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LNTAlliant Energy

Utilities · Electric & Gas Utilities · Nasdaq
LNT quote by TradingView
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Filings with the SEC since Jan 22, 2014

1,005 filings, 12 in the last 30 days

SEC filing index
Latest annual reportOpen ↗
Feb 20, 2026
10-K, period to Dec 31, 2025
Latest quarterly reportOpen ↗
Oct 30, 2026
10-Q, period to Sep 30, 2026
Latest current reportOpen ↗
Oct 30, 2026
8-K: Quarterly results
Filed in the last 30 days
12
of 1,005 in all
Timeline

Every filing on one line

1 yr2 yr3 yr
Annual report (10-K)Quarterly report (10-Q)Current report (8-K)Auditor changeCEO, CFO, COO or CAO changeRestatementLate filing noticeInsider purchaseCluster buy (3+ insiders)SEC comment letterShare offering (S-3, 424B)
All 37 events

From the SEC filing index. Insider purchases go back 180 days (the Form 4s downloaded).

Every filing

Newest first, by kind

Each form links to sec.gov
All 1005 Annual & quarterly 52Current reports (8-K) 157Insiders 671Proxy & votes 23Big owners (13D/13G) 34Shares & debt offered 25SEC letters 10Other 33
FiledFormWhat it isPeriod
Nov 6, 2026S-3ASR Shelf registration all files
Oct 30, 202610-Q Quarterly reportSep 30, 2026 all files · tables
Oct 30, 20268-K Quarterly resultsOct 29, 2026 all files
Oct 28, 20268-K Material agreement signed, New debt or obligationOct 26, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Oct 14, 20264 Insider tradeOct 9, 2026 all files
Aug 21, 20268-K Other eventsAug 21, 2026 all files
Aug 12, 20264 Insider tradeAug 10, 2026 all files
Jul 31, 202610-Q Quarterly reportJun 30, 2026 all files · tables
Jul 31, 20268-K Quarterly resultsJul 30, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jul 14, 20264 Insider tradeJul 10, 2026 all files
Jun 16, 202611-K Employee plan annual reportDec 31, 2025 all files
May 21, 20268-K Shareholder vote resultsMay 20, 2026 all files
May 1, 202610-Q Quarterly reportMar 31, 2026 all files · tables
May 1, 20268-K Quarterly resultsApr 30, 2026 all files
Apr 29, 2026SCHEDULE 13G 5%+ owner (passive) all files
Apr 28, 2026SCHEDULE 13G 5%+ owner (passive) all files
Apr 16, 20264 Insider tradeApr 15, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Apr 14, 20264 Insider tradeApr 10, 2026 all files
Mar 31, 2026ARS Annual report to shareholdersDec 31, 2025 all files
Mar 31, 2026DEFA14A Extra proxy material all files
Mar 31, 2026DEF 14A Proxy statementMay 20, 2026 all files
Mar 26, 2026SCHEDULE 13G/A 5%+ owner (passive), amended all files
Mar 19, 20264/A Insider trade (amended)Feb 19, 2026 all files
Mar 19, 20268-K Material agreement signedMar 19, 2026 all files
Mar 19, 2026424B5 Prospectus all files
Mar 4, 20263 New insiderFeb 23, 2026 all files
Mar 4, 20268-K Material agreement signed, New debt or obligationMar 2, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 23, 20264 Insider tradeFeb 19, 2026 all files
Feb 20, 202610-K Annual reportDec 31, 2025 all files · tables
Feb 20, 20268-K Quarterly resultsFeb 19, 2026 all files
Feb 9, 2026S-8 POS all files
Feb 9, 2026S-8 POS all files
Feb 9, 2026S-8 POS all files
Feb 9, 2026S-8 POS all files
Feb 9, 2026S-8 POS all files
Feb 9, 2026S-8 POS all files
Feb 9, 2026S-8 POS all files
Jan 15, 20263 New insiderJan 5, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 12, 20264 Insider tradeJan 9, 2026 all files
Jan 8, 20268-K Director or officer changeJan 5, 2026 all files
Dec 16, 20258-K Director or officer changeDec 10, 2025 all files
Dec 5, 20258-K Other eventsDec 2, 2025 all files
Nov 7, 202510-Q Quarterly reportSep 30, 2025 all files · tables
Nov 7, 20258-K Quarterly resultsNov 6, 2025 all files
Oct 14, 20254 Insider tradeOct 10, 2025 all files
Oct 14, 20254 Insider tradeOct 10, 2025 all files
Oct 14, 20254 Insider tradeOct 10, 2025 all files
Oct 14, 20254 Insider tradeOct 10, 2025 all files
Oct 14, 20254 Insider tradeOct 10, 2025 all files
Oct 14, 20254 Insider tradeOct 10, 2025 all files
Sep 26, 20258-K Other eventsSep 23, 2025 all files
Sep 25, 2025424B5 Prospectus all files
Sep 23, 2025FWP Offering terms all files
Sep 23, 2025424B5 Prospectus all files
Sep 22, 2025POSASR all files
Sep 11, 20258-K Other eventsSep 8, 2025 all files
Aug 8, 202510-Q Quarterly reportJun 30, 2025 all files · tables
Aug 8, 20258-K Quarterly resultsAug 7, 2025 all files
Jul 15, 20254 Insider tradeJul 11, 2025 all files
Jul 15, 20254 Insider tradeJul 11, 2025 all files
Jul 15, 20254 Insider tradeJul 11, 2025 all files
Jul 15, 20254 Insider tradeJul 11, 2025 all files
Jul 15, 20254 Insider tradeJul 11, 2025 all files
Jul 15, 20254 Insider tradeJul 11, 2025 all files
Jun 24, 202511-K Employee plan annual reportDec 31, 2024 all files
May 20, 20258-K Shareholder vote resultsMay 16, 2025 all files
May 19, 20258-K Other eventsMay 13, 2025 all files
Show the other 75 filings on this page

Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.

Next Earnings releases →