Filed Pursuant to Rule 424(b)(3)
Registration No. 333-295336
Subject to Completion, dated April 27, 2026
PROSPECTUS SUPPLEMENT
(To Prospectus dated April 27, 2026)

HCA Inc.
$ Senior Notes Consisting of:
$ % Senior Notes due
$ % Senior Notes due
$ % Senior Notes due
HCA Inc. is offering $ aggregate principal amount of % Senior Notes due , which we refer to as the “ notes,” $ aggregate principal amount of % Senior Notes due , which we refer to as the “ notes,” and $ aggregate principal amount of % Senior Notes due , which we refer to as the “ notes.” The notes, the notes and the notes are collectively referred to herein as the “notes,” unless context otherwise requires. The notes will bear interest at a rate of % per annum, the notes will bear interest at a rate of % per annum and the notes will bear interest at a rate of % per annum. HCA Inc. will pay interest on the notes, the notes and the notes semi-annually, in cash in arrears, on and of each year, beginning on , 2026. The notes will mature on , , the notes will mature on , , and the notes will mature on , .
We may redeem each series of notes, at any time in whole or from time to time in part, in each case at the redemption prices described in this prospectus supplement. In addition, if a Change of Control Triggering Event (as defined in “Description of the Notes—Repurchase at the Option of Holders—Change of Control Triggering Event”) occurs, we will be required to repurchase the notes of each series from holders on the terms described in this prospectus supplement.
The notes will be HCA Inc.’s senior obligations and will rank equally and ratably with all of its existing and future senior indebtedness and senior to any of its existing and future subordinated indebtedness. The obligations under the notes will be fully and unconditionally guaranteed by HCA Healthcare, Inc., the direct parent company of HCA Inc., on a senior unsecured basis and will rank equally and ratably with HCA Healthcare, Inc.’s existing and future senior indebtedness and senior to any of its existing and future subordinated indebtedness. The obligations under the notes will be structurally subordinated in right of payment to all obligations of HCA Inc.’s subsidiaries and will be effectively subordinated to any of HCA Inc.’s existing and future secured indebtedness to the extent of the value of the collateral securing such indebtedness.
HCA Inc. intends to use the net proceeds of this offering for general corporate purposes, which may include the repayment of outstanding borrowings under our commercial paper program (as defined below), and may use a portion of the net proceeds from this offering for the redemption of all or a portion of the $1.500 billion outstanding aggregate principal amount of its 5.250% senior notes due June 2026 (the “5.250% 2026 notes”) and the $1.000 billion outstanding aggregate principal amount of its 5.375% senior notes due September 2026 (the “5.375% 2026 notes,” and, together with the 5.250% 2026 notes, the “2026 notes” and any such redemption of the 2026 notes, the “Redemption”). See “Use of Proceeds.”
Investing in the notes involves risks. See “Risk Factors” beginning on page S-6.
Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission or other regulatory body has approved or disapproved of these securities or determined if this prospectus supplement or the attached prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
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We expect to deliver the notes to investors on or about , 2026 in book-entry form only through the facilities of The Depository Trust Company (“DTC”). See “Underwriting (Conflicts of Interest)—Settlement.”
Joint Book-Running Managers
Citigroup |
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Barclays |
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BofA Securities |
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J.P. Morgan |
Prospectus Supplement dated , 2026

