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Ambarella
AMBA

Overview Fund Activity

294 hedge funds and large institutions have $1.77B invested in Ambarella in 2025 Q1 according to their latest regulatory filings, with 58 funds opening new positions, 113 increasing their positions, 93 reducing their positions, and 53 closing their positions.

Holders
294
Holders Change
-2
Holders Change %
-0.68%
% of All Funds
3.99%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
58
Increased
113
Reduced
93
Closed
53
Calls
$29.7M
Puts
$32.6M
Net Calls
-$2.86M
Net Calls Change
-$4M

Top Buyers

1
Jacobs Levy Equity Management
1
Jacobs Levy Equity Management
New Jersey
$32.6M
2
UBS AM
2
UBS AM
Illinois
$62M
3
OAM
3
Oberweis Asset Management
Illinois
$28.6M
4
TC
4
Tairen Capital
Hong Kong
$19.3M
5
Renaissance Technologies
5
Renaissance Technologies
New York
$18M

Top Sellers

1
William Blair Investment Management
1
William Blair Investment Management
Illinois
$320K
2
Point72 Asset Management
2
Point72 Asset Management
Connecticut
$4.77M
3
Balyasny Asset Management
3
Balyasny Asset Management
Illinois
$2.33M
4
Millennium Management
4
Millennium Management
New York
$45.8M
5
Goldman Sachs
5
Goldman Sachs
New York
$21.2M
Name Market Value Shares Shares
Change 		Shares
Change %
CSS
51
Cubist Systematic Strategies
Connecticut
$6.06M 120,432 +71,752 +147%
Ameriprise
52
Ameriprise
Minnesota
$6.05M 120,269 +115,644 +2,500%
Acadian Asset Management
53
Acadian Asset Management
Massachusetts
$5.73M 113,819 -7,742 -6%
Mitsubishi UFJ Asset Management
54
Mitsubishi UFJ Asset Management
Japan
$5.58M 110,887 +4,276 +4%
Tudor Investment Corp
55
Tudor Investment Corp
Connecticut
$5.42M 107,764 +107,764 New
Point72 Asset Management
56
Point72 Asset Management
Connecticut
$4.77M 94,857 -707,423 -88%
MCP
57
Meridiem Capital Partners
Texas
$4.52M 89,720 +89,720 New
Walleye Capital
58
Walleye Capital
New York
$4.4M 87,472 +87,472 New
EIM
59
Essex Investment Management
Massachusetts
$4.35M 86,431 -4,091 -5%
AQR Capital Management
60
AQR Capital Management
Connecticut
$4.27M 84,871 +47,414 +127%
TI
61
Trexquant Investment
Connecticut
$3.94M 78,240 +47,461 +154%
Swiss National Bank
62
Swiss National Bank
Switzerland
$3.86M 76,733 -300 -0.4%
SP
63
SWS Partners
Ohio
$3.82M 75,926 +8,518 +13%
Deutsche Bank
64
Deutsche Bank
Germany
$3.81M 75,714 +185 +0.2%
Russell Investments Group
65
Russell Investments Group
United Kingdom
$3.78M 75,169 +52,570 +233%
ACH
66
ArrowMark Colorado Holdings
Colorado
$3.77M 75,000 -10,000 -12%
HIM
67
Hillsdale Investment Management
Ontario, Canada
$3.69M 73,290 +3,900 +6%
Royal Bank of Canada
68
Royal Bank of Canada
Ontario, Canada
$3.26M 64,744 +1,307 +2%
Man Group
69
Man Group
United Kingdom
$3.22M 64,073 +49,079 +327%
Susquehanna International Group
70
Susquehanna International Group
Pennsylvania
$3.01M 59,835 +42,084 +237%
GCM
71
Graham Capital Management
Connecticut
$3.01M 59,728 +28,895 +94%
RhumbLine Advisers
72
RhumbLine Advisers
Massachusetts
$2.95M 58,571 +2,249 +4%
SCM
73
SG Capital Management
Illinois
$2.84M 56,355 -46,017 -45%
TC
74
TwinBeech Capital
New York
$2.78M 55,296 +55,296 New
SSA
75
Schonfeld Strategic Advisors
New York
$2.61M 51,760 +45,206 +690%
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