LNT at a glance
Alliant Energy (LNT, SEC CIK 352541) filed its latest 10-K annual report on February 20, 2026, a 10-Q quarterly report on July 31, 2026, an 8-K current report on July 31, 2026 and Form 4 insider filings as recently as August 12, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended December 31, 2025 (FY2025), Alliant Energy (LNT) reported revenue of $4.4 billion (up 9.6% from FY2024) and net income of $810.0 million. Diluted EPS was $3.14.
- As of June 30, 2026, 44 institutional investment managers tracked by SignalX reported holding Alliant Energy (LNT) shares worth $9.8 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by DURIAN ROBERT J on August 10, 2026 of 0 shares at $68.60 per share.
- In the last 90 days, LNT insiders reported 0 open-market purchases ($0) and 1 open-market sale ($6.654) on Form 4, a net sale of $6.654.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $4.4B
- +9.6% vs prior year
- Insiders · 90 days
- 0 buys · 1 sell
- Net −$6.654
- 13F holders
- 44 funds
- $9.8B · +0 vs prior quarter
- Latest 8-K
- Jul 31, 2026
- Item 2.02
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Dec 31, 2025
Management Discussion & Analysis
- Revenue $3.697B in 2025, up $325M YoY from $3.372B, driven by higher electric utility revenues (+$333M) and gas utility revenues (+$60M)
- Utilities and Corporate Services net income $875M, EPS $3.39 in 2025 vs $722M, EPS $2.81 in 2024; consolidated net income $810M, EPS $3.14 vs $690M, EPS $2.69
- Best performing segment IPL net income improved $95M YoY; worst segment Non-utility and Parent net income down $34M YoY due to asset valuation and higher financing expense
- No specific cash flow numbers given; capital allocation includes plans for $2.4B common stock issuance (2026-2029), $500M long-term debt by IPL, $300M by WPL in 2026; 5% dividend increase to $2.14/share annualized in 2026
- Management expects higher revenues and electric sales in 2026 driven by load growth, new data centers; anticipates increased O&M, depreciation, interest expense; risks include regulatory approvals and debt financings
Business Overview
- Core business: Regulated electric and natural gas utility serving Midwest retail customers via IPL and WPL
- New emphasis: Exit of IPL’s steam business post-2025; continued focus on renewable energy projects with 400 MW solar placed in service 2024
- Strategic shift: Advancing generation mix with renewable additions, energy storage, natural gas, and coal-to-gas conversions to meet demand and environmental compliance
- Quantitative highlight: Total employees 2,948 as of Dec 31, 2025, with 58% covered by collective bargaining agreements
- Noteworthy fact: EPA finalized rescinding 2009 GHG finding in Feb 2026 affecting regulation scope, and delayed key regulations pending 2026 rulings
Risk Factors
- Compliance risk with NERC Critical Infrastructure Protection and DHS Transportation Security Administration cybersecurity standards
- Cybersecurity threat from evolving risks potentially impacting operations despite layered defenses and annual third-party NIST framework assessments
- Supply chain exposure to third-party vendors with access to IT systems monitored via ERM and cybersecurity audits, with high-risk vendors under continuous review
- Cyber liability insurance coverage up to undisclosed limits to mitigate financial impact of cybersecurity incidents
- Dependence on Senior VP and CIO with 40 years IT experience for cybersecurity program leadership and Board reporting
AI summary of the LNT 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended Jun 30, 2026
Management Discussion & Analysis
- Q2 revenue $943M, up $16M YoY, with electric revenue $861M and gas revenue $82M
- Net income $170M vs $174M YoY; Utilities and Corporate Services $148M vs $190M
- Best segment WPL electric revenue $430M vs $433M; IPL electric revenue $431M vs $418M
- Cash $25M vs $329M at June 30, 2025; operating cash flow $481M vs $492M
- Near-term outlook: data-center agreements totaling approximately 370 MW; EPA environmental-rule impacts remain uncertain
Risk Factors
- Risk Factors unchanged materially from the most recent Form 10-K
- No newly added risk factor identified for the quarter ended June 30, 2026
AI summary of the LNT 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 2.02: Results of Operations and Financial Condition
- Second-quarter and first-half 2026 results announced for periods ended June 30, 2026
- Financial details contained in furnished Exhibit 99.1 press release
Item EX-99.1: Item EX-99.1
- Q2 GAAP EPS $0.65 vs $0.68; higher rate-base revenue was offset by maintenance, financing, depreciation, and tax costs
- Six-month GAAP EPS $1.52 vs $1.50; ongoing EPS $1.47 after excluding a $0.05 state tax benefit
Item 5.07: Submission of Matters to a Vote of Security Holders
- Four director nominees elected through 2029, with Michael Garcia receiving weakest support at 177.5M votes for
