Robert D. Ciappenelli - 13 Dec 2021 Form 4 Insider Report for Dicerna Pharmaceuticals Inc

Role: Chief Strategy Officer
Signature: /s/ Douglas W. Pagan, attorney-in-fact
Issuer symbol: N/A
Transactions as of: 13 Dec 2021
Net transactions value: +$199,968
Form type: 4
Filing time: 14 Dec 2021, 20:02:21 UTC
Previous filing: 15 Jun 2021
Next filing: 17 Dec 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DRNA	Common Stock	Options Exercise	$199,968	+8,856	+235%	$22.58	12,629	13 Dec 2021	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DRNA	Employee Stock Option (Right to Buy)	Options Exercise	$0	-8,856	-10%	$0.000000	76,144	13 Dec 2021	Common Stock	8,856	$22.58	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The option vests in 48 substantially equal monthly installments, with the first installment vesting on the last day of January 2020, and the remaining shares vesting on the last day of each of the 47 months thereafter; subject in each case to the reporting person's continued service with the issuer through each applicable vesting date.