Basis of Presentation and Principles of Consolidation	3 Months Ended
Mar. 31, 2021
Basis of Presentation and Principles of Consolidation
Basis of Presentation and Principles of Consolidation	Note 1—Basis of Presentation and Principles of Consolidation The Condensed Consolidated Balance Sheets as of March 31, 2021 and December 31, 2020, and each of the related Condensed Consolidated Statements of Income, Condensed Consolidated Statements of Comprehensive Income and Condensed Consolidated Statements of Cash Flow for the three months ended March 31, 2021 and 2020, include the accounts of Amphenol Corporation and its subsidiaries (“Amphenol,” the “Company,” “we,” “our,” or “us”). All material intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements included herein are unaudited. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments considered necessary for a fair presentation of the results, in conformity with accounting principles generally accepted in the United States of America. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results to be expected for the full year. These condensed consolidated financial statements and the related notes should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020 (the “2020 Annual Report”). Stock Split On January 27, 2021, the Company announced that its Board of Directors approved a two-for-one split of the Company’s Common Stock. The stock split was effected in the form of a stock dividend paid to shareholders of record as of the close of business on February 16, 2021. The additional shares were distributed on March 4, 2021, and the Company’s Common Stock began trading on a split-adjusted basis on March 5, 2021. As a result of the stock split, shareholders received one additional share of Amphenol Common Stock, $0.001 par value, for each share held as of the record date. There was no change in the number of authorized common shares of the Company as a result of the stock split. All current and prior year data presented in the accompanying Condensed Consolidated Financial Statements and notes thereto in this Form 10-Q, including but not limited to, number of shares, share and per share activity, stock-based compensation data including stock options and restricted share units and related per share data, basic and diluted earnings per share, and dividends per share amounts, have been adjusted to reflect the effect of the stock split. As a result of the stock split, certain prior period amounts have been reclassified to conform to the current period presentation in the Condensed Consolidated Financial Statements and accompanying notes herein. The impact to the Condensed Consolidated Balance Sheets, as well as the rollforward of consolidated changes in equity included in Note 7 herein, was an increase of $0.3 to Common Stock, with an offsetting decrease in Additional paid-in capital, which has been retroactively adjusted for all periods presented.

Basis of Presentation and Principles of Consolidation

3 Months Ended

Mar. 31, 2021

Basis of Presentation and Principles of Consolidation

Basis of Presentation and Principles of Consolidation

Note 1—Basis of Presentation and Principles of Consolidation

The Condensed Consolidated Balance Sheets as of March 31, 2021 and December 31, 2020, and each of the related Condensed Consolidated Statements of Income, Condensed Consolidated Statements of Comprehensive Income and Condensed Consolidated Statements of Cash Flow for the three months ended March 31, 2021 and 2020, include the accounts of Amphenol Corporation and its subsidiaries (“Amphenol,” the “Company,” “we,” “our,” or “us”). All material intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements included herein are unaudited. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments considered necessary for a fair presentation of the results, in conformity with accounting principles generally accepted in the United States of America. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results to be expected for the full year. These condensed consolidated financial statements and the related notes should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020 (the “2020 Annual Report”).

Stock Split

On January 27, 2021, the Company announced that its Board of Directors approved a two-for-one split of the Company’s Common Stock. The stock split was effected in the form of a stock dividend paid to shareholders of record as of the close of business on February 16, 2021. The additional shares were distributed on March 4, 2021, and the Company’s Common Stock began trading on a split-adjusted basis on March 5, 2021. As a result of the stock split, shareholders received one additional share of Amphenol Common Stock, $0.001 par value, for each share held as of the record date. There was no change in the number of authorized common shares of the Company as a result of the stock split.

All current and prior year data presented in the accompanying Condensed Consolidated Financial Statements and notes thereto in this Form 10-Q, including but not limited to, number of shares, share and per share activity, stock-based compensation data including stock options and restricted share units and related per share data, basic and diluted earnings per share, and dividends per share amounts, have been adjusted to reflect the effect of the stock split. As a result of the stock split, certain prior period amounts have been reclassified to conform to the current period presentation in the Condensed Consolidated Financial Statements and accompanying notes herein. The impact to the Condensed Consolidated Balance Sheets, as well as the rollforward of consolidated changes in equity included in Note 7 herein, was an increase of $0.3 to Common Stock, with an offsetting decrease in Additional paid-in capital, which has been retroactively adjusted for all periods presented.