Company: RGNX
Filing Date: 2025-04-08
Form Type: DEF 14A
Source: 0000950170-25-052069
Chunk: 2

Company: REGENXBIO Inc.
Filing Date: 2025-04-08
Form: DEF 14A
Chunk 2
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GENXBIO INC. 2025 EQUITY INCENTIVE PLAN                             | 51 |
| SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT                                | 63 |
| CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS                                          | 66 |
| QUESTIONS AND ANSWERS ABOUT THE PROXY MATERIALS AND VOTING                                    | 67 |
| OTHER MATTERS                                                                                 | 72 |
| CONTACT INFORMATION FOR QUESTIONS AND ASSISTANCE WITH VOTING                                  | 73 |
| APPENDIX A: REGENXBIO INC. 2025 EQUITY INCENTIVE PLAN                                         | 74 |

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REGENXBIO Inc.

9804 Medical Center Drive

Rockville, MD 20850

PROXY STATEMENT</div>

This Proxy Statement is furnished in connection with the solicitation of proxies to be voted at the 2025 Annual Meeting of Stockholders (the “Annual Meeting”) of REGENXBIO Inc., which will be held on May 30, 2025, at 9:00 a.m. local time at the Company’s offices located at 9804 Medical Center Drive, Rockville, Maryland 20850.

When this Proxy Statement refers to “REGENXBIO,” the “Company,” “we,” “us” or “our,” it is referring to REGENXBIO Inc.

We are making this Proxy Statement and our Annual Report on Form 10‑K for the fiscal year ended December 31, 2024 (the “Annual Report”) available to stockholders at www.proxyvote.com. On or about April 8, 2025, we will begin mailing to our stockholders a Notice of Internet Availability of Proxy Materials (the “Notice”) containing instructions on how to access and review this Proxy Statement and the Annual Report. The Notice also instructs you how you may submit your proxy over the internet or via telephone. If you would like to receive a printed copy of our proxy materials, you should follow the instructions for requesting those materials included in the Notice.

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PROXY STATEMENT EXECUTIVE SUMMARY</div>

This summary highlights information contained elsewhere in this Proxy Statement. This summary does not contain all of the information you should consider. Please read the entire Proxy Statement carefully before voting.

Voting Overview and Vote Recommendations of the Board - Items of Business

Election of Directors: Please vote “For” each nominee(page6)

Director nominees have the