[Form 4] MSC INDUSTRIAL DIRECT CO INC Insider Trading Activity

Rhea-AI Filing Summary

MSC Industrial (MSM) reported insider equity activity for its VP, Chief People Officer on 11/04/2025. The filing shows RSU vesting and related share movements: 106 and 108 shares of Class A common stock were acquired at $0 upon RSU vesting, alongside dividend equivalent units of 12.637 and 4.527 shares. To cover tax withholding from these vestings, the insider disposed of 34.637 and 32.527 shares at $86.42 per share. Following the transactions, direct beneficial ownership stood at 1,365 Class A shares.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Rockett Julie Valsa

(Last) (First) (Middle)

C/O MSC INDUSTRIAL DIRECT CO., INC.

515 BROADHOLLOW ROAD

(Street)

MELVILLE NY 11747

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MSC INDUSTRIAL DIRECT CO INC [ MSM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Chief People Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock, $0.001 par value	11/04/2025		M		106	A	$0(1)	1,307	D
Class A Common Stock, $0.001 par value	11/04/2025		M		12.637	A	$0(2)	1,320	D
Class A Common Stock, $0.001 par value	11/04/2025		F		34.637(3)	D	$86.42	1,285	D
Class A Common Stock, $0.001 par value	11/04/2025		M		108	A	$0(1)	1,393	D
Class A Common Stock, $0.001 par value	11/04/2025		M		4.527	A	$0(2)	1,398	D
Class A Common Stock, $0.001 par value	11/04/2025		F		32.527(3)	D	$86.42	1,365	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units (RSU)	(1)	11/04/2025		M			106	(4)	(4)	Class A Common Stock, $0.001 par value	106	$0	106	D
Dividend Equivalent Units	(2)	11/04/2025		M			12.637	(2)	(2)	Class A Common Stock, $0.001 par value	12.637	$0	64	D
Restricted Stock Units (RSU)	(1)	11/04/2025		M			108	(5)	(5)	Class A Common Stock, $0.001 par value	108	$0	326	D
Dividend Equivalent Units	(2)	11/04/2025		M			4.527	(2)	(2)	Class A Common Stock, $0.001 par value	4.527	$0	59	D

Explanation of Responses:

1. Each RSU represents a contingent right to receive one share of Common Stock.

2. 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.

3. Disposition of Class A Common Stock to the Issuer to cover tax withholding obligations arising from the vesting of RSUs and DEUs.

4. 423 RSUs were granted on November 4, 2022. 105 RSUs vested on November 4, 2023 and 106 RSUs vested on each of November 4, 2024 and November 4, 2025. 106 RSUs vest on November 4, 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.

5. 434 RSUs were granted on November 4, 2024. 108 RSUs vested on November 4, 2025. 108 RSUs vest on November 4, 2026, and 109 RSUs vest on each of November 4, 2027 and November 4, 2028, 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.

Remarks:

	/s/ Julie Rockett	11/06/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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