Amphenol (APH) issues euro senior notes, guaranteed by parent (prospectus)
Amphenol Technologies Holding GmbH is offering euro-denominated senior unsecured notes to be guaranteed on a senior unsecured basis by Amphenol Corporation, as described in a preliminary prospectus supplement dated March 24, 2026. The notes will be senior, unsecured and unsubordinated and will rank equally with the Issuer’s existing senior unsecured indebtedness and be structurally subordinated to the indebtedness of its subsidiaries. The issuer may redeem the notes in certain circumstances, including optional redemptions and a tax-driven full redemption; a Change of Control Repurchase Event would require an offer to repurchase at 101% of principal plus accrued interest. Net proceeds are intended to repay the Issuer’s outstanding 0.750% senior notes maturing on May 4, 2026 and for general corporate purposes. The offering contemplates listing on Euronext Dublin; admission and market liquidity are not assured.
Positive
- None.
Negative
- None.
Insights
Euro-denominated senior notes with Amphenol Corporation guarantee; proceeds target near-term 2026 maturity.
The offering establishes a euro-denominated senior unsecured issuance by Amphenol Technologies Holding GmbH with a senior guarantee from Amphenol Corporation. The indenture contains customary covenants limiting liens, sale-leasebacks and certain mergers, and includes optional and tax-driven redemption features and a 101% change-of-control repurchase clause.
Key dependencies include approval for listing on Euronext Dublin, access to euro funding, and the company’s ability to repay or refinance the 0.750% 2026 Notes at maturity on May 4, 2026. Subsequent filings will clarify final coupon, aggregate principal and pricing.
Guarantee and cross‑jurisdictional insolvency considerations are central legal points.
The notes are governed by New York law and guaranteed by a Delaware parent; the Issuer is a German GmbH. Structural subordination to subsidiaries’ debt and potential German insolvency or preventive restructuring measures (StaRUG) could affect creditor recovery and restructuring outcomes.
Investors should note the Additional Amounts clause and the tax-redemption right. Enforcement may involve multi-jurisdictional complexity between German and U.S. courts; subsequent documents will indicate final terms and any trustee or paying-agent mechanics.
DATED MARCH 24, 2026
(To Prospectus dated March 2, 2026)
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Price to Public(1)
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Underwriting
Discount |
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Proceeds to us
(before expenses) |
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Per note
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Total
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Citigroup
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Commerzbank
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HSBC
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BofA Securities
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Goldman Sachs & Co. LLC
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TD Securities
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Loop Capital Markets
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Siebert Williams Shank
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Page
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ABOUT THIS PROSPECTUS SUPPLEMENT
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| | | | S-iii | | |
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FORWARD-LOOKING STATEMENTS
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| | | | S-vi | | |
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TRADEMARKS
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| | | | S-vii | | |
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INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
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| | | | S-vii | | |
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SUMMARY
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| | | | S-1 | | |
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RISK FACTORS
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| | | | S-10 | | |
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USE OF PROCEEDS
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| | | | S-17 | | |
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CAPITALIZATION
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| | | | S-18 | | |
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DESCRIPTION OF THE NOTES
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| | | | S-20 | | |
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PROVISIONS RELATING TO THE NOTES WHILE REPRESENTED BY THE GLOBAL NOTES
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| | | | S-32 | | |
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MATERIAL UNITED STATES FEDERAL INCOME TAX CONSEQUENCES
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| | | | S-36 | | |
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MATERIAL GERMAN TAX CONSIDERATIONS
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| | | | S-41 | | |
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CERTAIN ERISA CONSIDERATIONS
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| | | | S-45 | | |
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CERTAIN GERMAN INSOLVENCY LAW CONSIDERATIONS
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| | | | S-47 | | |
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UNDERWRITING
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| | | | S-51 | | |
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LEGAL MATTERS
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| | | | S-57 | | |
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EXPERTS
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| | | | S-57 | | |
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SUPPLEMENTAL LISTING AND GENERAL INFORMATION
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| | | | S-58 | | |
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Page
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ABOUT THIS PROSPECTUS
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NOTICE TO PROSPECTIVE INVESTORS IN THE EUROPEAN ECONOMIC AREA
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FORWARD-LOOKING STATEMENTS
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| | | | 4 | | |
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WHERE YOU CAN FIND MORE INFORMATION
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| | | | 4 | | |
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INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
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| | | | 5 | | |
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RISK FACTORS
