Companies: 10,795·Total market cap: $144.5T
Alliant Energy Corporation

Alliant Energy Corporation

LNTNASDAQUtilities● Active
$71.72
$-1.15(-1.58%)
Market Cap$18.5B
P/E Ratio
52W High$75.76
52W Low$59.62

Alliant Energy Corporation (LNT) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · LNT · as of Jun 8, 2026

Activity summary

Buy transactions

0

P-Purchase only

Sell transactions

0

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

NEUTRAL
↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Alliant Energy Corporation insiders have shown mixed buying and selling activity over the past 12 Months.

Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

LNT insider buying and selling by quarter

LNT insider selling · LNT insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling
180K90K0
2025 Q3
2025 Q4
2026 Q1
2026 Q2

Mobile shows last 4Q · Desktop shows full 8Q

Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · LNT ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

LNT executive sell shares · LNT board member insider trading · LNT insider trading SEC filing

Showing 40 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Smyth Antonio P

EVP

Other

Date

Apr 15

Shares

1,259

Price

$72.18

Value

$91K

View Form 4 on SEC.gov

Barton Lisa M

President and CEO · Director

Award

Date

Feb 19

Shares

29,527

Price

Value

View Form 4 on SEC.gov

Barton Lisa M

President and CEO · Director

Other

Date

Feb 19

Shares

28,594

Price

$70.01

Value

$2.00M ⚡

View Form 4 on SEC.gov

Barton Lisa M

President and CEO · Director

Award

Date

Feb 19

Shares

47,533

Price

Value

View Form 4 on SEC.gov

Valcq Rebecca C.

VP

Award

Date

Feb 19

Shares

1,004

Price

Value

View Form 4 on SEC.gov

de Leon David A

SVP

Award

Date

Feb 19

Shares

2,306

Price

Value

View Form 4 on SEC.gov

de Leon David A

SVP

Award

Date

Feb 19

Shares

8,616

Price

Value

View Form 4 on SEC.gov

de Leon David A

SVP

Other

Date

Feb 19

Shares

5,207

Price

$70.01

Value

$365K

View Form 4 on SEC.gov

DURIAN ROBERT J

EVP and CFO

Award

Date

Feb 19

Shares

5,950

Price

Value

View Form 4 on SEC.gov

DURIAN ROBERT J

EVP and CFO

Award

Date

Feb 19

Shares

27,882

Price

Value

View Form 4 on SEC.gov

DURIAN ROBERT J

EVP and CFO

Other

Date

Feb 19

Shares

16,630

Price

$70.01

Value

$1.16M ⚡

View Form 4 on SEC.gov

Farlinger Mayuri

VP

Award

Date

Feb 19

Shares

1,098

Price

Value

View Form 4 on SEC.gov

Farlinger Mayuri

VP

Award

Date

Feb 19

Shares

3,026

Price

Value

View Form 4 on SEC.gov

Farlinger Mayuri

VP

Other

Date

Feb 19

Shares

1,179

Price

$70.01

Value

$83K

View Form 4 on SEC.gov

Smyth Antonio P

EVP

Award

Date

Feb 19

Shares

5,240

Price

Value

View Form 4 on SEC.gov

Smyth Antonio P

EVP

Award

Date

Feb 19

Shares

13,114

Price

Value

View Form 4 on SEC.gov

Smyth Antonio P

EVP

Other

Date

Feb 19

Shares

6,226

Price

$70.01

Value

$436K

View Form 4 on SEC.gov

Syse Dylan

CAO and Controller

Award

Date

Feb 19

Shares

750

Price

Value

View Form 4 on SEC.gov

Syse Dylan

CAO and Controller

Other

Date

Feb 19

Shares

506

Price

$70.01

Value

$35K

View Form 4 on SEC.gov

Syse Dylan

CAO and Controller

Award

Date

Feb 19

Shares

1,063

Price

Value

View Form 4 on SEC.gov

Smyth Antonio P

EVP

Award

Date

Apr 15

Shares

9,727

Price

Value

View Form 4 on SEC.gov

Bilitz Benjamin M

CAO and Controller

Award

Date

Feb 20

Shares

937

Price

Value

View Form 4 on SEC.gov

Bilitz Benjamin M

CAO and Controller

Award

Date

Feb 20

Shares

1,590.022

Price

Value

View Form 4 on SEC.gov

Bilitz Benjamin M

CAO and Controller

Other

Date

Feb 20

Shares

1,339

Price

$61.62

Value

$83K

View Form 4 on SEC.gov

DURIAN ROBERT J

EVP and CFO

Award

Date

Feb 20

Shares

6,532

Price

Value

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 2

Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About LNT insider trading

LNT insider trades

Alliant Energy Corporation (LNT) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Smyth Antonio P (EVP), Barton Lisa M (President and CEO · Director), de Leon David A (SVP). Over the past 12 months, 5 insiders have filed transactions with the SEC. LNT insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Alliant Energy Corporation's institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic
acquisitionOrDisposition field:
A = Acquisition (buy) · D = Disposition (sell)
RSU vesting (M-Exempt) excluded from sentiment
Form 4SEC filing required within 2 business days of any insider transaction
10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot
Open MktDirect purchase or sale on the open market (excludes awards, options)

Frequently asked questions

LNT insider trading · 5 questions

The insiders of Alliant Energy Corporation (LNT) include executives and directors such as Smyth Antonio P (EVP), Barton Lisa M (President and CEO · Director), de Leon David A (SVP), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

LNT board member insider tradingwho are LNT insidersLNT insider rosterAlliant Energy Corporation executives insider activity

Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026