Vittal Vasista - May 31, 2023 Form 4 Insider Report for REGENXBIO Inc. (RGNX)

Role: Chief Financial Officer
Signature: /s/ Patrick J. Christmas as attorney-in-fact
Stock symbol: RGNX
Transactions as of: May 31, 2023
Transactions value $: $29,750
Form type: 4
Date filed: 6/2/2023, 04:12 PM
Previous filing: Jan 5, 2023
Next filing: Jan 4, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RGNX	Common Stock	Options Exercise	$29.8K	+35K	+19.44%	$0.85^*	215K	May 31, 2023	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	RGNX	Employee Stock Option (Right to Buy)	Options Exercise	$0	-35K	-100%	$0.00^*	0	May 31, 2023	Common Stock	35K	$0.85	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	The previously granted option, representing a right to purchase a total of 424,900 shares, became exercisable as follows: 284,683 of the shares subject to the option are initial shares ("Initial Shares") and 140,217 of the shares subject to the option are contingent shares ("Contingent Shares"). 72,235 of the Initial Shares vested on September 17, 2014, 53,112 of the Initial Shares vested on September 17, 2015 and an additional 4,426 of the Initial Shares vested upon each month of continuous service to the Company thereafter. 25% of the Contingent Shares were deemed vested as of September 17, 2014 on January 13, 2015 due to a subsequent event. The remainder of the Contingent Shares vested over four years of service following September 17, 2014, with 25% of the remaining 75% of Contingent Shares having vested on September 17, 2015 and the remaining Contingent Shares having vested in 36 equal monthly installments thereafter.
F2	Notwithstanding the foregoing, 59,533 shares subject to this option that would otherwise have vested monthly between January 2018 and September 2018 were deemed vested as of December 31, 2015 on January 28, 2016 due to subsequent events.

Content

The previously granted option, representing a right to purchase a total of 424,900 shares, became exercisable as follows: 284,683 of the shares subject to the option are initial shares ("Initial Shares") and 140,217 of the shares subject to the option are contingent shares ("Contingent Shares"). 72,235 of the Initial Shares vested on September 17, 2014, 53,112 of the Initial Shares vested on September 17, 2015 and an additional 4,426 of the Initial Shares vested upon each month of continuous service to the Company thereafter. 25% of the Contingent Shares were deemed vested as of September 17, 2014 on January 13, 2015 due to a subsequent event. The remainder of the Contingent Shares vested over four years of service following September 17, 2014, with 25% of the remaining 75% of Contingent Shares having vested on September 17, 2015 and the remaining Contingent Shares having vested in 36 equal monthly installments thereafter.

Notwithstanding the foregoing, 59,533 shares subject to this option that would otherwise have vested monthly between January 2018 and September 2018 were deemed vested as of December 31, 2015 on January 28, 2016 due to subsequent events.