RDUS Radius Recycling Inc

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 14)*

Radius Health, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value

(Title of Class of Securities)

750469207

(CUSIP Number)

BB Biotech AG

Ivo Betschart

Schwertstrasse 6

CH-8200 Schaffhausen, Switzerland

+41 44 267 67 00

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

August 11, 2022

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.  ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

The information required on 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).

CUSIP No.: 750469207

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CUSIP No.: 750469207

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Schedule 13D (Amendment No. 14)

EXPLANATORY NOTE: This Amendment No. 14 to Schedule 13D amends the statement on Schedule 13D relating to shares of common stock, $0.0001 par value (the “Common Stock”) of Radius Health, Inc. (the “Issuer”), initially filed by BB Biotech AG (“BB Biotech”) and Biotech Growth, N.V. (“Biotech Growth”) with the Securities and Exchange Commission (“SEC”) on June 3, 2011 (together with all amendments thereto, this “Schedule 13D”). The shares of the Common Stock previously held by Biotech Growth were held by Biotech Target N.V. (“Biotech Target”) until August 11, 2022. Both Biotech Growth and Biotech Target are wholly-owned subsidiaries of BB Biotech. As a result of tender offer and related merger reported in Item 4 below, on August 11, 2022, each of BB Biotech and Biotech Target (collectively, the “Reporting Persons”) ceased to be beneficial owners of any Common Stock of the Issuer. This Amendment No. 14 constitutes an exit filing for the Reporting Persons.

Each capitalized term used and not defined herein shall have the meaning assigned to such term in prior amendments to this Schedule 13D. Except as otherwise provided herein, each Item of this Schedule 13D remains unchanged.

Item 4. Purpose of Transaction

Item 4 is hereby supplemented to add the following:

Pursuant to that certain Agreement and Plan of Merger (the “Merger Agreement”) dated June 23, 2022, by and among the Issuer, Ginger Acquisition, Inc. (“Parent”) and Ginger Merger Sub, Inc. (“Purchaser”), the Issuer merged with and into Purchaser on August 15, 2022, following a tender offer by Purchaser (the “Offer”) to purchase each outstanding share of Common Stock in exchange for (i) $10.00, in cash, without interest and less applicable tax withholdings, plus (ii) one contractual contingent value right, which represents the right to receive a contingent payment of $1.00 (without interest thereon) upon the satisfaction of certain conditions (collectively, the “Offer Price”). The Reporting Persons tendered all of their beneficially owned Common Stock into the Offer. After the expiration of the Offer, the Purchaser accepted all shares of Common Stock that were validly tendered and not validly withdrawn on August 11, 2022, and the Reporting Persons became entitled to receive the Offer Price per share. The number of shares of Common Stock tendered in the Offer satisfied the Minimum Condition (as defined in the Merger Agreement) and on August 15, 2022, following consummation of the Offer and pursuant to the Merger Agreement, the Purchaser merged with and into the Issuer.

Accordingly, as of August 11, 2022, the Reporting Persons ceased to be beneficial owners of any Common Stock.

Item 5. Interest in Securities of the Issuer

Items 5 is hereby amended and restated in its entirety as follows:

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Item 7. Material to Be Filed as Exhibits

Item 7 of the Schedule 13D is amended and supplemented as follows:

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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.