Quarterly Results (FY26 Q4 Earnings Presentation)

OCTOBER 22, 2026

1

Average daily sales ("ADS") up 8.6% and above the high-end of our outlook driven by stronger than anticipated

volumes

2

Gross margin of 40.6% in line with our expectations and historical sequential averages

5

Reported EPS of $0.85 down 16% YoY while adjusted* EPS of $1.45 improved 33% YoY

3

Reported operating margin down 190 bps from asset impairment charge but improved 170 bps YoY to 10.9% on

an adjusted basis, above the range of our outlook driven by favorability in both sales and operating expenses

4

Achieved adjusted* incremental operating margin** of 27% in fiscal 4Q'26, inline with our expectation of stronger

performance in second half of the fiscal year

6

Returned approximately $208M to shareholders in the form of dividends and share repurchases during the

fiscal year with close to $50M returned in 4Q

* Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations

** The Company defines Incremental Operating Margin as the change in year-over-year Income from Operations as a percentage of the change in year-over-year Net Sales and Adjusted Incremental Operating Margin as Incremental Operating Margin adjusted investor.mscdirect.com 3

to exclude asset impairments and related charges, share reclassification litigation costs, restructuring and other costs, and loss on sale of property (prior year), by excluding such items from Income from Operations. The Company's management believes that

Incremental Operating Margin is useful because it shows the direction that operating profit margins are moving as a result of changes in net sales between periods, and that, by excluding the aforementioned items, Adjusted Incremental Operating Margin helps to more clearly show, on a comparable basis between periods, trends in the Company's underlying business and results of operations. The Company believes that investors benefit from seeing results from the perspective of management in addition to seeing results presented in accordance with GAAP for the same reasons and purposes for which management uses such non-GAAP financial measures.

Rob Kuhns

EVP & CFO

• Joined MSC as Executive Vice President and CFO in September

• 8 years spent with TopBuild, where he served as CFO for 4 years

• Extensive distribution and industrial sector experience

• Proven track record of driving profitable growth and creating value for shareholders through disciplined capital allocation and accretive M&A

FISCAL 4Q'26 HIGHLIGHTS

8.6%

YOY AVERAGE DAILY SALES

170bps

YOY ADJUSTED OPERATING MARGIN*

~27%

ADJUSTED* INCREMENTAL OPERATING MARGIN**

~33%

YOY ADJUSTED EARNINGS PER SHARE*

FY26 ACHIEVEMENTS

SALESFORCE OPTIMIZATION

• Completed final structural changes of our salesforce optimization work

• Enhanced onboarding and embedded sales management processes resulting in YoY volume growth during the

2nd half of the fiscal year with ~170 fewer sellers

PRICE/COST MANAGEMENT

• Managed gross margin to support volumes while successfully navigating

  price/cost dynamics and historic tungsten inflation

  ✓

  Achieved neutral price/cost and expanded gross margin by 10 bps YoY in FY'26

  STRATEGIC PARTNERSHIPS

• Strengthened strategic partnerships

• Began to leverage Autodesk Fusion's connected supply chain capabilities to enhance

  metalworking experts and services capabilities

  SUPPLIER RELATIONSHIPS

• Hosted MSC's first in-person supplier conference in 9 years with over 1,000 associates and 400 suppliers in attendance

✓

Achieved ~$100M of the

$500M annualized sales pipeline identified at the event

* Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations.

** The Company defines Incremental Operating Margin as the change in year-over-year Income from Operations as a percentage of the change in year-over-year Net Sales and Adjusted Incremental Operating Margin as Incremental Operating Margin adjusted to exclude asset impairments and related charges, share reclassification litigation costs, restructuring and other costs, and loss on sale of property (prior year), by excluding such items from Income from Operations. The Company's management believes that Incremental Operating Margin is useful because it shows the direction that operating profit margins are moving as a result of changes in net sales between periods, and that, by excluding the aforementioned items, Adjusted Incremental Operating Margin helps to more clearly show, on a comparable basis between periods, trends in the Company's underlying business and results of operations. The Company believes that investors benefit from seeing results from the perspective of management in addition to seeing results presented in accordance with GAAP for the same reasons and purposes for which management uses such non-GAAP financial measures.

