Page 2 of 9 – SEC Filing
CUSIP No. 253031108
Names of Reporting Persons.
RA Capital Management, LLC
|2||Check the Appropriate Box if a Member of a Group (See Instructions)|
|3||SEC Use Only|
Source of Funds (See Instructions):
Check if disclosure of legal proceedings
Citizenship or Place of Organization.
Shared Voting Power 4,588,536 shares
Aggregate Amount Beneficially Owned by
Percent of Class Represented by Amount
Type of Reporting Person (See Instructions)
IA, OO (Limited Liability Company)
Represents 2,428,571 shares of the common stock (“Common Stock”) of Dicerna Pharmaceuticals, Inc. (the
“Issuer”) and 2,159,965 shares of the Common Stock underlying the Preferred Stock (as defined below) which
constitute approximately 20.81% of the class outstanding. The percentage calculation assumes that there are currently
20,794,193 outstanding shares of the Common Stock of the Issuer, based on the Issuer’s Form 10-K as filed with the
Securities and Exchange Commission (“SEC”) on March 30, 2017.