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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1399529	Dicerna Pharmaceuticals Inc	DRNA	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1243847	B John Green	C/O Dicerna Pharmaceuticals, Inc. 87 Cambridgepark Drive Cambridge MA 02140	Chief Financial Officer	No	Yes	No	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	2019-10-31	12,500	$5.45	26,760	No	4	M	Direct
Common Stock	Disposition	2019-10-31	12,500	$18.00	14,260	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2019-10-31	12,500	$0.00	12,500	$5.45

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
252,500		2026-04-14	No	4	M	Direct

Footnotes

Includes shares acquired under the DRNA 2014 Employee Stock Purchase Plan in transactions that were exempt under Rule 16b-3(c).
The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 18, 2018.
The option vested 25% after the first year anniversary of the vesting start date of April 14, 2016 and the remaining 75% vests in 36 substantially equal monthly installments thereafter, subject in each case to the reporting person's continued employment with the issuer through the applicable vesting date.