investor.mscdirect.com 5

CORE CUSTOMER ADS

SALES PER REP PER DAY

TTM SALES PER HEAD COUNT

15%

10%

5%

0%

-5%

-10%

Core Customer ADS YoY % Change Total Company ADS YoY % Change

4.1% 6.4% 5.5%

-0.8%

1Q'25

2Q'25

3Q'25

4Q'25

1Q'26

2Q'26

-5.3% -6.8%

10.4%

8.1%

130

120

110

100

90

115

110

105

100

95

3Q'26

4Q'26

1Q'25

2Q'25

3Q'25

4Q'25

1Q'26

2Q'26

3Q'26

4Q'26

90

1Q'25

2Q'25

3Q'25

4Q'25

1Q'26

2Q'26

3Q'26

4Q'26

Indexed to 100

Indexed to 100

• 5 consecutive quarters of Core Customer ADS growth outperforming total company

• Achieved double-digit ADS growth for the 1st time since 1Q'23

• Supported by web ADS growth outperforming total company and operational enhancements in the field

• Sales per rep per day trends in 4Q'26 have improved by more than 20% vs. 1Q'25 levels

• Achieved YoY improvement in the mid-teens in 4Q'26

• Number of customer touches in FY'26 nearly doubled despite fewer reps YoY

• Exited FY'26 with TTM sales per headcount up low-double digits YoY

• Reported and Adjusted operating expenses* as a % of sales down 90 bps and 100 bps, respectively YoY in FY'26

• 4Q'26 ADS growth of ~9% achieved with ~250 fewer heads YoY

  * Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations. Individual amounts may not agree to the total due to rounding.

  MSC Total Organic Sales Growth

  3-Month Average - IP Index

  MSC Total Growth (3 Mo Avg) IP Growth (3 Mo Avg)

  20%

  15%

  10%

  5%

  0%

  -5%

  -10%

  IP Index Performance YoY of MSC's Top 5 Industries

  Industry Group	4Q'26
  Fabricated Metals	3.2%
  Machinery & Equipment	5.2%
  Aerospace	8.2%
  Motor Vehicle & Parts	1.6%
  Primary Metals	0.8%

  -15%

  -20%

  2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

  • Data as of September 18, 2026;

investor.mscdirect.com 7

(millions)

(millions and % of sales)

(millions and % of sales)

(per diluted share)

$1,079.2

$978.2

$438.6

$395.0

Reported Adjusted*

Reported Adjusted*

Q4 2025 Q4 2026

• ADS increase of 8.6% primarily driven by price of approximately 690 bps and 160 bps of volume improvement

• Core and Other Customers ADS up 10%, National Accounts ADS up 9%, and Public Sector ADS down 1%

• Sales to customers with an In-Plant program up 19%

• Sales through vending machines up 20%

  Q4 2025 Q4 2026

• Gross margin up 20 bps YoY

• In line with expectations and historical sequential averages

  8.6%

$117.8

$84.3

$90.3

$72.8

Q4 2025 Q4 2026 Q4 2025 Q4 2026

* Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations.

investor.mscdirect.com 8

Quarterly

$63.8

$58.5

Free Cash Flow* (millions)

Fiscal Year

$240.9 $225.2

Q4 2025 Q4 2026

FY 2025 FY 2026

Net Debt and Financial Leverage (millions, except ratio)

Net Debt Net Debt to EBITDA*

$429.5 $411.9

1.1x

1.0x

* Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations

Q4 2025 Q4 2026

Q4 2025 Q4 2026

** The Company defines Operating Cash Flow Conversion as Net cash provided by operating activities as a percentage of Net Income. The Company's management uses Operating Cash Flow Conversion to evaluate the Company's operating performance, in particular how efficiently the Company turns its sales and profits into cash, and to assess the efficiency of the Company's use of working capital. The Company believes Operating Cash Flow Conversion is useful to investors for the foregoing reasons and as a measure of the rate at which the Company converts its net income reported in accordance with GAAP to cash inflows, which helps investors assess whether the Company is generating sufficient cash flow to provide an adequate return

1Q'27 OUTLOOK

Up 9.5% to 10.5% YoY

AVERAGE DAILY SALES (ADS)

9.5% to 10.1%

ADJUSTED OPERATING MARGIN*

ASSUMPTIONS

• ADS improvement reflect building momentum in growth initiatives combined with benefits from price

• Gross margin expected to be slightly below historical 4Q to 1Q averages

• Assumes YoY and QoQ continued headwinds to profitability from inflation in freight and employee related expenses, including medical

