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Ambarella
AMBA

Overview Fund Activity

220 hedge funds and large institutions have $1.38B invested in Ambarella in 2017 Q4 according to their latest regulatory filings, with 52 funds opening new positions, 61 increasing their positions, 66 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
220
Holders Change
+16
Holders Change %
+7.84%
% of All Funds
5%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
52
Increased
61
Reduced
66
Closed
36
Calls
$210M
Puts
$136M
Net Calls
+$74.1M
Net Calls Change
-$62.6M

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$39.6M
2
CCM
2
Criterion Capital Management
California
$35.2M
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$34.9M
4
Balyasny Asset Management
4
Balyasny Asset Management
Illinois
$32.1M
5
Millennium Management
5
Millennium Management
New York
$27.1M

Top Sellers

1
Citadel Advisors
1
Citadel Advisors
Florida
$506K
2
Susquehanna International Group
2
Susquehanna International Group
Pennsylvania
$10.9M
3
VBA
3
Van Berkom & Associates
Quebec, Canada
$59.8M
4
Citigroup
4
Citigroup
New York
$714K
5
Deutsche Bank
5
Deutsche Bank
Germany
$15.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
TCSAM
226
Tyrus Capital S.A.M.
Monaco
– -$4.9M -100,000 Closed
CS
227
Candriam SCA
Luxembourg
– -$4.01M -81,725 Closed
NIPH
228
NN Investment Partners Holdings
Netherlands
– -$3.14M -64,721 Closed
MSTVIM
229
Messner & Smith Theme Value Investment Management
California
– -$2.58M -52,709 Closed
NFA
230
Nationwide Fund Advisors
Ohio
– -$1.46M -29,821 Closed
AWCI
231
Alpine Woods Capital Investors
New York
– -$1.43M -29,100 Closed
FMA
232
FNY Managed Accounts
New York
– -$1.37M -28,000 Closed
AQR Capital Management
233
AQR Capital Management
Connecticut
– -$1.22M -24,784 Closed
Simplex Trading
234
Simplex Trading
Illinois
– -$1.04M -21,299 Closed
OAM
235
Oxford Asset Management
United Kingdom
– -$1.02M -20,641 Closed
OAMG
236
Odey Asset Management Group
United Kingdom
– -$833K -17,000 Closed
HT
237
HAP Trading
New York
– -$581K -11,845 Closed
SAMH
238
Shanda Asset Management Holdings
British Virgin Islands
– -$490K -10,000 Closed
IHL
239
Investment House LLC
California
– -$372K -7,595 Closed
LA
240
Lucus Advisors
New York
– -$352K -7,175 Closed
NIT
241
NumerixS Investment Technologies
British Columbia, Canada
– -$309K -6,300 Closed
RJFSA
242
Raymond James Financial Services Advisors
Florida
– -$227K -4,635 Closed
QC
243
QCM Cayman
Texas
– -$215K -4,394 Closed
TI
244
Turner Investments
Pennsylvania
– -$172K -3,500 Closed
TRCT
245
Tower Research Capital (TRC)
New York
– -$156K -3,179 Closed
SG Americas Securities
246
SG Americas Securities
New York
– -$151K -3,073 Closed
FAM
247
Fred Alger Management
New York
– -$123K -2,500 Closed
SPM
248
Symmetry Peak Management
Pennsylvania
– -$123K -2,500 Closed
AA
249
AlphaMark Advisors
Kentucky
– -$29K -600 Closed
OHS
250
Odey Holdings (Switzerland)
Switzerland
– -$20K -400 Closed
7 8 9
10
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