Dicerna Pharmaceuticals
Dicerna Pharmaceuticals Inc (Form: 4/A, Received: 04/21/2014 16:22:34)
FORM 4
[ ] 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 OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

LANGER DENNIS
2. Issuer Name and Ticker or Trading Symbol

Dicerna Pharmaceuticals Inc [ DRNA ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

480 ARSENAL STREET, BLDG 1, SUITE 120
3. Date of Earliest Transaction (MM/DD/YYYY)

2/4/2014
(Street)

WATERTOWN, MA 02472
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

2/4/2014 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   (1) 2/4/2014     C    95014   A   (2) 95194   I   Langer Family Holdings, LLLP  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 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
Series A Preferred   (1)   (2) 2/4/2014     C         15000      (2)   (2) Common Stock   15000   $0.00   0   I   Langer Family Holdings, LLLP  
Series B Preferred     (2) 2/4/2014     C         8586      (2)   (2) Common Stock   8586   $0.00   0   I   Langer Family Holdings, LLLP  
Series C Preferred     (2) 2/4/2014     C         71428      (2)   (2) Common Stock   71428   $0.00   0   I   Langer Family Holdings, LLLP  

Explanation of Responses:
( 1)  This amendment to Form 4 is being filed to correct the number of shares of the issuer's Series A preferred stock previously beneficially owned by the reporting person subject to the referenced transactions. The incorrect number of shares of the Series A preferred stock was also reported on the Form 3 filed by the reporting person on January 29, 2014 and the Form 4/A filed by the reporting person on February 20, 2014.
( 2)  The issuer's outstanding shares of Series A, Series B, and Series C preferred stock were automatically converted on a one-for-one basis into shares of the issuer's common stock immediately upon the closing of the issuer's initial public offering of common stock and had no expiration date.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
LANGER DENNIS
480 ARSENAL STREET, BLDG 1, SUITE 120
WATERTOWN, MA 02472
X



Signatures
Dennis Langer 4/21/2014
** 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).
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