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Ambarella

AMBA

Market cap $3.2B

121 hedge funds and large institutions have $301M invested in Ambarella in 2013 Q4 according to their latest regulatory filings, with 48 funds opening new positions, 32 increasing their positions, 35 reducing their positions, and 21 closing their positions.

New

Increased

Maintained

Reduced

Closed

600% more funds holding in top 10

Funds holding in top 10: 1 → 7 (+6)

129% more first-time investments, than exits

New positions opened: 48 | Existing positions closed: 21

114% more capital invested

Capital invested by funds: $141M → $301M (+$160M)

27% more funds holding

Funds holding: 95 → 121 (+26)

9% less repeat investments, than reductions

Existing positions increased: 32 | Existing positions reduced: 35

47% less call options, than puts

Call options by funds: $21.1M | Put options by funds: $40.1M

Holders

121

Holders Change

+26

Holders Change %

+27.37%

% of All Funds

3.51%

Holding in Top 10

Holding in Top 10 Change

Holding in Top 10 Change %

+600%

% of All Funds

0.2%

New

Increased

Reduced

Closed

Calls

$21.1M

Puts

$40.1M

Net Calls

-$19M

Net Calls Change

-$11.1M

Top Buyers

1	RHJA Rice Hall James & Associates San Diego, California	+$14.2M
2	ACM Andor Capital Management Rye Brook, New York	+$11.5M
3	BIM Bogle Investment Management Newton Lower Falls, Massachusetts	+$8.11M
4	CPIM Columbia Partners Investment Management Alexandria, Virginia	+$6.08M
5	TA Teachers Advisors New York	+$4.2M

Top Sellers

1	PI Putnam Investments Boston, Massachusetts	-$6.21M
2	BA BlackRock Advisors Wilmington, Delaware	-$4.71M
3	PP PDT Partners New York	-$3.82M
4	Arrowstreet Capital Boston, Massachusetts	-$3.24M
5	Two Sigma Investments New York	-$2.76M

#	Name	Holding	Trade Value	Shares Change	Change in Stake
26	OAM 26 Oberweis Asset Management Lisle, Illinois	$3.13M	-$287K	-12,500	-12%
27	BA 27 BlackRock Advisors Wilmington, Delaware	$2.97M	-$4.71M	-205,421	-70%
28	PI 28 Putnam Investments Boston, Massachusetts	$2.72M	-$6.21M	-270,600	-77%
29	29 AQR Capital Management Greenwich, Connecticut	$2.53M	+$1.71M	+74,622	New
30	30 Jane Street New York	$2.51M	-$1.26M	-54,726	-42%
31	GC 31 Globeflex Capital San Diego, California	$2.49M	-$115K	-5,000	-6%
32	HLA 32 Hamilton Lane Advisors Conshohocken, Pennsylvania	$2.29M	-$14.3K	-623	-0.9%
33	CIA 33 Capital Impact Advisors Boston, Massachusetts	$2.19M	+$1.48M	+64,699	New
34	34 Wells Fargo San Francisco, California	$2.18M	+$223K	+9,714	+18%
35	35 Two Sigma Advisers New York	$2.11M	+$333K	+14,500	+30%
36	36 Bank of New York Mellon New York	$2M	-$14.4K	-627	-1%
37	RI 37 Redwood Investments Boston, Massachusetts	$1.91M	-$345K	-15,038	-21%
38	1CM 38 1492 Capital Management Milwaukee, Wisconsin	$1.84M	+$1.24M	+54,229	New
39	TC 39 TFS Capital West Chester, Pennsylvania	$1.82M	+$168K	+7,317	+16%
40	CAM 40 CG Asset Management New York	$1.77M	+$1.2M	+52,150	New
41	HW 41 Hancock Whitney Gulfport, Mississippi	$1.74M	+$1.18M	+51,260	New
42	42 Vanguard Group Malvern, Pennsylvania	$1.73M	+$87.5K	+3,815	+8%
43	BIM 43 BlackRock Investment Management Wilmington, Delaware	$1.72M	-$42.5K	-1,854	-4%
44	LCG 44 Lisanti Capital Growth New York	$1.72M	+$1.16M	+50,650	New
45	CCM 45 Cadence Capital Management Boston, Massachusetts	$1.7M	-$1.05M	-45,650	-48%
46	46 Two Sigma Investments New York	$1.7M	-$2.76M	-120,225	-71%
47	EI 47 EAM Investors Solana Beach, California	$1.54M	+$1.04M	+45,502	New
48	CONA 48 Capital One National Association New York	$1.38M	-$23.6K	-1,029	-2%
49	VAS 49 Valicenti Advisory Services Elmira, New York	$1.34M	-$1.02M	-44,250	-53%
50	GIPM 50 G2 Investment Partners Management New York	$1.33M	+$902K	+39,300	New