# EDGAR Filing Document

**Accession Number:** 0001003078
**File Stem:** 0001003078-25-000068
**Filing Date:** 2025-6
**Character Count:** 42075
**Document Hash:** e59790bd262d95232d9b257b2e916e04
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001003078-25-000068.hdr.sgml**: 20250626

**ACCESSION NUMBER**: 0001003078-25-000068

**CONFORMED SUBMISSION TYPE**: 11-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20241231

**FILED AS OF DATE**: 20250626

**DATE AS OF CHANGE**: 20250626

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MSC INDUSTRIAL DIRECT CO INC
- **CENTRAL INDEX KEY:** 0001003078
- **STANDARD INDUSTRIAL CLASSIFICATION:** WHOLESALE-INDUSTRIAL MACHINERY & EQUIPMENT [5084]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 113289165
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 0830

**FILING VALUES:**
- **FORM TYPE:** 11-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14130
- **FILM NUMBER:** 251079321

**BUSINESS ADDRESS:**
- **STREET 1:** 515 BROADHOLLOW ROAD
- **CITY:** MELVILLE
- **STATE:** NY
- **ZIP:** 11747
- **BUSINESS PHONE:** 516-812-2000

**MAIL ADDRESS:**
- **STREET 1:** 515 BROADHOLLOW ROAD
- **CITY:** MELVILLE
- **STATE:** NY
- **ZIP:** 11747

&nbsp;&nbsp;&nbsp;&nbsp;

<u><br></u>

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**________________________________**

**FORM 11-K**

**________________________________**

**(Mark One)**

⌧**ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the fiscal year ended December 31, 2024**

**OR**

□&nbsp;&nbsp;&nbsp;&nbsp;**TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from __________ to __________**

**Commission File Number: 1-14130**

**A. Full title of the plan and the address of the plan, if different from that of the issuer named below:**

**MSC Industrial Direct 401(k) Plan**

**B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:**

**MSC INDUSTRIAL DIRECT CO., INC.**

**515 Broadhollow Road, Suite 1000, Melville, New York 11747**

<u><br></u>

------

MSC INDUSTRIAL DIRECT 401(k) PLAN

INDEX TO FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULE

AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024

<u>Page</u>

---

| | |
|:---|:---|
| <u>[Report of Independent Registered Public Accounting Firm](#idd2e0ae5e70c44efa67daacd1afe8faf_7)</u> | [1](#idd2e0ae5e70c44efa67daacd1afe8faf_7) |
| Financial Statements |  |
| &nbsp;&nbsp;&nbsp;<u>[Statements of Net Assets Available for Benefits as of December 31,](#idd2e0ae5e70c44efa67daacd1afe8faf_10)2024[and](#idd2e0ae5e70c44efa67daacd1afe8faf_10)2023</u> | [2](#idd2e0ae5e70c44efa67daacd1afe8faf_10) |
| &nbsp;&nbsp;&nbsp;<u>[Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31,](#idd2e0ae5e70c44efa67daacd1afe8faf_13)2024</u> | [3](#idd2e0ae5e70c44efa67daacd1afe8faf_13) |
| <u>[Notes to Financial Statements](#idd2e0ae5e70c44efa67daacd1afe8faf_16)</u> | [4](#idd2e0ae5e70c44efa67daacd1afe8faf_16) |
| Supplemental Schedule |  |
| &nbsp;&nbsp;&nbsp;<u>[Form 5500, Schedule H, Line 4i: Schedule of Assets (Held At End of Year) as of December 31,](#idd2e0ae5e70c44efa67daacd1afe8faf_19)2024</u> | [11](#idd2e0ae5e70c44efa67daacd1afe8faf_19) |
| <u>[Exhibit Index](#idd2e0ae5e70c44efa67daacd1afe8faf_22)</u> | [12](#idd2e0ae5e70c44efa67daacd1afe8faf_22) |
| Exhibit 23.1 - Consent of Independent Registered Public Accounting Firm | Exhibit 23.1 - Consent of Independent Registered Public Accounting Firm |
| <u>[Signatures](#idd2e0ae5e70c44efa67daacd1afe8faf_25)</u> | [13](#idd2e0ae5e70c44efa67daacd1afe8faf_25) |

