Alliant Energy Corp

LNT

Exchange: Nasdaq
Industry: Electric & Other Services Combined
SEC CIK: 0000352541

SEC filings (opens in a new tab)

In the last 90 days, Alliant Energy Corp insiders filed 0 open-market purchases and 1 sale; 883 institutions reported holding it in 13F filings for Q2 2026, worth $19.3B in total; no superinvestor holds it.

13F holders, Q3 2026

Institutional positions in Alliant Energy Corp as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 7; −1 vs. Q2 2026
Shares held: 50.5K; −10.5K (−17.2%) vs. Q2 2026
Total value: $3.19M; −$1.46M (−31.3%) vs. Q2 2026
New holders: 0; 2 more added
Sold out: 1; 2 more reduced

875 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting LNT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding LNT and their total value by quarter
Quarter	Holders	Value
Q2 2026	883	$19.3B
Q1 2026	858	$17.1B
Q4 2025	834	$15.0B
Q3 2025	790	$15.0B
Q2 2025	774	$12.9B
Q1 2025	776	$13.4B
Q4 2024	718	$12.6B
Q3 2024	682	$12.6B
Q2 2024	658	$10.4B
Q1 2024	631	$10.3B
Q4 2023	653	$10.5B
Q3 2023	615	$9.71B
Q2 2023	635	$10.3B
Q1 2023	638	$10.3B
Q4 2022	661	$10.5B
Q3 2022	627	$10.1B
Q2 2022	659	$10.9B
Q1 2022	633	$11.8B
Q4 2021	614	$11.6B
Q3 2021	583	$10.5B
Q2 2021	575	$10.6B
Q1 2021	547	$10.2B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Alliant Energy Corp; share changes are against Q2 2026.

