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Regenxbio
RGNX

Overview Fund Activity

164 hedge funds and large institutions have $298M invested in Regenxbio in 2025 Q1 according to their latest regulatory filings, with 34 funds opening new positions, 51 increasing their positions, 53 reducing their positions, and 44 closing their positions.

Holders
164
Holders Change
-13
Holders Change %
-7.34%
% of All Funds
2.23%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
34
Increased
51
Reduced
53
Closed
44
Calls
$566K
Puts
$818K
Net Calls
-$252K
Net Calls Change
-$1.16M

Top Buyers

1
2L
1
22NW LP
Washington
$4.78M
2
AQR Capital Management
2
AQR Capital Management
Connecticut
$4.44M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$24.8M
4
Citadel Advisors
4
Citadel Advisors
Florida
$7.35M
5
EAM
5
Exome Asset Management
New York
$2.9M

Top Sellers

1
State Street
1
State Street
Massachusetts
$7.62M
2
Millennium Management
2
Millennium Management
New York
$2.38M
3
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$0
4
RI
4
RTW Investments
New York
$0
5
SL
5
Siren LLC
Connecticut
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Millennium Management
26
Millennium Management
New York
$2.38M 332,829 -989,515 -75%
Ameriprise
27
Ameriprise
Minnesota
$2.37M 330,891 +46,370 +16%
Stifel Financial
28
Stifel Financial
Missouri
$2.35M 328,966 +140,122 +74%
Two Sigma Investments
29
Two Sigma Investments
New York
$2.34M 326,708 -62,720 -16%
Renaissance Technologies
30
Renaissance Technologies
New York
$2.12M 296,800 +25,500 +9%
Hudson Bay Capital Management
31
Hudson Bay Capital Management
Connecticut
$2.11M 295,000 -13,100 -4%
ACM
32
Aquilo Capital Management
California
$1.94M 271,302 -75,000 -22%
APM
33
Avidity Partners Management
Texas
$1.86M 260,000 -272,000 -51%
Marshall Wace
34
Marshall Wace
United Kingdom
$1.61M 225,580 +225,580 New
AI
35
ArchPoint Investors
Florida
$1.58M 221,528 – –
PAM
36
Panagora Asset Management
Massachusetts
$1.48M 206,378 -1,651 -0.8%
UBS Group
37
UBS Group
Switzerland
$1.43M 199,569 +6,266 +3%
Two Sigma Advisers
38
Two Sigma Advisers
New York
$1.41M 197,000 +17,000 +9%
Deutsche Bank
39
Deutsche Bank
Germany
$1.4M 195,202 -5,173 -3%
HF
40
HRT Financial
New York
$1.31M 183,424 -179,979 -50%
Fidelity Investments
41
Fidelity Investments
Massachusetts
$1.2M 168,384 +166,828 +10,722%
HWAM
42
Hennion & Walsh Asset Management
New Jersey
$1.14M 159,383 -5,346 -3%
Acadian Asset Management
43
Acadian Asset Management
Massachusetts
$1.12M 157,266 +157,266 New
CCIA
44
Campbell & Co Investment Adviser
Maryland
$1.11M 155,887 +155,887 New
Macquarie Group
45
Macquarie Group
Australia
$1.07M 149,000 – –
Bank of New York Mellon
46
Bank of New York Mellon
New York
$1.01M 141,400 -19,736 -12%
Susquehanna International Group
47
Susquehanna International Group
Pennsylvania
$1M 140,470 +31,666 +29%
GCP
48
GSA Capital Partners
United Kingdom
$939K 131,329 +114,043 +660%
NL
49
Nuveen LLC
North Carolina
$892K 124,700 +124,700 New
Barclays
50
Barclays
United Kingdom
$855K 119,659 -7,406 -6%
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