MITSY Mitsui and Company Ltd (PK)

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 2)*

Thorne Healthtech, Inc.

(Name of Issuer)

Common Stock, $0.01 par value per share

(Title of Class of Securities)

885260 109

(CUSIP Number)

October 16, 2023

(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 (the “Act”) or otherwise subject to the liabilities of the section of the Act but shall be subject to all other provisions of that Act (however, see the Notes).

CUSIP No. 885260 109

This Amendment No. 2 to the Schedule 13G (“Amendment No. 2”) relating to Thorne Healthtech, Inc., a Delaware corporation (the “Issuer”), is being filed on behalf of the undersigned to amend the Schedule 13G filed with the Securities and Exchange Commission on February 10, 2023, as amended (the “Schedule 13G”). This Amendment No. 2 is the final amendment to the Schedule 13G and is an exit filing.

Thorne Healthtech, Inc.

152 W 57th Street, New York, NY 10019

Mitsui & Co., Ltd.

2-1 Ohtemachi 1-Chome, Chiyoda-ku, Tokyo, 100-8631 JAPAN

Japan

common stock, par value $0.01 per share

885260 109

Not Applicable.

The information required by Items 4(a)—(c) is set forth in Rows 5-9 and 11 of the cover page for the Reporting Person and is incorporated herein by reference.

On August 27, 2023, the Issuer entered into an Agreement and Plan of Merger with Healthspan Buyer, LLC and Healthspan Merger Sub, Inc. (“Purchaser”) pursuant to which Purchaser commenced a tender offer (the “Offer”) to purchase all of the issued and outstanding shares of common stock of the Issuer, $0.01 par value per share (the “Company Capital Stock”). Following the expiration time of the Offer, Purchaser accepted the Company Capital Stock validly tendered pursuant to the Offer at a purchase price of $10.20 per share in cash, without interest and subject to applicable withholding taxes. As a result, as of October 16, 2023, the Reporting Person is no longer the beneficial owner of any securities of the Issuer.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following ☒.

Not Applicable.

Not Applicable.

Not Applicable.

Not Applicable.

Not applicable.

Signature

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.

Date: October 17, 2023