Welcome to our dedicated page for Atlas Corporation SEC filings (Ticker: ATCO), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page provides access to historical SEC filings for Atlas Corp. (ATCO), which previously operated as a global asset management company focused on maritime and energy infrastructure. The company filed Form 15-12G, terminating its SEC registration and ending its public reporting obligations. These archived filings document Atlas Corp.'s regulatory history and provide insight into its operations, financial performance, and corporate actions during its time as a publicly traded company.
Atlas Corp.'s SEC filings reveal the financial structure and operational details of its two-platform business model. The company's annual reports on Form 20-F provided comprehensive disclosure of its maritime operations through Seaspan Corporation and energy operations through APR Energy Limited, including segment-level financial data, fleet composition details, contracted revenue backlogs, and risk factors specific to infrastructure asset management. These filings also documented the company's significant corporate transactions, including its merger with Poseidon and various acquisition activities.
For investors researching Atlas Corp.'s history, the Form 6-K filings contain material event notifications relevant to foreign private issuers, including earnings announcements, dividend declarations, and corporate developments. The company's proxy materials and other periodic disclosures provide historical context on governance structure, executive compensation, and shareholder matters. Access these archived documents to understand Atlas Corp.'s business evolution, financial trajectory, and the regulatory disclosures that characterized its operations in the maritime and energy infrastructure sectors.
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.
Atlas Corp. filed a Form 6‑K/A to amend its March 15, 2024 report. The amendment replaces the second paragraph of Seaspan Corporation’s independent auditor’s report in Exhibit I; all other parts, including the consolidated financial statements and notes, are unchanged and identical to the original filing.
For 2023, Seaspan reported revenue of $1,715.1 million and net earnings of $429.0 million. Total assets were $13,066.8 million at December 31, 2023, with long‑term debt of $3,109.0 million and other financing arrangements of $4,305.3 million. Cash from operating activities was $993.7 million. The auditor issued an unqualified opinion and highlighted as a critical audit matter the assessment of impairment indicators for vessels; the Company concluded no indicators of impairment for 2023.
Atlas Corp. completed the redemption of all outstanding 7.875% Cumulative Redeemable Perpetual Preferred Shares – Series H. The company redeemed 120,000 shares at $25.00 per share on October 30, 2025.
Regular dividends accrued up to but not including the redemption date, totaling $0.492188 per share, were paid in cash to holders of record as of October 29, 2025.
Atlas Corp. (ATCO) announced a listing change: the New York Stock Exchange filed Form 25 to remove the 7.875% Cumulative Redeemable Perpetual Preferred Shares – Series H from listing and/or registration under Section 12(b) of the Exchange Act.
The NYSE certified it complied with its rules to strike the class, and Atlas Corp. complied with exchange rules and 17 CFR 240.12d2-2(c) governing voluntary withdrawal.
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