| Stockholders' Equity and Noncontrolling Interests |
Note 7—Stockholders’ Equity and Noncontrolling Interests Net income attributable to noncontrolling interests is classified below net income. Earnings per share is determined after the impact of the noncontrolling interests’ share in net income of the Company. In addition, the equity attributable to noncontrolling interests is presented as a separate caption within equity. A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the three months ended June 30, 2026 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 | | Equity | | Interests | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Balance as of March 31, 2026 | | 1,232.2 | | $ | 1.2 | | (2.9) | | $ | (310.0) | | $ | 4,347.4 | | $ | 10,432.1 | | $ | (493.9) | | $ | 105.6 | | $ | 14,082.4 | | $ | 9.1 | Net income | | | | | | | | | | | | | | | | 1,769.2 | | | | | | 15.0 | | | 1,784.2 | | | (0.1) | Other comprehensive income (loss) | | | | | | | | | | | | | | | | | | | 89.7 | | | 1.5 | | | 91.2 | | | — | Distributions to and purchases of noncontrolling interests | | | | | | | | | | | | | | | | | | | | | | (0.6) | | | (0.6) | | | | Purchase of treasury stock | | | | | | | (1.5) | | | (208.0) | | | | | | | | | | | | | | | (208.0) | | | | Retirement of treasury stock | | (1.5) | | | — | | 1.5 | | | 208.0 | | | | | | (208.0) | | | | | | | | | — | | | | Stock options exercised | | 4.4 | | | — | | 0.4 | | | 54.0 | | | 112.9 | | | (40.4) | | | | | | | | | 126.5 | | | | Dividends declared ($0.25 per common share) | | | | | | | | | | | | | | | | (308.0) | | | | | | | | | (308.0) | | | | Stock-based compensation expense | | | | | | | | | | | | | 45.4 | | | | | | | | | | | | 45.4 | | | | Balance as of June 30, 2026 | | 1,235.1 | | $ | 1.2 | | (2.5) | | $ | (256.0) | | $ | 4,505.7 | | $ | 11,644.9 | | $ | (404.2) | | $ | 121.5 | | $ | 15,613.1 | | $ | 9.0 |
A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the six months ended June 30, 2026 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 | | Equity | | Interests | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Balance as of December 31, 2025 | | 1,228.9 | | $ | 1.2 | | (2.4) | | $ | (195.8) | | $ | 4,232.9 | | $ | 9,854.3 | | $ | (479.5) | | $ | 87.3 | | $ | 13,500.4 | | $ | 9.3 | Net income | | | | | | | | | | | | | | | | 2,702.2 | | | | | | 25.4 | | | 2,727.6 | | | (0.1) | Other comprehensive income (loss) | | | | | | | | | | | | | | | | | | | 75.3 | | | 2.5 | | | 77.8 | | | (0.2) | Acquisitions resulting in noncontrolling interests | | | | | | | | | | | | | | | | | | | | | | 6.9 | | | 6.9 | | | | Distributions to and purchases of noncontrolling interests | | | | | | | | | | | | | | | | | | | | | | (0.6) | | | (0.6) | | | | Purchase of treasury stock | | | | | | | (2.8) | | | (386.0) | | | | | | | | | | | | | | | (386.0) | | | | Retirement of treasury stock | | (1.5) | | | — | | 1.5 | | | 208.0 | | | | | | (208.0) | | | | | | | | | — | | | | Stock options exercised | | 7.7 | | | — | | 1.2 | | | 117.8 | | | 193.2 | | | (88.3) | | | | | | | | | 222.7 | | | | Dividends declared ($0.50 per common share) | | | | | | | | | | | | | | | | (615.3) | | | | | | | | | (615.3) | | | | Stock-based compensation expense | | | | | | | | | | | | | 79.6 | | | | | | | | | | | | 79.6 | | | | Balance as of June 30, 2026 | | 1,235.1 | | $ | 1.2 | | (2.5) | | $ | (256.0) | | $ | 4,505.7 | | $ | 11,644.9 | | $ | (404.2) | | $ | 121.5 | | $ | 15,613.1 | | $ | 9.0 |
A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the three months ended June 30, 2025 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 | | Equity | | Interests | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Balance as of March 31, 2025 | | 1,212.4 | | $ | 1.2 | | (3.1) | | $ | (174.0) | | $ | 3,672.2 | | $ | 7,445.9 | | $ | (644.1) | | $ | 61.9 | | $ | 10,363.1 | | $ | 9.3 | Net income | | | | | | | | | | | | | | | | 1,091.3 | | | | | | 9.5 | | | 1,100.8 | | | — | Other comprehensive income (loss) | | | | | | | | | | | | | | | | | | | 174.2 | | | 0.8 | | | 175.0 | | | 0.8 | Distributions to shareholders of noncontrolling interests | | | | | | | | | | | | | | | | | | | | | | (1.9) | | | (1.9) | | | | Purchase of treasury stock | | | | | | | (2.0) | | | (160.1) | | | | | | | | | | | | | | | (160.1) | | | | Retirement of treasury stock | | (2.0) | | | — | | 2.0 | | | 160.1 | | | | | | (160.1) | | | | | | | | | — | | | | Stock options exercised | | 11.6 | | | — | | 1.2 | | | 69.1 | | | 254.2 | | | (40.7) | | | | | | | | | 282.6 | | | | Dividends declared ($0.165 per common share) | | | | | | | | | | | | | | | | (201.2) | | | | | | | | | (201.2) | | | | Stock-based compensation expense | | | | | | | | | | | | | 31.3 | | | | | | | | | | | | 31.3 | | | | Balance as of June 30, 2025 | | 1,222.0 | | $ | 1.2 | | (1.9) | | $ | (104.9) | | $ | 3,957.7 | | $ | 8,135.2 | | $ | (469.9) | | $ | 70.3 | | $ | 11,589.6 | | $ | 10.1 |
