Julie Valsa Rockett - 03 Nov 2025 Form 4 Insider Report for MSC INDUSTRIAL DIRECT CO INC (MSM)

Role: VP, Chief People Officer
Signature: /s/ Julie Rockett
Issuer symbol: MSM
Transactions as of: 03 Nov 2025
Net transactions value: -$2,383
Form type: 4
Filing time: 04 Nov 2025, 18:08:07 UTC
Previous filing: 16 Sep 2025
Next filing: 06 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Rockett Julie Valsa	VP, Chief People Officer	C/O MSC INDUSTRIAL DIRECT CO., INC., 515 BROADHOLLOW ROAD, MELVILLE	/s/ Julie Rockett	04 Nov 2025	0002086182

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	+89	+7.9%	$0.000000	1,222	03 Nov 2025	Direct	F1
transaction	MSM	Class A Common Stock, $0.001 par value	Options Exercise	$0	+7	+0.58%	$0.000000	1,229	03 Nov 2025	Direct	F2
transaction	MSM	Class A Common Stock, $0.001 par value	Tax liability	$2,383	-28	-2.3%	$84.79	1,201	03 Nov 2025	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)	Award	$0	+589		$0.000000	589	03 Nov 2025	Class A Common Stock, $0.001 par value	589		Direct	F1, F4
transaction	MSM	Restricted Stock Units (RSU)	Options Exercise	$0	-89	-33%	$0.000000	179	03 Nov 2025	Class A Common Stock, $0.001 par value	89		Direct	F1, F5
transaction	MSM	Dividend Equivalent Units	Options Exercise	$0	-7	-8.6%	$0.000000	76	03 Nov 2025	Class A Common Stock, $0.001 par value	7		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	589 RSUs were granted on November 3, 2025. 147 RSUs vest on each of November 3, 2026, November 3, 2027 and November 3, 2028, and 148 RSUs vest on November 3, 2029, 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	357 RSUs were granted on November 3, 2023. 89 RSUs vested on each of November 3, 2024 and November 3, 2025. 89 RSUs vest on November 3, 2026, and 90 RSUs vest on November 3, 2027, 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.