RGNX Institutional Ownership
Who owns REGENXBIO Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 165 funds reported holding RGNX at Jun 30, 2026, together owning 64.2% of the company.
- ●86 buying vs 87 selling
- ●Held by funds -0.5 pts
- ▼Funds holding -13
- ●Superinvestors: 2 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 165 | 178 | −7.3% |
| In funds' top 10 | 2 | 2 | 0.0% |
| 13F shares | 42.4M | 42.7M | −0.7% |
| Held by funds | 64.2% | 64.6% | −0.5 pts |
| New positions | 24 | 28 | −14.3% |
| Increased | 62 | 59 | +5.1% |
| Reduced | 52 | 59 | −11.9% |
| Sold out | 35 | 26 | +34.6% |
| Calls (shares) | 210K | 100K | +110.0% |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | 0.00 | 0.00 | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in RGNX
All superinvestors →
Who owns RGNX
share of fund held shares- Index and passive funds38.0%
- Active managers and hedge funds41.3%
- Banks and brokers20.5%
- Pensions, insurers and other0.2%
The top 10 holders own 60.1% of all RGNX shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
28 funds changed their position- Assenagon Asset Management S.A.Trimmed−293K sh
- DekaBank Deutsche GirozentraleSold out−75K sh
- Maxi Investments CY LtdNew+50K sh
- Inscription Capital, LLCSold out−10K sh
- Achmea Investment Management B.V.New+15K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.69% | 6.4M | $76.6M | +615K |
| 2 | Redmile Group, LLC | 6.62% | 4.4M | $52.3M | 0 |
| 3 | State Street Corp | 4.50% | 3M | $35.6M | +240K |
| 4 | Jpmorgan Chase & Co | 3.35% | 2.2M | $26.2M | −1.3M |
| 5 | Vanguard Capital Management LLC | 3.19% | 2.1M | $25.2M | +100K |
| 6 | Morgan Stanley | 2.96% | 2M | $23.4M | −113K |
| 7 | Goldman Sachs Group Inc | 2.15% | 1.4M | $17M | −418K |
| 8 | AQR Capital Management LLC | 2.09% | 1.4M | $16.5M | +327K |
| 9 | Vanguard Portfolio Management LLC | 2.05% | 1.4M | $16.2M | +337K |
| 10 | Marshall Wace, LLP | 1.95% | 1.3M | $15.4M | +1.3M |
- Marshall Wace, LLP+1.3M sh+$15.4M
- Citadel Advisors LLC+669K sh+$8M
- BlackRock, Inc.+615K sh+$7.4M
- D. E. Shaw & Co., Inc.+427K sh+$5.1M
- Lazard Asset Management LLC+370K sh+$4.4M
- Vanguard Portfolio Management LLC+337K sh+$4M
- AQR Capital Management LLC+327K sh+$3.9M
- Quantinno Capital Management LP+256K sh+$3.1M
- Jpmorgan Chase & Co−1.3M sh−$15M
- Qube Research & Technologies Ltd−1.3M sh−$11M
- Integral Health Asset Management, LLC−700K sh−$8.4M
- Assenagon Asset Management S.A.−642K sh−$7.7M
- Goldman Sachs Group Inc−418K sh−$5M
- Dimensional Fund Advisors LP−279K sh−$3.3M
- Hrt Financial LP−351K sh−$2.9M
- Voss Capital, LP−296K sh−$2.5M
RGNX institutional ownership FAQ
Who owns the most RGNX stock?
In Q2 2026 13F filings the largest holder of RGNX was BlackRock, Inc., followed by Redmile Group, LLC and State Street Corp. Index fund managers are usually the biggest holders of large companies.
What percentage of RGNX is owned by institutions?
Funds that file 13F reports held 64.2% of RGNX's shares at Jun 30, 2026, compared with 64.6% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying RGNX?
In Q2 2026, 86 funds bought RGNX (24 of them new positions) and 87 sold (35 sold out completely). Among well known investors, 2 added and 2 cut. Our fund sentiment for RGNX is neutral.
What is RGNX's institutional put/call ratio?
Funds reported $0 of RGNX puts against $2.5M of calls, a put/call ratio of 0.00 (0.00 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this RGNX ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.