Common Equity

3 Months Ended

Mar. 31, 2020

COMMON EQUITY

Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:



Shares outstanding, January 1, 2020	245,022,800
Equity forward agreements	4,275,127
Shareowner Direct Plan	107,622
Equity-based compensation plans	98,205
Shares outstanding, March 31, 2020	249,503,754

Equity Forward Agreements - In November 2019, Alliant Energy entered into forward sale agreements with a counterparty in connection with a public offering of 4,275,127 shares of Alliant Energy common stock. The initial forward sale price of $52.235 per share was subject to daily adjustment based on a floating interest rate factor, and decreased by other fixed amounts specified in the forward sale agreements. In 2020, Alliant Energy settled $222 million under the forward sale agreements by delivering 4,275,127 shares of newly issued Alliant Energy common stock at a weighted average forward sale price of $51.98 per share. Alliant Energy used the net proceeds from the settlements for general corporate purposes.

Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):



Alliant Energy	Total Alliant Energy Common Equity
									Accumulated		Shares in			Cumulative
			Additional						Other		Deferred			Preferred
	Common		Paid-In			Retained			Comprehensive		Compensation			Stock		Total
	Stock		Capital			Earnings			Income (Loss)		Trust			of IPL		Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$2.5		$2,445.9			$2,765.4			$1.3		($10.0	)		$200.0		$5,405.1
Net income attributable to Alliant Energy common shareowners						170.0										170.0
Common stock dividends ($0.38 per share)						(93.0		)								(93.0		)
Equity forward settlements and Shareowner Direct Plan issuances			228.4													228.4
Equity-based compensation plans and other			(0.2		)						0.1					(0.1		)
Adoption of new accounting standard, net of tax (refer to Note 1(d))						(8.7		)								(8.7		)
Other comprehensive income, net of tax									0.7							0.7
Ending balance, March 31, 2020		$2.5		$2,674.1			$2,833.7			$2.0		($9.9	)		$200.0		$5,702.4
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$2.4		$2,045.5			$2,545.9			$1.7		($9.8	)		$200.0		$4,785.7
Net income attributable to Alliant Energy common shareowners						125.1										125.1
Common stock dividends ($0.355 per share)						(83.7		)								(83.7		)
Equity forward settlements and Shareowner Direct Plan issuances			54.6													54.6
Equity-based compensation plans and other			(0.1		)						0.1					—
Other comprehensive income, net of tax									0.7							0.7
Ending balance, March 31, 2019		$2.4		$2,100.0			$2,587.3			$2.4		($9.7	)		$200.0		$4,882.4



IPL	Total IPL Common Equity
			Additional					Cumulative
	Common		Paid-In		Retained			Preferred		Total
	Stock		Capital		Earnings			Stock		Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$33.4		$2,347.8		$890.6			$200.0		$3,471.8
Net income available for common stock					82.6					82.6
Common stock dividends					(59.0		)			(59.0		)
Capital contributions from parent			100.0							100.0
Ending balance, March 31, 2020		$33.4		$2,447.8		$914.2			$200.0		$3,595.4
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$33.4		$2,222.8		$774.5			$200.0		$3,230.7
Net income available for common stock					53.3					53.3
Common stock dividends					(42.0		)			(42.0		)
Capital contributions from parent			100.0							100.0
Ending balance, March 31, 2019		$33.4		$2,322.8		$785.8			$200.0		$3,342.0



WPL			Additional					Total
	Common		Paid-In		Retained			Common
	Stock		Capital		Earnings			Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$66.2		$1,434.0		$863.4			$2,363.6
Net income					89.6			89.6
Common stock dividends					(42.1		)	(42.1		)
Capital contributions from parent			25.0					25.0
Ending balance, March 31, 2020		$66.2		$1,459.0		$910.9			$2,436.1
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$66.2		$1,309.0		$774.3			$2,149.5
Net income					65.7			65.7
Common stock dividends					(36.0		)	(36.0		)
Ending balance, March 31, 2019		$66.2		$1,309.0		$804.0			$2,179.2

IPL [Member]

Common Equity [Line Items]

Common Equity

COMMON EQUITY

Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:



Shares outstanding, January 1, 2020	245,022,800
Equity forward agreements	4,275,127
Shareowner Direct Plan	107,622
Equity-based compensation plans	98,205
Shares outstanding, March 31, 2020	249,503,754

Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):



Alliant Energy	Total Alliant Energy Common Equity
									Accumulated		Shares in			Cumulative
			Additional						Other		Deferred			Preferred
	Common		Paid-In			Retained			Comprehensive		Compensation			Stock		Total
	Stock		Capital			Earnings			Income (Loss)		Trust			of IPL		Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$2.5		$2,445.9			$2,765.4			$1.3		($10.0	)		$200.0		$5,405.1
Net income attributable to Alliant Energy common shareowners						170.0										170.0
Common stock dividends ($0.38 per share)						(93.0		)								(93.0		)
Equity forward settlements and Shareowner Direct Plan issuances			228.4													228.4
Equity-based compensation plans and other			(0.2		)						0.1					(0.1		)
Adoption of new accounting standard, net of tax (refer to Note 1(d))						(8.7		)								(8.7		)
Other comprehensive income, net of tax									0.7							0.7
Ending balance, March 31, 2020		$2.5		$2,674.1			$2,833.7			$2.0		($9.9	)		$200.0		$5,702.4
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$2.4		$2,045.5			$2,545.9			$1.7		($9.8	)		$200.0		$4,785.7
Net income attributable to Alliant Energy common shareowners						125.1										125.1
Common stock dividends ($0.355 per share)						(83.7		)								(83.7		)
Equity forward settlements and Shareowner Direct Plan issuances			54.6													54.6
Equity-based compensation plans and other			(0.1		)						0.1					—
Other comprehensive income, net of tax									0.7							0.7
Ending balance, March 31, 2019		$2.4		$2,100.0			$2,587.3			$2.4		($9.7	)		$200.0		$4,882.4