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| | | | 6 | | |
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AMPHENOL CORPORATION
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| | | | 7 | | |
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AMPHENOL TECHNOLOGIES HOLDING GMBH
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| | | | 8 | | |
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Page
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ENFORCEMENT OF CIVIL LIABILITIES
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| | | | 9 | | |
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USE OF PROCEEDS
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| | | | 11 | | |
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GUARANTOR DISCLOSURES
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| | | | 12 | | |
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DESCRIPTION OF SENIOR DEBT SECURITIES
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| | | | 13 | | |
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DESCRIPTION OF GUARANTEES
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| | | | 25 | | |
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GLOBAL SECURITIES
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| | | | 26 | | |
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PLAN OF DISTRIBUTION
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| | | | 30 | | |
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LEGAL MATTERS
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| | | | 32 | | |
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EXPERTS
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| | | | 32 | | |
Amphenol Corporation 358
Hall Avenue
Wallingford, Connecticut 06492
Telephone No: (203) 265-8900
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Year Ended December 31,
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(in millions)
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2025
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2024
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2023
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| Statements of Income Data: | | | | | | | | | | | | | | | | | | | |
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Net sales
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| | | $ | 23,094.7 | | | | | $ | 15,222.7 | | | | | $ | 12,554.7 | | |
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Cost of sales
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| | | | 14,577.0 | | | | | | 10,083.0 | | | | | | 8,470.6 | | |
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Selling, general and administrative expenses
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| | | | 2,545.7 | | | | | | 1,855.4 | | | | | | 1,489.9 | | |
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Operating income
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| | | | 5,868.6 | | | | | | 3,156.9 | | | | | | 2,559.6 | | |
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Net income attributable to APH
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| | | | 4,270.3 | | | | | | 2,424.0 | | | | | | 1,928.0 | | |
| Non-GAAP Data: | | | | | | | | | | | | | | | | | | | |
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Adjusted operating income(a)
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| | | | 6,049.8 | | | | | | 3,302.5 | | | | | | 2,594.2 | | |
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Adjusted net income attributable to APH(a)
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| | | | 4,272.5 | | | | | | 2,382.1 | | | | | | 1,870.4 | | |
| Statements of Cash Flow and Other Data: | | | | | | | | | | | | | | | | | | | |
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Net cash provided by operating activities
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| | | | 5,374.7 | | | | | | 2,814.7 | | | | | | 2,528.7 | | |
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Net cash used in investing activities
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| | | | (5,082.1) | | | | | | (2,648.6) | | | | | | (1,393.7) | | |
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Net cash provided by (used in) financing activities
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| | | | 7,423.2 | | | | | | 1,729.9 | | | | | | (1,012.4) | | |
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Capital expenditures
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| | | | (996.6) | | | | | | (665.4) | | | | | | (372.8) | | |
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As of December 31,
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(in millions)
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2025
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2024
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2023
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| Balance Sheet Data: | | | | | | | | | | | | | | | | | | | |
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Cash and cash equivalents
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| | | $ | 11,130.6 | | | | | $ | 3,317.0 | | | | | $ | 1,475.0 | | |
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Short-term investments
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| | | | 303.6 | | | | | | 18.4 | | | | | | 185.2 | | |
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Working capital(b)
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| | | | 13,464.4 | | | | | | 5,602.2 | | | | | | 3,682.6 | | |
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Total assets
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| | | | 36,236.9 | | | | | | 21,440.2 | | | | | | 16,526.4 | | |
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Total debt(c)
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| | | | 15,502.0 | | | | | | 6,886.1 | | | | | | 4,337.3 | | |
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Total equity
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| | | | 13,500.4 | | | | | | 9,847.4 | | | | | | 8,395.8 | | |
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Year Ended December 31,
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2025
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2024
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2023
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(in millions)
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Operating
Income |
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Net Income
attributable to APH |
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Operating
Income |
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Net Income
attributable to APH |
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Operating
Income |
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Net Income
attributable to APH |
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Reported (GAAP)
