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 reported the initial shareholdings of a company officer. Vice President Rebecca C. Valcq filed a statement of beneficial ownership showing that she directly holds 1,762.21 shares of Alliant Energy common stock. This filing reflects her ownership position as of the event date of 01/05/2026 and indicates that these shares are held directly, with no indirect ownership reported. The filing also shows no derivative securities, such as options or warrants, listed for her at this time.
Alliant Energy Corporation director Patrick E. Allen reported an award of deferred equity on January 9, 2026. He acquired 576.746 Deferred Common Stock Units at $65.02 per unit, bringing his total holdings of these derivative units to 44,665.768, held directly.
The deferred units are designed to be settled in shares of Alliant Energy common stock when Allen’s service as a director ends. The reported balance also reflects adjustments for accrued dividends through a dividend reinvestment mechanism that is exempt from Section 16 under Rule 16a-11.
Alliant Energy Corp director Ignacio A. Cortina reported an automatic award of 749.769 deferred common stock units on January 9, 2026, coded as an acquisition. The units are priced at $65.02 per unit and increase his directly held derivative position to 9,489.019 deferred common stock units. According to the disclosure, these units will be settled in shares of Alliant Energy common stock when Cortina’s service as a director ends, and the reported balance includes adjustments for accrued dividends through a dividend reinvestment feature that is exempt from Section 16 under Rule 16a-11.
Alliant Energy Corp director Stephanie Cox reported receiving deferred common stock units as part of her director compensation. On January 9, 2026, she acquired 615.196 deferred common stock units at a reference price of $65.02 per unit. After this award, she beneficially owns 16,581.485 deferred common stock units.
The units are designed to be settled in Alliant Energy common shares when she terminates her service as a director, and the reported balance includes adjustments for accrued dividends through a dividend reinvestment mechanism.
Alliant Energy Corp director Nancy Joy Falotico reported an acquisition of derivative equity tied to the company’s common stock. On 01/09/2026, she received 874.731 Deferred Common Stock Units at a reference price of $65.02 per unit, coded as an acquisition. After this transaction, she held a total of 18,711.408 Deferred Common Stock Units, all reported as directly owned.
The filing notes that these units are to be settled in shares of common stock when she terminates service as a director. It also explains that the total includes adjustments for accrued dividends through a dividend reinvestment transaction that is exempt from Section 16 under Rule 16a-11.
Alliant Energy Corporation director Michael Dennis Garcia reported a routine equity award. On January 9, 2026, he acquired 984.313 deferred common stock units of Alliant Energy at $65.02 per unit. After this transaction, he beneficially owned 24,700.844 deferred common stock units, held directly.
According to the disclosure, these deferred stock units will be settled in shares of Alliant Energy common stock when Garcia’s service as a director ends. The total includes adjustments for accrued dividends through a dividend reinvestment feature that is exempt from Section 16 under Rule 16a-11. No sales were reported in this filing.
Alliant Energy Corp director Roger K. Newport reported acquiring 865.118 deferred common stock units on January 9, 2026. The units were credited at a reference price of $65.02 per unit, increasing his holdings of deferred common stock units to 30,447.369, held directly. These deferred units are to be settled in shares of Alliant Energy common stock when he terminates his service as a director, and the reported balance includes adjustments for accrued dividends through a dividend reinvestment feature.
Alliant Energy Corporation director Raymond Christie reported an acquisition of deferred equity compensation. On January 9, 2026, he received 1,172.716 deferred common stock units at a reference price of $65.02 per unit, bringing his total holdings of these derivative units to 7,486.065.
These deferred units are designed to be settled in shares of Alliant Energy common stock when his service as a director ends, effectively aligning his compensation with long-term shareholder value. The reported balance also includes adjustments for accrued dividends through a dividend reinvestment mechanism that is exempt from Section 16 under Rule 16a-11.
Alliant Energy Corporation and its utility subsidiaries are expanding their boards and adding a new independent director. On January 5, 2026, the boards of Alliant Energy, Interstate Power and Light Company, and Wisconsin Power and Light Company increased their board size to 11 members and appointed Manu Asthana as a director effective February 23, 2026.
Asthana, 52, previously served as President and Chief Executive Officer of PJM Interconnection from 2020 to 2025, an organization that oversees the largest power grid in North America, serving 67 million people across 13 states and the District of Columbia. He will stand for election at Alliant Energy’s 2026 Annual Meeting of Shareowners as a nominee to serve until the 2029 Annual Meeting, alongside three directors whose terms expire in 2026.
Effective February 23, 2026, he will join the Audit Committee and Operations Committee of each board. For 2026 board service, he will receive non-employee director compensation in line with existing practices, with an annual retainer of $300,000 for service on all three boards.
Alliant Energy Corporation announced a leadership transition at its Wisconsin Power and Light Company (WPL) subsidiary. After 39 years with the organization, David A. de Leon, President of WPL and Senior Vice President of Alliant Energy and Interstate Power and Light Company (IPL), has informed the company that he intends to retire from all his positions. Effective January 5, 2026, he will step down as President of WPL but continue as Senior Vice President of Alliant Energy, IPL and WPL until his retirement on or about July 1, 2026.
Effective January 5, 2026, the Board of Directors of WPL appointed Rebecca Cameron Valcq as President of WPL. She will also serve as Vice President of Alliant Energy and IPL. Valcq, 50, has been Assistant Vice President of the company since 2024 and previously chaired the Public Service Commission of Wisconsin from 2019 to 2024, overseeing regulation of more than 1,000 utilities and leading the state’s Energy, Broadband and Energy Innovation offices.
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