---

------

**REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

To the Plan Participants and the Plan Administrator of MSC Industrial Direct 401(k) Plan

**Opinion on the Financial Statements**

We have audited the accompanying statements of net assets available for benefits of MSC Industrial Direct 401(k) Plan (the Plan) as of December 31, 2024 and 2023, and the related statement of changes in net assets available for benefits for the year ended December 31, 2024, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan at December 31, 2024 and 2023, and the changes in its net assets available for benefits for the year ended December 31, 2024, in conformity with U.S. generally accepted accounting principles.

**Basis for Opinion**

These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Plan's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

**Supplemental Schedule Required by ERISA**

The accompanying supplemental schedule of assets (held at end of year) as of December 31, 2024 (referred to as the "supplemental schedule"), has been subjected to audit procedures performed in conjunction with the audit of the Plan's financial statements. The information in the supplemental schedule is the responsibility of the Plan's management. Our audit procedures included determining whether the information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental schedule. In forming our opinion on the information, we evaluated whether such information, including its form and content, is presented in conformity with the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the information is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ Ernst & Young LLP

We have served as the Plan's auditor since 2002.

Jericho, New York

June 26, 2025

------

PLAN NUMBER: 003

EIN: 11-3289165

**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS**

---

| | | |
|:---|:---|:---|
| | **December 31,** | **December 31,** |
| | **2024** | **2023** |
| **Assets** |  |  |
| Cash and cash equivalents | $8440 | $406 |
| Investments, at fair value: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mutual funds | 615420141 | 541775948 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common collective trusts | 67933158 | 69924252 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;MSC Industrial Direct Co., Inc. Common Stock | 12940222 | 16892098 |
| Total investments, at fair value | 696293521 | 628592298 |
| Receivables: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Employer contributions | 356721 | 371267 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Participant contributions | 179 | 638 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Notes receivable from participants | 12248408 | 10334277 |
| Total receivables | 12605308 | 10706182 |
| **Total assets** | 708907269 | 639298886 |
| **Liabilities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Excess contributions payable | 44284 | 180796 |
| **Total liabilities** | 44284 | 180796 |
| **Net assets available for benefits** | $708862985 | $639118090 |
| See accompanying notes to the financial statements. | See accompanying notes to the financial statements. | See accompanying notes to the financial statements. |

---

------

PLAN NUMBER: 003

EIN: 11-3289165

**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS**

---

| | |
|:---|:---|
| | **Year Ended**<br>**December 31, 2024** |
| **Additions** | |
| Additions to net assets attributed to: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net appreciation in fair value of investments | $62640924 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest and dividend income from investments | 28054821 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest income on notes receivable from participants | 863599 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contributions: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Participants | 31804510 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Employer, net of forfeitures | 9791317 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Rollovers | 5066048 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total contributions | 46661875 |
| Total additions | 138221219 |
| **Deductions** |  |
| Deductions from net assets attributed to: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Benefits paid to participants | 68152209 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Administration fees and other | 324115 |
| Total deductions | 68476324 |
| Net increase in net assets | 69744895 |
| Net assets available for benefits: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Beginning of year | 639118090 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;End of year | $708862985 |
| See accompanying notes to the financial statements. | See accompanying notes to the financial statements. |

---

------

**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

1.&nbsp;&nbsp;&nbsp;&nbsp; <u>DESCRIPTION OF PLAN</u>

The following description of the MSC Industrial Direct 401(k) Plan, as amended (the "Plan"), provides only general information. Participants should refer to the Plan document for a more complete description of the Plan's provisions.