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| | | $ | 5,868.6 | | | | | $ | 4,270.3 | | | | | $ | 3,156.9 | | | | | $ | 2,424.0 | | | | | $ | 2,559.6 | | | | | $ | 1,928.0 | | |
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Amortization of acquisition-related inventory step-up costs
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| | | | 77.8 | | | | | | 59.6 | | | | | | 18.2 | | | | | | 14.0 | | | | | | — | | | | | | — | | |
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Acquisition-related expenses
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| | | | 103.4 | | | | | | 89.2 | | | | | | 127.4 | | | | | | 105.3 | | | | | | 34.6 | | | | | | 30.2 | | |
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Gain on bargain purchase acquisition
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| | | | — | | | | | | — | | | | | | — | | | | | | — | | | | | | — | | | | | | (5.4) | | |
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Excess tax benefits related to stock-based compensation
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| | | | — | | | | | | (246.6) | | | | | | — | | | | | | (142.6) | | | | | | — | | | | | | (82.4) | | |
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Discrete tax items
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| | | | — | | | | | | 100.0 | | | | | | — | | | | | | (18.6) | | | | | | — | | | | | | — | | |
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Adjusted (non-GAAP)(1)
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| | | $ | 6,049.8 | | | | | $ | 4,272.5 | | | | | $ | 3,302.5 | | | | | $ | 2,382.1 | | | | | $ | 2,594.2 | | | | | $ | 1,870.4 | | |
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As of December 31, 2025
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(In millions)
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Historical
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Pro Forma As
Adjusted |
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Cash and cash equivalents
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| | | $ | 11,130.6 | | | | | $ | | | |
| Indebtedness: | | | | | | | | | | | | | |
| Short-term borrowings including obligations under capital leases: | | | | | | | | | | | | | |
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4.750% Senior Notes due 2026
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| | | | 349.9 | | | | | | 349.9 | | |
|
0.750% Senior Notes due 2026 of Amphenol Technologies Holding
GmbH(a) |
| | | | 586.5 | | | | | | — | | |
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364-day delayed draw term loan
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| | | | — | | | | | | 1,534.1 | | |
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Other
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| | | | 1.3 | | | | | | 1.3 | | |
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Short-term deferred debt issuance costs
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| | | | (0.5) | | | | | | (0.5) | | |
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Total short-term borrowings
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| | | $ | 937.2 | | | | | $ | 1,884.8 | | |
| Long-term debt including obligations under capital lease: | | | | | | | | | | | | | |
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Revolving credit facility
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| | | $ | — | | | | | $ | — | | |
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Three-year delayed draw term loan
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| | | | — | | | | | | 1,534.1 | | |
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U.S. Commercial Paper Program
|
| | | | — | | | | | | — | | |
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Euro Commercial Paper Program issued by Amphenol Technologies Holding
GmbH |
| | | | — | | | | | | — | | |
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5.050% Senior Notes due 2027
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| | | | 701.2 | | | | | | 701.2 | | |
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Floating Rate Senior Notes due 2027
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| | | | 500.0 | | | | | | 500.0 | | |
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3.800% Senior Notes due 2027
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| | | | 749.5 | | | | | | 749.5 | | |
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4.375% Senior Notes due 2028
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| | | | 749.5 | | | | | | 749.5 | | |
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3.900% Senior Notes due 2028
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| | | | 749.2 | | | | | | 749.2 | | |
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5.050% Senior Notes due 2029
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| | | | 449.7 | | | | | | 449.7 | | |
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4.350% Senior Notes due 2029
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| | | | 499.8 | | | | | | 499.8 | | |
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2.800% Senior Notes due 2030
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| | | | 899.7 | | | | | | 899.7 | | |
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4.125% Senior Notes due 2030
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| | | | 999.0 | | | | | | 999.0 | | |
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2.200% Senior Notes due 2031
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| | | | 748.4 | | | | | | 748.4 | | |
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3.125% Euro Senior Notes due 2032(a)
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| | | | 699.1 | | | | | | 699.1 | | |
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4.400% Senior Notes due 2033
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| | | | 1,248.5 | | | | | | 1,248.5 | | |
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5.250% Senior Notes due 2034
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| | | | 599.5 | | | | | | 599.5 | | |
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5.000% Senior Notes due 2035
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| | | | 746.7 | | | | | | 746.7 | | |
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4.625% Senior Notes due 2036
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| | | | 1,598.3 | | | | | | 1,598.3 | | |
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5.375% Senior Notes due 2054
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| | | | 492.5 | | | | | | 492.5 | | |
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As of December 31, 2025
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(In millions)
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Historical
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Pro Forma As
