Ticker · CUSIP 75901B107

RGNX

REGENXBIO INC
···Share
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
$6.00$8.00$10.00$12.00$14.00$16.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
11112024Q12025Q4
Price is -34.1% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

15 events
  1. −8,882 shares · 2025Q4
    Position
  2. +68,388 shares · 2025Q4
    Position
  3. +128,007 shares · 2025Q4
    Position
  4. +33,384 shares · 2025Q4
    Position
  5. +3 shares · 2025Q4
    Position
  6. +24,310 shares · 2025Q4
    Position
  7. +72,307 shares · 2025Q4
    Position
  8. −24,345 shares · 2025Q4
    Position
  9. +23,600 shares · 2025Q4
    Position
  10. −25,290 shares · 2025Q3
    Position
  11. +359,459 shares · 2025Q3
    Position
  12. −53,665 shares · 2025Q3
    Position
  13. +11,012 shares · 2025Q3
    Position
  14. −425,714 shares · 2025Q3
    Position
  15. −147,546 shares · 2024Q3
    Position

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.
InvestorFirst inCost basisReturnPosition value today
AQR Capital Management2017Q2$8.67+9.4%$12.9M
Two Sigma Investments2017Q3$10.57-10.2%$1.2M
Renaissance Technologies2018Q1$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 Price2016Q1$21.63-56.1%$370K

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions3
Trimmed2
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined 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
#ManagerSharesValue
1AQR Capital Management1.36M$20M
2Renaissance Technologies333.1K$5M
3Izzy Englander
Millennium Mgmt
214.7K$3M
4Two Sigma Investments129.9K$2M
5D.E. Shaw & Co.68.4K$985K
6Ken Griffin
Citadel Advisors
46.6K$672K
7T. Rowe Price39.0K$562K
8Steve Cohen
Point72
33.4K$481K
9Paul Tudor Jones
Tudor Investment
24.3K$350K
10Ken Griffin
Citadel Advisors
21.7K$312K
11Ken Griffin
Citadel Advisors
11.7K$168K

Recent moves

20 transactions
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