<u>General</u>

The Plan is a defined contribution plan, sponsored by MSC Industrial Direct Co., Inc. (the "Company"), covering all "Employees" (as the term is defined in the Plan document), including Employees of participating subsidiaries, who meet certain age and service requirements of the Plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"). The Administrative Committee of the MSC Industrial Direct 401(k) Plan is responsible for the administration of the Plan (the "Plan Administrator"). T. Rowe Price Trust Company is the Plan trustee and T. Rowe Price Retirement Plan Services, Inc. is the recordkeeper for the Plan. The Plan year begins on January 1 and ends on December 31 (the "Plan year").

<u>Eligibility</u>

An Employee is eligible for participation in the Plan on the first day of the month following one full calendar month of service, or anytime thereafter, and must be at least 18 years of age. Both full-time and part-time Employees are eligible to join the Plan.

<u>Participation and Contributions</u>

The Plan is funded by employee and employer contributions. Participants may elect to make pre-tax or Roth after-tax ("Roth") contributions of between 1% and 40% of their "Annual Compensation" (as the term is defined in the Plan document). The maximum annual contribution a participant could make into the Plan, as established by the Internal Revenue Code of 1986, as amended (the "Code"), was $23,000 during 2024. In addition, the Plan permits catch-up contributions of $7,500 by participants who have attained age 50 by December 31 of each year. Participants may also roll over amounts representing distributions from other qualifying plans. Participants are immediately vested in their pre-tax, Roth and rollover contributions.

In June 2024, the Company acquired 100% of the outstanding shares of ApTex, Inc. ("ApTex") and acquired certain assets and assumed certain liabilities of Premier Tool Grinding, Inc. ("Premier"). In conjunction with these acquisitions, the ApTex Inc. Retirement Savings Plan and the Premier Tool Grinding 401(k) Plan (each an "Acquired Plan") were legally terminated and liquidated by the respective sellers, and all participants and beneficiaries of ApTex and Premier, respectively, became 100% vested with respect to their applicable Acquired Plan account balances. As part of each Acquired Plan termination, participants were given several options as to how their account balances could be disbursed, including the option to rollover each applicable Acquired Plan balance to the Plan. Such rollovers to the Plan occurred during the 2024 Plan year and are included within Rollovers on the Statement of Changes in Net Assets Available for Benefits for the year ending December 31, 2024. Further, the Plan was amended to provide certain former employees of ApTex and Premier, who were hired by the Company in connection with the acquisitions, with eligibility and vesting service credit for prior service with ApTex and Premier and their affiliates and predecessors.

Participants direct the investment of their contributions, employer discretionary matching contributions and employer discretionary profit sharing contributions into various investment options offered by the Plan. Participants may currently direct contributions into 25 mutual funds and two common collective trusts. Additionally, participants may direct contributions into the purchase of shares of the Company's Class A Common Stock ("Class A Common Stock").

The "Employer" (as the term is defined in the Plan document) may make a discretionary matching contribution to the Plan accounts of eligible participants. For the 2024 Plan year, the Employer made a discretionary matching contribution of 50% of the first 6% of a participant's pre-tax and Roth contributions. The Employer may also make a discretionary profit sharing contribution to the Plan accounts of eligible participants to be allocated in the same ratio as each eligible participant's compensation bears to the total of such compensation of all eligible participants. No discretionary profit sharing contributions were made in 2024. In general, participants must have completed 1,000 hours of service during a calendar year and be employed on the last day of the Plan year to be eligible to share in the allocation of any discretionary profit sharing contributions. Also, a participant must be employed on the last day of the Plan year to be eligible for any discretionary true-up of matching contributions at the end of the Plan year. The discretionary true-up of matching contributions occurs when a participant reaches the Code's maximum annual contribution limit before December 31, resulting in a difference between what the Employer contributed compared to the full Employer match for the Plan year.

------

**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

Active participants vest in annual Employer contributions as follows:

---

| | |
|:---|:---|
| **Completed Years of Service** | **Vested Percentage** |
| Less than 1 | 0 |
| 1 but less than 2 | 33 1/3 |
| 2 but less than 3 | 66 2/3 |
| 3 or more | 100 |

---

Upon a participant's attainment of age 65 while in service or termination of service due to death or becoming "Disabled" (as the term is defined in the Plan document) or a termination of the Plan, 100% vesting occurs.