15%

1Q'26

4%

2Q'26

3%

3Q'26

8%

4Q'26

9%

1Q'27 QTD

~11.5%**

9.5%

5%

0%

Sept Oct Nov Dec Jan Feb Mar Apr May June July Aug Sept Oct Nov

**Current October MTD trend

*Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations

** October 2026 estimate is based on data through the close of business on Monday, October 19; the fiscal month of October ends on October 31, 2026.

investor.mscdirect.com 11

1Q'27 ADS Mid Point

AVERAGE DAILY SALES CADENCE

*Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations

**5-year historical ADS average (FY'22-FY'26)

*** Includes expenditures associated with cloud computing arrangements

investor.mscdirect.com 12

FY'27 MODELING

ASSUMPTIONS

$100M - $105M $40M - $45M $90M - $100M 80% - 90% 24.5% - 25.5%

Depreciation and Interest and Other Capital Free Cash Flow Effective Tax Amortization Expense Expenditures*** Conversion* Rate

(millions)

$4,009.7

$3,769.5

FY 2025 FY 2026

• ADS growth of 6.0% primarily driven by price of 620 bps being partially offset by a decline in volumes of 40 bps

• Core and Other Customer ADS up 8%, National Accounts ADS up 5%, and Public Sector ADS flat

(millions and % of sales)

$1,536.1 $1,639.3

FY 2025 FY 2026

• Gross margin up 10 bps YoY and in line with expectations

• Strategically managed gross margin to support volumes while navigating price/cost dynamics

  Operating Profit

  (millions and % of sales)

  8.0%

Reported

$301.6

$320.6

Adjusted*

$379.3

$315.8

FY 2025 FY 2026 FY 2025 FY 2026

* Represents a non-GAAP financial measure. See appendix for non-GAAP reconciliations. Individual amounts may not agree to the total due to rounding.

the current year ERC tax benefit

investor.mscdirect.com 14

Non-GAAP Financial Measures

To supplement MSC's unaudited selected financial data presented consistent with accounting principles generally accepted in the United States ("GAAP"), the Company discloses certain non-GAAP financial measures, including non-GAAP income from operations, non-GAAP operating margin, non-GAAP incremental operating margin, non-GAAP provision for income taxes, non-GAAP net income and non-GAAP diluted earnings per share, that exclude asset impairments and related charges, restructuring and other costs, share reclassification litigation costs, employee retention credit ("ERC") tax benefit, loss on sale of property (prior year), and tax effects, as well as free cash flow conversion, which is a measure calculated using free cash flow, which is a non-GAAP measure.

These non-GAAP financial measures are not presented in accordance with GAAP or an alternative for GAAP financial measures and may be different from similar non-GAAP financial measures used by other companies. The presentation of this additional information is not meant to be considered in isolation or as a substitute for the most directly comparable GAAP financial measure and should only be used to evaluate MSC's results of operations in conjunction with the corresponding GAAP financial measure.

Financial data may include certain forward-looking information that is not presented in accordance with GAAP. The Company believes that a quantitative reconciliation of such forward-looking information to the most directly comparable financial measure calculated and presented in accordance with GAAP cannot be made available without unreasonable efforts because a reconciliation of these non-GAAP financial measures would require the Company to predict the timing and likelihood of potential future events such as restructurings, M&A activity, capital expenditures and other infrequent or unusual gains and losses. Neither the timing or likelihood of these events, nor their probable significance, can be quantified with a reasonable degree of accuracy. Accordingly, a reconciliation of such forward-looking information to the most directly comparable GAAP financial measure is not provided.

Incremental Operating Margin and Adjusted Incremental Operating Margin

The Company defines Incremental Operating Margin as the change in year-over-year Income from Operations as a percentage of the change in year-over-year Net Sales and Adjusted Incremental Operating Margin as Incremental Operating Margin adjusted to exclude such items listed above from Income from Operations. The Company's management believes that Incremental Operating Margin is useful because it shows the direction that operating profit margins are moving as a result of changes in net sales between periods, and that, by excluding the aforementioned items, Adjusted Incremental Operating Margin helps to show, on a comparable basis between periods, trends in the Company's underlying business and results of operations. The Company believes that investors benefit from seeing results from the perspective of management in addition to seeing results presented in accordance with GAAP for the same reasons and purposes for which management uses such non-GAAP financial measures.

