RGNX

SEC source: 0001562180-25-000186 · primarydocument.xml · nonDerivative · entry 1

Christmas Patrick J. · CIK 0001521123 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,810

F1 · shares: Represents shares of common stock withheld to pay taxes upon the vesting of restricted stock units originally granted to the reporting person on January 4, 2021, January 3, 2022, January 3, 2023 and January 2, 2024. The number of shares withheld was determined on January 2, 2025 based on the closing price of the issuer's common stock on December 31, 2024.

SEC source: 0001562180-25-000187 · primarydocument.xml · derivative · entry 1

Chan Mitchell · CIK 0001789335 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,547

Underlying: Common Stock · 62,547 shares

Expires 2035-01-02

F1 · derivative.exercise_date: 25% of the shares subject to this option shall vest after 12 months of continuous service with the Issuer. The balance will vest in equal monthly installments over the 36 months following January 2, 2026 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-25-000360 · primarydocument.xml · derivative · entry 1

Simpson Curran · CIK 0001346164 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478,606

Underlying: Common Stock · 478,606 shares

Expires 2035-01-02

F1 · derivative.exercise_date: 25% of the shares subject to this option shall vest after 12 months of continuous service with the Issuer. The balance will vest in equal monthly installments over the 36 months following January 2, 2026 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-24-007144 · primarydocument.xml · derivative · entry 3

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 40,000 shares, became exercisable as follows: 25% of the shares subject to the option vested on May 19, 2015, and the balance vested equal installments over the next 24 months.

SEC source: 0001562180-24-007144 · primarydocument.xml · nonDerivative · entry 2

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,286

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $10.01 to $10.35. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-007144 · primarydocument.xml · nonDerivative · entry 1

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,286

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-006869 · primarydocument.xml · derivative · entry 2

Chan Mitchell · CIK 0001789335 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 289,362

Underlying: Common Stock · 289,362 shares

Expires 2034-09-16

F2 · derivative.exercise_date: The option vesting commencement date shall be September 16, 2024. The options shall have a term of 10 years from the date of grant, subject to continuous service of the optionee to the Issuer. The options shall become exercisable as follows: with respect to 1/4th of the shares subject to the option when the optionee completes 12 months of continuous service to the Issuer after the vesting commencement date, and with respect to 1/48th of the shares subject to the option when the optionee completes each month of continuous service to the Issuer thereafter.

SEC source: 0001562180-24-006869 · primarydocument.xml · nonDerivative · entry 1

Chan Mitchell · CIK 0001789335 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,869

F1 · shares: The restricted stock unit (RSU) award vesting commencement date shall be September 16, 2024. 1/4th of the shares subject to the RSU shall vest on each of the first, second, third and fourth anniversaries of the first day of the month in which the RSU was granted, subject to the continuous service of the recipient to the Issuer.

SEC source: 0001562180-24-006657 · primarydocument.xml · derivative · entry 4

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 40,000 shares, became exercisable as follows: 25% of the shares subject to the option vested on May 19, 2015, and the balance vested equal installments over the next 24 months.

SEC source: 0001562180-24-006657 · primarydocument.xml · nonDerivative · entry 3

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,286

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $12.24 to $12.53. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-006657 · primarydocument.xml · nonDerivative · entry 2

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,986

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $11.24 to $12.20. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-006657 · primarydocument.xml · nonDerivative · entry 1

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,286

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-006146 · primarydocument.xml · derivative · entry 2

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 36,316 shares

Expires 2024-09-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 708,200 shares, became exercisable as follows: 474,490 of the shares subject to the option are initial shares ("Initial Shares") and 233,710 of the shares subject to the option are contingent shares ("Contingent Shares"). 120,394 of the Initial Shares vested on September 17, 2014, 88,524 of the Initial Shares vested on September 17, 2015 and an additional 7,377 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.

SEC source: 0001562180-24-006146 · primarydocument.xml · nonDerivative · entry 1

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 444,351

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-24-006013 · primarydocument.xml · nonDerivative · entry 2

Danos Olivier · CIK 0001701180 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,083

F3 · shares: Represents shares of common stock underlying a time-based restricted stock unit award (RSU). 25% of the shares subject to this RSU will vest on each of February 1, 2025, August 1, 2025, February 1, 2026 and August 1, 2026 while the recipient provides continuous service to the Issuer.

SEC source: 0001562180-24-006017 · primarydocument.xml · nonDerivative · entry 1

PAKOLA STEVE · CIK 0001700659 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,578

F1 · shares: Represents shares of common stock underlying a time-based restricted stock unit award (RSU). 25% of the shares subject to this RSU will vest on each of February 1, 2025, August 1, 2025, February 1, 2026 and August 1, 2026 while the recipient provides continuous service to the Issuer.

SEC source: 0001562180-24-006015 · primarydocument.xml · derivative · entry 7

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 10,000 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 40,000 shares, became exercisable as follows: 25% of the shares subject to the option vested on May 19, 2015, and the balance vested equal installments over the next 24 months.

SEC source: 0001562180-24-006015 · primarydocument.xml · derivative · entry 6

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,400

Underlying: Common Stock · 100 shares

Expires 2026-06-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 12,500 shares, became exercisable as follows: the option vested in 12 equal monthly installments following June 1, 2016.

SEC source: 0001562180-24-006015 · primarydocument.xml · nonDerivative · entry 5

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,286

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-006015 · primarydocument.xml · nonDerivative · entry 4

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,386

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $14.44 to $14.65. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-006015 · primarydocument.xml · nonDerivative · entry 3

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,786

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.20 to $14.05. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-006015 · primarydocument.xml · nonDerivative · entry 2

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,386

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-006015 · primarydocument.xml · nonDerivative · entry 1

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,286

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-006014 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 170,037

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan as adopted on March 15, 2024.

