Sec Form 3 Filing - Dolan Dan @ Radius Health, Inc. - 2020-09-24

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Dolan Dan 2. Issuer Name and Ticker or Trading Symbol Radius Health, Inc. [ RDUS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) See Remarks (Last) (First) (Middle) C/O RADIUS HEALTH, INC., 950 WINTER STREET 3. Date of Earliest Transaction (MM/DD/YY) 09/24/2020 (Street) WALTHAM, MA02451 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (Right to Buy) $ 34.89 ( 1 ) 08/15/2027 Common Stock 12,000 D Stock Option (Right to Buy) $ 37.75 ( 2 ) 02/13/2028 Common Stock 16,000 D Stock Option (Right to Buy) $ 19.18 ( 3 ) 02/22/2029 Common Stock 10,000 D Stock Option (Right to Buy) $ 20.25 ( 4 ) 03/02/2030 Common Stock 10,000 D Restricted Stock Units ( 5 ) $ 0 ( 6 ) ( 7 ) Common Stock 4,125 D Restricted Stock Units ( 5 ) $ 0 ( 8 ) ( 7 ) Common Stock 14,667 D Restricted Stock Units ( 5 ) $ 0 ( 9 ) ( 7 ) Common Stock 5,500 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Dolan Dan C/O RADIUS HEALTH, INC. 950 WINTER STREET WALTHAM, MA02451 See Remarks Signatures /s/ Dan Dolan 10/06/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )25% of this option vested on 8/15/2018; and the remaining shares shall vest in equal monthly installments over 36 months. ( 2 )25% of this option vested on 2/13/2019; and the remaining shares shall vest in equal monthly installments over 36 months. ( 3 )25% of this option vested on 2/22/2020; and the remaining shares shall vest in equal monthly installments over 36 months ( 4 )25% of this option shall vest on 3/2/2021; and the remaining shares shall vest in equal monthly installments over 36 months ( 5 )Each Restricted Stock Unit represents a contingent right to receive one share of common stock. ( 6 )25% of this Restricted Stock Unit grant vested on 2/22/2020, with the remaining 75% of the grant vesting annually over a period of 3 years. ( 7 )Not applicable. ( 8 )33.33% of this Restricted Stock Unit grant vested on 6/6/2020, with the remaining 66.66% vesting on 6/6/2022. ( 9 )This Restricted Stock Unit grant shall vest 33.33% annually over a period of 3 years.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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