LNT

Alliant Energy Corp

A regulated utility holding company that delivers electricity and natural gas to roughly a million and a half homes and businesses across Iowa and Wisconsin through its two main units, Interstate Power and Light and Wisconsin Power and Light. The company was born in 1998 when three regional utilities merged, and it took the name "Alliant" the next year as a play on "alliance" — a nod to the three-way partnership that created it. Its roots stretch back to utilities incorporated in the 1920s, and it also holds a stake in a transmission-only company and a wind farm in Oklahoma.

CUSIP: 018802108UtilitiesUS2 holders

Ownership Activity Financials Filings

Insiders

Ranked by how much each holding moved in the last year

Durian Robert JEVP and CFO · 3 transactions

173.4K+22.9%

Granted 33.8K

Barton Lisa MPresident and CEO, Director · 3 transactions

106.5K+84.6%

Granted 77.1K

de Leon David ASenior Vice President · 3 transactions

50.0K+16.3%

Granted 10.9K

Sundararajan RajaExecutive Vice President · 3 transactions

44.4K+171.3%

Granted 27.6K

Smyth Antonio PExecutive Vice President · 4 transactions

20.7K+112.6%

Granted 18.4K

Farlinger MayuriVice President · 3 transactions

20.2K+28.7%

Granted 4.1K

Syse DylanCAO and Controller · 3 transactions

3.8K+42.3%

Granted 1.8K

Valcq Rebecca C.Vice President · 1 transaction

2.3K—

Insider	Stake change	Holds now	Granted / vested	Bought	Sold
Durian Robert JEVP and CFO · 3 transactions	+22.9%	173.4K	33.8K	—	—
Barton Lisa MPresident and CEO, Director · 3 transactions	+84.6%	106.5K	77.1K	—	—
de Leon David ASenior Vice President · 3 transactions	+16.3%	50.0K	10.9K	—	—
Sundararajan RajaExecutive Vice President · 3 transactions	+171.3%	44.4K	27.6K	—	—
Smyth Antonio PExecutive Vice President · 4 transactions	+112.6%	20.7K	18.4K	—	—
Farlinger MayuriVice President · 3 transactions	+28.7%	20.2K	4.1K	—	—
Syse DylanCAO and Controller · 3 transactions	+42.3%	3.8K	1.8K	—	—
Valcq Rebecca C.Vice President · 1 transaction	—	2.3K	—	—	—

Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.