	Options Exercise	$0	+4,782	+0.31%	$0.000000	1,571,971	05 Nov 2025	Direct	F1
transaction	MSM	Class A Common Stock, $0.001 par value	Options Exercise	$0	+771	+0.05%	$0.000000	1,572,742	05 Nov 2025	Direct	F2
transaction	MSM	Class A Common Stock, $0.001 par value	Tax liability	$245,713	-2,835	-0.18%	$86.68	1,569,907	05 Nov 2025	Direct	F3
holding	MSM	Class A Common Stock, $0.001 par value						44,513	05 Nov 2025	See footnotes	F4, F5
holding	MSM	Class A Common Stock, $0.001 par value						354,963	05 Nov 2025	See footnotes	F4, F6
holding	MSM	Class A Common Stock, $0.001 par value						61,027	05 Nov 2025	See footnotes	F4, F7
holding	MSM	Class A Common Stock, $0.001 par value						102,435	05 Nov 2025	See footnotes	F4, F8

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MSM	Restricted Stock Units (RSU)	Options Exercise	$0	-4,782	-100%	$0.000000	0	05 Nov 2025	Class A Common Stock, $0.001 par value	4,782		Direct	F1, F9
transaction	MSM	Dividend Equivalent Units	Options Exercise	$0	-771	-28%	$0.000000	2,005	05 Nov 2025	Class A Common Stock, $0.001 par value	771		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each RSU represents a contingent right to receive one share of Common Stock.
F2	The dividend equivalent units accrued with respect to outstanding awards of restricted stock units (RSUs) and vest at the same time(s) as the underlying RSUs. Each dividend equivalent unit represents a contingent right to receive one share of Common Stock.
F3	Disposition of Class A Common Stock to the Issuer to cover tax withholding obligations arising from the vesting of RSUs and DEUs.
F4	The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein.
F5	Represents shares held by Grantor Retained Annuity Trusts of which the Reporting Person is the sole annuitant and trustee.
F6	Represents shares held by trusts over whose trustee the Reporting Person can exercise remove and replace powers.
F7	Represents shares held by a trust of which the Reporting Person is a co-trustee and beneficiary.
F8	Represents shares held by a Trust of which the Reporting Person is a trustee.
F9	19,126 RSUs were granted on November 5, 2021. 4,781 RSUs vested on each of November 5, 2022 and November 5, 2023, and 4,782 RSUs vested on each of November 5, 2024 and November 5, 2025.