Alliant Energy Corporation (LNT) has 20 known insider and institutional holders on record. The largest holder is LARSEN JOHN O with 289,939 shares. Other notable holders include KAMPLING PATRICIA L and DURIAN ROBERT J.
Over the last 12 months, insiders have made 38 transactions in LNT stock — 29 buys (valued at RSU Award) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
LNT Insider Ownership
Top Holder
LARSEN JOHN O
289,939 shares
Buys (12 mo)
29
$0.00 value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Larsen John O |
Director |
289,939 |
2025-02-24 |
|
| 2 |
Kampling Patricia L |
Chairman and CEO |
200,365 |
2019-06-04 |
|
| 3 |
Durian Robert J |
EVP and CFO |
157,126 |
2026-02-23 |
|
| 4 |
Harvey William D |
Chairman and CEO |
143,385 |
2012-02-29 |
|
| 5 |
Barton Lisa M |
President and CEO |
106,519 |
2026-02-23 |
|
| 6 |
Bennett Michael L |
Director |
92,330 |
2017-10-16 |
|
| 7 |
Gallegos James H |
EVP, Gen Cnsl and Corp Sec |
67,448 |
2022-03-01 |
|
| 8 |
Oestreich Dean C |
Director |
59,450 |
2016-10-17 |
|
| 9 |
Sanders Carol P |
Director |
52,779 |
2016-10-17 |
|
| 10 |
De Leon David A |
Senior Vice President |
47,708 |
2026-02-23 |
|
| 11 |
Allen Patrick E |
Director |
44,666 |
2026-01-12 |
|
| 12 |
Kouba Terry L |
Senior Vice President |
42,849 |
2024-02-20 |
|
| 13 |
Otoole Thomas F |
Director |
34,957 |
2023-10-17 |
|
| 14 |
Sundararajan Raja |
Executive Vice President |
33,050 |
2026-02-23 |
|
| 15 |
Newport Roger K |
Director |
30,447 |
2026-01-12 |
|
| 16 |
Perdue David A |
Director |
30,207 |
2014-11-18 |
|
| 17 |
Whiting Susan D |
Director |
24,915 |
2023-07-13 |
|
| 18 |
Garcia Michael Dennis |
Director |
24,701 |
2026-01-12 |
|
| 19 |
Newhall Ann K |
Director |
23,119 |
2015-08-18 |
|
| 20 |
Smyth Antonio P |
Executive Vice President |
21,855 |
2026-02-23 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-19 |
Valcq Rebecca C. |
Vice President |
Tax Withholding of RSU |
438 |
$70.01 |
$30.66K |
| 2026-02-23 |
Asthana Manu |
Director |
Unknown |
- |
- |
- |
| 2026-02-19 |
Valcq Rebecca C. |
Vice President |
RSU Award |
1,004 |
- |
- |
| 2026-02-19 |
Syse Dylan |
CAO and Controller |
RSU Award |
1,063 |
- |
- |
| 2026-02-19 |
Farlinger Mayuri |
Vice President |
Tax Withholding of RSU |
1,179 |
$70.01 |
$82.54K |
| 2026-02-19 |
Smyth Antonio P |
Executive Vice President |
Tax Withholding of RSU |
6,226 |
$70.01 |
$435.88K |
| 2026-02-19 |
Sundararajan Raja |
Executive Vice President |
Tax Withholding of RSU |
11,324 |
$70.01 |
$792.79K |
| 2026-02-19 |
De Leon David A |
Senior Vice President |
Tax Withholding of RSU |
5,207 |
$70.01 |
$364.54K |
| 2026-02-19 |
Barton Lisa M |
President and CEO |
RSU Award |
47,533 |
- |
- |
| 2026-02-19 |
Durian Robert J |
EVP and CFO |
Tax Withholding of RSU |
16,630 |
$70.01 |
$1.16M |
| 2026-01-05 |
Valcq Rebecca C. |
Vice President |
Unknown |
- |
- |
- |
| 2026-01-09 |
Raymond Christie |
Director |
RSU Award |
1,173 |
- |
- |
| 2026-01-09 |
Falotico Nancy Joy |
Director |
RSU Award |
875 |
- |
- |
| 2026-01-09 |
Cortina Ignacio A |
Director |
RSU Award |
750 |
- |
- |
| 2026-01-09 |
Garcia Michael Dennis |
Director |
RSU Award |
984 |
- |
- |
| 2026-01-09 |
Cox Stephanie |
Director |
RSU Award |
615 |
- |
- |
| 2026-01-09 |
Newport Roger K |
Director |
RSU Award |
865 |
- |
- |
| 2026-01-09 |
Allen Patrick E |
Director |
RSU Award |
577 |
- |
- |
| 2025-10-10 |
Raymond Christie |
Director |
RSU Award |
1,089 |
- |
- |
| 2025-10-10 |
Falotico Nancy Joy |
Director |
RSU Award |
872 |
- |
- |
| 2025-10-10 |
Cortina Ignacio A |
Director |
RSU Award |
696 |
- |
- |
| 2025-10-10 |
Garcia Michael Dennis |
Director |
RSU Award |
915 |
- |
- |
| 2025-10-10 |
Cox Stephanie |
Director |
RSU Award |
1,070 |
- |
- |
| 2025-10-10 |
Newport Roger K |
Director |
RSU Award |
803 |
- |
- |
| 2025-07-11 |
Raymond Christie |
Director |
RSU Award |
1,188 |
- |
- |