<u>Participant Accounts</u>

Individual accounts are maintained for each participant in the Plan. Each participant's account is credited with the participant's contributions and allocations of (i) the Company's contributions, if any, and (ii) earnings and losses from applicable investment performance, and, if not paid by the Employer, administrative expenses. Pre-tax and Roth contributions are maintained separately for participants.

<u>Forfeitures</u>

Forfeited balances of terminated participants' non-vested employer contributions are used to pay administrative expenses of the Plan or to reduce future employer discretionary matching contributions and future employer discretionary profit sharing contributions. As of December 31, 2024 and 2023, the forfeiture balances not allocated to pay administrative expenses were $30,418 and $8,688, respectively. During the years ended December 31, 2024 and 2023, forfeited non-vested accounts of $206,917 and $144,850, respectively, were used to reduce employer discretionary matching contribution obligations.

<u>Notes Receivable from Participants</u>

The Plan has a loan provision which allows participants to borrow from the Plan. The minimum loan amount is $1,000, and the maximum loan amount is generally 50% of a participant's total vested account balance, not to exceed $50,000. Interest is charged at a rate established by the Plan and is normally fixed at origination at the prime rate plus 1% (effective rate of 8.50% as of December 31, 2024). Interest rates on outstanding loans as of December 31, 2024 and 2023 ranged from 4.25% to 9.50%. Interest paid by a participant on an outstanding loan is paid directly into the participant's account. Principal and interest is paid ratably through payroll deductions. The repayment period cannot exceed five years unless the loan is used to acquire a participant's principal residence, in which case the repayment period cannot exceed 10 years (except for certain of such loans that were rolled over into the Plan from another tax-qualified plan). A participant can have a maximum of two loans outstanding from the Plan at any given time.

<u>Withdrawals</u>

The Plan permits a participant to withdraw participant pre-tax, Roth, vested discretionary matching and vested discretionary profit sharing contributions to the extent necessary to satisfy the participant's "Hardship" (as the term is defined in the Plan document). In addition, the Plan permits participants who have attained age 59-1/2 to make in-service withdrawals from the Plan.

<u>Payment of Benefits</u>

At death, upon becoming Disabled, or at retirement or termination, participants (or their designated beneficiaries) are entitled to receive benefits equal to their vested account balances. In general, participants may elect to defer their distribution or to receive vested benefits in the form of a lump sum distribution, installment payments or a direct rollover to an Individual Retirement Account ("IRA") or an eligible retirement plan. However, if a participant's vested account balance is $5,000 or less, the participant may not defer distribution and may elect to receive a partial distribution, a lump sum distribution, or a direct rollover to an IRA or an eligible retirement Plan. If no such election is made and the participant's vested account balance is greater than $1,000, but not more than $5,000, the participant's vested account balance will be directly rolled over into an IRA established by the Plan Administrator for the participant's benefit. If the participant's vested account balance is $1,000 or less and no election is made, the benefit will be paid in a lump sum distribution.

<u>Plan Expenses</u>

Expenses for investment and other costs are generally paid by the Plan. Expenses for recordkeeping are deducted directly from the participant's account on a quarterly basis and are included in administration fees and other. Fees for annual independent audit, counsel, and other specialists are generally paid by the Company. Certain administrative functions are performed by officers or employees of the Company. No such officer or employee receives compensation from the Plan.

------

**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

2.&nbsp;&nbsp;&nbsp;&nbsp; <u>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</u>

<u>Basis of Accounting</u>

The accounting records and financial statements of the Plan are prepared on the accrual basis in accordance with accounting principles generally accepted in the United States.

<u>Use of Estimates</u>

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes and supplemental schedule. Actual results could differ from those estimates.