Institutions holding LNT in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Geneos Wealth Management Inc.	–	–	–	–	Not filed
Tower Trust & Investment Co	–	–	–	–	Not filed
First Horizon Corp	–	–	–	–	Not filed
TFC Financial Management	–	–	–	–	Not filed
Caitong International Asset Management Co., Ltd	–	–	–	–	Not filed
Acumen Wealth Advisors, LLC	–	–	–	–	Not filed
Pinnacle Wealth Planning Services, Inc.	–	–	–	–	Not filed
Wealth Enhancement Trust Services, Inc.	–	–	–	–	Not filed
Quent Capital, LLC	–	–	–	–	Not filed
Transamerica Financial Advisors, Inc.	–	–	–	–	Not filed
Graney & King, LLC	–	–	–	–	Not filed
Los Angeles Capital Management LLC	–	–	–	–	Not filed
First Community Trust NA	–	–	–	–	Not filed
Atlantic Union Bankshares Corp	–	–	–	–	Not filed
Spire Wealth Management	–	–	–	–	Not filed
Winch Advisory Services, LLC	–	–	–	–	Not filed
First National Bank	–	–	–	–	Not filed
Mowery & Schoenfeld Wealth Management, LLC	–	–	–	–	Not filed
MCF Advisors LLC	–	–	–	–	Not filed
Loomis Sayles & Co L P	–	–	–	–	Not filed
Bayban	–	–	–	–	Not filed
CoreCap Advisors, LLC	–	–	–	–	Not filed
Cromwell Holdings LLC	–	–	–	–	Not filed
Parkside Financial Bank & Trust	–	–	–	–	Not filed
Ostrum Asset Management	–	–	–	–	Not filed
Steigerwald, Gordon & Koch Inc.	–	–	–	–	Not filed
Community Financial Services Group, LLC	–	–	–	–	Not filed
Highland Investment Advisors LLC	–	–	–	–	Not filed
Owl Creek Wealth Partners LLC	–	–	–	–	Not filed
Elevated Capital Advisors, LLC	–	–	–	–	Not filed
Onefund, LLC	–	–	–	–	Not filed
Deseret Mutual Benefit Administrators	–	–	–	–	Not filed
TSFG, LLC	–	–	–	–	Not filed
TD Private Client Wealth LLC	–	–	–	–	Not filed
Central Trust Co	–	–	–	–	Not filed
Trust Co of Toledo NA	–	–	–	–	Not filed
Kimelman & Baird, LLC	–	–	–	–	Not filed
SBI Securities Co., Ltd.	–	–	–	–	Not filed
TIAA Wealth Investment Management LLC	–	–	–	–	Not filed
MRP Capital Investments, LLC	–	–	–	–	Not filed
Rossby Financial, LCC	–	–	–	–	Not filed
First Command Advisory Services, Inc.	–	–	–	–	Not filed
Continuum Advisory, LLC	–	–	–	–	Not filed
Cheviot Value Management, LLC	–	–	–	–	Not filed
Global Trust Asset Management, LLC	–	–	–	–	Not filed
Manchester Capital Management LLC	–	–	–	–	Not filed
CVA Family Office, LLC	–	–	–	–	Not filed
Salem Investment Counselors Inc	–	–	–	–	Not filed
Alpine Bank Wealth Management	–	–	–	–	Not filed
Financial Network Wealth Advisors LLC	–	–	–	–	Not filed
Hughes Financial Services, LLC	–	–	–	–	Not filed
Barrow Hanley Mewhinney & Strauss LLC	–	–	–	–	Not filed
Measured Wealth Private Client Group, LLC	–	–	–	–	Not filed
Rothschild Investment LLC	–	–	–	–	Not filed
Atlantic Trust, LLC	–	–	–	–	Not filed
Harel Insurance Investments & Financial Services Ltd.	–	–	–	–	Not filed
High Note Wealth, LLC	–	–	–	–	Not filed
Barrett & Company, Inc.	–	–	–	–	Not filed
Operose Advisors LLC	–	–	–	–	Not filed
Cedar Mountain Advisors, LLC	–	–	–	–	Not filed
MV Capital Management, Inc.	–	–	–	–	Not filed
Keating Financial Advisory Services, Inc.	–	–	–	–	Not filed
GHP Investment Advisors, Inc.	–	–	–	–	Not filed
Paladin Advisory Group, LLC	–	–	–	–	Not filed
Truvestments Capital LLC	–	–	–	–	Not filed
Ameriflex Group, Inc.	–	–	–	–	Not filed
Basecamp Wealth Advisors LLC	–	–	–	–	Not filed
Zions Bancorporation, National Association	–	–	–	–	Not filed
Strategic Investment Solutions, Inc.	–	–	–	–	Not filed
E Fund Management (Hong Kong) Co., Ltd.	–	–	–	–	Not filed
St Germain D J Co Inc	–	–	–	–	Not filed
Birchbrook, Inc.	–	–	–	–	Not filed
Colonial Trust Co	–	–	–	–	Not filed
Westside Investment Management, Inc.	–	–	–	–	Not filed
Harvest Fund Management Co., Ltd	–	–	–	–	Not filed
Newbridge Financial Services Group, Inc.	–	–	–	–	Not filed
Bogart Wealth, LLC	–	–	–	–	Not filed
Fairscale Capital, LLC	–	–	–	–	Not filed
Fortitude Family Office, LLC	–	–	–	–	Not filed
Cranbrook Wealth Management, LLC	–	–	–	–	Not filed
Hazlett, Burt & Watson, Inc.	–	–	–	–	Not filed
Raleigh Capital Management Inc.	–	–	–	–	Not filed
True Wealth Design, LLC	–	–	–	–	Not filed
Covestor Ltd	–	–	–	–	Not filed
Silver Grove Financial Group, Inc.	–	–	–	–	Not filed
MPWM Advisory Solutions, LLC	–	–	–	–	Not filed
Bell Investment Advisors, Inc	–	–	–	–	Not filed
Action Point Financial Planning, LLC	–	–	–	–	Not filed
Guinness Atkinson Asset Management Inc	–	–	–	–	Not filed
LRI Investments, LLC	–	–	–	–	Not filed
Compass Financial Management LLC	–	–	–	–	Not filed
Prestige Wealth Management Group LLC	–	–	–	–	Not filed
JFS Wealth Advisors, LLC	–	–	–	–	Not filed
Evolution Wealth Management Inc.	–	–	–	–	Not filed
Essential Partners LLC	–	–	–	–	Not filed
LGT Financial Advisors LLC	–	–	–	–	Not filed
IFG Advisory, LLC	–	–	–	–	Not filed
Capital Analysts, LLC	–	–	–	–	Not filed
Synergy Investment Management, LLC	–	–	–	–	Not filed
Kemnay Advisory Services Inc.	–	–	–	–	Not filed