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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Alliant Energy Corporation

For the Three Months · For the Six Months
	Ended June 30,		Ended June 30,
	2026	2025	2026	2025
(in millions, except per share amounts)
Revenues:
Electric utility	$861	$851	$1,748	$1,703
Gas utility	82	76	353	316
Other utility	2	11	5	25
Non-utility	26	23	49	44
Total revenues	971	961	2,155	2,088
Operating expenses:
Electric production fuel and purchased power	132	150	301	325
Electric transmission service	155	151	314	308
Cost of gas sold	37	30	210	167
Other operation and maintenance	209	168	390	327
Depreciation and amortization	220	208	442	420
Taxes other than income taxes	33	31	64	62
Total operating expenses	786	738	1,721	1,609
Operating income	185	223	434	479
Other (income) and deductions:
Interest expense	143	124	285	243
Equity income from unconsolidated investments, net	(43)	(10)	(65)	(23)
Allowance for funds used during construction	(31)	(23)	(61)	(41)
Other	(2)	1	(5)	4
Total other (income) and deductions	67	92	154	183
Income before income taxes	118	131	280	296
Income tax benefit	(52)	(43)	(114)	(91)
Net income attributable to Alliant Energy common shareowners	$170	$174	$394	$387
Weighted average number of common shares outstanding:
Basic	258.5	256.9	257.9	256.8
Diluted	260.9	257.3	259.9	257.3
Earnings per weighted average common share attributable to Alliant Energy common shareowners:
Basic	$0.66	$0.68	$1.53	$1.51
Diluted	$0.65	$0.68	$1.52	$1.50

	June 30,2026	December 31,2025
(in millions, except pershare and share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$25	$556
Accounts receivable, less allowance for expected credit losses	381	476
Production fuel, at weighted average cost	60	46
Gas stored underground, at weighted average cost	30	49
Materials and supplies, at weighted average cost	208	193
Regulatory assets	172	155
Income taxes receivable	40	12
Other	284	210
Total current assets	1,200	1,697
Property, plant and equipment, net	21,058	20,344
Investments:
ATC Holdings	501	463
Other	255	231
Total investments	756	694
Other assets:
Regulatory assets	2,139	2,119
Deferred charges and other	165	137
Total other assets	2,304	2,256
Total assets	$25,318	$24,991

LIABILITIES AND EQUITY
Current liabilities:
Current maturities of long-term debt	$374	$1,074
Commercial paper	708	88
Other short-term borrowings	400	—
Accounts payable	628	498
Accrued interest	116	124
Regulatory liabilities	80	88
Other	268	251
Total current liabilities	2,574	2,123
Long-term debt, net (excluding current portion)	10,636	10,954
Other liabilities:
Deferred tax liabilities	2,360	2,310
Regulatory liabilities	1,049	1,113
Pension and other benefit obligations	157	173
Other	1,013	984
Total other liabilities	4,579	4,580
Commitments and contingencies (Note 12)
Equity:
Alliant Energy Corporation common equity:
Common stock - $0.01 par value - 480,000,000 shares authorized; 259,284,699 and 257,137,261 shares outstanding	3	3
Additional paid-in capital	3,174	3,101
Retained earnings	4,363	4,243
Accumulated other comprehensive income	3	1
Shares in deferred compensation trust - 351,469 and 367,338 shares at a weighted average cost of $40.46 and $39.05 per share	(14)	(14)
Total Alliant Energy Corporation common equity	7,529	7,334
Total liabilities and equity	$25,318	$24,991

	For the Six Months
	Ended June 30,
	2026	2025
(in millions)
Cash flows from operating activities:
Net income	$394	$387
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	442	420
Deferred tax benefit and tax credits	(94)	(100)
Equity income from unconsolidated investments, net	(65)	(23)
Other	34	22
Other changes in assets and liabilities:
Accounts receivable	(183)	(289)
Derivative assets	(55)	(29)
Regulatory liabilities	1	71
Deferred income taxes (a)	87	86
Other	(80)	(53)
Net cash flows from operating activities	481	492
Cash flows used for investing activities:
Construction and acquisition expenditures:
Utility business	(913)	(976)
Other	(109)	(89)
Cash receipts on sold receivables	264	198
Other	(37)	(27)
Net cash flows used for investing activities	(795)	(894)
Cash flows from (used for) financing activities:
Common stock dividends	(274)	(261)
Proceeds from issuance of common stock, net	70	12
Proceeds from issuance of long-term debt	—	1,162
Proceeds from issuance of other short-term borrowings	400	—
Payments to retire long-term debt	(1,075)	—
Net change in commercial paper	670	(266)
Other	(8)	3
Net cash flows from (used for) financing activities	(217)	650
Net increase (decrease) in cash, cash equivalents and restricted cash	(531)	248
Cash, cash equivalents and restricted cash at beginning of period	556	81
Cash, cash equivalents and restricted cash at end of period	$25	$329
Supplemental cash flows information:
Cash (paid) received during the period for:
Interest	($293)	($239)
Income taxes, net (a)	$96	$91
Significant non-cash investing and financing activities:
Accrued capital expenditures	$279	$204
Beneficial interest obtained in exchange for securitized accounts receivable	$95	$235

(a)2026 and 2025 include $102 million and $97 million, respectively, of proceeds from renewable tax credits transferred to other corporate taxpayers.

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