<u>Risks and Uncertainties</u>

The Plan investment options include various investment securities. Market values of investments may decline for a number of reasons, including changes in prevailing market conditions and interest rates, increases in defaults, and credit rating downgrades. Due to the level of risk associated with investment securities, it is at least reasonably possible that changes in the values of investment balances will occur in the near term and that such changes could materially affect participants' account balances and the amounts reported in the Statement of Net Assets Available for Benefits.

The Plan's exposure to a concentration of credit risk is limited by the diversification of investments across the participant-directed fund elections. Additionally, the investments with each participant-directed fund election are further diversified into varied financial instruments, with the exception of investments in shares of Class A Common Stock under the Plan. Investment decisions are made, and the resulting risks are borne, exclusively by the Plan participant who makes such decisions.

As of December 31, 2024 and 2023, approximately 2% and 3%, respectively, of the Plan's net assets available for benefits were invested in shares of Class A Common Stock (quoted market prices of $74.69 and $101.26 per share, respectively).

<u>Investment Valuation and Income Recognition</u>

The investments are stated at fair value as determined by quoted market prices on the last business day of the Plan year, except investment assets in common collective trusts, which are determined by the net asset value (the "NAV") based on the fair value of the underlying assets held in the fund.

Purchases and sales of investments are recorded on a trade-date basis. Interest income is recorded on an accrual basis. Dividend income is recorded on the ex-dividend date.

<u>Notes Receivable from Participants</u>

Notes receivable from participants are measured at their unpaid principal balance plus any accrued but unpaid interest. Delinquent participant loans are recorded as distributions based on the terms of the Plan document.

<u>Benefit Payments</u>

Benefits are recorded upon distribution. As of December 31, 2024 and 2023, there were $31,880 and $630, respectively, of unpaid distributions allocated to the accounts of participants who have elected to withdraw from the Plan.

<u>Excess Contributions Payable</u> 

Amounts payable to participants for contributions in excess of amounts allowed by the Internal Revenue Service (the "IRS") are recorded as a liability with a corresponding reduction to contributions. The Plan distributed the 2024 Plan year excess contributions to the applicable participants before March 15, 2025.

3.&nbsp;&nbsp;&nbsp;&nbsp; <u>FAIR VALUE MEASUREMENTS</u>

In accordance with accounting principles generally accepted in the United States, each of the Plan's fair value measurements is categorized into one of the following three levels based on the lowest level input that is significant to the fair value measurement in its entirety. The three levels are defined as follows:

*Level 1 –* Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Plan has the ability to access.

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**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

*Level 2 –* Inputs to the valuation methodology include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Quoted prices for similar assets or liabilities in active markets;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Quoted prices for identical or similar assets or liabilities in inactive markets;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Inputs other than quoted prices that are observable for the asset or liability; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

*Level 3 –* Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset's or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

The following is a description of the valuation methodologies used for each major class of assets measured at fair value.

*Mutual Funds*: Valued at the closing price reported on active markets as derived from the NAV of shares held by the Plan at year-end and are classified as Level 1 investments. There are no restrictions as to the redemption of these investments nor does the Plan have any contractual obligations to further invest in any of the individual mutual funds.

*Common Collective Trusts*: The common collective trust investments include the Stable Value Fund and the Equity Income Trust. Fair value for these investments is determined by the NAV based on the fair value of the underlying funds. The NAV, as provided by the Plan trustee, has a readily determinable fair value and has accordingly been classified as a Level 1 investment.

Certain events could limit the ability of the Plan to transact at contract value with a common collective trust. Such events include the following: (1) total or partial Plan termination; (2) changes to the Plan's prohibition on competing investment options; (3) mergers; (4) spin-offs; (5) lay-offs; (6) early retirement incentive programs; (7) sales or closings of all or part of a participating plan sponsor's operations; (8) bankruptcy; (9) receivership; or (10) the failure of the trust to qualify for exemption from federal income taxes or any required prohibited transaction exemption under ERISA. The Plan Administrator does not believe that the occurrence of any such event, which would limit the Plan's ability to transact at contract value with participants, is probable.

There are no imposed redemption restrictions nor does the Plan have any contractual obligations to further invest in any of the individual trusts.