SEC source: 0001562180-24-006016 · primarydocument.xml · nonDerivative · entry 1

Christmas Patrick J. · CIK 0001521123 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,205

F1 · shares: Represents shares of common stock underlying a time-based restricted stock unit award (RSU). 25% of the shares subject to this RSU will vest on each of February 1, 2025, August 1, 2025, February 1, 2026 and August 1, 2026 while the recipient provides continuous service to the Issuer.

SEC source: 0001562180-24-005875 · primarydocument.xml · derivative · entry 3

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,500

Underlying: Common Stock · 11,000 shares

Expires 2026-06-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 12,500 shares, became exercisable as follows: the option vested in 12 equal monthly installments following June 1, 2016.

SEC source: 0001562180-24-005875 · primarydocument.xml · nonDerivative · entry 2

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,286

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $15.00 to $15.32. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-005875 · primarydocument.xml · nonDerivative · entry 1

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,286

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005874 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 170,137

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $15.00 to $15.20. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-005855 · primarydocument.xml · derivative · entry 6

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,354

Underlying: Common Stock · 15,369 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 275,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on May 19, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-24-005855 · primarydocument.xml · nonDerivative · entry 4

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 408,035

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F3 · price: This transaction was executed in multiple trades at prices ranging from $13.76 to $14.25. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-005855 · primarydocument.xml · nonDerivative · entry 3

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 423,404

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005855 · primarydocument.xml · derivative · entry 5

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,723

Underlying: Common Stock · 12,221 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F4 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 275,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on May 19, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-24-005855 · primarydocument.xml · nonDerivative · entry 2

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 408,035

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.76 to $13.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-005855 · primarydocument.xml · nonDerivative · entry 1

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 420,256

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005798 · primarydocument.xml · derivative · entry 6

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,944

Underlying: Common Stock · 2,210 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F3 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 275,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on May 19, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-24-005798 · primarydocument.xml · nonDerivative · entry 4

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 408,035

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.76 to $13.80. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-005798 · primarydocument.xml · nonDerivative · entry 3

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 410,245

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005798 · primarydocument.xml · derivative · entry 5

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 81,154

Underlying: Common Stock · 200 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F3 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 275,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on May 19, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-24-005798 · primarydocument.xml · nonDerivative · entry 2

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 408,035

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005798 · primarydocument.xml · nonDerivative · entry 1

Mills Kenneth T. · CIK 0001652824 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 408,235

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005566 · primarydocument.xml · derivative · entry 3

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 10,000 shares

Expires 2025-05-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 40,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on May 19, 2015, and the balance vested in equal monthly installments over the 24 months thereafter.

SEC source: 0001562180-24-005566 · primarydocument.xml · nonDerivative · entry 2

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,286

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $10.98 to $11.76. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-24-005566 · primarydocument.xml · nonDerivative · entry 1

KARABELAS ARGERIS N · CIK 0001191229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,286

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001562180-24-005567 · primarydocument.xml · derivative · entry 2

Simpson Curran · CIK 0001346164 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 272,189

Underlying: Common Stock · 272,189 shares

Expires 2034-07-01

F2 · derivative.exercise_date: The option vesting commencement date shall be July 1, 2024. The options shall have a term of 10 years from the date of grant, subject to continuous service of the optionee to the Issuer. The options shall become exercisable as follows: with respect to 1/4th of the shares subject to the option when the optionee completes 12 months of continuous service to the Issuer after the vesting commencement date, and with respect to 1/48th of the shares subject to the option when the optionee completes each month of continuous service to the Issuer thereafter.

SEC source: 0001562180-24-005567 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,785

F1 · shares: The restricted stock unit (RSU) award vesting commencement date shall be July 1, 2024. 1/4th of the shares subject to the RSU shall vest on each of the first, second, third and fourth anniversaries of the first day of the month in which the RSU was granted, subject to the continuous service of the recipient to the Issuer.

SEC source: 0001562180-24-006013 · primarydocument.xml · nonDerivative · entry 1

Danos Olivier · CIK 0001701180 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,216

F1 · security: The reporting person is voluntarily reporting the acquisition of shares of the Issuer's common stock pursuant to the REGENXBIO Inc. Employee Stock Purchase Plan ("ESPP") for the ESPP purchase period of January 1, 2024 through June 30, 2024. This transaction is exempt under Rule 16b-3(c).

F2 · price: In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on June 28, 2024.

SEC source: 0001562180-24-004652 · primarydocument.xml · derivative · entry 2

Bennett Jean · CIK 0001872219 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,454

Underlying: Common Stock · 24,454 shares

Expires 2034-05-31

F2 · derivative.exercise_date: The option will vest in 12 equal monthly installments following May 31, 2024 subject to the continuous service of the optionee to the Issuer.

SEC source: 0001562180-24-004652 · primarydocument.xml · nonDerivative · entry 1

Bennett Jean · CIK 0001872219 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,286

F1 · shares: Represents shares of common stock underlying a time-based restricted stock unit award (RSU). 100% of the shares subject to this RSU will vest on May 1, 2025 subject to the continuous service of the recipient to the Issuer.

SEC source: 0001562180-24-004655 · primarydocument.xml · derivative · entry 2

MIGAUSKY GEORGE V · CIK 0001134365 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,454

Underlying: Common Stock · 24,454 shares

Expires 2034-05-31

F2 · derivative.exercise_date: The option will vest in 12 equal monthly installments following May 31, 2024 subject to the continuous service of the optionee to the Issuer.