Stockholders' Equity and Noncontrolling Interests (Tables)

6 Months Ended

Jun. 30, 2024

Stockholders' Equity and Noncontrolling Interests

Rollforward of consolidated changes in equity

A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the three months ended June 30, 2024 is as follows:

	Stockholders’ equity attributable to Amphenol Corporation
											Accumulated						Redeemable
	Common Stock			Treasury Stock			Additional				Other		Non-				Non-
	Shares			Shares			Paid-In		Retained		Comprehensive		controlling		Total		controlling
	(in millions)	Amount		(in millions)	Amount		Capital		Earnings		Loss		Interests (1)		Equity		Interests
Balance as of March 31, 2024	1,203.9	$	1.2	(2.6)	$	(103.8)	$	3,223.5	$	6,163.5	$	(602.9)	$	52.2	$	8,733.7	$	30.9
Net income										524.8				3.6		528.4		0.3
Other comprehensive income (loss)												(45.6)		(0.2)		(45.8)		(0.1)
Capital contributions from noncontrolling interests														0.3		0.3
Purchase of noncontrolling interests								(0.9)						—		(0.9)		(11.2)
Distributions to shareholders of noncontrolling interests														(5.4)		(5.4)
Purchase of treasury stock				(3.1)		(190.4)										(190.4)
Retirement of treasury stock	(3.1)		—	3.1		190.4				(190.4)						—
Stock options exercised	4.8		—	0.8		30.0		100.0		(13.5)						116.5
Dividends declared ($0.11 per common share)										(132.4)						(132.4)
Stock-based compensation expense								26.6								26.6
Balance as of June 30, 2024	1,205.6	$	1.2	(1.8)	$	(73.8)	$	3,349.2	$	6,352.0	$	(648.5)	$	50.5	$	9,030.6	$	19.9

(1) Excludes redeemable noncontrolling interests.

A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the six months ended June 30, 2024 is as follows:

	Stockholders’ equity attributable to Amphenol Corporation
											Accumulated						Redeemable
	Common Stock			Treasury Stock			Additional				Other		Non-				Non-
	Shares			Shares			Paid-In		Retained		Comprehensive		controlling		Total		controlling
	(in millions)	Amount		(in millions)	Amount		Capital		Earnings		Loss		Interests (1)		Equity		Interests
Balance as of December 31, 2023	1,201.3	$	1.2	(3.5)	$	(142.8)	$	3,100.6	$	5,921.1	$	(533.6)	$	49.3	$	8,395.8	$	30.7
Net income										1,073.5				6.6		1,080.1		0.7
Other comprehensive income (loss)												(114.9)		(1.1)		(116.0)		(0.3)
Capital contributions from noncontrolling interests														1.1		1.1
Purchase of noncontrolling interests								(0.9)						—		(0.9)		(11.2)
Distributions to shareholders of noncontrolling interests														(5.4)		(5.4)
Purchase of treasury stock				(5.9)		(344.2)										(344.2)
Retirement of treasury stock	(5.9)		—	5.9		344.2				(344.2)						—
Stock options exercised	10.2		—	1.7		69.0		199.1		(33.9)						234.2
Dividends declared ($0.22 per common share)										(264.5)						(264.5)
Stock-based compensation expense								50.4								50.4
Balance as of June 30, 2024	1,205.6	$	1.2	(1.8)	$	(73.8)	$	3,349.2	$	6,352.0	$	(648.5)	$	50.5	$	9,030.6	$	19.9

(1) Excludes redeemable noncontrolling interests.

A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the three months ended June 30, 2023 is as follows:

	Stockholders’ equity attributable to Amphenol Corporation
											Accumulated						Redeemable
	Common Stock			Treasury Stock			Additional				Other		Non-				Non-
	Shares			Shares			Paid-In		Retained		Comprehensive		controlling		Total		controlling
	(in millions)	Amount		(in millions)	Amount		Capital		Earnings		Loss		Interests (1)		Equity		Interests
Balance as of March 31, 2023	1,192.6	$	1.2	(2.1)	$	(69.7)	$	2,747.9	$	5,121.3	$	(492.6)	$	57.5	$	7,365.6	$	20.9
Net income										460.5				4.3		464.8		0.5
Other comprehensive income (loss)												(99.9)		(3.3)		(103.2)		—
Distributions to shareholders of noncontrolling interests														(1.3)		(1.3)
Purchase of treasury stock				(4.0)		(153.6)										(153.6)
Retirement of treasury stock	(4.0)		—	4.0		153.6				(153.6)						—
Stock options exercised	4.8		—	0.6		20.1		88.1		(8.3)						99.9
Dividends declared ($0.105 per common share)										(125.1)						(125.1)
Stock-based compensation expense								23.8								23.8
Balance as of June 30, 2023	1,193.4	$	1.2	(1.5)	$	(49.6)	$	2,859.8	$	5,294.8	$	(592.5)	$	57.2	$	7,570.9	$	21.4

(1) Excludes redeemable noncontrolling interests.

A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the six months ended June 30, 2023 is as follows:

	Stockholders’ equity attributable to Amphenol Corporation
											Accumulated						Redeemable
	Common Stock			Treasury Stock			Additional				Other		Non-				Non-
	Shares			Shares			Paid-In		Retained		Comprehensive		controlling		Total		controlling
	(in millions)	Amount		(in millions)	Amount		Capital		Earnings		Loss		Interests (1)		Equity		Interests
Balance as of December 31, 2022	1,192.0	$	1.2	(2.4)	$	(79.8)	$	2,649.8	$	4,979.4	$	(535.0)	$	57.9	$	7,073.5	$	20.6
Net income										899.7				7.5		907.2		0.8
Other comprehensive income (loss)												(57.5)		(2.5)		(60.0)		—
Acquisitions resulting in noncontrolling interests														0.8		0.8
Distributions to shareholders of noncontrolling interests														(6.5)		(6.5)
Purchase of treasury stock				(8.2)		(320.5)										(320.5)
Retirement of treasury stock	(8.2)		—	8.2		320.5				(320.5)						—
Stock options exercised	9.6		—	0.9		30.2		164.5		(13.8)						180.9
Dividends declared ($0.21 per common share)										(250.0)						(250.0)
Stock-based compensation expense								45.5								45.5
Balance as of June 30, 2023	1,193.4	$	1.2	(1.5)	$	(49.6)	$	2,859.8	$	5,294.8	$	(592.5)	$	57.2	$	7,570.9	$	21.4

(1) Excludes redeemable noncontrolling interests.

Schedules of dividends

	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Dividends declared	$	132.4	$	125.1	$	264.5	$	250.0
Dividends paid (including those declared in the prior year)		132.1		125.0		263.8		249.9