*MSC Industrial Direct Co., Inc. Class A Common Stock*: Valued at the closing price of the Class A Common Stock reported on the New York Stock Exchange and is classified as a Level 1 investment.

The following tables set forth by level, within the fair value hierarchy, the Plan's assets at fair value as of December 31, 2024 and 2023:

---

| | | |
|:---|:---|:---|
| <u>Investments at Fair Value as of December 31, 2024</u> | <u>Investments at Fair Value as of December 31, 2024</u> | <u>Investments at Fair Value as of December 31, 2024</u> |
|  | Level 1 | Total |
| Mutual funds | $615420141 | $615420141 |
| Common collective trusts | 67933158 | 67933158 |
| MSC Industrial Direct Co., Inc. Class A Common Stock | 12940222 | 12940222 |
| Total Investments at Fair Value | $696293521 | $696293521 |

---

------

**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

---

| | | |
|:---|:---|:---|
| <u>Investments at Fair Value as of December 31, 2023</u> | <u>Investments at Fair Value as of December 31, 2023</u> | <u>Investments at Fair Value as of December 31, 2023</u> |
|  | Level 1 | Total |
| Mutual funds | $541775948 | $541775948 |
| Common collective trusts | 69924252 | 69924252 |
| MSC Industrial Direct Co., Inc. Class A Common Stock | 16892098 | 16892098 |
| Total Investments at Fair Value | $628592298 | $628592298 |

---

4.&nbsp;&nbsp;&nbsp;&nbsp; <u>INCOME TAX STATUS</u>

The Plan is maintained through the adoption of a pre-approved plan that has received an opinion letter from the IRS dated August 19, 2020, stating that the form of the plan is qualified under Section 401(a) of the Code and therefore, the related trust is tax-exempt. The Plan Administrator has determined that it is eligible to, and has chosen to, rely on the current IRS opinion letter with respect to qualified status of the Plan. Once qualified, the Plan is required to operate in conformity with the Code to maintain its qualified status. The Plan Administrator believes the Plan is being operated in compliance with the applicable requirements of the Code and, therefore, believes the Plan is qualified and the related trust is tax-exempt.

Accounting principles generally accepted in the United States require the Plan's management to evaluate tax positions taken by the Plan and to recognize a tax liability if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. Plan management has analyzed the tax positions taken by the Plan and has concluded that there are no uncertain positions taken or expected to be taken that more likely than not would not be sustained upon examination by the IRS. The Plan is subject to routine audits by the IRS; however, there are currently no audits for any tax periods in progress.

5.&nbsp;&nbsp;&nbsp;&nbsp; <u>RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS</u>

Certain Plan investments are shares of mutual funds and trusts managed by T. Rowe Price. T. Rowe Price is the trustee pursuant to the Plan and, therefore, these transactions qualify as permitted party-in-interest transactions. These investments represented $231,526,207, or 33% of total net assets available for Plan benefits at fair value as of December 31, 2024, and $216,492,223, or 34% of total net assets available for Plan benefits at fair value as of December 31, 2023.

Plan investments in shares of Class A Common Stock were $12,940,222, or 2% of total net assets available for Plan benefits at fair value as of December 31, 2024, and $16,892,098, or 3% of total net assets available for Plan benefits at fair value as of December 31, 2023.

T. Rowe Price provides certain administrative services to the Plan pursuant to a Master Plan Services Agreement between the Company and T. Rowe Price. T. Rowe Price receives revenue from mutual fund and collective trust service providers for services T. Rowe Price provides to the funds. The revenue received by T. Rowe Price from such mutual fund or collective trust service providers is remitted to the Plan's participants on a quarterly basis.

6.&nbsp;&nbsp;&nbsp;&nbsp; <u>PLAN TERMINATION</u>

Although it has not expressed any intention to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan, subject to the provisions of ERISA. In the event of Plan termination, participants will become 100% vested in their accounts.

