ALLIANT ENERGY CORP
Total Trades
6
Buys
3
Sells
1
Largest Trade
N/A
Insiders
4
Institutional Funds
725
Inst. Value
$1M+
Activist Filings
9
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Barton Lisa M | President and CEO | GRANT | N/A | 23K | — | Feb 21, 2024 |
| Barton Lisa M | President and CEO | BUY | $50K–$100K | 1K | $48.56 | Feb 21, 2024 |
| Sundararajan Raja | Executive Vice Pre… | GRANT | N/A | 5K | — | Feb 21, 2024 |
| Sundararajan Raja | Executive Vice Pre… | BUY | $15K–$50K | 500 | $48.26 | Feb 21, 2024 |
| Falotico Nancy Joy | Director | BUY | $50K–$100K | 1K | $61.00 | Jun 13, 2022 |
| GALLEGOS JAMES H | EVP | SELL | $500K+ | 10K | $58.04 | Mar 1, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 725 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 16.9M | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 8.2M | $1M+ | SH |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 6.4M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 6.3M | $1M+ | SH |
| Pictet Asset Management Holding SA | 4.1M | $1M+ | SH |
| COHEN & STEERS, INC. | 3.6M | $1M+ | SH |
| MAIRS & POWER INC | 3.0M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.3M | $1M+ | SH |
| Magellan Asset Management Ltd | 2.2M | $1M+ | SH |
| REAVES W H & CO INC | 2.0M | $1M+ | SH |
| JOHNSON INVESTMENT COUNSEL INC | 2.0M | $1M+ | SH |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | 1.9M | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 1.8M | $1M+ | SH |
| Nuveen, LLC | 1.7M | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 1.5M | $1M+ | SH |
| Neuberger Berman Group LLC | 1.5M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.1M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 1.1M | $1M+ | SH |
| Point72 Asset Management, L.P. | 1.1M | $1M+ | SH |
| TORONTO DOMINION BANK | 890K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
STATE STREET CORPORATION 04-2456637
SC 13G/A · Oct 16, 2024
6.3%
16.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
12.6%
32.1M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Jan 30, 2024
5.3%
0 shares
SC 13G/A · Jan 24, 2024
9.1%
23.1M shares
SC 13G/A · Jan 27, 2023
9.0%
22.7M shares
SC 13G/A · Jan 25, 2023
9.0%
22.7M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Feb 10, 2022
5.1%
0 shares
SC 13G/A · Jan 27, 2022
10.9%
27.3M shares
SC 13G/A · Jan 25, 2022
10.9%
27.3M shares