RGNX REGENXBIO Inc.
REGENXBIO Inc. (RGNX) Institutional Ownership
What the institutions did with RGNX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 6.4M | 15.1% |
| Redmile Group, LLC | 4.4M | 10.3% |
| STATE STREET CORP | 3.0M | 7.0% |
| JPMORGAN CHASE & CO | 2.2M | 5.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.1M | 5.0% |
| MORGAN STANLEY | 2.0M | 4.6% |
| GOLDMAN SACHS GROUP INC | 1.4M | 3.4% |
| AQR CAPITAL MANAGEMENT LLC | 1.4M | 3.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4M | 3.2% |
| MARSHALL WACE, LLP | 1.3M | 3.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2M | 2.9% |
| Integral Health Asset Management, LLC | 800.0K | 1.9% |
| Nuveen, LLC | 740.0K | 1.7% |
| DIMENSIONAL FUND ADVISORS LP | 731.6K | 1.7% |
| D. E. Shaw & Co., Inc. | 712.8K | 1.7% |
| TWO SIGMA INVESTMENTS, LP | 669.8K | 1.6% |
| CITADEL ADVISORS LLC | 669.0K | 1.6% |
| STIFEL FINANCIAL CORP | 560.7K | 1.3% |
| BANK OF AMERICA CORP /DE/ | 518.5K | 1.2% |
| 22NW, LP | 492.8K | 1.2% |
| MILLENNIUM MANAGEMENT LLC | 480.8K | 1.1% |
| Pale Fire Capital SE | 466.2K | 1.1% |
| NORTHERN TRUST CORP | 421.8K | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 396.5K | 0.9% |
| LAZARD ASSET MANAGEMENT LLC | 370.4K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Qube Research & Technologies Ltd | Sold Out | 1.3M | 0 | -1.3M |
| MARSHALL WACE, LLP | New | 0 | 1.3M | +1.3M |
| JPMORGAN CHASE & CO | Reduced | 3.5M | 2.2M | -1.3M |
| Integral Health Asset Management, LLC | Reduced | 1.5M | 800.0K | -700.0K |
| CITADEL ADVISORS LLC | New | 0 | 669.0K | +669.0K |
| Assenagon Asset Management S.A. | Reduced | 980.6K | 338.6K | -642.1K |
| BlackRock, Inc. | Increased | 5.8M | 6.4M | +614.6K |
| D. E. Shaw & Co., Inc. | Increased | 286.0K | 712.8K | +426.8K |
| GOLDMAN SACHS GROUP INC | Reduced | 1.8M | 1.4M | -418.0K |
| LAZARD ASSET MANAGEMENT LLC | New | 0 | 370.4K | +370.4K |
| HRT FINANCIAL LP | Sold Out | 351.5K | 0 | -351.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.0M | 1.4M | +336.7K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.1M | 1.4M | +326.6K |
| Voss Capital, LP | Sold Out | 295.8K | 0 | -295.8K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.0M | 731.6K | -278.8K |
| Quantinno Capital Management LP | Increased | 44.0K | 300.1K | +256.2K |
| STATE STREET CORP | Increased | 2.7M | 3.0M | +239.7K |
| Corient Private Wealth LP | New | 0 | 217.7K | +217.7K |
| Walleye Capital LLC | New | 0 | 203.7K | +203.7K |
| Prosight Management, LP | Sold Out | 200.0K | 0 | -200.0K |
| MILLENNIUM MANAGEMENT LLC | Increased | 285.2K | 480.8K | +195.6K |
| BANK OF AMERICA CORP /DE/ | Increased | 324.9K | 518.5K | +193.7K |
| Man Group plc | Sold Out | 187.6K | 0 | -187.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 91.1K | 264.9K | +173.8K |
| STIFEL FINANCIAL CORP | Increased | 392.8K | 560.7K | +168.0K |
| Nuveen, LLC | Increased | 582.0K | 740.0K | +158.0K |
| JANE STREET GROUP, LLC | Increased | 105.5K | 253.5K | +147.9K |
| Point72 Asset Management, L.P. | Sold Out | 139.8K | 0 | -139.8K |
| ExodusPoint Capital Management, LP | Sold Out | 115.4K | 0 | -115.4K |
| TWO SIGMA INVESTMENTS, LP | Increased | 554.9K | 669.8K | +114.9K |
| MORGAN STANLEY | Reduced | 2.1M | 2.0M | -112.9K |
| Vestal Point Capital, LP | Sold Out | 108.5K | 0 | -108.5K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.1M | 1.2M | +103.8K |
| PANAGORA ASSET MANAGEMENT INC | Sold Out | 102.1K | 0 | -102.1K |
| Militia Capital Management LLC | Sold Out | 100.5K | 0 | -100.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.0M | 2.1M | +100.4K |
| AMERIPRISE FINANCIAL INC | Reduced | 200.4K | 100.1K | -100.3K |
| Centiva Capital, LP | Sold Out | 100.0K | 0 | -100.0K |
| Jefferies Financial Group Inc. | Sold Out | 95.4K | 0 | -95.4K |
| Y-Intercept (Hong Kong) Ltd | Reduced | 275.0K | 181.5K | -93.6K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | New | 0 | 91.5K | +91.5K |
| Hennion & Walsh Asset Management, Inc. | Sold Out | 88.4K | 0 | -88.4K |
| Trexquant Investment LP | New | 0 | 86.4K | +86.4K |
| XTX Topco Ltd | Increased | 33.9K | 107.3K | +73.4K |
| Susquehanna Portfolio Strategies, LLC | Reduced | 186.6K | 119.5K | -67.1K |
| Birchview Capital, LP | Sold Out | 66.3K | 0 | -66.3K |
| Balyasny Asset Management L.P. | Increased | 11.7K | 74.0K | +62.4K |
| CITIGROUP INC | Increased | 25.7K | 78.0K | +52.4K |
| SIMPLEX TRADING, LLC | New | 0 | 49.2K | +49.2K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 305.3K | 256.7K | -48.6K |
| NewEdge Wealth, LLC | New | 0 | 47.7K | +47.7K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 85.2K | 37.7K | -47.6K |
| Hudson Bay Capital Management LP | Increased | 180.0K | 225.0K | +45.0K |
| ADAR1 Capital Management, LLC | Sold Out | 44.4K | 0 | -44.4K |
| Aquatic Capital Management LLC | New | 0 | 44.0K | +44.0K |
| ALPS ADVISORS INC | Sold Out | 42.0K | 0 | -42.0K |
| Ionic Capital Management LLC | Sold Out | 41.5K | 0 | -41.5K |
| FMR LLC | Increased | 311.3K | 342.9K | +31.6K |
| Palogic Value Management, L.P. | Increased | 30.0K | 60.1K | +30.1K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 21.7K | 51.5K | +29.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.