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Ambarella
AMBA

Overview Fund Activity

186 hedge funds and large institutions have $764M invested in Ambarella in 2014 Q4 according to their latest regulatory filings, with 56 funds opening new positions, 46 increasing their positions, 69 reducing their positions, and 29 closing their positions.

Holders
186
Holders Change
+26
Holders Change %
+16.25%
% of All Funds
4.96%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.05%
New
56
Increased
46
Reduced
69
Closed
29
Calls
$53.2M
Puts
$119M
Net Calls
-$66.2M
Net Calls Change
+$35.1M

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$68.9M
2
Susquehanna International Group
2
Susquehanna International Group
Pennsylvania
$38.1M
3
State of Tennessee, Department of Treasury
3
State of Tennessee, Department of Treasury
Tennessee
$20.3M
4
ACM
4
Andor Capital Management
New York
$40.6M
5
Morgan Stanley
5
Morgan Stanley
New York
$36.9M

Top Sellers

1
Calamos Advisors
1
Calamos Advisors
Illinois
$0
2
RIM
2
RS Investment Management
California
$0
3
TA
3
Teachers Advisors
New York
$2.14M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$76.7M
5
RHJA
5
Rice Hall James & Associates
California
$18.2M
Name Market Value Shares Shares
Change 		Shares
Change %
ACM
201
Ativo Capital Management
Illinois
– – -12,370 Closed
Citadel Advisors
202
Citadel Advisors
Florida
– – -12,279 Closed
IRF
203
IBM Retirement Fund
New York
– – -10,000 Closed
ACM
204
Aviance Capital Management
Florida
– – -8,548 Closed
Nomura Holdings
205
Nomura Holdings
Japan
– – -6,661 Closed
QC
206
QCM Cayman
Texas
– – -6,608 Closed
CWM
207
Calamos Wealth Management
Illinois
– – -5,185 Closed
FAAS
208
First Allied Advisory Services
California
– – -4,935 Closed
SEC
209
Seven Eight Capital
New York
– – -2,286 Closed
Ameriprise
210
Ameriprise
Minnesota
– – -1,869 Closed
BNP Paribas Financial Markets
211
BNP Paribas Financial Markets
France
– – -1,703 Closed
JIC
212
Joel Isaacson & Co
New York
– – -1,000 Closed
SCA
213
Strategic Capital Alternatives
United States
– – -500 Closed
FNYS
214
First New York Securities
New York
– – -500 Closed
SFSIG
215
San Francisco Sentry Investment Group
California
– – -100 Closed
JT
216
Jump Trading
Illinois
– – – –
Simplex Trading
217
Simplex Trading
Illinois
– – – –
GIPM
218
G2 Investment Partners Management
New York
– – – –
HT
219
HAP Trading
New York
– – – –
D.E. Shaw & Co
220
D.E. Shaw & Co
New York
– – – –
EGM
221
Espalier Global Management
New York
– – – –
CBCM
222
Charter Bridge Capital Management
New York
– – – –
5 6 7 8
9