Adjusted |
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5.300% Senior Notes due 2055
|
| | | | 1,647.3 | | | | | | 1,647.3 | | |
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2.000% Euro Senior Notes due 2028 of Amphenol Technologies Holding GmbH(a)
|
| | | | 585.8 | | | | | | 585.8 | | |
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% Euro Senior Notes due 20 of Amphenol Technologies Holding GmbH offered hereby(a)
|
| | | | — | | | | | | | | |
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Other
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| | | | 0.5 | | | | | | 0.5 | | |
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Long-term deferred debt issuance costs
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| | | | (99.4) | | | | | | | | |
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Total long-term debt
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| | | $ | 14,564.8 | | | | | $ | | | |
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Total indebtedness
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| | | $ | 15,502.0 | | | | | $ | | | |
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Total equity
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| | | $ | 13,500.4 | | | | | $ | 13,500.4 | | |
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Total capitalization
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| | | $ | 29,002.4 | | | | | $ | | | |
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Underwriters
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Principal
Amount of Notes |
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Barclays Bank PLC
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| | | € | | | |
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Citigroup Global Markets Europe AG
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| | | € | | | |
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Commerzbank Aktiengesellschaft
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| | | € | | | |
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HSBC Bank plc
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| | | € | | | |
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BofA Securities Europe SA
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| | | € | | | |
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Goldman Sachs & Co. LLC
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| | | € | | | |
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TD Global Finance unlimited company
|
| | | € | | | |
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U.S. Bancorp Investments, Inc.
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| | | € | | | |
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Loop Capital Markets LLC
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| | | € | | | |
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Siebert Williams Shank & Co., LLC
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| | | € | | | |
| Total | | | | € | | | |
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Paid by the Issuer
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Per note
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| | | | % | | |
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Total
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| | | € | | | |
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Name
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Business Address
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Principal Occupation
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| Craig A. Lampo | | |
August-Häußer-Str. 10, 74080 Heilbronn, Germany
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Business Executive
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| Lance D’Amico | | |
August-Häußer-Str. 10, 74080 Heilbronn, Germany
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Business Executive
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| Günther Josef Spielbauer | | |
August-Häußer-Str. 10, 74080 Heilbronn, Germany
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Business Executive
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Guarantees
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Page
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ABOUT THIS PROSPECTUS
|
| | | | 1 | | |
|
NOTICE TO PROSPECTIVE INVESTORS IN THE EUROPEAN ECONOMIC AREA
|
| | | | 3 | | |
|
FORWARD-LOOKING STATEMENTS
|
| | | | 4 | | |
|
WHERE YOU CAN FIND MORE INFORMATION
|
| | | | 4 | | |
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INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
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| | | | 5 | | |
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RISK FACTORS
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| | | | 6 | | |
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AMPHENOL CORPORATION
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| | | | 7 | | |
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AMPHENOL TECHNOLOGIES HOLDING GMBH
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| | | | 8 | | |
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ENFORCEMENT OF CIVIL LIABILITIES
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| | | | 9 | | |
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USE OF PROCEEDS
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| | | | 11 | | |
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GUARANTOR DISCLOSURES
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| | | | 12 | | |
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DESCRIPTION OF SENIOR DEBT SECURITIES
|
| | | | 13 | | |
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DESCRIPTION OF GUARANTEES
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| | | | 25 | | |
|
GLOBAL SECURITIES
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| | | | 26 | | |
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PLAN OF DISTRIBUTION
|
| | | | 30 | | |
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LEGAL MATTERS
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| | | | 32 | | |
|
EXPERTS
|
| | | | 32 | | |
Amphenol Corporation
358 Hall Avenue
Wallingford, Connecticut 06492
Telephone No: (203) 265-8900
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BofA Securities
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Goldman Sachs & Co. LLC
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TD Securities
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FAQ
What is Amphenol (APH) offering in this prospectus supplement?
How will Amphenol use the proceeds from the offering (APH)?
Will the notes be guaranteed by Amphenol Corporation (APH)?
What redemption and repurchase rights are included in the notes (APH)?
Will the notes be listed and tradable (APH)?
What law governs the notes and are there cross‑jurisdictional risks (APH)?