RGNX

SEC source: 0001562180-20-001112 · primarydocument.xml · derivative · entry 9

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,633

Underlying: Common Stock · 14,928 shares

Expires 2025-08-30

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.

F6 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 230,500 shares, became exercisable as follows: 25% of the shares subject to this option vested on August 31, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-20-001112 · primarydocument.xml · derivative · entry 8

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,500

Underlying: Common Stock · 12,479 shares

Expires 2028-01-03

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.

F5 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 55,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 3, 2019, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-001112 · primarydocument.xml · nonDerivative · entry 4

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,879

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 $50.00 to $50.66. 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: 0001562180-20-001112 · primarydocument.xml · nonDerivative · entry 3

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,308

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: 0001562180-20-001112 · primarydocument.xml · nonDerivative · entry 2

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,829

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: 0001562180-20-001112 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,901

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: 0001562180-20-001014 · primarydocument.xml · nonDerivative · entry 1

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 222,021

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

SEC source: 0001562180-20-001013 · primarydocument.xml · derivative · entry 3

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,900

Underlying: Common Stock · 2,000 shares

Expires 2024-09-23

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 354,100 shares, became exercisable as follows: 237,269 of the shares subject to the option are initial shares ("Initial Shares") and 116,831 of the shares subject to the option are contingent shares ("Contingent Shares"). 60,197 of the Initial Shares vested on September 17, 2014, 44,268 of the Initial Shares vested on September 17, 2015 and an additional 3,689 of the Initial Shares vested each month 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 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: 0001562180-20-001013 · primarydocument.xml · nonDerivative · entry 2

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 $50.00 to $50.05. 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: 0001562180-20-001013 · primarydocument.xml · nonDerivative · entry 1

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

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: 0001562180-20-001015 · primarydocument.xml · derivative · entry 9

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,708 shares

Expires 2026-01-27

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.

F6 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 10,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 28, 2017, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-20-001015 · primarydocument.xml · derivative · entry 8

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,378

Underlying: Common Stock · 1,000 shares

Expires 2027-01-03

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.

F5 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 30,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 4, 2018, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-001015 · primarydocument.xml · derivative · entry 7

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,561

Underlying: Common Stock · 958 shares

Expires 2025-08-30

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 230,500 shares, became exercisable as follows: 25% of the shares subject to this option vested on August 31, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-20-001015 · primarydocument.xml · derivative · entry 6

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,979

Underlying: Common Stock · 471 shares

Expires 2028-01-03

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 55,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 3, 2019, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-001015 · primarydocument.xml · nonDerivative · entry 5

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,648

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 $50.00 to $50.05. 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: 0001562180-20-001015 · primarydocument.xml · nonDerivative · entry 4

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,285

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: 0001562180-20-001015 · primarydocument.xml · nonDerivative · entry 3

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,814

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: 0001562180-20-001015 · primarydocument.xml · nonDerivative · entry 2

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,856

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: 0001562180-20-001015 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,856

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: 0001562180-20-000453 · primarydocument.xml · nonDerivative · entry 1

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 222,321

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 $50.00 to $50.02. 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: 0001562180-20-000452 · primarydocument.xml · derivative · entry 3

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,900

Underlying: Common Stock · 3,200 shares

Expires 2024-09-23

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 354,100 shares, became exercisable as follows: 237,269 of the shares subject to the option are initial shares ("Initial Shares") and 116,831 of the shares subject to the option are contingent shares ("Contingent Shares"). 60,197 of the Initial Shares vested on September 17, 2014, 44,268 of the Initial Shares vested on September 17, 2015 and an additional 3,689 of the Initial Shares vested each month 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 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: 0001562180-20-000452 · primarydocument.xml · nonDerivative · entry 2

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 $50.00 to $50.04. 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: 0001562180-20-000452 · primarydocument.xml · nonDerivative · entry 1

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,200

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: 0001562180-20-000454 · primarydocument.xml · derivative · entry 7

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,378

Underlying: Common Stock · 1,622 shares

Expires 2027-01-03

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.

F5 · derivative.exercise_date: The previously granted option, representing a right to purchase a total of 30,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 4, 2018, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000454 · primarydocument.xml · derivative · entry 6

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,519

Underlying: Common Stock · 2,700 shares

Expires 2025-08-30

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 230,500 shares, became exercisable as follows: 25% of the shares subject to this option vested on August 31, 2016, and the balance vested in equal monthly installments over the 36 months thereafter.