IPL	Total IPL Common Equity
			Additional					Cumulative
	Common		Paid-In		Retained			Preferred		Total
	Stock		Capital		Earnings			Stock		Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$33.4		$2,347.8		$890.6			$200.0		$3,471.8
Net income available for common stock					82.6					82.6
Common stock dividends					(59.0		)			(59.0		)
Capital contributions from parent			100.0							100.0
Ending balance, March 31, 2020		$33.4		$2,447.8		$914.2			$200.0		$3,595.4
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$33.4		$2,222.8		$774.5			$200.0		$3,230.7
Net income available for common stock					53.3					53.3
Common stock dividends					(42.0		)			(42.0		)
Capital contributions from parent			100.0							100.0
Ending balance, March 31, 2019		$33.4		$2,322.8		$785.8			$200.0		$3,342.0



WPL			Additional					Total
	Common		Paid-In		Retained			Common
	Stock		Capital		Earnings			Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$66.2		$1,434.0		$863.4			$2,363.6
Net income					89.6			89.6
Common stock dividends					(42.1		)	(42.1		)
Capital contributions from parent			25.0					25.0
Ending balance, March 31, 2020		$66.2		$1,459.0		$910.9			$2,436.1
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$66.2		$1,309.0		$774.3			$2,149.5
Net income					65.7			65.7
Common stock dividends					(36.0		)	(36.0		)
Ending balance, March 31, 2019		$66.2		$1,309.0		$804.0			$2,179.2

WPL [Member]

Common Equity [Line Items]

Common Equity

COMMON EQUITY

Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:



Shares outstanding, January 1, 2020	245,022,800
Equity forward agreements	4,275,127
Shareowner Direct Plan	107,622
Equity-based compensation plans	98,205
Shares outstanding, March 31, 2020	249,503,754

Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):



Alliant Energy	Total Alliant Energy Common Equity
									Accumulated		Shares in			Cumulative
			Additional						Other		Deferred			Preferred
	Common		Paid-In			Retained			Comprehensive		Compensation			Stock		Total
	Stock		Capital			Earnings			Income (Loss)		Trust			of IPL		Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$2.5		$2,445.9			$2,765.4			$1.3		($10.0	)		$200.0		$5,405.1
Net income attributable to Alliant Energy common shareowners						170.0										170.0
Common stock dividends ($0.38 per share)						(93.0		)								(93.0		)
Equity forward settlements and Shareowner Direct Plan issuances			228.4													228.4
Equity-based compensation plans and other			(0.2		)						0.1					(0.1		)
Adoption of new accounting standard, net of tax (refer to Note 1(d))						(8.7		)								(8.7		)
Other comprehensive income, net of tax									0.7							0.7
Ending balance, March 31, 2020		$2.5		$2,674.1			$2,833.7			$2.0		($9.9	)		$200.0		$5,702.4
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$2.4		$2,045.5			$2,545.9			$1.7		($9.8	)		$200.0		$4,785.7
Net income attributable to Alliant Energy common shareowners						125.1										125.1
Common stock dividends ($0.355 per share)						(83.7		)								(83.7		)
Equity forward settlements and Shareowner Direct Plan issuances			54.6													54.6
Equity-based compensation plans and other			(0.1		)						0.1					—
Other comprehensive income, net of tax									0.7							0.7
Ending balance, March 31, 2019		$2.4		$2,100.0			$2,587.3			$2.4		($9.7	)		$200.0		$4,882.4



IPL	Total IPL Common Equity
			Additional					Cumulative
	Common		Paid-In		Retained			Preferred		Total
	Stock		Capital		Earnings			Stock		Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$33.4		$2,347.8		$890.6			$200.0		$3,471.8
Net income available for common stock					82.6					82.6
Common stock dividends					(59.0		)			(59.0		)
Capital contributions from parent			100.0							100.0
Ending balance, March 31, 2020		$33.4		$2,447.8		$914.2			$200.0		$3,595.4
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$33.4		$2,222.8		$774.5			$200.0		$3,230.7
Net income available for common stock					53.3					53.3
Common stock dividends					(42.0		)			(42.0		)
Capital contributions from parent			100.0							100.0
Ending balance, March 31, 2019		$33.4		$2,322.8		$785.8			$200.0		$3,342.0



WPL			Additional					Total
	Common		Paid-In		Retained			Common
	Stock		Capital		Earnings			Equity
Three Months Ended March 31, 2020
Beginning balance, December 31, 2019		$66.2		$1,434.0		$863.4			$2,363.6
Net income					89.6			89.6
Common stock dividends					(42.1		)	(42.1		)
Capital contributions from parent			25.0					25.0
Ending balance, March 31, 2020		$66.2		$1,459.0		$910.9			$2,436.1
Three Months Ended March 31, 2019
Beginning balance, December 31, 2018		$66.2		$1,309.0		$774.3			$2,149.5
Net income					65.7			65.7
Common stock dividends					(36.0		)	(36.0		)
Ending balance, March 31, 2019		$66.2		$1,309.0		$804.0			$2,179.2