Security
Alliant Energy Corp. · COM
15 owners 1 new max 2.1% (Mairs & Power Inc.)
owners
15
max %
2.1%
tracked value
$2.8B
qoq
N 1
A 9
R 4
holders
sorted by % of portfolio · long equity only
| manager | % port | activity | shares | value | history |
|---|---|---|---|---|---|
| Mairs & Power Inc. 2026 Q1 | 2.1% | Reduce +0.27 pp | 2,889,060 | $207M | hist |
| Steve Cohen - Point72 Asset Management, L.P. 2026 Q1 | 0.1% | Add +0.04 pp | 1,243,581 | $89M | hist |
| Renaissance Technologies LLC 2026 Q1 | 0.1% | Add +0.04 pp | 710,700 | $51M | hist |
| Joel Greenblatt - Gotham Asset Management, LLC 2026 Q1 | 0.1% | Add 0.00 pp | 373,268 | $27M | hist |
| Marshall Wace - Marshall Wace, LLP 2026 Q1 | 0.1% | Add +0.05 pp | 845,825 | $61M | hist |
| Vanguard Group Inc. 2025 Q4 stale | 0.0% | Add 0.00 pp | 33,785,294 | $2.2B | hist |
| D. E. Shaw & Co., Inc. 2026 Q1 | 0.0% | Add +0.01 pp | 604,187 | $43M | hist |
| Natixis Advisors, LLC 2026 Q1 | 0.0% | Add 0.00 pp | 269,328 | $19M | hist |
| Two Sigma Investments, LP 2025 Q4 stale | 0.0% | Exit -0.02 pp | 240,943 | $16M | hist |
| Israel Englander - Millennium Management LLC 2026 Q1 | 0.0% | Add 0.00 pp | 203,381 | $15M | hist |
| George Soros - Soros Fund Management LLC 2026 Q1 | 0.0% | New 0.0% | 18,452 | $1M | hist |
| Ken Griffin - Citadel Advisors LLC 2026 Q1 | 0.0% | Reduce 0.00 pp | 289,946 | $21M | hist |
| Cliff Asness - Aqr Capital Management LLC 2026 Q1 | 0.0% | Add 0.00 pp | 114,474 | $8M | hist |
| Dmitry Balyasny - Balyasny Asset Management L.P. 2026 Q1 | 0.0% | Reduce 0.00 pp | 3,837 | $275 | hist |
| Ancora Advisors LLC 2026 Q1 | 0.0% | Reduce 0.00 pp | 416 | $30 | hist |
No managers match this filter.
financials
US-GAAP annual · as tagged in Form 10-K · fiscal years · values link to the SEC filing
Income statement
Balance sheet
ownership over time
filing count by report period · click a bar for that quarter’s holders