WESCO insider files Form 144 for 4,039-share NYSE sale

Rhea-AI Filing Summary

WESCO International (WCC) filed a Form 144 indicating a proposed sale of 4,039 common shares through Morgan Stanley Smith Barney LLC, with an aggregate market value of $1,043,741.82. The approximate sale date is 11/05/2025 on the NYSE. The issuer had 48,646,230 shares outstanding.

The shares to be sold were acquired via a stock option exercise on 11/05/2025, paid in cash. Recent activity disclosed includes prior sales over the past three months, such as 7,522 shares on 11/04/2025 for $1,965,122.50 and 4,260 shares on 08/28/2025 for $966,061.08. Proceeds from any sales accrue to the selling stockholder.

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	4039	1043741.82	48646230	11/05/2025	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	11/05/2025	Stock Option Exercise	Issuer			4039	11/05/2025	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
DIANE LAZZARIS 225 West Station Square Drive Suite 700 Pittsburgh, PA 15219	Common	11/04/2025	7522	1965122.50
DIANE LAZZARIS 225 West Station Square Drive Suite 700 Pittsburgh, PA 15219	Common	08/28/2025	4260	966061.08
DIANE LAZZARIS 225 West Station Square Drive Suite 700 Pittsburgh, PA 15219	Common	08/26/2025	3160	714998.87

144: Remarks and Signature

Remarks

Date of Notice

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

What does WESCO (WCC) disclose in this Form 144?

A proposed sale of 4,039 common shares with an aggregate market value of $1,043,741.82, to be sold on or about 11/05/2025 on the NYSE.

Who is executing the sale and through which broker?

The sale is for the account of Diane Lazzaris, through Morgan Stanley Smith Barney LLC.

How were the shares to be sold acquired?

They were acquired via a stock option exercise on 11/05/2025, with cash payment.

How many WESCO shares are outstanding?

Shares outstanding are reported as 48,646,230.

What recent sales by the same seller are disclosed?

Disclosed sales include 7,522 shares on 11/04/2025 for $1,965,122.50 and 4,260 shares on 08/28/2025 for $966,061.08.

Which exchange is named for the sale?

The filing lists the NYSE.

Does the company receive proceeds from these sales?

No. Proceeds go to the selling stockholder in a Form 144 resale.