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 CORP Executive Vice President Antonio P. Smyth reported a routine tax-related share disposition. The company withheld 1,259 shares of common stock at $72.18 per share to cover tax obligations tied to the vesting and settlement of restricted stock units.
The footnotes clarify this is not an open-market sale by Smyth but a mechanistic tax-withholding event. After the transaction, he directly holds 20,678 shares of Alliant Energy common stock, reflecting his ongoing equity stake in the company.
ALLEN PATRICK E reported acquisition or exercise transactions in this Form 4 filing.
Alliant Energy Corp director Patrick E. Allen received a grant of 512.996 Deferred Common Stock Units, each tied to the company’s common stock at an indicated value of $73.10 per unit. These units will be settled in common shares when his board service ends and now bring his total deferred units to 45,514.856. The position also reflects adjustments from accrued dividends through a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.
Alliant Energy Corp director Ignacio A. Cortina received a grant of deferred stock units, acquiring 666.895 Deferred Common Stock Units at an assigned value of $73.10 per unit. Following this award, his total deferred units position is 10,227.316, held directly.
The units represent Deferred Common Stock and will be settled in shares of common stock when Cortina’s service as a director ends. The reported total also reflects adjustments for accrued dividends through a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.
ALLIANT ENERGY CORP director Stephanie Cox received an award of 547.1960 Deferred Common Stock Units on April 10, 2026. The units are linked to a reference price of $73.1000 per unit and are structured as derivative securities tied to the company’s common stock.
Each deferred unit corresponds to 1 share of common stock, so the award relates to 547.1960 underlying shares. After this grant, Cox directly holds a total of 17,253.4510 deferred units. According to the terms, these units will be settled in shares of common stock when her service as a director ends.
The reported holdings also reflect adjustments for accrued dividends, which were credited through a dividend reinvestment transaction that is exempt from Section 16 under Rule 16a-11. The filing shows no open‑market buying or selling, only this grant/award acquisition of deferred units.
Falotico Nancy Joy reported acquisition or exercise transactions in this Form 4 filing.
ALLIANT ENERGY CORP director Nancy Joy Falotico received a grant of 778.044 Deferred Common Stock Units, tied to an equivalent number of common shares at a reference price of $73.10 per unit. These units will be settled in common stock when she leaves the board.
The holding now totals 19,630.248 Deferred Common Stock Units, reflecting both the new grant and prior balances, including adjustments for accrued dividends through a dividend reinvestment mechanism.
Garcia Michael Dennis reported acquisition or exercise transactions in this Form 4 filing.
ALLIANT ENERGY CORP director Michael Dennis Garcia received a grant of 875.513 Deferred Common Stock Units. These units relate to the company’s common stock and were valued at $73.10 per unit on the grant date. After this award, he holds 25,762.222 deferred units in total. The units will be settled in shares of common stock when his service as a director ends, and the balance includes adjustments for accrued dividends through a dividend reinvestment mechanism.
Newport Roger K reported acquisition or exercise transactions in this Form 4 filing.
ALLIANT ENERGY CORP director Roger K. Newport received a grant of 769.494 Deferred Common Stock Units tied to company common stock. The units were valued at $73.10 per unit and increase his holdings to 31,445.967 deferred units following the transaction.
The units will be settled in shares of common stock when he terminates service as a director, meaning he does not receive actual shares or cash now. The filing notes the balance also reflects adjustments for accrued dividends through a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.
Alliant Energy Corp director Raymond Christie received a grant of deferred common stock units as part of his director compensation. On this Form 4, he acquired 1,043.092 deferred common stock units at a reference value of $73.10 per unit, increasing his direct holdings to 8,585.487 deferred units. These units are to be settled in shares of common stock when his service as a director ends and include adjustments for accrued dividends through a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.
Alliant Energy Corporation is asking shareowners to vote at its virtual 2026 annual meeting on May 20, 2026, on electing four directors, approving executive pay on an advisory basis, and ratifying Deloitte & Touche LLP as auditor for 2026.
The proxy highlights a pay-for-performance design. 2025 GAAP EPS from continuing operations was $3.14, with adjusted EPS of $3.24, leading to a 130% payout of the annual incentive pool based on financial, customer, environmental and safety metrics. CEO Lisa Barton’s 2025 base salary was $1,139,500, with a long-term equity target equal to 460% of salary.
Long-term incentives are mostly performance-based shares tied to relative total shareholder return, net income growth, and renewable generation and storage build-out, plus time-vesting restricted stock units. The Board remains majority independent, uses majority voting in uncontested elections, and oversees risk through a formal enterprise risk management framework and specialized Board committees.