Martina McIsaac - Oct 3, 2023 Form 4 Insider Report for MSC INDUSTRIAL DIRECT CO INC (MSM)

Role: EVP, Chief Operating Officer
Signature: /s/ Martina McIsaac
Stock symbol: MSM
Transactions as of: Oct 3, 2023
Transactions value $: -$28,711
Form type: 4
Date filed: 10/4/2023, 04:26 PM
Previous filing: Nov 8, 2022
Next filing: Nov 7, 2023

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	+1.17K		$0.00	1.17K	Oct 3, 2023	Direct	F1
transaction	MSM	Class A Common Stock, $0.001 par value	Options Exercise	$0	+42.7	+3.64%	$0.00	1.22K	Oct 3, 2023	Direct	F2
transaction	MSM	Class A Common Stock, $0.001 par value	Tax liability	-$28.7K	-297	-24.41%	$96.76	919	Oct 3, 2023	Direct	F3

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	-1.17K	-25%	$0.00	3.52K	Oct 3, 2023	Class A Common Stock, $0.001 par value	1.17K		Direct	F1, F4
transaction	MSM	Dividend Equivalent Units	Options Exercise	$0	-42.7	-12.69%	$0.00	294	Oct 3, 2023	Class A Common Stock, $0.001 par value	42.7		Direct	F2, F5

* 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 ot 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	4,692 RSUs were granted on October 3, 2022. 1,173 RSUs vested on October 3, 2023. 1,173 RSUs vest on each of October 3, 2024, October 3, 2025 and October 3, 2026, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date. The vested shares will be delivered to the Reporting Person upon vesting.
F5	Includes 87.094 dividend equivalent units accrued on November 29, 2022, 91.238 dividend equivalent units accrued on January 24, 2023, 82.941 dividend equivalent units accrued on April 25, 2023, and 74.997 dividend equivalent units accrued on July 25, 2023 with respect to outstanding awards of restricted stock units (RSUs). Such dividend equivalent units vest at the same time(s) as the underlying RSUs and represent a contingent right to receive one share of Common Stock.