According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Alliant Energy are Director John O Larsen (289.94K shares), Evp And Cfo Robert J Durian (135.64K shares), President And Ceo Lisa M Barton (57.71K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| John O Larsen | 289,939 | 24 Feb, 2025 | |
| Robert J Durian | Evp And Cfo | 135,643 | 24 Feb, 2025 |
| Lisa M Barton | President And Ceo | 57,710 | 24 Feb, 2025 |
| James H Gallegos | Evp And Gen Cnsl And Corp Sec | 57,448 | 01 Mar, 2022 |
| Terry L Kouba | Senior Vice President | 42,849 | 20 Feb, 2024 |
| Leon David A De | Senior Vice President | 40,827 | 24 Feb, 2025 |
| Benjamin M Bilitz | Cao And Controller | 19,420 | 24 Feb, 2025 |
| Raja Sundararajan | Executive Vice President | 16,358 | 24 Feb, 2025 |
| Antonio P Smyth | Executive Vice President | 9,727 | 16 Apr, 2025 |
| Mayuri Farlinger | Vice President | 6,406 | 24 Feb, 2025 |
| Michael Luhrs | Senior Vice President | 4,037 | 27 Feb, 2023 |
| Nancy Joy Falotico | 1,210 | 13 Jun, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 15 Apr, 2025 | Antonio P Smyth | Common Stock | A | 9,727 | $0.00 | 9,727 | D | A |
| 20 Feb, 2025 | John O Larsen | Common Stock | A | 32,199 | $0.00 | 314,400 | D | A |
| 20 Feb, 2025 | John O Larsen | Common Stock | D | 24,461 | $61.62 | 289,939 | D | F |
| 20 Feb, 2025 | Robert J Durian | Common Stock | D | 7,401 | $61.62 | 135,643 | D | F |
| 20 Feb, 2025 | Robert J Durian | - | - | 143,044 | D | |||
| 20 Feb, 2025 | Robert J Durian | - | - | 135,643 | D | |||
| 20 Feb, 2025 | Robert J Durian | Common Stock | A | 9,472 | $0.00 | 136,512 | D | A |
| 20 Feb, 2025 | Robert J Durian | Common Stock | A | 6,532 | $0.00 | 143,044 | D | A |
| 20 Feb, 2025 | Robert J Durian | - | - | 136,512 | D | |||
| 20 Feb, 2025 | Lisa M Barton | Common Stock | A | 21,266 | $0.00 | 57,710 | D | A |
| 20 Feb, 2025 | Benjamin M Bilitz | Common Stock | A | 1,590 | $0.00 | 19,822 | D | A |
| 20 Feb, 2025 | Benjamin M Bilitz | Common Stock | D | 1,339 | $61.62 | 19,420 | D | F |
| 20 Feb, 2025 | Benjamin M Bilitz | Common Stock | A | 937 | $0.00 | 20,759 | D | A |
| 20 Feb, 2025 | Leon David A De | Common Stock | A | 3,256 | $0.00 | 40,855 | D | A |
| 20 Feb, 2025 | Leon David A De | Common Stock | D | 2,560 | $61.62 | 40,827 | D | F |
| 20 Feb, 2025 | Leon David A De | Common Stock | A | 2,532 | $0.00 | 43,387 | D | A |
| 20 Feb, 2025 | Raja Sundararajan | Common Stock | A | 5,802 | $0.00 | 16,358 | D | A |
| 20 Feb, 2025 | Mayuri Farlinger | Common Stock | A | 1,022 | $0.00 | 5,810 | D | A |
| 20 Feb, 2025 | Mayuri Farlinger | Common Stock | A | 1,156 | $0.00 | 6,966 | D | A |
| 20 Feb, 2025 | Mayuri Farlinger | Common Stock | D | 560 | $61.62 | 6,406 | D | F |