South Bow files to sell 150,451 common shares

South Bow Corporation reports a proposed sale of 150,451 common shares.

Rhea-AI Filing Summary

South Bow Corporation reports a proposed sale of 150,451 common shares. The notice shows the shares arise from a stock option exercise through a cashless exercise on 03/09/2026 and lists the TSX as the trading market. The filing is a Rule 144 notice of proposed sale by the holder.

Insights

Securities Counsel

Routine Rule 144 notice for resale following option exercise; no material corporate change.

The filing records a proposed disposition of 150,451 common shares tied to a stock option exercise executed as a cashless exercise on 03/09/2026. This is a regulatory disclosure under resale rules, not a company capital-raising event.

Practical dependencies include confirming compliance with holding-period and manner-of-sale conditions; timing and actual market sales depend on holder decisions and transfer mechanics disclosed in subsequent filings.

FAQ

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

What does South Bow (SOBO) Form 144 for 150,451 shares mean?

It notifies a proposed sale of 150,451 common shares under Rule 144. The filing records a cashless stock option exercise on 03/09/2026, signaling the holder intends to resell shares but does not confirm completed market trades.

Who is the seller named in the SOBO Form 144?

The seller is reported as South Bow Corporation in the filing. The notice lists the disposition method as a stock option exercise with a cashless exercise on 03/09/2026 for 150,451 shares.

Does the Form 144 indicate proceeds will go to the issuer (SOBO)?

No, the Form 144 shows a resale tied to a cashless exercise; it does not indicate the issuer will receive proceeds. The filing describes a holder's planned disposition rather than an issuer sale.

When can the shares be sold after a Rule 144 filing by SOBO?

Timing of any sale is determined by Rule 144 conditions and holder decisions. The filing records the exercise date 03/09/2026, but actual market sales and timing are not specified in this notice.

Does the Form 144 show shares sold in the prior three months for SOBO?

The filing includes a section titled 'Securities Sold During The Past 3 Months' but does not list completed sales amounts in the provided excerpt. The primary disclosed quantity is 150,451 shares.

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

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Accepted by SEC EDGAR 03/09/2026 - 06:39 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	0002045443
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	South Bow Corporation
SEC File Number	001-42021
Address of Issuer	707 5th Street SW Suite 900 CALGARY ALBERTA, CANADA T2P 1V8
Phone	587-318-5410
Name of Person for Whose Account the Securities are To Be Sold	Bevin Wirzba
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	Director
Relationship to Issuer	President and CEO

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 Shares	Canaccord Genuity Corp. Centennial Place - East Tower 520 3rd Ave SW, Suite 2400 Calgary A0 T2P 0R3	150451	6816415.94	208250512	03/09/2026	TSX

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 Shares	03/09/2026	Stock Option Exercise	South Bow Corporation			150451	03/09/2026	Cashless Exercise

* 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	03/09/2026
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/ Bevin Wirzba
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)