SEC FORM 3SEC Form 3
| FORM 3 | UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 | | OMB APPROVAL | | OMB Number: | 3235-0104 | | Estimated average burden | | hours per response: | 0.5 |
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1. Name and Address of Reporting Person*
| C/O REGENXBIO INC. | | 9804 MEDICAL CENTER DRIVE |
(Street)
| 2. Date of Event Requiring Statement
(Month/Day/Year)
08/25/2026 | 3. Issuer Name and Ticker or Trading Symbol
REGENXBIO Inc.
[ RGNX ]
Foreign Trading Symbol
|
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable) | Director | | 10% Owner | | Officer (give title below) | | Other (specify below) | |
| 5. If Amendment, Date of Original Filed
(Month/Day/Year)
|
6. Individual or Joint/Group Filing (Check Applicable Line)
| Form filed by One Reporting Person | | Form filed by More than One Reporting Person |
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| Table I - Non-Derivative Securities Beneficially Owned |
|---|
| 1. Title of Security (Instr.
4)
| 2.
Amount of Securities Beneficially Owned (Instr.
4)
| 3. Ownership Form: Direct (D) or Indirect (I) (Instr.
5)
| 4. Nature of Indirect Beneficial Ownership (Instr.
5)
|
|---|
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities) |
|---|
| 1. Title of Derivative Security (Instr.
4)
| 2. Date Exercisable and Expiration Date
(Month/Day/Year) | 3. Title and Amount of Securities Underlying Derivative Security (Instr.
4)
| 4. Conversion or Exercise Price of Derivative Security
| 5. Ownership Form: Direct (D) or Indirect (I) (Instr.
5)
| 6. Nature of Indirect Beneficial Ownership (Instr.
5)
|
|---|
| Date Exercisable | Expiration Date | Title | Amount or Number of Shares |
|---|
| Explanation of Responses: |
| Remarks: |
|
| No securities are beneficially owned. |
| /s/ Patrick J. Christmas as attorney-in-fact | 08/27/2026 |
| ** Signature of Reporting Person | Date |
| Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. |
| * If the form is filed by more than one reporting person,
see
Instruction
5
(b)(v). |
| ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations
See
18 U.S.C. 1001 and 15 U.S.C. 78ff(a). |
| Note: File three copies of this Form, one of which must be manually signed. If space is insufficient,
see
Instruction 6 for procedure. |
| Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. |
POWER OF ATTORNEY
The undersigned individual (the "Reporting Person") hereby constitutes
and appoints each of Patrick J. Christmas, Curran M. Simpson and
Mitchell Chan, signing singly, with full power of substitution, as
the Reporting Person's true and lawful attorney in fact to:
(1) prepare and file on behalf of such Reporting Person any and all
reports, notices, communications and other documents (including, but
not limited to, reports on Schedule 13D, Schedule 13G, Form 13-F, Form 3,
Form 4 and Form 5) that such Reporting Person may be required to file
with the Securities and Exchange Commission (the "SEC") pursuant to the
Securities Act of 1933, as amended, and the Securities Exchange Act of
1934, as amended (together with the implementing regulations thereto, the
"Exchange Act") (collectively, the "Reports"), with respect to the Reporting
Person's ownership of, or transactions in, the securities of REGENXBIO Inc.
(the "Company"), (whether directly or indirectly owned) by such Reporting
Person;
(2) do and perform any and all acts for and on behalf of the Reporting Person
which may be necessary or desirable to complete and execute any such Reports,
complete and execute any amendment or amendments thereto, and timely file
such form with the SEC and any stock exchange or similar authority; and
(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney in fact, may be of benefit
to, in the best interest of, or legally required by, the Reporting Person,
it being understood that the documents executed by such attorney in fact
on behalf of the Reporting Person pursuant to this Power of Attorney shall
be in such form and shall contain such terms and conditions as such attorney
in fact may approve in such attorney in fact's discretion.
The Reporting Person hereby grants to such attorney in fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the Reporting Person
might or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney in fact,
or such attorney in fact's substitute or substitutes, shall lawfully do or
cause to be done by virtue of this power of attorney and the rights and powers
herein granted. The Reporting Person acknowledges that the foregoing attorney
in fact, in serving in such capacity at the request of the Reporting Person,
is not assuming any of the Reporting Person's responsibilities to comply with
Section 16 of the Exchange Act.
This Power of Attorney with respect to the Reporting Person shall
remain in full force and effect until such Reporting Person is no longer
required to file any Reports with respect to the Reporting Person's ownership
of, or transactions in, the securities of the Company, unless earlier revoked
in a signed writing delivered to the foregoing attorney in fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 25th day of August, 2026.
/s/ Gregory Ciongoli
Gregory Ciongoli
