Alliant Energy Corp
LNT- Exchange
- Nasdaq
- Industry
- Electric & Other Services Combined
- SEC CIK
- 0000352541
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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $6.65 in total
- 1
- 13F holdersQ2 2026, +31 vs. previous quarter
- 883
- 13F valueReported value at the end of Q2 2026
- $19.3B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding LNT, Q2 2026
No superinvestor reported holding LNT at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Alliant Energy Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026 (view filing)4:16 PM ET | Aug 10 | 2 days | Durian Robert JEVP and CFO | SSale | −0.1 | $68.56 | −$6.65 | 0.0%158.1K after | |
| Feb 20, 2024 (view filing) | Feb 20 | Same day | Barton Lisa MPresident and CEO | PPurchase | +1.10K | $48.56 | +$53.4K | +3.1%36.4K after | |
| Feb 20, 2024 (view filing) | Feb 20 | Same day | Sundararajan RajaExecutive Vice President | PPurchase | +500 | $48.26 | +$24.1K | +5.0%10.6K after | |
| Jun 13, 2022 (view filing) | Jun 9 | 4 days | Falotico Nancy JoyDirector | PPurchase | +1.20K | $61.00 | +$73.2K | +12,000.0%1.21K after | |
| Mar 1, 2022 (view filing) | Feb 28 | 1 day | Gallegos James HEVP, Gen Cnsl and Corp Sec | SSale | −10.0K | $58.04 | −$580.4K | −14.8%57.4K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Alliant Energy Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 24,986,672 | $1.91B | 0.03% | +487,232+2.0% | Added |
| State Street Corp | 17,571,998 | $1.34B | 0.04% | +561,347+3.3% | Added |
| Vanguard Capital Management LLC | 16,861,714 | $1.29B | 0.03% | +162,252+1.0% | Added |
| Vanguard Portfolio Management LLC | 14,386,177 | $1.10B | 0.05% | −208,829−1.4% | Reduced |
| Price T Rowe Associates Inc | 11,515,298 | $878.5M | 0.09% | +904,652+8.5% | Added |
| Jupiter Topco LLC | 10,977,426 | $837.5M | 0.34% | +10,977,426 | New |
| Nuveen, LLC | 7,890,946 | $602.0M | 0.14% | +450,560+6.1% | Added |
| Geode Capital Management, LLC | 7,407,445 | $563.0M | 0.03% | +149,419+2.1% | Added |
| Massachusetts Financial Services Co | 6,936,512 | $533.8M | 0.17% | −110,725−1.6% | Reduced |
| Victory Capital Management Inc | 6,442,409 | $491.5M | 0.28% | −796,455−11.0% | Reduced |