Public ownership evidence

Alliant Energy Corporation Common Stock (LNT) Ownership Disclosures

Read LNT insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-08-13T03:59:59.999Z

Recent Form 4 activity

2026-08-132026-08-10DURIAN ROBERT JS0.1Not reported
2026-07-152026-07-10Asthana ManuA998.04Not reported
2026-07-152026-07-10Raymond ChristieA998.04Not reported
2026-07-152026-07-10Falotico Nancy JoyA744.44Not reported
2026-07-152026-07-10Cortina Ignacio AA638.09Not reported
2026-07-152026-07-10Garcia Michael DennisA837.7Not reported
2026-07-152026-07-10Cox StephanieA523.56Not reported
2026-07-152026-07-10Newport Roger KA736.26Not reported
2026-07-152026-07-10ALLEN PATRICK EA490.84Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Cornerstone Financial Management LLC2026-06-302026-08-2952$3,967None
Cornerstone Financial Management LLC2026-03-312026-08-2933$2,368None
Cornerstone Financial Management LLC2025-12-312026-08-2926$1,690None
Advisors Asset Management, Inc.2021-12-312026-08-2828,106$1,727,676None
Advisors Asset Management, Inc.2022-12-312026-08-2838,725$2,138,007None
Advisors Asset Management, Inc.2020-06-302026-08-2831,291$1,496,961None
Advisors Asset Management, Inc.2022-06-302026-08-2837,381$2,191,000None
Advisors Asset Management, Inc.2021-09-302026-08-2826,757$1,498,000None
Corient Private Wealth LP2026-06-302026-08-284,773$364,090None
Corient Private Wealth LP2026-06-302026-08-2832,196$2,456,306None
SHEPHERD WEALTH MANAGEMENT Ltd LIABILITY Co2026-06-302026-08-284,400$310,672None
Principia Wealth Advisory, LLC2026-06-302026-08-278$610None
Principia Wealth Advisory, LLC2026-03-312026-08-2710$718None
Advisors Asset Management, Inc.2024-03-312026-08-2750,370$2,538,648None
Advisors Asset Management, Inc.2025-03-312026-08-2733,658$2,165,892None
Advisors Asset Management, Inc.2022-09-302026-08-2737,153$1,969,000None
Advisors Asset Management, Inc.2020-12-312026-08-2732,596$1,680,000None
Advisors Asset Management, Inc.2022-03-312026-08-2733,297$2,080,397None
Advisors Asset Management, Inc.2023-06-302026-08-2744,353$2,327,645None
Advisors Asset Management, Inc.2023-09-302026-08-2748,776$2,363,197None
Advisors Asset Management, Inc.2023-03-312026-08-2741,889$2,236,873None
Advisors Asset Management, Inc.2021-03-312026-08-2729,641$1,605,357None
Advisors Asset Management, Inc.2021-06-302026-08-2723,232$1,295,000None
Advisors Asset Management, Inc.2020-09-302026-08-2729,702$1,534,108None
Advisors Asset Management, Inc.2025-09-302026-08-2731,664$2,134,470None
Advisors Asset Management, Inc.2023-12-312026-08-2753,334$2,736,034None
Advisors Asset Management, Inc.2019-12-312026-08-2628,414$1,554,814None
Advisors Asset Management, Inc.2025-06-302026-08-2535,147$2,125,339None
CYBER HORNET ETFs LLC2026-06-302026-08-25703$53,632None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25299,868$22,876,930None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2522,876,930$299,868,000None
Advisors Asset Management, Inc.2024-09-302026-08-2242,641$2,587,882None
Advisors Asset Management, Inc.2024-06-302026-08-2248,633$2,475,420None
Advisors Asset Management, Inc.2024-12-312026-08-2239,906$2,360,041None
Advisors Asset Management, Inc.2025-12-312026-08-2233,233$2,160,477None
Advisors Asset Management, Inc.2020-03-312026-08-2233,027$1,594,874None
Assenagon Asset Management S.A.2026-06-302026-08-2293,380$7,123,960None
Harvest Fund Management Co., Ltd2026-06-302026-08-21204$16,000None
Rehmann Capital Advisory Group2026-06-302026-08-214,137$315,658None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2038,874$2,965,680None
Beacon Pointe Advisors, LLC2026-06-302026-08-1910,560$805,651None
Advisors Asset Management, Inc.2019-03-312026-08-1935,459$1,671,183None
Advisors Asset Management, Inc.2019-09-302026-08-1928,835$1,555,072None
Advisors Asset Management, Inc.2019-06-302026-08-1928,410$1,394,363None
Ensign Peak Advisors, Inc2026-03-312026-08-1934,547$2,479,093None
Ensign Peak Advisors, Inc2025-12-312026-08-1954,403$3,536,739None
Ensign Peak Advisors, Inc2025-09-302026-08-1968,280$4,602,755None
Fulcrum Asset Management LLP2026-06-302026-08-1954$4,168None
Livforsakringsbolaget Skandia, Omsesidigt2026-06-302026-08-193,033$231,357None
NORTH STAR ASSET MANAGEMENT INC2026-06-302026-08-193,340$254,780None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Corient Private Wealth LP ↗

Recent Congressional disclosures

Ro Khanna2026-10-082026-09-25sale$1,001 - $15,000

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.