Welcome to our dedicated page for Alliant Energy SEC filings (Ticker: LNT), 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 Alliant Energy Corporation (LNT) SEC filings page provides access to the company’s official regulatory documents as filed with the U.S. Securities and Exchange Commission. As a Wisconsin corporation and S&P 500 utility holding company, Alliant Energy files reports that cover its consolidated operations as well as those of its key subsidiaries, Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL). These filings include current reports on material events, registration statements for securities offerings and other disclosures related to its regulated utility and financing activities.
For Alliant Energy, Form 8-K filings are particularly important for tracking developments such as earnings announcements, leadership changes, debt and hybrid security offerings, and other significant corporate events. Recent 8-Ks describe financial results for specific quarters, underwriting agreements and indentures for long-dated debentures and junior subordinated notes, and changes in executive roles at WPL and within the broader organization.
Investors and analysts can also use SEC filings to understand how Alliant Energy funds its capital expenditure plans and manages its capital structure. Registration statements and related exhibits detail public offerings of securities by Alliant Energy, IPL and WPL, including the intended use of proceeds, key terms of the securities and associated legal opinions. These documents complement the company’s earnings releases by providing formal, regulator-reviewed descriptions of its financing transactions.
On Stock Titan, Alliant Energy filings are updated in near real time as they are posted to the EDGAR system. AI-powered tools summarize lengthy documents, highlight key sections and help explain the implications of complex items, such as the terms of new debt securities or the nature of material events disclosed in Form 8-K. Users can quickly locate filings related to LNT, IPL and WPL, review exhibits and track how regulatory disclosures align with the company’s stated strategy, capital plans and risk factors.
Alliant Energy Corporation has filed a post‑effective amendment to its shelf registration statement on Form S‑3 to add junior subordinated debt securities as a new class of securities that may be issued. Under this shelf, Alliant Energy may from time to time offer common stock, senior or subordinated debt, warrants, stock purchase contracts and stock purchase units, while certain shareowners may separately resell common stock using related prospectus supplements. The base prospectus explains that net proceeds from any primary offerings will generally be used for corporate purposes such as debt repayment, capital spending, investments, working capital and potential security repurchases, with specific terms and pricing to be set in future supplements.
Alliant Energy 10-Q (Q2 2025)
For the three months ended June 30, 2025 Alliant Energy reported consolidated revenues of $961 million versus $894 million a year ago and operating income of $223 million versus $130 million. Net income attributable to common shareowners was $174 million compared with $87 million; diluted EPS was $0.68 versus $0.34. For the six months, revenues were $2,088 million versus $1,925 million and net income was $387 million versus $245 million (diluted EPS $1.50 versus $0.95).
Key balance sheet and cash flow items: cash and equivalents increased to $329 million from $81 million and total assets were $23,750 million. Long-term debt, net (excluding current portion) rose to $9,642 million from $8,677 million and current maturities increased to $1,373 million. Six-month construction and acquisition expenditures totaled $976 million. Net cash from operating activities was $492 million, while net cash used for investing activities was $894 million.
Alliant Energy Corporation (LNT) – Form 4 filing
Director Ignacio A. Cortina reported the grant of 759 Deferred Common Stock Units on 11 July 2025 under transaction code “A” (award). Each unit represents the right to receive one share of LNT common stock upon the director’s departure from the board. The filing lists an indicative reference price of $62.08 and brings Cortina’s total deferred stock balance to 7,916.756 units, which already reflects automatic dividend reinvestment adjustments permitted under Rule 16a-11.
The award appears to be routine board compensation rather than an open-market purchase or sale; therefore, the transaction has no direct cash outlay by the director and limited immediate impact on float or insider sentiment.
Alliant Energy Corporation (LNT) – Form 4 insider transaction
Director Stephanie Cox reported the grant of 1,168 deferred common stock units on 11 July 2025. The award is coded “A”, indicating an acquisition under the company’s non-derivative compensation plan rather than an open-market purchase. Each unit is economically equivalent to one share of common stock and is settled in stock when the director leaves the board. The filing lists a reference price of $62.08, implying an award value of roughly $72.5 k. Following the transaction, Cox’s total holdings in this plan rise to 14,663.069 units, enhancing her equity exposure and alignment with shareholder interests.
- No shares were sold; ownership remains recorded as direct (D).
- The increase is part of routine director compensation; no 10b5-1 plan was indicated.
- The filing does not include additional financial results or operational disclosures.
Alliant Energy Corporation (LNT) – Form 4 filing reports that director Roger K. Newport acquired 876 deferred common stock units on 07/11/2025 at a reference price of $62.08 per unit (transaction code «A»).
Deferred stock units settle in common shares when the director’s board service ends. After this transaction, Mr. Newport beneficially owns approximately 28,338.4 deferred stock units. The filing also notes that the share count includes automatic adjustments for reinvested dividends pursuant to Rule 16a-11.
No shares were sold and no open-market cash was exchanged; the units were granted under the director compensation plan. The transaction modestly increases insider exposure but does not materially change the company’s share structure or provide earnings information.