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MSM · Additional Proxy Materials (DEFA14A) · Filed December 23, 2025

Msc Industrial Direct Co Inc — Additional Proxy Materials (DEFA14A)

Form
DEFA14A
Filed
December 23, 2025
Ticker
MSM
Accession
0001003078-25-000189
Boardroom Alpha · Filing insights

MSC Industrial fixes Proposal 4 voting: majority of votes cast; abstentions and broker non-votes excluded; instruct brokers to count.

About Msc Industrial Direct Co Inc
Market cap
$6.4B
1Y TSR
+34.9%
3Y TSR
+7.9%
Board grade
C
Sector
Industrials
CEO
Martina McIsaac
Last annual meeting: Jan 21, 2026 · View full Msc Industrial Direct Co Inc profile →
Document


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

SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934
__________________________

Filed by the Registrant                                  ý
Filed by a Party other than the Registrant    ¨

Check the appropriate box:
oPreliminary Proxy Statement
oConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
oDefinitive Proxy Statement
ýDefinitive Additional Materials
oSoliciting Material Pursuant to §240.14a-12

MSC INDUSTRIAL DIRECT CO., INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):
ý
No fee required
¨
Fee paid previously with preliminary materials
¨
Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11






































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MSC INDUSTRIAL DIRECT CO., INC.
DECEMBER 23, 2025
SUPPLEMENT TO THE PROXY STATEMENT
FOR THE ANNUAL MEETING OF SHAREHOLDERS
TO BE HELD ON JANUARY 21, 2026



Explanatory Note

This supplement (this “Supplement”) to the definitive proxy statement filed by MSC Industrial Direct Co., Inc. (the “Company”) with the Securities and Exchange Commission on December 11, 2025 (the “Proxy Statement”) relating to the Company’s 2026 Annual Meeting of Shareholders to be held at 9:00 AM, Eastern Time, on Wednesday, January 21, 2026 (the “Annual Meeting”) is being filed solely to correct an inadvertent error with respect to the description of the voting standard for Proposal 4 – Approval of Amendment No. 1 to Our Amended and Restated Associate Stock Purchase Plan (“Proposal 4”).

Except as specifically supplemented by the information contained below, all information set forth in the Proxy Statement remains unchanged.

The second paragraph under the heading “Approval of Amendment No. 1 to Amended and Restated Associate Stock Purchase Plan (Proposal 4)” on page 64 of the Proxy Statement, which states the voting standard applicable to Proposal 4, is revised to read as follows:

Approval of Amendment No. 1 will require the affirmative vote of at least a majority of the votes cast in person or by proxy at the Annual Meeting, assuming the presence of a quorum. Abstentions and broker non-votes are not counted for any purpose in determining whether this proposal has been approved. As further discussed in the section titled “What is a broker non-vote” on page 72 of this Proxy Statement, if you own shares through a bank, broker or other holder of record, you must instruct your bank, broker or other holder of record how to vote in order for them to vote your shares so that your vote can be counted on this proposal.

The Company urges you to read the Proxy Statement and this Supplement in their entirety. This Supplement does not change the proposals to be acted upon at the Annual Meeting, which are described in the Proxy Statement. If you have already voted your shares or submitted your proxy, you do not need to take any action unless you wish to change your vote.

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More filings

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Reference

Frequently asked questions

When did Msc Industrial Direct Co Inc file this DEFA14A?
Msc Industrial Direct Co Inc (MSM) filed this Additional Proxy Materials (DEFA14A) with the SEC on December 23, 2025. The accession number assigned by EDGAR is 0001003078-25-000189.
What does a DEFA14A disclose?
DEFA14A is additional definitive proxy soliciting material filed in connection with a shareholder meeting — supplemental letters, slides, or amendments issued after the main proxy statement.
What is the key takeaway from this filing?
MSC Industrial fixes Proposal 4 voting: majority of votes cast; abstentions and broker non-votes excluded; instruct brokers to count. This is Boardroom Alpha's one-line summary of the additional proxy materials; see the full filing text above for the formal disclosure.
Where can I find Msc Industrial Direct Co Inc's prior proxy statements on EDGAR?
The SEC EDGAR browser lists every DEFA14A Msc Industrial Direct Co Inc has filed under CIK 1003078, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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