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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.

New
Increased
Maintained
Reduced
Closed
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 Holding Trade Value Shares
Change 		Shares
Change %
PF
201
Phoenix Financial
Israel
$238K +$238K +4,700 New
PCP
202
Perbak Capital Partners
United Kingdom
$238K +$238K +4,721 New
FIA
203
FNY Investment Advisers
New York
$237K +$124K +2,476 +110%
WAM
204
Winslow Asset Management
Ohio
$234K +$12.8K +255 +6%
1C
205
111 Capital
France
$233K +$233K +4,635 New
QCM
206
Quantinno Capital Management
New York
$224K +$224K +4,460 New
Marshall Wace
207
Marshall Wace
United Kingdom
$223K -$9.97M -197,999 -98%
CIM
208
CIM Investment Management
Pennsylvania
$218K -$5.18K -103 -2%
PNC Financial Services Group
209
PNC Financial Services Group
Pennsylvania
$217K +$124K +2,464 +133%
PCM
210
Prelude Capital Management
New York
$215K +$215K +4,276 New
CCIA
211
Campbell & Co Investment Adviser
Maryland
$214K -$18.3K -363 -8%
KLCM
212
KG&L Capital Management
Louisiana
$212K +$212K +4,222 New
State of Wisconsin Investment Board
213
State of Wisconsin Investment Board
Wisconsin
$209K +$27.2K +540 +15%
Public Employees Retirement Association of Colorado
214
Public Employees Retirement Association of Colorado
Colorado
$208K – – –
MF
215
Magnetar Financial
Illinois
$202K -$303K -6,012 -60%
AIP
216
Ameritas Investment Partners
Nebraska
$200K – – –
PHK
217
Point72 Hong Kong
Hong Kong
$194K +$194K +3,848 New
QT
218
Quantbot Technologies
New York
$181K +$181K +3,604 New
Lazard Asset Management
219
Lazard Asset Management
New York
$173K +$64.5K +1,300 +59%
State of Tennessee, Department of Treasury
220
State of Tennessee, Department of Treasury
Tennessee
$147K +$147K +2,918 New
Bank Julius Baer & Co
221
Bank Julius Baer & Co
Switzerland
$131K -$24.7K -435 -16%
Skandinaviska Enskilda Banken (SEB)
222
Skandinaviska Enskilda Banken (SEB)
Sweden
$126K +$103K +2,045 +452%
FFA
223
Farther Finance Advisors
California
$96.7K +$757 +15 +0.8%
QL
224
Quarry LP
New York
$90.2K +$77.6K +1,541 +612%
Asset Management One
225
Asset Management One
Japan
$73.8K -$305K -6,062 -81%
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