SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Brown Bob D

(Last) (First) (Middle)
C/O DICERNA PHARMACEUTICALS, INC.
75 HAYDEN AVENUE

(Street)
LEXINGTON MA 02421

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Dicerna Pharmaceuticals Inc [ DRNA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Scientific Ofr., EVP R&D
3. Date of Earliest Transaction (Month/Day/Year)
04/29/2021
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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
Common Stock 04/29/2021 M 10,000 A $9.09 31,517 D
Common Stock 04/29/2021 S(1)(2) 10,000(1) D $31 21,517 D
Common Stock 04/30/2021 M 10,000 A $9.09 31,517 D
Common Stock 04/30/2021 S(2)(3) 10,000(3) D $32 21,517 D
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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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 (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (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: 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
Employee Stock Option (Right to Buy) $9.09 04/29/2021 M 10,000 (4) 01/08/2026 Common Stock 10,000 $0 115,000 D
Employee Stock Option (Right to Buy) $9.09 04/30/2021 M 10,000 (4) 01/08/2026 Common Stock 10,000 $0 105,000 D
Explanation of Responses:
1. The Reporting Person sold an aggregate of 10,000 shares of Common Stock on April 29, 2021 (the "Shares Sold No. 1") as reported in this Form 4. The Shares Sold No. 1 represent 1.04% of 960,201 shares of Common Stock, which is the number of shares of Common Stock owned by the Reporting Person prior to the Shares Sold No. 1 transaction reported in this Form 4, as well as shares issuable upon exercise or settlement of vested and unvested options and restricted stock units held by the Reporting Person as of the date of this report.
2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2020.
3. The Reporting Person sold an aggregate of 10,000 shares of Common Stock on April 30, 2021 (the "Shares Sold No. 2") as reported in this Form 4. The Shares Sold No. 2 represent 1.05% of 950,201 shares of Common Stock, which is the number of shares of Common Stock owned by the Reporting Person prior to the Shares Sold No. 2 transaction reported in this Form 4, as well as shares issuable upon exercise or settlement of vested and unvested options and restricted stock units held by the Reporting Person as of the date of this report.
4. As of the transaction date, the option was fully vested. The option vested in 48 monthly installments over the four-year period with a vesting start date of January 8, 2016, subject in each case to the Reporting Person's continued employment or service with the Issuer through each applicable vesting date.
Remarks:
/s/ Douglas W. Pagan, attorney-in-fact 05/03/2021
** Signature of Reporting Person Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.