Institutional Ownership
Regenxbio Inc
CUSIP 75901B107COMRGNXQ1 2026
13D / 13G Filings
48
Schedule 13D/13G on record
Beneficial Filers
13
Distinct reporting persons
Largest Stake
18.7%
Max % of class reported
Institutional Holders
173
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
48 filings · latest Jan 21, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Jan 21, 2026 | Blackrock Portfolio Management LLC | 13G/A | 4.1% | 2.09M | SEC |
| 2 | Aug 14, 2025 | Redmile Group, LLC | 13G/A | 9.9% | 5.06M | SEC |
| 3 | Jul 15, 2025 | Blackrock Portfolio Management LLC | 13G | 6.2% | 3.13M | SEC |
| 4 | Apr 24, 2025 | Blackrock, Inc. | 13G/A | 7.3% | 3.68M | SEC |
| 5 | Feb 12, 2025 | Jpmorgan Chase &Amp; Co. | 13G/A | 7.4% | 3.70M | SEC |
| 6 | Feb 5, 2025 | State Street Corporation | 13G | 4.4% | 2.19M | SEC |
| 7 | Jan 31, 2025 | The Vanguard Group | 13G/A | 6.0% | 2.99M | SEC |
| 8 | Jan 8, 2025 | Blackrock, Inc. | 13G | 11.0% | 5.47M | SEC |
| 9 | Nov 14, 2024 | Redmile Group, LLC | 13G/A | 9.9% | 4.94M | SEC |
| 10 | Nov 12, 2024 | Vanguard Group Inc | 13G/A | 8.8% | 4.37M | SEC |
38 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Regenxbio Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 5.78M | $48.46M |
| 2 | Redmile Group, LLC | 4.37M | $36.61M |
| 3 | Jpmorgan Chase & Co | 3.48M | $27.07M |
| 4 | State Street Corp | 2.73M | $22.89M |
| 5 | Morgan Stanley | 2.07M | $17.31M |
| 6 | Goldman Sachs Group Inc | 1.84M | $15.41M |
| 7 | Integral Health Asset Management, LLC | 1.50M | $12.57M |
| 8 | Qube Research & Technologies Ltd | 1.31M | $10.98M |
| 9 | Geode Capital Management, LLC | 1.14M | $9.53M |
| 10 | Aqr Capital Management LLC | 1.05M | $8.81M |