Mitchell Chan - 01 Sep 2025 Form 4 Insider Report for REGENXBIO Inc. (RGNX)

Signature
/s/ Patrick J. Christmas as attorney-in-fact
Issuer symbol
RGNX
Transactions as of
01 Sep 2025
Transactions value $
-$43,766
Form type
4
Filing time
03 Sep 2025, 16:47:46 UTC
Previous filing
18 Jun 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Chan Mitchell Chief Financial Officer C/O REGENXBIO INC., 9804 MEDICAL CENTER DRIVE, ROCKVILLE /s/ Patrick J. Christmas as attorney-in-fact 03 Sep 2025 0001789335

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RGNX Common Stock Tax liability -$43.8K -4.9K -8.33% $8.93 54K 01 Sep 2025 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 September 16, 2024. The number of shares withheld was determined based on the closing price of the issuer's common stock on August 29, 2025.