Free Cash Flow ("FCF") and Free Cash Flow Conversion ("FCF Conversion")

FCF is a non-GAAP financial measure. FCF is used in addition to and in conjunction with results presented in accordance with GAAP, and FCF should not be relied upon to the exclusion of GAAP financial measures. Management strongly encourages investors to review our financial statements and publicly-filed reports in their entirety and to not rely on any single financial measure. FCF, which we reconcile to "Net cash provided by operating activities," is cash flow from operations reduced by "Expenditures for property, plant and equipment". We believe that FCF, although similar to cash flow from operations, is a useful additional measure since capital expenditures are a necessary component of ongoing operations. Management also views FCF, as a measure of the Company's ability to reduce debt, add to cash balances, pay dividends, and repurchase stock. FCF has limitations due to the fact that it does not represent the residual cash flow available for discretionary expenditures. For example, FCF does not incorporate payments made on finance lease obligations or required debt service payments. In addition, different companies define FCF differently. Therefore, we believe it is important to view FCF as a complement to our entire consolidated statements of cash flows. FCF Conversion is useful to investors for the foregoing reasons and as a measure of the rate at which the Company converts its net income reported in accordance with GAAP to cash inflows, which helps investors assess whether the Company is generating sufficient cash flow to provide an adequate return. A reconciliation of cash provided by operating activities to FCF, operating cash flow conversion and FCF conversion for the fiscal quarters and years ended August 29, 2026 and August 30, 2025, respectively, is shown below.

Non-GAAP Financial Measures

Results Excluding Asset Impairments and Related Charges, Share Reclassification Litigation Costs, ERC Tax Benefit, Restructuring and Other Costs, Loss on Sale of Property (prior year), and tax effects

In calculating certain non-GAAP financial measures, we exclude asset impairments and related charges, restructuring and other costs, share reclassification litigation costs, ERC tax benefit, loss on sale of property (prior year), and tax effects. Management makes these adjustments to facilitate a review of the Company's operating performance on a comparable basis between periods, for comparison with forecasts and strategic plans, for identifying and analyzing trends in the Company's underlying business and for benchmarking performance externally against competitors. We believe that investors benefit from seeing results from the perspective of management in addition to seeing results presented in accordance with GAAP for the same reasons and purposes for which management uses such non-GAAP financial measures.

Return on Invested Capital ("ROIC")

ROIC is calculated using a non-GAAP financial measure. We calculate ROIC by dividing non-GAAP net operating profit after tax ("NOPAT") by average invested capital, a GAAP measure. NOPAT is defined as tax effected income from operations. Average invested capital is defined as net debt plus shareholder's equity using a trailing 13-month average. We believe that ROIC is useful to investors as a measure of performance and of the effectiveness of the use of capital in our operations. We use ROIC as one measure to monitor and evaluate operating performance. This method of determining non-GAAP ROIC may differ from other companies' methods and therefore may not be comparable to those used by other companies. ROIC should be considered in addition to, rather than as a substitute for, other information provided in accordance with GAAP. The financial measure calculated under GAAP which is most directly comparable to ROIC is considered to be the ratio of Net income to Average invested capital. See below for the calculation of ROIC and the reconciliation to the comparable GAAP measure.

Net Debt to Earnings before Interest, Taxes, and Depreciation and Amortization ("EBITDA")

Net debt to EBITDA is calculated using a non-GAAP financial measure, EBITDA. The Company defines EBITDA as GAAP net income adjusted for taxes, total other expense and depreciation and amortization for the preceding 12 months. Net debt, a GAAP measure, is calculated as total debt less cash and cash equivalents. The Company presents net debt to EBITDA because it more clearly represents the operating profitability of the company and is a more accurate representation of the Company's financial position and its ability to cover its net debt obligations with results from its core operations. The Company's management uses net debt to EBITDA to evaluate the timeframe it would take to pay back its debt if net debt and EBITDA are held constant. The Company believes net debt to EBITDA is useful to investors for the foregoing reasons and as a measure of the rate at which the Company can cover its debts, which helps investors assess whether the Company has ability to grow its debt to support future growth initiatives. This method of determining non-GAAP EBITDA may differ from other companies' methods and therefore may not be comparable to those used by other companies. EBITDA should be considered in addition to, rather than as a substitute for, other information provided in accordance with GAAP.