Welcome to our dedicated page for American Superconductor SEC filings (Ticker: AMSC), 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.
The American Superconductor Corporation (AMSC) SEC filings page on Stock Titan brings together the company’s U.S. regulatory disclosures, including current reports on Form 8-K and other key documents filed with the Securities and Exchange Commission. As a Nasdaq-listed issuer, AMSC uses these filings to report material events, financial results and stockholder meeting outcomes.
AMSC’s recent Form 8-K filings include items reporting quarterly financial results for its fiscal 2025 first and second quarters, where the company furnished press releases detailing revenue, net income, segment performance for its Grid and Wind businesses, and management’s business outlook. Another Form 8-K describes the results of the company’s annual meeting of stockholders, including director elections, auditor ratification and advisory votes on executive compensation.
Through its registration statements and prospectus supplements, AMSC also discloses public offerings of common stock, including offering size, pricing and intended use of proceeds for working capital, general corporate purposes and potential strategic acquisitions. These securities filings provide context for investors tracking the company’s capital structure and financing activities.
On Stock Titan, users can access AMSC filings as they are made available from the SEC’s EDGAR system and can use AI-powered summaries to interpret complex documents. These tools help explain the significance of items such as earnings-related 8-Ks, annual reports on Form 10-K, quarterly reports on Form 10-Q and insider transaction reports on Form 4, where applicable.
For those researching AMSC’s Gridtec, Marinetec and Windtec businesses, the filings page offers a structured way to review the company’s official financial disclosures, risk factor discussions and governance information. By combining real-time updates with AI-generated explanations, Stock Titan aims to make AMSC’s regulatory history easier to read and compare across reporting periods.
American Superconductor Corporation filed an amended current report to add detailed financial information for its newly acquired Brazilian business, Comtrafo Indústria de Transformadores Elétricos S.A. Comtrafo’s audited 2024 results show revenue of R$ 365,141 thousand and profit of R$ 63,552 thousand, with total assets of R$ 493,431 thousand and shareholders’ equity of R$ 251,702 thousand. The business held cash and cash equivalents of R$ 115,990 thousand and loans and borrowings of R$ 83,951 thousand as of December 31, 2024. The filing also includes unaudited interim results for the nine months ended September 30, 2025, where Comtrafo generated revenue of R$ 276,563 thousand and profit of R$ 10,001 thousand. KPMG issued a qualified opinion on the 2024 financials solely because they omit comparative prior‑period figures. AMSC provides unaudited pro forma condensed consolidated financial statements to illustrate the combined company after the Comtrafo acquisition.
American Superconductor Corporation (AMSC) reported much stronger results for the quarter and nine months ended December 31, 2025, helped by acquisitions and a major tax valuation change. Quarterly revenue rose to
For the nine-month period, revenue increased to
AMSC closed the
American Superconductor Corporation filed a current report to announce its financial results for the third quarter of its fiscal year 2025, which ended on December 31, 2025. The company released these results through a press release dated February 4, 2026, furnished as Exhibit 99.1.
The press release is provided as supplemental information and is expressly furnished, not filed, meaning it is not subject to certain Exchange Act liabilities and is not automatically incorporated into other securities law filings unless specifically referenced.
The Vanguard Group has filed an amended beneficial ownership report on American Superconductor Corp, disclosing ownership of 3,526,632 shares of common stock, representing 7.4% of the class as of 12/31/2025.
Vanguard reports no sole voting or dispositive power, but shared voting power over 364,254 shares and shared dispositive power over 3,526,632 shares. Vanguard states that its clients, including registered investment companies and other managed accounts, are entitled to dividends and sale proceeds, and that no other single person has an interest in more than 5% of the shares reported.
The filing also notes an internal realignment effective January 12, 2026, after which certain Vanguard subsidiaries or business divisions are expected to report beneficial ownership separately, while pursuing the same investment strategies as before. Vanguard certifies that the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of American Superconductor.
American Superconductor (AMSC) Director reported a purchase of common stock. On 06/18/2019, the reporting person bought 200 shares at $8.33 per share (transaction code P). Following this transaction, the reporting person beneficially owns 60,907 shares, held directly.
American Superconductor (AMSC) reported Q2 FY2026 results with revenue of $65,862,000, up from $54,471,000 a year ago. Gross margin was $20,439,000 versus $15,613,000, and operating income reached $2,965,000 compared with a loss of $753,000 last year. Net income was $4,750,000, near last year’s $4,887,000; year‑to‑date net income rose to $11,474,000 from $2,363,000.
Cash and cash equivalents increased to $212,891,000 from $79,494,000 at March 31, 2025, supported by $124,577,000 of net proceeds from a public equity offering. Current deferred revenue declined to $52,157,000 from $66,797,000. The company reported remaining performance obligations of $209,500,000 expected over the next twelve months and $78,200,000 over thirteen to sixty months.
By segment, Grid delivered $54,342,000 and Wind $11,520,000 in revenue, with segment operating income of $1,278,000 and $1,687,000 respectively. NWL contributed $16,400,000 of revenue and $2,000,000 of net income in the quarter. Shares outstanding were 45,186,789 as of October 31, 2025.
American Superconductor Corporation furnished an 8-K to report that it announced its financial results for the second quarter ended September 30, 2025 of its fiscal year 2025. The detailed results are provided in a press release attached as Exhibit 99.1, which is described as furnished, not filed, under the Exchange Act. The filing also includes an exhibit for the cover page Inline XBRL data.
American Superconductor Corp (AMSC) filed a Form 144 reporting a proposed sale of 9,703 shares of Class A common stock through UBS Financial Services on Nasdaq with an aggregate market value of $493,451. The shares were acquired on 09/20/2016 via a non-qualified stock option issued by the company, and payment for the proposed sale is to be made by wire transfer. The filing lists 45,160,926 shares outstanding and shows no securities sold in the past three months by the seller. The filer also affirms they do not possess undisclosed material information about the issuer.
Arthur H. House, a director of American Superconductor Corporation (AMSC), filed a Form 4 reporting stock option-related activity and an open-market sale. The filing shows a transaction dated 08/06/2025 related to a $6.80 exercise-price stock option covering 9,703 shares and a sale on 08/08/2025 of 9,703 common shares at $50.9205 per share. The Form 4 states the shares were sold for tax and estate planning purposes. Following these transactions the reporting person directly holds 48,663 shares. The filing also references the Amended and Restated 2007 Director Stock Plan and provides vesting/grant timing for the option.