Planned sale of 1,750 shares of WCN stock

A holder associated with WCN filed to sell 1,750 common shares through Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE, with an aggregate market value of $290,500.00 as of 08/13/2026.

Rhea-AI Filing Summary

A holder associated with WCN filed to sell 1,750 common shares through Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE, with an aggregate market value of $290,500.00 as of 08/13/2026.

The shares relate to restricted stock that vested under a registered plan for services rendered, including 385 shares vesting on 02/18/2026 and 1,365 shares vesting on 02/17/2026. No additional securities were reported as sold during the past three months.

Key Figures

Shares planned for sale: 1,750 shares Aggregate market value: $290,500.00 Planned sale date: 08/13/2026 +2 more

5 metrics

Shares planned for sale 1,750 shares Common stock to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services

Aggregate market value $290,500.00 Value of 1,750 common shares as of 08/13/2026

Planned sale date 08/13/2026 Date associated with planned NYSE sale of common shares

Restricted stock vesting 1 385 shares Common shares vesting on 02/18/2026 under a registered plan for services rendered

Restricted stock vesting 2 1,365 shares Common shares vesting on 02/17/2026 under a registered plan for services rendered

Key Terms

Restricted Stock, Vesting, Registered Plan, Services Rendered

4 terms

Restricted Stock financial

"Common | 02/18/2026 | Restricted Stock Vesting Under a Registered Plan"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Vesting financial

"02/18/2026 | Restricted Stock Vesting Under a Registered Plan"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Registered Plan financial

"Restricted Stock Vesting Under a Registered Plan | Issuer"

A registered plan is a savings or investment account that a government recognizes for special tax treatment and rules, such as limits on how much you can put in and conditions for withdrawals. For investors it matters because those rules change how much of your gains are taxed, how quickly your money can be accessed and what strategies make sense — like a labeled jar that gives tax breaks but comes with rules about when and how you can take the money out.

Services Rendered financial

"385 | 02/18/2026 | Services Rendered"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the WCN Form 144 filing report?

It reports a planned sale of 1,750 WCN common shares through Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE, with an aggregate market value of $290,500.00 as of 08/13/2026.

How many WCN shares are planned to be sold and at what value?

The filing lists 1,750 common shares planned for sale with an aggregate market value of $290,500.00. These shares are expected to be sold on the NYSE as of 08/13/2026.

What is the source of the WCN shares in this Form 144?

The shares come from restricted stock vesting under a registered plan for services rendered, including 385 shares vesting on 02/18/2026 and 1,365 shares vesting on 02/17/2026.

Were any WCN shares sold in the past three months before this Form 144?

The Form 144 indicates no additional WCN common shares were reported as sold during the past three months, beyond the planned sale of 1,750 shares disclosed here.

Which intermediary is handling the planned WCN share sale?

The planned sale of 1,750 WCN common shares is listed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/13/2026 - 04:23 PM Accepted by SEC EDGAR 08/13/2026 - 04:22 PM Learn about SEC filing dates

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	0001582336
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	WASTE CONNECTIONS, INC.
SEC File Number	001-34370
Address of Issuer	6220 Hwy 7, Suite 600 Woodbridge ONTARIO, CANADA L4H 4G3
Phone	(905) 532-7510
Name of Person for Whose Account the Securities are To Be Sold	SUSAN NETHERTON
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	Officer

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	1750	290500.00	252049532	08/13/2026	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	02/18/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			385	02/18/2026	Services Rendered
Common	02/17/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			1365	02/19/2025	Services Rendered

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/13/2026
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	/s/ Susan Netherton
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)