ALLIANT ENERGY CORP

For the period ended Jun 30, 2026. Filed Jul 31, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Jul 31, 2026

LNT$73.24-0.3%Stored close · as of Nov 10, 2026

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Contents

Wisconsin Power and Light Company

For the Three Months · For the Six Months
	Ended June 30,		Ended June 30,
	2026	2025	2026	2025
(in millions)
Revenues:
Electric utility	$430	$433	$881	$855
Gas utility	39	36	187	158
Other	1	—	2	1
Total revenues	470	469	1,070	1,014
Operating expenses:
Electric production fuel and purchased power	87	110	191	218
Electric transmission service	57	51	112	101
Cost of gas sold	15	13	114	86
Other operation and maintenance	87	72	169	137
Depreciation and amortization	98	90	198	183
Taxes other than income taxes	16	15	31	29
Total operating expenses	360	351	815	754
Operating income	110	118	255	260
Other (income) and deductions:
Interest expense	49	43	97	86
Allowance for funds used during construction	(10)	(10)	(21)	(19)
Other	(1)	3	(1)	5
Total other (income) and deductions	38	36	75	72
Income before income taxes	72	82	180	188
Income tax benefit	(6)	(5)	(15)	(10)
Net income	$78	$87	$195	$198

Earnings per share data is not disclosed given Alliant Energy Corporation is the sole shareowner of all shares of WPL’s common stock outstanding during the periods presented.

	June 30,2026	December 31,2025
(in millions, except pershare and share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$12	$37
Accounts receivable, less allowance for expected credit losses	247	273
Production fuel, at weighted average cost	35	28
Gas stored underground, at weighted average cost	18	25
Materials and supplies, at weighted average cost	88	81
Regulatory assets	107	96
Prepaid gross receipts tax	55	52
Income taxes receivable	45	1
Other	54	58
Total current assets	661	651
Property, plant and equipment, net	9,729	9,363
Other assets:
Regulatory assets	557	562
Deferred charges and other	99	79
Total other assets	656	641
Total assets	$11,046	$10,655

LIABILITIES AND EQUITY
Current liabilities:
Commercial paper	$83	$—
Accounts payable	258	197
Accrued interest	45	46
Regulatory liabilities	46	47
Other	105	105
Total current liabilities	537	395
Long-term debt, net	3,671	3,669
Other liabilities:
Deferred tax liabilities	881	861
Regulatory liabilities	532	568
Pension and other benefit obligations	68	75
Other	796	712
Total other liabilities	2,277	2,216
Commitments and contingencies (Note 12)
Equity:
Wisconsin Power and Light Company common equity:
Common stock - $5 par value - 18,000,000 shares authorized; 13,236,601 shares outstanding	66	66
Additional paid-in capital	2,713	2,613
Retained earnings	1,782	1,696
Total Wisconsin Power and Light Company common equity	4,561	4,375
Total liabilities and equity	$11,046	$10,655

	For the Six Months
	Ended June 30,
	2026	2025
(in millions)
Cash flows from operating activities:
Net income	$195	$198
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	198	183
Deferred tax benefit and tax credits	(25)	(43)
Other	3	(4)
Other changes in assets and liabilities:
Accounts receivable	45	(33)
Income taxes receivable	(44)	17
Regulatory liabilities	1	65
Other (a)	(18)	(46)
Net cash flows from operating activities	355	337
Cash flows used for investing activities:
Construction and acquisition expenditures	(422)	(348)
Other	(29)	(14)
Net cash flows used for investing activities	(451)	(362)
Cash flows from (used for) financing activities:
Common stock dividends	(109)	(119)
Capital contributions from parent	100	—
Net change in commercial paper	83	109
Other	(3)	(6)
Net cash flows from (used for) financing activities	71	(16)
Net decrease in cash, cash equivalents and restricted cash	(25)	(41)
Cash, cash equivalents and restricted cash at beginning of period	37	51
Cash, cash equivalents and restricted cash at end of period	$12	$10
Supplemental cash flows information:
Cash (paid) received during the period for:
Interest	($97)	($88)
Income taxes, net (a)	($19)	$8
Significant non-cash investing and financing activities:
Accrued capital expenditures	$129	$48

(a)2026 and 2025 include $44 million and $24 million, respectively, of proceeds from renewable tax credits transferred to other corporate taxpayers.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.