UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.     )*

Cue Health Inc.

(Name of Issuer)

Common Stock, par value $0.00001 per share

(Title of Class of Securities)

229790100

(CUSIP Number)

September 29, 2021

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

☒ Rule 13d-1(c)

☐ Rule 13d-1(d)

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Item 1(a). Name of Issuer: Cue Health Inc. (the “Issuer”)

Item 1(b). Address of Issuer’s Principal Executive Officers: 4980 Carroll Canyon Rd., Suite 100, San Diego, CA 92121

Item 2(a). Name of Person Filing:

KSP Cue Health Investments, LLC (“KSP Cue Health”)

KSI Investment Holdings, LLC (“KSI Investment”)

KSI Equity Holdings, LP (“KSI Equity”)

KSI Holdings LP, Inc. (“KSI Holdings”)

Koch Industries, Inc. (“Koch Industries”)

(Each a “Reporting Person,” and collectively, the “Reporting Persons”).

Item 2(b). Address or Principal Business Office or, if None, Residence:

The principal business office for all Reporting Persons filing is:

4111 E. 37^th Street North

Wichita, KS 67220

Item 2(c). Citizenship: See Item 4 of each cover page.

Item 2(d).Title of Class of Securities: Common Stock, par value $0.00001 per share (“Public Shares”).

Item 2(e).CUSIP No.: 229790100.

Item 3. If this Statement is Filed Pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), Check Whether the Person Filing is a: Not applicable.

Item 4. Ownership.

(a) Amount beneficially owned: See Item 9 of each cover page.

(b) Percent of class: See Item 11 of each cover page. Calculated using 143,766,583 Public Shares outstanding after the closing of the Issuer’s initial public offering, which number of shares was reported as expected to be outstanding in the prospectus dated September 23, 2021 and filed by the Issuer on September 23, 2021 pursuant to Rule 424(b)(4) under the Securities Act of 1933.

(c) Number of shares as to which the person has:

KSP Cue Health is 100% owned by KSI Investment. KSI Investment is 100% owned by KSI Equity. KSI Equity is managed by its general partner, KSI Holdings. KSI Holdings is 100% owned by Koch Industries.

Koch Industries, KSI Holdings, KSI Equity and KSI Investment may be deemed to beneficially own the Public Shares held by KSP Cue Health by virtue of Koch Industries’ ownership of KSI Holdings, KSI Holdings serving as general partner of KSI Equity, KSI Equity’s ownership of KSI Investment and KSI Investment’s ownership of KSP Cue Health. The filing of this Schedule 13G shall not be construed as an admission that any of KSI Investment, KSI Equity, KSI Holdings or Koch Industries is, for purposes of Sections 13(d) or 13(g) of the Exchange Act, the beneficial owner of any Public Shares covered by this Schedule 13G.

Item 5. Ownership of 5 Percent or Less of a Class.

Not applicable.

Item 6. Ownership of More than 5 Percent on Behalf of Another Person.

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not applicable.

Item 8. Identification and Classification of Members of the Group.

Not applicable.

Item 9. Notice of Dissolution of Group.

Not applicable.

Item 10. Certifications.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §240.14a-11.

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: October 8, 2021

EXHIBIT INDEX

EXHIBIT 99.1

JOINT FILING AGREEMENT

This will confirm the agreement by and among the undersigned that the Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the shares of Common Stock, par value $0.00001 per share, of Cue Health Inc. (this “Agreement”), is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below that is named as a reporting person in such filing in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

Dated: October 8, 2021