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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1399529	Dicerna Pharmaceuticals Inc	DRNA	Pharmaceutical Preparations (2834)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1190418	J Stephen Hoffman	525 University Avenue Palo Alto CA 94301		Yes	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2014-02-04	312,000	$0.00	312,000	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2014-02-04	179,322	$0.00	491,322	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2014-02-04	1,043,429	$0.00	1,534,751	No	4	C	Indirect	See Footnote
Common Stock	Acquisiton	2014-02-04	200,000	$15.00	1,734,751	No	4	P	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	See Footnote
No	4	C	Indirect	See Footnote
No	4	C	Indirect	See Footnote
No	4	P	Indirect	See Footnote

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series A Preferred Stock	Disposition	2014-02-04	312,000	$0.00	312,000	$0.00
Common Stock	Series B Preferred Stock	Disposition	2014-02-04	179,322	$0.00	179,322	$0.00
Common Stock	Series C Preferred Stock	Disposition	2014-02-04	1,043,429	$0.00	1,043,429	$0.00
Common Stock	Common Stock Warrant	Acquisiton	2014-02-04	755	$0.00	755	$250.00
Common Stock	Series C Preferred Stock Warrants	Disposition	2014-02-04	21,697	$0.00	21,697	$7.00
Common Stock	Common Stock Warrant (right to buy)	Acquisiton	2014-02-04	21,697	$0.00	21,697	$7.00

Remaning Holdings	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	No	4	C	Indirect
0	No	4	C	Indirect
0	No	4	C	Indirect
755	No	4	C	Indirect
0	No	4	C	Indirect
21,697	No	4	C	Indirect

Footnotes

Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock is convertible into one share of the Issuer's Common Stock and will automatically convert into one share of the Issuer's Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.
These securities are held by Skyline Ventures Partners V, L.P. ("Skyline V"). Skyline Venture Management V, LLC serves as the sole general partner of Skyline V. The reporting person is a non-managing member of Skyline Venture Management V, LLC. The reporting person disclaims beneficial ownership of the shares reported herein, except to the extent of his pecuniary interest therein.
Warrants will expire June 17, 2020.
Warrants will expire June 17, 2020.