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**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

7.&nbsp;&nbsp;&nbsp;&nbsp; <u>RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500</u>

The following is a reconciliation of net assets available for benefits per the financial statements to the Form 5500:

---

| | | |
|:---|:---|:---|
| | **December 31,** | **December 31,** |
| | **2024** | **2023** |
| Net assets available for benefits per the financial statements | $708862985 | $639118090 |
| Add: Excess contributions payable at end of year | 44284 | 180796 |
| Less: Amounts allocated to withdrawing participants at end of year | (31880) | (630) |
| Less: Deemed distributions - defaulted loans at end of year | (16512) | (10924) |
| Net assets available for benefits per the Form 5500 | $708858877 | $639287332 |

---

The following is a reconciliation of contributions received from participants per the financial statements to the Form 5500:

---

| | |
|:---|:---|
| | **December 31,**<br>**2024** |
| Contributions received from participants per the financial statements | $31804510 |
| Add: Excess contributions payable at end of year | 44284 |
| Contributions received from participants per the Form 5500 | $31848794 |

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The following is a reconciliation of benefits paid to participants per the financial statements to the Form 5500:

---

| | |
|:---|:---|
| | **December 31,**<br>**2024** |
| Benefits paid to participants per the financial statements | $68152209 |
| Less: Deemed distributions - defaulted loans at beginning of year | (10924) |
| Less: Amounts allocated to withdrawing participants at beginning of year | (630) |
| Add: Amounts allocated to withdrawing participants at end of year | 31880 |
| Benefits paid to participants per the Form 5500 | $68172535 |

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**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**AS OF DECEMBER 31, 2024 AND 2023 AND FOR THE YEAR ENDED DECEMBER 31, 2024**

The following is a reconciliation of the net increase in net assets available for benefits per the financial statements to the Form 5500:

---

| | |
|:---|:---|
| | **December 31,**<br>**2024** |
| Net increase in net assets available for benefits per the financial statements | $69744895 |
| Add: Excess contributions payable at end of year | 44284 |
| Add: Amounts allocated to withdrawing participants at beginning of year | 630 |
| Add: Deemed distributions - defaulted loans at beginning of year | 10924 |
| Less: Excess contributions payable at beginning of year | (180796) |
| Less: Amounts allocated to withdrawing participants at end of year | (31880) |
| Less: Deemed distributions - defaulted loans at end of year | (16512) |
| Net increase in net assets available for benefits per the Form 5500 | $69571545 |

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**MSC INDUSTRIAL DIRECT 401(k) PLAN**