SEC source: 0001562180-20-000454 · primarydocument.xml · derivative · entry 5

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,450

Underlying: Common Stock · 800 shares

Expires 2028-01-03

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 55,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 3, 2019, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000454 · primarydocument.xml · nonDerivative · entry 4

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,148

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 $50.00 to $50.04. 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: 0001562180-20-000454 · primarydocument.xml · nonDerivative · entry 3

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,070

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: 0001562180-20-000454 · primarydocument.xml · nonDerivative · entry 2

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,270

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: 0001562180-20-000454 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,570

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: 0001562180-20-000391 · primarydocument.xml · derivative · entry 3

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,100

Underlying: Common Stock · 30,000 shares

Expires 2024-09-23

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 354,100 shares, became exercisable as follows: 237,269 of the shares subject to the option are initial shares ("Initial Shares") and 116,831 of the shares subject to the option are contingent shares ("Contingent Shares"). 60,197 of the Initial Shares vested on September 17, 2014, 44,268 of the Initial Shares vested on September 17, 2015 and an additional 3,689 of the Initial Shares vested each month 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 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: 0001562180-20-000391 · primarydocument.xml · nonDerivative · entry 2

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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 $45.00 to $45.94. 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: 0001562180-20-000391 · primarydocument.xml · nonDerivative · entry 1

HAYDEN DONALD J JR · CIK 0001202285 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

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: 0001562180-20-000321 · primarydocument.xml · derivative · entry 4

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,374

Underlying: Common Stock · 3,000 shares

Expires 2026-01-27

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 75,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 28, 2017, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000321 · primarydocument.xml · nonDerivative · entry 3

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224,715

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 $41.70 to $42.19. 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: 0001562180-20-000321 · primarydocument.xml · nonDerivative · entry 2

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 229,815

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 $40.66 to $41.65. 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: 0001562180-20-000321 · primarydocument.xml · nonDerivative · entry 1

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 232,215

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: 0001562180-20-000217 · primarydocument.xml · derivative · entry 1

PAKOLA STEVE · CIK 0001700659 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,600

Underlying: Common Stock · 42,600 shares

Expires 2030-01-02

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, 2021 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000218 · primarydocument.xml · derivative · entry 1

Danos Olivier · CIK 0001701180 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,000

Underlying: Common Stock · 48,000 shares

Expires 2030-01-02

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, 2021 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000214 · primarydocument.xml · derivative · entry 1

Mills Kenneth T. · CIK 0001652824 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,000

Underlying: Common Stock · 270,000 shares

Expires 2030-01-02

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, 2021 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000216 · primarydocument.xml · derivative · entry 1

Vasista Vittal · CIK 0001652827 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2030-01-02

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, 2021 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000219 · primarydocument.xml · derivative · entry 1

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,000

Underlying: Common Stock · 46,000 shares

Expires 2030-01-02

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, 2021 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-20-000220 · primarydocument.xml · derivative · entry 1

Christmas Patrick J. · CIK 0001521123 · SVP, General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2030-01-02

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, 2021 while the optionee provides continuous service to the Issuer.

SEC source: 0001562180-21-000141 · primarydocument.xml · nonDerivative · entry 1

Danos Olivier · CIK 0001701180 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,802

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 July 1, 2019 through December 31, 2019. 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 December 31, 2019.

SEC source: 0001562180-19-006017 · primarydocument.xml · nonDerivative · entry 2

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,948

F1 · kind: This sale was made pursuant to the Reporting Person's election under the Issuer's equity incentive plan and applicable award agreement to satisfy tax withholding obligations through a "sell to cover" transaction in connection with the vesting of 39,500 restricted stock unit shares awarded on December 8, 2016. This sale does not represent a discretionary trade by the Reporting Person.

F3 · price: This transaction was executed in multiple trades at prices ranging from $44.04 to $44.96. 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: 0001562180-19-006017 · primarydocument.xml · nonDerivative · entry 1

Simpson Curran · CIK 0001346164 · SVP, Product Development & CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,101

F1 · kind: This sale was made pursuant to the Reporting Person's election under the Issuer's equity incentive plan and applicable award agreement to satisfy tax withholding obligations through a "sell to cover" transaction in connection with the vesting of 39,500 restricted stock unit shares awarded on December 8, 2016. This sale does not represent a discretionary trade by the Reporting Person.

F2 · price: This transaction was executed in multiple trades at prices ranging from $43.038 to $44.03. 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: 0001562180-19-004927 · primarydocument.xml · derivative · entry 4

Mills Kenneth T. · CIK 0001652824 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,670

Underlying: Common Stock · 5,000 shares

Expires 2024-09-23

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 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: 0001562180-19-004927 · primarydocument.xml · nonDerivative · entry 3

Mills Kenneth T. · CIK 0001652824 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 241,000

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 $39.43 to $40.27. 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: 0001562180-19-004927 · primarydocument.xml · nonDerivative · entry 2

Mills Kenneth T. · CIK 0001652824 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 248,773

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 $38.43 to $39.41. 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: 0001562180-19-004927 · primarydocument.xml · nonDerivative · entry 1

Mills Kenneth T. · CIK 0001652824 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 251,000

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.