Ticker · CUSIP 75901B107
Holders (tracked)
11
Combined shares
2,284,773
Combined value
$32.90M
Last close
$9.49
Quarter
2025Q4
Price · 1Y$9.49+3.55 (+59.76%)H $15.98 · L $5.94 · Avg Vol 812K
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is -34.1% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−8,882 shares · 2025Q4Position
- D.E. Shaw & Co. opened position2026-02-17+68,388 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+128,007 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+33,384 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+3 shares · 2025Q4Position
- +24,310 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+72,307 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−24,345 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+23,600 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−25,290 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+359,459 shares · 2025Q3Position
- Two Sigma Investments trimmed2025-11-14−53,665 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+11,012 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−425,714 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-12−147,546 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of RGNX…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| AQR Capital Management | 2017Q2 | $8.67 | +9.4% | $12.9M |
| Two Sigma Investments | 2017Q3 | $10.57 | -10.2% | $1.2M |
| Renaissance Technologies | 2018Q1 | $10.71 | -11.4% | $3.2M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $11.82 | -19.7% | $206K |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $11.82 | -19.7% | $206K |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $11.82 | -19.7% | $206K |
| D.E. Shaw & Co. | 2017Q3 | $13.89 | -31.7% | $649K |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $13.91 | -31.8% | $2.0M |
| Steve Cohen (Point72) | 2017Q1 | $14.44 | -34.3% | $317K |
| Paul Tudor Jones (Tudor Investment) | 2017Q1 | $17.24 | -44.9% | $231K |
| T. Rowe Price | 2016Q1 | $21.63 | -56.1% | $370K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions3
- D.E. Shaw & Co.+68,388$985K
- Steve Cohen (Point72)+33,384$481K
- Paul Tudor Jones (Tudor Investment)+24,310$350K
Added to4
- Izzy Englander (Millennium Mgmt)+128,007$1.8M
- AQR Capital Management+72,307$1.0M
- Renaissance Technologies+23,600$340K
- T. Rowe Price+3$0
Trimmed2
- Two Sigma Investments−24,345$351K
- Ken Griffin (Citadel Advisors)−8,882$128K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 12 | $11.82B |
| 2022Q2 | 8 | $8.25B |
| 2022Q3 | 12 | $197.0M |
| 2022Q4 | 11 | $183.5M |
| 2023Q1 | 10 | $187.6M |
| 2023Q2 | 11 | $190.0M |
| 2023Q3 | 11 | $154.5M |
| 2023Q4 | 10 | $159.7M |
| 2024Q1 | 11 | $176.2M |
| 2024Q2 | 12 | $112.8M |
| 2024Q3 | 9 | $8.0M |
| 2024Q4 | 11 | $24.8M |
| 2025Q1 | 9 | $19.3M |
| 2025Q2 | 8 | $19.3M |
| 2025Q3 | 9 | $19.5M |
| 2025Q4 | 11 | $32.9M |
Who owns RGNX
11 super-investors · 2025Q4
Tracked stake
2.28M
shares
Combined value
$33M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added4Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | AQR Capital Management | 1.36M | $20M |
| 2 | Renaissance Technologies | 333.1K | $5M |
| 3 | Izzy Englander Millennium Mgmt | 214.7K | $3M |
| 4 | Two Sigma Investments | 129.9K | $2M |
| 5 | D.E. Shaw & Co. | 68.4K | $985K |
| 6 | Ken Griffin Citadel Advisors | 46.6K | $672K |
| 7 | T. Rowe Price | 39.0K | $562K |
| 8 | Steve Cohen Point72 | 33.4K | $481K |
| 9 | Paul Tudor Jones Tudor Investment | 24.3K | $350K |
| 10 | Ken Griffin Citadel Advisors | 21.7K | $312K |
| 11 | Ken Griffin Citadel Advisors | 11.7K | $168K |
Recent moves
20 transactions
- −8,882 · 2025Q4
- +68,388 · 2025Q4
- +3 · 2025Q4
- −24,345 · 2025Q4
- +33,384 · 2025Q4
- +128,007 · 2025Q4
- +24,310 · 2025Q4
- +72,307 · 2025Q4
- +23,600 · 2025Q4
- +11,012 · 2025Q3
- −25,290 · 2025Q3
- +359,459 · 2025Q3
- −53,665 · 2025Q3
- −425,714 · 2025Q3
- −147,546 · 2024Q3
- −118,757 · 2025Q2
- +1,780 · 2025Q2
- −24,123 · 2025Q2
- −220,880 · 2025Q2
- +309,601 · 2025Q2
Embed this chart
Paste this iframe anywhere to embed the live RGNX chart.
<iframe src="https://openstocks.me/embed/stock/RGNX" width="100%" height="480" frameborder="0" loading="lazy" title="RGNX chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>