Steve Pakola - 01 Feb 2026 Form 4 Insider Report for REGENXBIO Inc. (RGNX)

Role: Chief Medical Officer
Signature: /s/ Patrick J. Christmas as attorney-in-fact
Issuer symbol: RGNX
Transactions as of: 01 Feb 2026
Net transactions value: -$58,780
Form type: 4
Filing time: 03 Feb 2026, 16:46:40 UTC
Previous filing: 08 Jan 2026
Next filing: 12 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
PAKOLA STEVE	Chief Medical Officer	C/O REGENXBIO INC., 9804 MEDICAL CENTER DRIVE, ROCKVILLE	/s/ Patrick J. Christmas as attorney-in-fact	03 Feb 2026	0001700659

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RGNX	Common Stock	Tax liability	$58,780	-5,267	-2%	$11.16	253,050	01 Feb 2026	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Represents shares of common stock withheld to pay taxes upon the vesting of restricted stock units originally granted to the reporting person on August 1, 2024. The number of shares withheld was determined based on the closing price of the issuer's common stock on February 1, 2026.