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Regenxbio

164 hedge funds and large institutions have $298M invested in Regenxbio in 2025 Q1 according to their latest regulatory filings, with 33 funds opening new positions, 52 increasing their positions, 53 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more funds holding in top 10

Funds holding in top 10: 23 (+1)

2% less repeat investments, than reductions

Existing positions increased: 52 | Existing positions reduced: 53

1.77% less ownership

Funds ownership: 84.96%83.18% (-1.8%)

7% less funds holding

Funds holding: 177164 (-13)

8% less capital invested

Capital invested by funds: $325M → $298M (-$27.4M)

25% less first-time investments, than exits

New positions opened: 33 | Existing positions closed: 44

31% less call options, than puts

Call options by funds: $566K | Put options by funds: $818K

Holders
164
Holders Change
-13
Holders Change %
-7.34%
% of All Funds
2.2%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
33
Increased
52
Reduced
53
Closed
44
Calls
$566K
Puts
$818K
Net Calls
-$252K
Net Calls Change
-$1.16M
Name Holding Trade Value Shares
Change
Change in
Stake
Millennium Management
26
Millennium Management
New York
$2.38M -$7.36M -989,515 -75%
Ameriprise
27
Ameriprise
Minnesota
$2.37M +$345K +46,370 +16%
Stifel Financial
28
Stifel Financial
Missouri
$2.35M +$1.04M +140,122 +74%
Two Sigma Investments
29
Two Sigma Investments
New York
$2.34M -$467K -62,720 -16%
Renaissance Technologies
30
Renaissance Technologies
New York
$2.12M +$190K +25,500 +9%
Hudson Bay Capital Management
31
Hudson Bay Capital Management
Connecticut
$2.11M -$97.4K -13,100 -4%
ACM
32
Aquilo Capital Management
California
$1.94M -$558K -75,000 -22%
APM
33
Avidity Partners Management
Texas
$1.86M -$2.02M -272,000 -51%
Marshall Wace
34
Marshall Wace
United Kingdom
$1.61M +$1.68M +225,580 New
AI
35
ArchPoint Investors
Florida
$1.58M
PAM
36
Panagora Asset Management
Massachusetts
$1.48M -$12.3K -1,651 -0.8%
UBS Group
37
UBS Group
Switzerland
$1.43M +$46.6K +6,266 +3%
Two Sigma Advisers
38
Two Sigma Advisers
New York
$1.41M +$126K +17,000 +9%
Deutsche Bank
39
Deutsche Bank
Germany
$1.4M -$38.5K -5,173 -3%
HF
40
HRT Financial
New York
$1.31M -$1.34M -179,979 -50%
Fidelity Investments
41
Fidelity Investments
Massachusetts
$1.2M +$1.24M +166,828 +10,722%
HWAM
42
Hennion & Walsh Asset Management
New Jersey
$1.14M -$39.8K -5,346 -3%
Acadian Asset Management
43
Acadian Asset Management
Massachusetts
$1.12M +$1.17M +157,266 New
CCIA
44
Campbell & Co Investment Adviser
Maryland
$1.11M +$1.16M +155,887 New
Macquarie Group
45
Macquarie Group
Australia
$1.06M
Bank of New York Mellon
46
Bank of New York Mellon
New York
$1.01M -$147K -19,736 -12%
Susquehanna International Group
47
Susquehanna International Group
Pennsylvania
$1M +$236K +31,666 +29%
GCP
48
GSA Capital Partners
United Kingdom
$939K +$848K +114,043 +660%
N
49
Nuveen
North Carolina
$892K +$92.1K +12,384 +11%
Barclays
50
Barclays
United Kingdom
$856K -$55.1K -7,406 -6%