STOCK TITAN

REGENXBIO grants Patrick Christmas 34,722 shares

The award vests in thirds on November 1, 2027, November 1, 2028 and November 1, 2029, while he provides continuous service.

Available on EDGAR Accepted by SEC EDGAR Learn about SEC filing dates
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Form Type
4

Rhea-AI Filing Summary

REGENXBIO Inc. Chief Strategy & Legal Officer Patrick J. Christmas was granted a time-based restricted stock unit award covering 34,722 shares of common stock on November 1, 2026. One-third of the award vests on each of November 1, 2027, November 1, 2028 and November 1, 2029, while he provides continuous service. His reported direct holdings after the award were 240,690 shares.

Insider Christmas Patrick J.
Role Chief Strategy & Legal Officer
Type Security Shares Price Value
Grant/Award Common Stock F1 34,722 $0.00 $0.00
Holdings After Transaction: Common Stock — 240,690 shares (Direct)
Holdings Before and After: Common Stock, 205,968 to 240,690 shares (Direct)
Footnotes (1)
  1. F1. Represents shares of common stock underlying a time-based restricted stock unit award (RSU). 1/3rd of the shares subject to the RSU award shall vest on each of November 1, 2027, November 1, 2028, and November 1, 2029, while the recipient provides continuous service to the Issuer.
Restricted stock unit award 34,722 shares Awarded November 1, 2026
Reported direct holdings after transaction 240,690 shares Following the November 1, 2026 award
Award vesting 1/3rd Each of November 1, 2027, November 1, 2028 and November 1, 2029, subject to continuous service
restricted stock unit award (RSU) financial
"time-based restricted stock unit award (RSU)"
time-based technical
"time-based restricted stock unit award"
continuous service technical
"while the recipient provides continuous service to the Issuer"

FAQ

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When do Patrick J. Christmas's RGNX RSUs vest?

One-third of the award vests on each of November 1, 2027, November 1, 2028 and November 1, 2029, while he provides continuous service to REGENXBIO Inc.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Christmas Patrick J.

(Last)(First)(Middle)
C/O REGENXBIO INC.
9804 MEDICAL CENTER DRIVE

(Street)
ROCKVILLE MARYLAND 20850

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
REGENXBIO Inc. [ RGNX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Strategy & Legal Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock11/01/2026A34,722(1)A$0.00240,690D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Represents shares of common stock underlying a time-based restricted stock unit award (RSU). 1/3rd of the shares subject to the RSU award shall vest on each of November 1, 2027, November 1, 2028, and November 1, 2029, while the recipient provides continuous service to the Issuer.
Remarks:
/s/ Patrick J. Christmas11/03/2026
** Signature of Reporting PersonDate
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 4 (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.
* Form 4: SEC 1474 (03-26)

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