[144] MSC Industrial Direct Co., Inc. SEC Filing

Rhea-AI Filing Summary

MSC Industrial Direct Co., Inc. (NYSE: MSM) – Form 144 filing discloses that insider Kimberly A. Shacklett intends to sell 2,130 common shares through Morgan Stanley Smith Barney on or about 07-10-2025. The shares were acquired the same day via stock-option exercise and have an aggregate market value of $193,191. A separate 10b5-1 sale of 2,129 shares on 07-09-2025 generated $192,887 of gross proceeds.

• Total shares outstanding: 55,675,778 – the proposed sale equals roughly 0.004% of float.
• Broker: Morgan Stanley Smith Barney LLC, New York.
• Rule 144 / 10b5-1: Filing certifies no undisclosed adverse information and that trades follow a written trading plan.

The filing signals routine liquidity management by an insider rather than a strategic corporate action. Given the very small percentage of shares involved and lack of operational disclosures, market impact should be minimal, though some investors view any insider selling as a modestly negative sentiment indicator.

Positive

• Transparent 10b5-1 plan indicates pre-scheduled trades, reducing insider-information risk.
• Sale size is immaterial at only 0.004% of shares outstanding, limiting dilution or price pressure.

Negative

• Insider selling can be perceived as a bearish signal despite small volume.
• Immediate sale upon option exercise may suggest limited confidence in upside or desire for liquidity.

Insights

Securities Analyst

TL;DR Routine Form 144 shows insider sale of 2,130 MSM shares (<0.01% float); immaterial financial impact, slightly negative sentiment.

The transaction totals roughly $193k and follows another $193k sale a day earlier. Both come under a 10b5-1 plan, limiting concerns about information asymmetry. Combined sales of 4,259 shares are far below daily trading volume and do not affect ownership concentration or share count. No operational, guidance, or strategic details are included, so the filing does not alter fundamental valuation. Investors may note a sentiment headwind from insider selling, but the magnitude suggests neutral overall impact.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2130	193191.00	55675778	07/10/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/10/2025	Exercise of Stock Options	Issuer			2130	07/10/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for KIMBERLY A SHACKLETT 515 Broadhollow Road Melville NY 11747	Common	07/09/2025	2129	192887.40

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many MSM shares does Kimberly A. Shacklett plan to sell under this Form 144?

The filing covers 2,130 common shares valued at approximately $193,191.

What percentage of MSC Industrial Direct’s outstanding shares is involved?

The planned sale represents roughly 0.004 % of the 55,675,778 shares outstanding.

Were any shares sold recently before this notice?

Yes, 2,129 shares were sold on 07-09-2025 for $192,887 under a 10b5-1 plan.

How were the shares being sold acquired?

They were acquired through the exercise of stock options on 07-10-2025 and paid for in cash.

Does this filing provide any earnings or operational updates for MSM?

No. The Form 144 strictly relates to insider sales and contains no financial or operational disclosures about the company.