Company: RGNX
Filing Date: 2025-11-26
Form Type: S-3
Source: 0001193125-25-300539
Chunk: 32

Company: REGENXBIO Inc.
Filing Date: 2025-11-26
Form: S-3
Chunk 32
---
, holders of rights will not have any of the rights of holders of the securities purchasable upon subscription, including, in the case of rights to purchase common stock or preferred stock, the right to receive dividends, if any, or payments upon our liquidation, dissolution or winding up or to exercise any voting rights or, in the case of rights to purchase debt securities, the right to receive principal, premium, if any, or interest payments, on the debt securities purchasable upon exercise or to enforce covenants in the applicable indenture. 23

DESCRIPTION OF UNITS We may issue units comprising one or more securities described in this prospectus in any combination. The following description sets forth certain general terms and provisions of the units that we may offer pursuant to this prospectus. The particular terms of the units and the extent, if any, to which the general terms and provisions may apply to the units so offered will be described in the applicable prospectus supplement. Each unit will be issued so that the holder of the unit also is the holder of each security included in the unit. Thus, the unit will have the rights and obligations of a holder of each included security. Units will be issued pursuant to the terms of a unit agreement, which may provide that the securities included in the unit may not be held or transferred separately at any time or at any time before a specified date. A copy of the forms of the unit agreement and the unit certificate relating to any particular issue of units will be filed with the SEC each time we issue units, and you should read those documents for provisions that may be important to you. For more information on how you can obtain copies of the forms of the unit agreement and the related unit certificate, see “Where You Can Find More Information.” The prospectus supplement relating to any particular issuance of units will describe the terms of those units, including, to the extent applicable, the following:

| • |     | the designation and terms of the units and the securities comprising the units, including whether and under what 
 circumstances those securities may be held or transferred separately;                                            |

| • |     | any provision for the issuance, payment, settlement, transfer or exchange of the units or of the securities 
 comprising the units; and                                                                                   |

| • |     | whether the units will be issued in fully registered or global form. |

24

PLAN OF DISTRIBUTION From time to time, we may sell the securities offered by this prospectus in any one or more of the following ways:

| • |