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Alliant Energy SEC filings, summarized

We read every Alliant Energy 8-K filing and insider trade the night it hits SEC EDGAR, and turn it into a two-minute plain-English summary.

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Recent filings

8-KMarch 19, 2026

Alliant Energy filed a Distribution Agreement (Mar 19, 2026) with agents Barclays, BofA, Goldman, J.P.

Alliant Energy filed a Distribution Agreement (Mar 19, 2026) with agents Barclays, BofA, Goldman, J.P. Morgan, KeyBanc, Mizuho, MUFG, TD and Wells Fargo;…

8-KMarch 19, 2026

BREAKING: Alliant Energy ($LNT) signs distribution & forward-sale agreement to sell up to $1.0B of common…

BREAKING: Alliant Energy ($LNT) signs distribution & forward-sale agreement to sell up to $1.0B of common stock via agents — sets up an ATM/forward facility…

8-KMarch 4, 2026

Alliant Energy ($LNT) filed an 8‑K (Item 9.01) adding Exhibit 10.1 — a Credit Agreement dated March 2,…

Alliant Energy ($LNT) filed an 8‑K (Item 9.01) adding Exhibit 10.1 — a Credit Agreement dated March 2, 2026 among Alliant Energy, U.S. Bank National…

8-KMarch 4, 2026

Alliant Energy ($LNT) filed a Form 8-K on 2026-03-04 under Item 2.03 noting the creation of a direct…

Alliant Energy ($LNT) filed a Form 8-K on 2026-03-04 under Item 2.03 noting the creation of a direct financial obligation or off‑balance‑sheet arrangement;…

8-KMarch 4, 2026

BREAKING: Confirmed — $LNT signs a $400M term loan with U.S.

BREAKING: Confirmed — $LNT signs a $400M term loan with U.S. Bank; $100M incremental option (no lender obligation). Facility matures 03/01/2027. 💥💸…

8-KFebruary 20, 2026

Alliant Energy filed Form 8‑K (Item 9.01) furnishing Exhibit 99.1 — press release dated Feb 19, 2026 — and…

Alliant Energy filed Form 8‑K (Item 9.01) furnishing Exhibit 99.1 — press release dated Feb 19, 2026 — and Exhibit 104 (Inline XBRL cover). No financial…

8-KFebruary 20, 2026

Alliant Energy Corp.

Alliant Energy Corp. furnished an 8‑K (Item 2.02) on Feb 19, 2026 announcing financial results for Q4 and year ended Dec 31, 2025. Press release is…

8-KJanuary 8, 2026

Boards of Alliant Energy, Interstate Power & Light and Wisconsin Power & Light increased directors to 11…

Boards of Alliant Energy, Interstate Power & Light and Wisconsin Power & Light increased directors to 11 and appointed Manu Asthana (ex‑PJM CEO) effective…