EQUINIX INC files 424B2: prospectus (424B)

Prospectus Supplement (To Prospectus Dated February 13, 2026)

Equinix, Inc.

Equinix Europe 2 Financing Corporation LLC

Unconditionally Guaranteed by Equinix, Inc.

Equinix, Inc., a Delaware corporation (the “Parent”), is offering $850,000,000 aggregate principal amount of 5.000% Senior Notes due 2029 (the “2029 Notes”), $650,000,000 aggregate principal amount of 5.500% Senior Notes due 2033 (the “2033 Notes”) and $650,000,000 aggregate principal amount of 5.800% Senior Notes due 2036 (the “2036 Notes”). Equinix Europe 2 Financing Corporation LLC (“Europe 2 Finco”, and together with the Parent, the “Issuers” and, each, an “Issuer”), a Delaware limited liability company that is an indirect, wholly-owned subsidiary of the Parent, is offering $850,000,000 aggregate principal amount of 5.250% Senior Notes due 2031 (the “2031 Notes” and together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “notes”).

Interest will accrue on the 2029 Notes from August 6, 2026 and will be payable semi-annually on February 15 and August 15 of each year, commencing February 15, 2027, on the 2031 Notes from August 6, 2026 and will be payable semi-annually on February 15 and August 15 of each year, commencing February 15, 2027, on the 2033 Notes from August 6, 2026 and will be payable semi-annually on February 15 and August 15 of each year, commencing February 15, 2027 and on the 2036 Notes from August 6, 2026 and will be payable semi-annually on February 15 and August 15 of each year, commencing February 15, 2027.

The Parent or Europe 2 Finco, as the case may be, may redeem the notes at its option in whole or in part at any time or from time to time at the redemption prices described under “Description of the 2029, 2033 and 2036 Notes — Optional Redemption,” or “Description of the 2031 Notes — Optional Redemption,” which include accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date. Depending on when such notes are redeemed, a make-whole premium may or may not be payable in respect of any such redemptions.

The 2031 Notes will be fully and unconditionally guaranteed on an unsecured basis by the Parent.

Upon a change of control triggering event, the relevant Issuer will be required to make an offer to purchase each holder’s notes, at a purchase price equal to 101% of the aggregate principal amount thereof plus accrued and unpaid interest, if any, to but not including, the date of purchase.

The notes will not be listed on any securities exchange or automated dealer quotation system. Currently there is no public market for the notes.

Investing in the notes involves risks. See “Risk Factors” beginning on page S-9 of this prospectus supplement, as well as the risks described in “Risk Factors” in our most recent Quarterly Report on Form 10-Q, which is incorporated by reference into this prospectus supplement and the accompanying prospectus.

Public offering price (1) 99.874 % $ 848,929,000 99.628 % $ 846,838,000 99.315 % $ 645,547,500 99.510 % $ 646,815,000

Underwriting discount 0.450 % $ 3,825,000 0.600 % $ 5,100,000 0.625 % $ 4,062,500 0.650 % $ 4,225,000

Proceeds, before expenses, to Equinix (1) 99.424 % $ 845,104,000 99.028 % $ 841,738,000 98.690 % $ 641,485,000 98.860 % $ 642,590,000

Plus accrued and unpaid interest, if any, from August 6, 2026.

The Issuers expect to deliver the notes in book-entry form through the facilities of The Depository Trust Company (“DTC”) against payment in New York, New York on or about August 6, 2026, which is the fifth business day following the date of this prospectus supplement (this settlement cycle is referred to as “T+5”). Purchasers of the notes should note that trading of the notes may be affected by the settlement date.

The following is a brief summary of certain terms of this offering. For a more complete description of the terms of the notes offered hereby, see “Description of the 2029, 2033 and 2036 Notes” and “Description of the 2031 Notes” in this prospectus supplement and the section titled “Description of Debt Securities” in the accompanying prospectus.

Issuers Equinix, Inc., a Delaware corporation, Issuer of the 2029, 2033 and 2036 Notes;

Equinix Europe 2 Financing Corporation LLC, a Delaware limited liability company, Issuer of the 2031 Notes.

Guarantor

The 2031 Notes will be unconditionally guaranteed by Equinix, Inc., a Delaware corporation.

Notes Offered $3,000,000,000 aggregate principal amount of notes, consisting of:

$850,000,000 aggregate principal amount of the 2029 Notes;

$850,000,000 aggregate principal amount of the 2031 Notes;

$650,000,000 aggregate principal amount of the 2033 Notes; and

$650,000,000 aggregate principal amount of the 2036 Notes.

The completion of the offering of the 2029, 2033 and 2036 Notes and the completion of the offering of the 2031 Notes are not conditioned on each other.

Maturity Dates 2029 Notes: August 15, 2029.

2031 Notes: August 15, 2031.

2033 Notes: August 15, 2033.

2036 Notes: August 15, 2036.

Interest

The 2029 Notes will bear interest from August 6, 2026 at the rate of 5.000% per annum.

The 2031 Notes will bear interest from August 6, 2026 at the rate of 5.250% per annum.

The 2033 Notes will bear interest from August 6, 2026 at the rate of 5.500% per annum.

The 2036 Notes will bear interest from August 6, 2026 at the rate of 5.800% per annum.

Interest Payment Dates 2029 Notes: February 15 and August 15 of each year, beginning on February 15, 2027.

2031 Notes: February 15 and August 15 of each year, beginning on February 15, 2027.

2033 Notes: February 15 and August 15 of each year, beginning on February 15, 2027.

2036 Notes: February 15 and August 15 of each year, beginning on February 15, 2027.

Ranking

The 2029, 2033 and 2036 Notes will be the Parent’s general senior obligations. Your right to payment under these notes will be:

effectively subordinated to all of the Parent’s existing and future secured indebtedness;

structurally subordinated to all existing and future indebtedness and other liabilities (including trade payables) of any of the Parent’s subsidiaries;

As of June 30, 2026, Equinix, Inc. had approximately $9.6 billion of outstanding indebtedness (inclusive of finance lease liabilities).

The 2031 Notes will be Europe 2 Finco’s general senior obligations. Your right to payment under these notes will be:

effectively subordinated to any of Europe 2 Finco’s existing and future secured indebtedness;

structurally subordinated to any existing and future indebtedness and other liabilities (including trade payables) of any of Europe 2 Finco’s subsidiaries, if any;

As of June 30, 2026, Europe 2 Finco had no subsidiaries and $6.4 billion of outstanding indebtedness (excluding trade payables and intercompany items and liabilities of a type not required to be reflected on the balance sheet of Equinix, Inc.’s subsidiaries in accordance with U.S. generally accepted accounting principles, or GAAP).