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Ambarella

323 hedge funds and large institutions have $2.62B invested in Ambarella in 2025 Q4 according to their latest regulatory filings, with 57 funds opening new positions, 101 increasing their positions, 118 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

305% more call options, than puts

Call options by funds: $178M | Put options by funds: $44.1M

2.74% more ownership

Funds ownership: 83.3%86.04% (+2.7%)

6% more first-time investments, than exits

New positions opened: 57 | Existing positions closed: 54

2% less funds holding

Funds holding: 329323 (-6)

11% less capital invested

Capital invested by funds: $2.93B → $2.62B (-$310M)

14% less repeat investments, than reductions

Existing positions increased: 101 | Existing positions reduced: 118

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
323
Holders Change
-6
Holders Change %
-1.82%
% of All Funds
3.93%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
57
Increased
101
Reduced
118
Closed
54
Calls
$178M
Puts
$44.1M
Net Calls
+$134M
Net Calls Change
+$41.8M
Name Holding Trade Value Shares
Change
Change in
Stake
KJHP
151
K.J. Harrison & Partners
Ontario, Canada
$708K +$808K +10,000 New
TMC
152
Themes Management Co
Connecticut
$700K +$798K +9,878 New
Two Sigma Investments
153
Two Sigma Investments
New York
$699K -$703K -8,700 -47%
FRM
154
Fox Run Management
Connecticut
$692K -$765K -9,463 -49%
BS
155
Banco Santander
Spain
$669K
LOAMU
156
Lombard Odier Asset Management (USA)
New York
$663K +$356K +4,404 +89%
VIP
157
Vista Investment Partners
Oklahoma
$660K +$49K +606 +7%
SIP
158
Stoneridge Investment Partners
Pennsylvania
$659K +$544K +6,732 +262%
Walleye Capital
159
Walleye Capital
New York
$649K +$452K +5,599 +157%
CAPTRUST Financial Advisors
160
CAPTRUST Financial Advisors
North Carolina
$648K +$111K +1,368 +18%
KFA
161
Krane Funds Advisors
New York
$627K +$715K +8,848 New
Wealth Enhancement Advisory Services
162
Wealth Enhancement Advisory Services
Minnesota
$625K -$49.7K -615 -7%
KK
163
KLP Kapitalforvaltning
Norway
$623K
MNBTD
164
Moody National Bank Trust Division
Texas
$612K -$352K -4,355 -34%
Zurich Cantonal Bank
165
Zurich Cantonal Bank
Switzerland
$611K +$72.6K +898 +12%
State of Wisconsin Investment Board
166
State of Wisconsin Investment Board
Wisconsin
$588K -$252K -3,120 -27%
GI
167
GAMCO Investors
Connecticut
$577K -$570K -7,052 -46%
AAM
168
Azzad Asset Management
Virginia
$571K -$309K -3,825 -32%
Cerity Partners
169
Cerity Partners
New York
$558K -$283K -3,504 -31%
Simplex Trading
170
Simplex Trading
Illinois
$554K +$205K +2,534 +48%
Capstone Investment Advisors
171
Capstone Investment Advisors
New York
$538K +$174K +2,155 +40%
Osaic Holdings
172
Osaic Holdings
Arizona
$533K -$45.5K -563 -7%
OA
173
Oak Associates
Ohio
$525K -$31.5K -390 -5%
Mariner
174
Mariner
Kansas
$522K -$96.7K -1,197 -14%
VOYA Investment Management
175
VOYA Investment Management
Georgia
$516K -$6.06K -75 -1%