Ticker · CUSIP 018802108

LNT

ALLIANT ENERGY CORP

Utilities·Utilities - Regulated Electric

···Share

Holders (tracked)

Combined shares

11,525,709

Combined value

$749.29M

Last close

$72.83

Quarter

2025Q4

Price is +12.0% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$72.83+13.93 (+23.64%)H $73.72 · L $57.44 · Avg Vol 2.1M

Congress buyCongress sell

Tracked holders · last 8 quarters

-2 vs previous quarter over the last 8.

SEC event timeline

17 events

Ken Griffin (Citadel Advisors) trimmed2026-02-17
−3,635,538 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+451,500 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+228,493 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−1,222,300 shares · 2025Q4
Position
Steve Cohen (Point72) trimmed2026-02-17
−21,823 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+7,460,117 shares · 2025Q4
Position
Wellington Management exited2026-02-17
−82,537 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+2,564 shares · 2025Q4
Position
Renaissance Technologies added2026-02-12
+161,000 shares · 2025Q4
Position
AQR Capital Management trimmed2025-11-14
−3,561 shares · 2025Q3
Position
Steve Cohen (Point72) added2025-11-14
+841,451 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+94,550 shares · 2025Q3
Position
Two Sigma Investments trimmed2025-11-14
−12,501 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+563,605 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−102,065 shares · 2025Q3
Position
D.E. Shaw & Co. opened position2025-11-14
+84,960 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+98,579 shares · 2025Q3
Position

Insider activity

Last 30 days

Net (open-market)

Buys

0 · $0

Sells

0 · $0

Unique insiders

Date	Insider	Code	Shares	Price	Value
04-15	Smyth Antonio P Executive Vice President · Officer	F	1,259	$72.18	$90.9K

View full insider history for LNT →

Follow-the-investor returns

If you'd copied each holder of LNT…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Mario Gabelli (GAMCO)	2016Q1	$57.37	+27.0%	$922K
AQR Capital Management	2016Q1	$59.54	+22.3%	$6.3M
Izzy Englander (Millennium Mgmt)	2016Q2	$60.74	+19.9%	$5.6M
Renaissance Technologies	2016Q1	$61.26	+18.9%	$30.7M
T. Rowe Price	2016Q1	$64.46	+13.0%	$611.3M
Steve Cohen (Point72)	2019Q2	$64.58	+12.8%	$79.4M
D.E. Shaw & Co.	2016Q1	$64.62	+12.7%	$39.1M
Two Sigma Investments	2017Q2	$64.93	+12.2%	$17.5M
Ken Griffin (Citadel Advisors)	2016Q1	$65.03	+12.0%	$47.5M
Ken Griffin (Citadel Advisors)	2016Q1	$65.03	+12.0%	$47.5M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions0

—

Added to5

D.E. Shaw & Co.
+451,500
$29.4M
Two Sigma Investments
+228,493
$14.9M
Renaissance Technologies
+161,000
$10.5M
T. Rowe Price
+7,460,117
$485K
AQR Capital Management
+2,564
$167K

Trimmed3

Ken Griffin (Citadel Advisors)
−3,635,538
$236.3M
Izzy Englander (Millennium Mgmt)
−1,222,300
$79.5M
Steve Cohen (Point72)
−21,823
$1.4M

Exited1

Wellington Management
−82,537
$5.6M

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	12	28,900,337	$1.81B	—
2022Q2	14	25,145,283	$1.47B	+2
2022Q3	15	27,575,854	$1.46B	+1
2022Q4	15	26,491,983	$1.46B	—
2023Q1	15	27,414,692	$1.46B	—
2023Q2	13	26,633,859	$1.40B	-2
2023Q3	11	26,526,579	$1.29B	-2
2023Q4	9	24,670,174	$1.27B	-2
2024Q1	10	25,394,323	$1.28B	+1
2024Q2	13	27,163,962	$1.38B	+3
2024Q3	9	4,701,307	$285.3M	-4
2024Q4	9	2,299,722	$136.0M	—
2025Q1	14	1,556,713	$100.2M	+5
2025Q2	11	2,421,731	$146.4M	-3
2025Q3	12	8,182,733	$551.6M	+1
2025Q4	10	11,525,709	$749.3M	-2

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2025-08-13	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-08-04	Lisa McClain	Buy	$1K – $15K	PDF ↗

Who owns LNT

10 super-investors · 2025Q4

Tracked stake

11.53M

Combined value

$749M

% of shares outstanding

—

shares-out unknown

Quarter action mix

Added5Trim4Held1

#	Manager	Shares	Value	% of book	Last action
1	T. Rowe Price	8.39M	$546M	0.1%	Added+7.46M
2	Steve Cohen Point72	1.09M	$71M	0.1%	Trim−21.8K
3	Ken Griffin Citadel Advisors	652.6K	$42M	0.0%	Trim−3.64M
4	D.E. Shaw & Co.	536.5K	$35M	0.0%	Added+451.5K
5	Renaissance Technologies	421.4K	$27M	0.0%	Added+161.0K
6	Two Sigma Investments	240.9K	$16M	0.0%	Added+228.5K
7	AQR Capital Management	86.9K	$6M	0.0%	Added+2.6K
8	Izzy Englander Millennium Mgmt	76.5K	$5M	0.0%	Trim−1.22M
9	Ken Griffin Citadel Advisors	13.9K	$904K	0.0%	Trim−3.64M
10	Mario Gabelli GAMCO	12.7K	$823K	0.0%	Held

Recent moves

20 transactions

ADDTwo Sigma Investments
+228,493 · 2025Q4
ADDAQR Capital Management
+2,564 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−3,635,538 · 2025Q4
TRIMSteve Cohen (Point72)
−21,823 · 2025Q4
ADDT. Rowe Price
+7,460,117 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−1,222,300 · 2025Q4
SOLDWellington Management
−82,537 · 2025Q4
ADDD.E. Shaw & Co.
+451,500 · 2025Q4
ADDRenaissance Technologies
+161,000 · 2025Q4
ADDSteve Cohen (Point72)
+841,451 · 2025Q3
TRIMTwo Sigma Investments
−12,501 · 2025Q3
TRIMWellington Management
−102,065 · 2025Q3
NEWD.E. Shaw & Co.
+84,960 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+94,550 · 2025Q3
ADDT. Rowe Price
+563,605 · 2025Q3
TRIMAQR Capital Management
−3,561 · 2025Q3
ADDRenaissance Technologies
+98,579 · 2025Q3
NEWSteve Cohen (Point72)
+271,189 · 2025Q2
SOLDD.E. Shaw & Co.
−241,724 · 2025Q2
ADDIzzy Englander (Millennium Mgmt)
+1,145,397 · 2025Q2

Embed this chart

Paste this iframe anywhere to embed the live LNT chart.

<iframe src="https://openstocks.me/embed/stocks/LNT" width="100%" height="480" frameborder="0" loading="lazy" title="LNT chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>

Preview: https://openstocks.me/embed/stocks/LNT

Explore related topics