암바렐라, Inc.
US ˙ NasdaqGS ˙ KYG037AX1015

SecurityAMBA / Ambarella, Inc.
InstitutionCommonwealth Equity Services, Inc
Latest Disclosed Ownership28,521 shares
Latest Disclosed Value $ 1,398,000
Commonwealth Equity Services, Inc reports 9.78% decrease in ownership of AMBA / Ambarella, Inc.

On February 16, 2018 - Commonwealth Equity Services, Inc filed a 13F-HR/A form disclosing ownership of 28,521 shares of Ambarella, Inc. (US:AMBA) valued at $1,397,814 USD as of September 30, 2017. The entity filed a previous 13F-HR/A on February 16, 2018 disclosing 31,612 shares of Ambarella, Inc.. This represents a change in shares of -9.78% during the quarter. The current value of the position is $1,811,654 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2018-02-16 2017-09-30 13F/A-1 AMBARELLA SHS G037AX101 28,521 -3,091 -9.78 1,398 -8.93 0.0084
2017-11-07 2017-09-30 13F AMBARELLA SHS G037AX101 28,520 -3,092 1,397
2018-02-16 2017-06-30 13F/A-1 AMBARELLA SHS G037AX101 31,612 -233 -0.73 1,535 -11.88 0.0098
2017-08-11 2017-06-30 13F AMBARELLA SHS G037AX101 31,612 -233 1,534
2018-02-16 2017-03-31 13F/A-1 AMBARELLA SHS G037AX101 31,845 -3,263 -9.29 1,742 -8.32 0.0117
2017-05-15 2017-03-31 13F AMBARELLA SHS G037AX101 31,845 -3,263 1,742
2018-02-16 2016-12-31 13F/A-1 AMBARELLA SHS G037AX101 35,108 -2,539 -6.74 1,900 -31.43 0.0140
2017-02-01 2016-12-31 13F AMBARELLA SHS G037AX101 35,108 -2,539 1,900
2016-10-25 2016-09-30 13F AMBARELLA SHS G037AX101 37,647 -5,591 -12.93 2,771 26.13 0.0220
2016-08-04 2016-06-30 13F AMBARELLA SHS G037AX101 43,238 -10,999 -20.28 2,197 -9.36 0.0185
2016-04-27 2016-03-31 13F AMBARELLA SHS G037AX101 54,237 -8,383 -13.39 2,424 -30.54 0.0216
2016-01-19 2015-12-31 13F AMBARELLA SHS G037AX101 62,620 7,761 14.15 3,490 10.09 0.0330
2015-10-27 2015-09-30 13F AMBARELLA SHS G037AX101 54,859 6,939 14.48 3,170 -35.58 0.0334
2015-07-28 2015-06-30 13F AMBARELLA SHS G037AX101 47,920 -5,001 -9.45 4,921 22.81 0.0489
2015-04-28 2015-03-31 13F AMBARELLA SHS G037AX101 52,921 820 1.57 4,007 51.61 0.0416
2015-01-13 2014-12-31 13F AMBARELLA SHS G037AX101 52,101 2,980 6.07 2,643 23.22 0.0296
2014-10-17 2014-09-30 13F AMBARELLA SHS G037AX101 49,121 -275 -0.56 2,145 39.29 0.0261
2014-07-23 2014-06-30 13F AMBARELLA SHS G037AX101 49,396 -2,180 -4.23 1,540 11.76 0.0187
2014-05-07 2014-03-31 13F AMBARELLA SHS G037AX101 51,576 27,802 116.94 1,378 70.97 0.0190
2014-02-11 2013-12-31 13F AMBARELLA SHS G037AX101 23,774 806
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.