ATCO Form 15: registration termination and reporting suspension

Rhea-AI Filing Summary

Atlas Corp. filed a Form 15 to terminate registration under Section 12(g) or suspend its duty to file reports under Sections 13 and 15(d) of the Exchange Act. The filing covers the company’s Common Shares, Series D Preferred Shares, Series H Preferred Shares, and 7.125% Senior Notes due 2027. The submission lists None for other classes with a remaining duty to file reports. The notice was signed by Peter Li, Secretary and General Counsel.

Insights

Securities counsel

Administrative deregistration/suspension filing listing covered securities.

Atlas Corp. submitted Form 15, which serves as a certification and notice to terminate registration under Section 12(g) or suspend reporting duties under Sections 13 and 15(d). The filing explicitly lists the securities to which the notice applies.

The covered classes are Common Shares, Series D and Series H Preferred Shares, and 7.125% Senior Notes due 2027. The document specifies None for any other classes that would retain a duty to file reports.

Form 15 status and effectiveness details are not provided in this excerpt. Subsequent disclosures may clarify timing and any implications for future Exchange Act reporting.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION

UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934

OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934.

Commission File Number: 001-39237

ATLAS CORP.

(Translation of registrant’s name into English)

23 Berkeley Square

London, United Kingdom

W1J 6HE

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Common Shares, par value of $0.01 per share

Series D Preferred Shares, par value of $0.01 per share

Series H Preferred Shares, par value of $0.01 per share

7.125% Senior Notes due 2027

(Title of each class of securities covered by this Form)

None

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

Rule 12g-4(a)(1)		☒
Rule 12g-4(a)(2)		☐
Rule 12h-3(b)(1)(i)		☒
Rule 12h-3(b)(1)(ii)		☐
Rule 15d-6		☐
Rule 15d-22(b)		☐

Approximate number of holders of record as of the certification or notice date: One (1) holder

Pursuant to the requirements of the Securities Exchange Act of 1934, Atlas Corp. has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

Date: November 10, 2025				Atlas Corp.
				By:		/s/ Peter Li
				Name:		Peter Li
				Title:		Secretary and General Counsel

FAQ

What action did ATCO take in this filing?

Atlas Corp. filed a Form 15 to terminate registration under Section 12(g) or suspend its duty to file reports under Sections 13 and 15(d).

Which Atlas Corp. securities are covered by the Form 15?

Common Shares; Series D Preferred Shares; Series H Preferred Shares; and 7.125% Senior Notes due 2027.

Are there other classes that still require reporting?

The filing states None for other classes with a remaining duty to file reports.

What is Atlas Corp.’s Commission File Number?

The Commission File Number is 001-39237.

Who signed the Form 15 for Atlas Corp.?

The notice was signed by Peter Li, Secretary and General Counsel.

Where are Atlas Corp.’s principal executive offices located?

23 Berkeley Square, London, United Kingdom, W1J 6HE.