REGENXBIO Inc.
RGNX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001590877
In the last 90 days, REGENXBIO Inc. insiders filed 1 open-market purchase and 2 sales; 165 institutions reported holding it in 13F filings for Q2 2026, worth $504.6M in total; no superinvestor holds it.
Holders of 5% or more of RGNX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of REGENXBIO Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Redmile Group, LLC | 13G/A | 9.90%5.06M shares | – | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| BlackRock, Inc. | 13G/A | 7.30%3.68M shares | −3.70 ppfrom 11.00% | Jan 8, 20252 filings | Apr 24, 2025 | SEC |
| State Street Corp | 13G | 5.30%2.73M shares | +0.90 ppfrom 4.40% | Feb 5, 20252 filings | May 12, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
11 Schedule 13D and 13G filings on REGENXBIO Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jun 4, 20261:09 PM ET | JPMorgan Chase & Co | 13G/A | 4.40%2.28M shares | −3.00 ppfrom 7.40%Below 5% | May 29, 2026 | SEC |
| May 12, 202611:53 AM ET | State Street Corp | 13G | 5.30%2.73M shares | +0.90 ppfrom 4.40% | Mar 31, 2026 | SEC |
| Mar 27, 202611:35 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −6.02 ppfrom 6.02%Below 5% | Mar 13, 2026 | SEC |
| Jan 21, 202612:26 PM ET | BlackRock Portfolio Management LLC | 13G/A | 4.10%2.09M shares | −2.10 ppfrom 6.20%Below 5% | Dec 31, 2025 | SEC |
| Aug 14, 20254:18 PM ET | Redmile Group, LLCand 2 others | 13G/A | 9.90%5.06M shares | – | Jun 30, 2025 | SEC |
| Jul 15, 20255:12 PM ET | BlackRock Portfolio Management LLC | 13G | 6.20%3.13M shares | New | Jun 30, 2025 | SEC |
| Apr 24, 20258:59 AM ET | BlackRock, Inc. | 13G/A | 7.30%3.68M shares | −3.70 ppfrom 11.00% | Mar 31, 2025 | SEC |
| Feb 12, 20253:07 PM ET | JPMorgan Chase & Co | 13G/A | 7.40%3.70M shares | – | Dec 31, 2024 | SEC |
| Feb 5, 20257:49 AM ET | State Street Corp | 13G | 4.40%2.19M shares | NewBelow 5% | Dec 31, 2024 | SEC |
| Jan 31, 20259:54 AM ET | Vanguard Group Inc | 13G/A | 6.02%2.99M shares | – | Dec 31, 2024 | SEC |
| Jan 8, 20256:45 PM ET | BlackRock, Inc. | 13G | 11.00%5.47M shares | New | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell REGENXBIO Inc. shares.
No Form 144 notices for REGENXBIO Inc. are on file.