**FORM 5500 — SCHEDULE H, LINE 4i: SCHEDULE OF ASSETS (HELD AT END OF YEAR)**

**AS OF DECEMBER 31, 2024**

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| | | | |
|:---|:---|:---|:---|
| **Identity of Issuer** | **Description** | **Cost** | **Current Value** |
| &nbsp;&nbsp;MSC Industrial Direct Co., Inc. \* | MSC Industrial Direct Co., Inc. Class A Common Stock (173,252 shares) | \*\* | $12940222 |
| &nbsp;&nbsp;Baird | Baird Core Plus Bond Fund (1,964,046 shares) | \*\* | 19660099 |
| &nbsp;&nbsp;Cohen & Steers | Cohen & Steers Realty Shares (101,670 units) | \*\* | 4871003 |
| &nbsp;&nbsp;Fidelity Investments | Fidelity Large Cap Growth Index Fund (2,431,718 units) | \*\* | 95250400 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Global Stock Fund (503,143 units) | \*\* | 31622558 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price New Horizons Fund (345,225 units) | \*\* | 19266981 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Communications & Technology Fund (285,360 units) | \*\* | 43999635 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Stable Value Common Trust Fund (47,387,992 units) | \*\* | 47387992 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Equity Income Trust Fund (521,981 units) | \*\* | 20545166 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Mid-Cap Value Fund (656,401 units) | \*\* | 20952315 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Value Fund (295,124 units) | \*\* | 13156633 |
| &nbsp;&nbsp;T. Rowe Price \* | T. Rowe Price Mid-Cap Growth Fund (346,577 units) | \*\* | 34564136 |
| &nbsp;&nbsp;T. Rowe Price \* | U.S. Treasury Money Fund (30,791 units) \*\*\* | \*\* | 30791 |
| &nbsp;&nbsp;Vanguard | Vanguard Small-Cap Index Fund (155,159 units) | \*\* | 17866510 |
| &nbsp;&nbsp;Vanguard | Vanguard Institutional Index Fund (113,582 units) | \*\* | 54394236 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement Income Fund (273,832 units) | \*\* | 3587195 |
| &nbsp;&nbsp;Vanguard | Vanguard International Growth Fund (111,241 units) | \*\* | 11298795 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2020 Fund (469,523 units) | \*\* | 12432956 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2025 Fund (1,796,157 units) | \*\* | 33570183 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2030 Fund (1,266,242 units) | \*\* | 47965242 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2035 Fund (2,133,121 units) | \*\* | 51152231 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2040 Fund (897,748 units) | \*\* | 38800660 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2045 Fund (956,423 units) | \*\* | 28377060 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2050 Fund (294,326 units) | \*\* | 14669186 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2055 Fund (185,984 units) | \*\* | 10342586 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2060 Fund (99,427 units) | \*\* | 5095647 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2065 Fund (70,755 units) | \*\* | 2378795 |
| &nbsp;&nbsp;Vanguard | Vanguard Target Retirement 2070 Fund (4,284 units) | \*\* | 114308 |
| &nbsp;&nbsp;Total investments |  |  | 696293521 |
| &nbsp;&nbsp;T. Rowe Price \* | Cash | \*\* | 8440 |
| &nbsp;&nbsp;Participant loans | Participants loans, with interest rates ranging from 4.25% - 9.50%, with various maturity dates through 2034 | \*\* | 12248408 |
| &nbsp;&nbsp;<u>Total Assets (Held at End of Year)</u> |  |  | $708550369 |
| \* Indicates party-in-interest to the Plan. | \* Indicates party-in-interest to the Plan. | \* Indicates party-in-interest to the Plan. | \* Indicates party-in-interest to the Plan. |
| \*\* Cost information is not required for participant-directed investments and participant loans and, therefore, is not included. | \*\* Cost information is not required for participant-directed investments and participant loans and, therefore, is not included. | \*\* Cost information is not required for participant-directed investments and participant loans and, therefore, is not included. | \*\* Cost information is not required for participant-directed investments and participant loans and, therefore, is not included. |
| \*\*\* The investment represents a holding fund pending allocation to participants and is not an investment option offered by the Plan. | \*\*\* The investment represents a holding fund pending allocation to participants and is not an investment option offered by the Plan. | \*\*\* The investment represents a holding fund pending allocation to participants and is not an investment option offered by the Plan. | \*\*\* The investment represents a holding fund pending allocation to participants and is not an investment option offered by the Plan. |

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<u>EXHIBIT INDEX</u>

<u>Exhibits</u>:

<u>[23.1](exhibit231-consentofindepe.htm)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <u>[Consent of Registe](exhibit231-consentofindepe.htm)[red Public Accounting Firm](exhibit231-consentofindepe.htm)</u> 

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | |
|:---|:---|
| | **MSC INDUSTRIAL DIRECT 401(k) PLAN** |
| Date: June 26, 2025 | |
| | /s/ BARBARA KNOLL |
| | Barbara Knoll<br>On behalf of the Administrative Committee of the MSC Industrial Direct 401(k) Plan |

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## Exhibit 23.1

**EXHIBIT 23.1**

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-48901) pertaining to the MSC Industrial Direct 401(k) Plan of MSC Industrial Direct Co., Inc. of our report dated June 26, 2025, with respect to the financial statements and schedule of the MSC Industrial Direct 401(k) Plan included in this Annual Report (Form 11-K) for the year ended December 31, 2024.

/s/ Ernst & Young LLP

Jericho, NY

June 26, 2025

<br>