Latest Period
Q1 2026
Security Snapshot
ALLIANT ENERGY CORP - COM (LNT) Institutional Ownership
CUSIP: 018802108
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
856
Shares (Excl. Options)
239,009,640
Price
$71.76
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- Security type / class
- Equity / COM
- Symbol
- LNT on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 239,009,640
- Total 13F value
- $17,142,570,066
- Portfolio coverage rank
- 0.01%
- Share change
- +8,267,682
- Value change
- +$599,379,675
- Number of holders
- 856
- SEC-reported price per share
- $75.79
- Insider filing price
- $75.79
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- LNT - ALLIANT ENERGY CORP - COM is tracked under CUSIP 018802108.
- 856 institutions reported positions in Q1 2026.
- Schedule 13D/13G significant owner rows are not currently available.
Change
- Holder count moved from 856 to 326 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $17,142,570,066 to $1,212,468,043.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 856 institutions filings for Q1 2026.
Security key
018802108
Latest holder period
Q1 2026
13F holders
856
13D/G owners
0
CIK / CUSIP context first
Open Q1 2026 holders
LNT full holder history
ALLIANT ENERGY CORP SEC filings
ALLIANT ENERGY CORP company facts
ALLIANT ENERGY CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 018802108:
As of 31 Mar 2026, 856 institutional investors reported holding 239,009,640 shares of ALLIANT ENERGY CORP - COM (LNT).
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q1 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 15,920,978 | $1,212,468,043 | -$23,762,045 | $76.29 | 326 |
| 2026 Q1 | 239,009,640 | $17,142,570,066 | +$599,379,675 | $71.76 | 856 |
| 2025 Q4 | 231,098,794 | $15,021,237,942 | +$531,426,479 | $65.01 | 833 |
| 2025 Q3 | 222,691,445 | $15,007,064,597 | +$642,238,366 | $67.41 | 786 |
| 2025 Q2 | 213,350,581 | $12,895,137,316 | +$281,029,932 | $60.47 | 769 |
| 2025 Q1 | 208,819,935 | $13,423,860,951 | -$146,017,993 | $64.35 | 766 |
| 2024 Q4 | 213,565,219 | $12,628,344,547 | +$400,363,611 | $59.14 | 712 |
| 2024 Q3 | 206,287,416 | $12,518,860,715 | +$153,435,697 | $60.69 | 674 |
| 2024 Q2 | 204,685,404 | $10,417,496,303 | +$53,362,590 | $50.90 | 652 |
| 2024 Q1 | 203,645,373 | $10,260,375,517 | -$25,284,962 | $50.40 | 626 |
| 2023 Q4 | 203,987,472 | $10,463,168,169 | +$179,035,035 | $51.30 | 649 |
| 2023 Q3 | 200,372,379 | $9,708,737,061 | +$201,611,589 | $48.45 | 608 |
| 2023 Q2 | 196,096,013 | $10,289,238,901 | +$167,558,111 | $52.48 | 628 |
| 2023 Q1 | 192,985,507 | $10,304,280,921 | +$154,270,504 | $53.40 | 632 |
| 2022 Q4 | 190,205,326 | $10,500,662,225 | -$19,308,649 | $55.21 | 655 |
| 2022 Q3 | 190,436,751 | $10,093,451,854 | +$234,982,612 | $52.99 | 616 |
| 2022 Q2 | 185,745,010 | $10,882,972,486 | -$88,037,929 | $58.61 | 647 |
| 2022 Q1 | 188,349,950 | $11,756,670,774 | +$118,085,044 | $62.48 | 624 |
| 2021 Q4 | 186,536,788 | $11,459,667,194 | -$74,829,877 | $61.47 | 605 |
| 2021 Q3 | 187,901,370 | $10,516,687,204 | -$71,378,977 | $55.98 | 571 |
| 2021 Q2 | 189,761,774 | $10,578,819,642 | +$85,469,768 | $55.76 | 563 |
| 2021 Q1 | 188,545,390 | $10,197,626,737 | +$365,566,898 | $54.16 | 538 |
| 2020 Q4 | 181,924,843 | $9,367,335,261 | -$35,775,485 | $51.53 | 567 |
| 2020 Q3 | 182,169,273 | $9,405,415,184 | -$102,118,098 | $51.65 | 547 |
| 2020 Q2 | 184,027,428 | $8,821,081,675 | +$33,790,773 | $47.84 | 525 |