A rollforward of consolidated changes in equity and redeemable noncontrolling interests for the six months ended June 30, 2025 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 | | Equity | | Interests | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Balance as of December 31, 2024 | | 1,212.9 | | $ | 1.2 | | (3.6) | | $ | (199.7) | | $ | 3,601.8 | | $ | 7,105.0 | | $ | (716.3) | | $ | 55.4 | | $ | 9,847.4 | | $ | 8.7 | Net income | | | | | | | | | | | | | | | | 1,829.1 | | | | | | 15.6 | | | 1,844.7 | | | 0.3 | Other comprehensive income (loss) | | | | | | | | | | | | | | | | | | | 246.4 | | | 1.2 | | | 247.6 | | | 1.1 | Distributions to shareholders of noncontrolling interests | | | | | | | | | | | | | | | | | | | | | | (1.9) | | | (1.9) | | | | Purchase of treasury stock | | | | | | | (4.7) | | | (341.0) | | | | | | | | | | | | | | | (341.0) | | | | Retirement of treasury stock | | (4.7) | | | — | | 4.7 | | | 341.0 | | | | | | (341.0) | | | | | | | | | — | | | | Stock options exercised | | 13.8 | | | — | | 1.7 | | | 94.8 | | | 298.0 | | | (57.1) | | | | | | | | | 335.7 | | | | Dividends declared ($0.33 per common share) | | | | | | | | | | | | | | | | (400.8) | | | | | | | | | (400.8) | | | | Stock-based compensation expense | | | | | | | | | | | | | 57.9 | | | | | | | | | | | | 57.9 | | | | Balance as of June 30, 2025 | | 1,222.0 | | $ | 1.2 | | (1.9) | | $ | (104.9) | | $ | 3,957.7 | | $ | 8,135.2 | | $ | (469.9) | | $ | 70.3 | | $ | 11,589.6 | | $ | 10.1 |
Stock Repurchase Programs On April 23, 2024, the Board authorized a stock repurchase program under which the Company may purchase up to $2,000.0 of its Common Stock during the three-year period ending on the close of business on April 28, 2027 (the “2024 Stock Repurchase Program”). The 2024 Stock Repurchase Program became effective on April 29, 2024. During the three and six months ended June 30, 2026, the Company repurchased 1.5 million and 2.8 million shares of its Common Stock for $208.0 and $386.0, respectively, under the 2024 Stock Repurchase Program. Of the total repurchases made during the six months ended June 30, 2026 under the 2024 Stock Repurchase Program, 1.5 million shares, or $208.0, have been retired by the Company, with the remainder of the repurchased shares retained in Treasury stock at the time of repurchase. From July 1, 2026 to July 28, 2026, the Company repurchased 0.5 million additional shares of its Common Stock for $74.0, and, as of July 29, 2026, the Company has remaining authorization to purchase up to $411.1 of its Common Stock under the 2024 Stock Repurchase Program. The timing and amount of any future repurchases will depend on a number of factors, such as the levels of cash generation from operations, the volume of stock options exercised by employees, cash requirements for acquisitions, dividends paid, economic and market conditions and the price of the Common Stock. Dividends Contingent upon declaration by the Board, the Company pays a quarterly dividend on shares of its Common Stock. On October 21, 2025, the Board approved an increase to the Company’s quarterly dividend rate from $0.165 per share to $0.25 per share, effective with dividends declared in the fourth quarter of 2025, contingent upon declaration by the Board. The following table summarizes the dividends declared and paid during the three and six months ended June 30, 2026 and 2025: | | | | | | | | | | | | | | | | Three Months Ended | | Six Months Ended | | | | June 30, | | June 30, | | | | 2026 | | 2025 | | 2026 | | 2025 | | Dividends declared | | $ | 308.0 | | $ | 201.2 | | $ | 615.3 | | $ | 400.8 | | Dividends paid (including those declared in the prior year) | | | 307.4 | | | 199.6 | | | 614.0 | | | 399.1 | |
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