- Executive compensation approved on advisory basis, with 196.0M votes for versus 8.7M against
Item 2.02: Results of Operations and Financial Condition
- Q1 2026 results for three months ended March 31, 2026
- Press release furnished as Exhibit 99.1, containing the financial details investors should review
Item EX-99.1: Item EX-99.1
- Q1 GAAP EPS $0.87 vs $0.83; ongoing EPS $0.82 vs $0.83, indicating underlying earnings softness despite reported growth
- Reaffirmed 2026 ongoing EPS guidance of $3.36–$3.46 per share
AI summaries of LNT 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for LNT
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| DURIAN ROBERT J | Sell | Aug 10, 2026 | 0.097 | $68.60 |
| ALLEN PATRICK E | A | Jul 10, 2026 | 490.838 | $76.40 |
| Cortina Ignacio A | A | Jul 10, 2026 | 638.089 | $76.40 |
| Cox Stephanie | A | Jul 10, 2026 | 523.561 | $76.40 |
| Newport Roger K | A | Jul 10, 2026 | 736.257 | $76.40 |
| Asthana Manu | A | Jul 10, 2026 | 998.036 | $76.40 |
| Raymond Christie | A | Jul 10, 2026 | 998.036 | $76.40 |
| Falotico Nancy Joy | A | Jul 10, 2026 | 744.437 | $76.40 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | $4.0B | $4.0B | $4.4B |
| Operating Income | - | $886.0M | $1.0B |
| Net Income | $703.0M | $690.0M | $810.0M |
| Op. Margin | - | 22.3% | 23.5% |
| Net Margin | 17.5% | 17.3% | 18.6% |
| Balance Sheet | |||
| Total Assets | $21.2B | $22.7B | $25.0B |
| Equity | $6.8B | $7.0B | $7.3B |
| ROE | 10.4% | 9.9% | 11.0% |
| Per Share | |||
| EPS | $2.78 | $2.69 | $3.14 |
| Cash Flow | |||
| Operating CF | $867.0M | $1.2B | $1.2B |
Source: XBRL data in Alliant Energy (LNT)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate LNT share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 44 | $9.84B |
| Q1 2026 | 44 | $8.74B |
| Q4 2025 | 39 | $7.42B |
| Q3 2025 | 39 | $7.62B |
| Q2 2025 | 37 | $6.30B |
| Q1 2025 | 36 | $5.09B |
| Q4 2024 | 31 | $4.21B |
| Q3 2024 | 25 | $2.32B |
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- Two Sigma Investments−68.9K
- Soros Fund Management−18.5K
- PARK NATIONAL CORP /OH/−1.9K
Source: 13F-HR filings on SEC EDGAR (aggregated from 295 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
LNT filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 4 | Aug 12, 2026 | - | - | - |
| 8-K | Jul 31, 2026 | - | Analysis | - |
| 10-Q | Jul 31, 2026 | Jun 30, 2026 | Analysis | |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 8-K | May 21, 2026 | - | Analysis | |
| 8-K | May 1, 2026 | - | Analysis | - |
| 10-Q | May 1, 2026 | Mar 31, 2026 | Analysis | |
| SC 13G | Apr 29, 2026 | - | - | |
| SC 13G | Apr 28, 2026 | - | - | |
| 4 | Apr 16, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 4 | Apr 14, 2026 | - | - | - |
| 8-K | Mar 19, 2026 | - | Analysis | - |
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LNT SEC filings: frequently asked questions
Are LNT insiders buying or selling?
In the last 90 days, Alliant Energy (LNT) officers, directors and 10% owners reported no open-market purchases and 1 open-market sale worth $7 by 1 insider on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold LNT stock?
As of June 30, 2026, the largest Alliant Energy (LNT) holders among the 13F filers tracked by SignalX were BlackRock ($1.9 billion), State Street Corp ($1.3 billion), Vanguard Capital Management LLC ($1.3 billion), Vanguard Portfolio Management LLC ($1.1 billion), T. Rowe Price Group ($878.5 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was LNT's revenue in fiscal year 2025?
For the fiscal year ended December 31, 2025 (FY2025), Alliant Energy (LNT) reported revenue of $4.4 billion (up 9.6% from FY2024) and net income of $810.0 million. Diluted EPS was $3.14. The figures come from the XBRL data in the 10-K.
What are the main risks in LNT's latest 10-K?
In the 10-K filed February 20, 2026, Alliant Energy (LNT) flagged: Compliance risk with NERC Critical Infrastructure Protection and DHS Transportation Security Administration cybersecurity standards. Cybersecurity threat from evolving risks potentially impacting operations despite layered defenses and annual third-party NIST framework assessments. (AI summary of the Risk Factors section.)
What did LNT report in its latest 8-K?
Alliant Energy (LNT) filed an 8-K on July 31, 2026 reporting Item 2.02 (Results of Operations and Financial Condition). Second-quarter and first-half 2026 results announced for periods ended June 30, 2026.
What are the latest LNT SEC filings?
Alliant Energy (LNT) filed its latest 10-K annual report on February 20, 2026, a 10-Q quarterly report on July 31, 2026, an 8-K current report on July 31, 2026 and a Form 4 insider filing on August 12, 2026.
What is LNT's SEC CIK number?
Alliant Energy (LNT)'s SEC Central Index Key (CIK) is 352541. EDGAR lists every LNT filing under that number.
Ask anything about LNT
The research agent reads LNT's filings, financials, insider trades and 13F holders, then answers with sources.