Enhanced Group expects 1-for-10 reverse stock split

For DTC-held shares, fractional interests will be determined and rounded at the DTC-participant level; brokers may apply their own processing procedures to street-name shares.

Rhea-AI Filing Summary

Enhanced Group Inc. expects a one-for-ten reverse stock split of its issued and outstanding Class A and Class B common stock, effective at 12:01 a.m. Central Time on October 29, 2026. Class A common stock is expected to begin split-adjusted trading on the NYSE at the opening of trading that day under ENHA. No fractional shares will be issued; fractional results will be rounded up to the nearest whole share. The split will not change authorized shares or shareholders’ percentage ownership or relative voting power, except for rounding effects. Outstanding equity awards, warrants, exercise prices and equity-plan share reserves will be adjusted proportionately under their terms.

Key Figures

Reverse stock split ratio: 1-for-10 Effective date and time: 12:01 a.m. Central Time on October 29, 2026 Last reported sales price: $1.22 per share +1 more

4 metrics

Reverse stock split ratio 1-for-10 Class A and Class B common stock

Effective date and time 12:01 a.m. Central Time on October 29, 2026 Expected effective time of the reverse stock split

Last reported sales price $1.22 per share Class A common stock on October 16, 2026

Par value $0.0001 per share Class A and Class B common stock

Key Terms

reverse stock split, split-adjusted basis, fractional share interests, street name

4 terms

reverse stock split financial

"one-for-ten reverse stock split"

A reverse stock split reduces a company's number of outstanding shares while raising the price per share proportionally, so the total value of each investor's holding is unchanged; a 1-for-10 split turns 100 shares worth $1 each into 10 shares worth $10 each. Companies often do this to regain compliance with an exchange's minimum price rule or to attract investors who avoid very low-priced stocks.

split-adjusted basis financial

"begin trading on a split-adjusted basis"

An adjustment to historical share prices and share counts that reflects past stock splits or reverse splits so that old data lines up with the current number of shares. Think of it like resizing an old photograph so it matches a new frame: it keeps price charts, returns and per‑share metrics comparable over time, which matters to investors who need accurate performance, valuation and trend analysis.

fractional share interests financial

"fractional share interests will be determined"

street name financial

"shares in “street name”"

A "street name" is a way that stocks or other financial assets are registered under a broker's name rather than directly in an individual investor's name. This allows for easier buying, selling, and transferring of the assets, much like how a library might hold books on behalf of many readers. For investors, using a street name simplifies transactions and helps maintain privacy, but it also means the broker is the official record holder of ownership.

Stock Split

1-for-10 reverse split · Effective October 29, 2026

Split Ratio 1-for-10 reverse split

Effective Date October 29, 2026

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When will ENHA's reverse stock split take effect?

Enhanced Group expects the one-for-ten reverse stock split to take effect at 12:01 a.m. Central Time on October 29, 2026. Class A common stock is expected to begin split-adjusted trading at the opening of trading that day under ENHA.

How will ENHA handle fractional shares in the reverse stock split?

Fractional shares will not be issued; any resulting fractional share will be rounded up to the nearest whole share of the applicable class. For shares held through DTC, fractional interests will be determined and rounding effected at the DTC-participant level.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/20/2026 - 06:14 AM EDT Accepted by SEC EDGAR 10/19/2026 - 06:59 PM EDT Learn about SEC filing dates

PROSPECTUS SUPPLEMENT NO. 4
(TO PROSPECTUS DATED SEPTEMBER 4, 2026) Filed Pursuant to Rule 424(b)(3) Registration No. 333-298547

This prospectus supplement supplements the prospectus dated September 4, 2026 (the “Prospectus”) filed by Enhanced Group Inc. (the “Company”), which forms a part of the Company’s Registration Statement on Form S‑1 (Registration No. 333‑298547). This prospectus supplement is being filed to update and supplement the information in the Prospectus with the information contained in the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on October 19, 2026 (the “Current Report”). Accordingly, we have attached the Company’s Current Report to this prospectus supplement. Capitalized terms used herein and not otherwise defined shall have the meanings set forth in the Prospectus.

Our Class A common stock is listed on The New York Stock Exchange (“NYSE”) under the symbol “ENHA”. On October 16, 2026, the last reported sales price of our Class A common stock on NYSE was $1.22 per share.

This prospectus supplement should be read in conjunction with the Prospectus, including any amendments or supplements to it, which is to be delivered with this prospectus supplement. This prospectus supplement is qualified by reference to the Prospectus, including any amendments or supplements thereto, except to the extent that the information provided by this prospectus supplement supersedes information contained in the Prospectus.

This prospectus supplement is not complete without, and may not be delivered or used except in conjunction with, the Prospectus, including any amendments or supplements to it.

We are an “emerging growth company” and a “smaller reporting company” as those terms are defined under the federal securities laws and, as such, are subject to certain reduced public company reporting requirements.

Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties described in the section titled “Risk Factors” beginning on page 10 of the Prospectus, and under similar headings in any amendments or supplements to the Prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or passed upon the accuracy or adequacy of this prospectus supplement. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is October 19, 2026.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 19, 2026

ENHANCED GROUP INC.

(Exact name of registrant as specified in its charter)

Texas			001-42769			42-2394886
(State or other jurisdiction of incorporation or organization)			(Commission File Number)			(IRS Employer Identification Number)

169 Madison Ave, Suite 15101 New York, NY			10016
(Address of principal executive offices)			(Zip Code)

N/A

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Class A Common Stock, par value $0.0001 per share

ENHA

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events

Enhanced Group Inc. (the “Company”) expects to effect a one-for-ten reverse stock split of its issued and outstanding Class A common stock, par value $0.0001 per share, and Class B common stock, par value $0.0001 per share (the “Reverse Stock Split”), effective at 12:01 a.m. Central Time on October 29, 2026. The Class A common stock is expected to begin trading on a split-adjusted basis on the New York Stock Exchange at the opening of trading on October 29, 2026, under the existing symbol “ENHA” and new CUSIP number 29333R206.

Each ten shares of each class will be combined into one share of the same class. The Reverse Stock Split will not change (i) the par value of the Company’s common stock, (ii) the number of authorized shares of either class of the Company’s common stock, or (iii) any shareholder’s percentage ownership interest or relative voting power in the Company, except for changes resulting from the rounding up of fractional shares. No fractional shares will be issued in connection with the Reverse Stock Split. Any fractional share of common stock that would otherwise result from the Reverse Stock Split will be rounded up to the nearest whole share of the applicable class. For shares held through The Depository Trust Company (“DTC”), fractional share interests will be determined, and rounding will be effected, at the DTC-participant level. Brokers, banks, and other nominees holding shares in “street name” will be instructed to effect the Reverse Stock Split for their beneficial holders but may apply their own procedures in processing the Reverse Stock Split. Beneficial holders should contact their broker, bank, or other nominee regarding the treatment of fractional share interests.

Proportionate adjustments will be made to outstanding equity awards, warrants, exercise prices, and share reserves under the Company’s equity plans, in accordance with their respective terms.

Pursuant to the NYSE Annual Listed Company Compliance Guidance Memo, which calls for at least ten calendar days’ advance public notice for certain corporate actions, this Current Report, filed on October 19, 2026, serves as the public announcement of the Reverse Stock Split. For more information on the Reverse Stock Split, please refer to the Company’s definitive information statement filed with the U.S. Securities and Exchange Commission on October 8, 2026.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 19, 2026

Enhanced Group Inc.

By:

/s/ Siddhartha Banthiya

Name

Siddhartha Banthiya

Title

Chief Financial Officer