Ambarella, Inc.
US ˙ NasdaqGS ˙ KYG037AX1015

SecurityAMBA / Ambarella, Inc.
InstitutionAperio Group, LLC
Latest Disclosed Ownership3,387 shares
Latest Disclosed Value $ 311,000
Aperio Group, LLC ownership in AMBA / Ambarella, Inc.

On February 5, 2021 - Aperio Group, LLC filed a 13F-HR form disclosing ownership of 3,387 shares of Ambarella, Inc. (US:AMBA) valued at $310,994 USD as of December 31, 2020. The entity filed a previous 13F-HR on November 6, 2019 disclosing 0 shares of Ambarella, Inc.. The current value of the position is $215,142 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)
2021-02-05 2020-12-31 13F AMBARELLA SHS G037AX101 3,387 3,387 311 0.0009
2019-11-06 2019-09-30 13F AMBARELLA SHS G037AX101 0 -2,016 -100.00 0 -100.00
2019-07-30 2019-06-30 13F AMBARELLA SHS G037AX101 2,016 2,016 89 0.0004
2019-05-03 2018-06-30 13F/A-1 AMBARELLA INC SHS COMMON G037AX101 0 -4,370 -100.00 0 -100.00
2019-05-01 2018-03-31 13F/A-1 AMBARELLA SHS G037AX101 4,370 -444 -9.22 214 -24.38 0.0011
2018-05-08 2018-03-31 13F AMBARELLA INC SHS COMMON G037AX101 4,370 -444 214
2019-05-01 2017-12-31 13F/A-1 AMBARELLA SHS G037AX101 4,814 466 10.72 283 32.86 0.0015
2018-02-02 2017-12-31 13F AMBARELLA INC SHS COMMON G037AX101 4,814 466 283
2019-05-01 2017-09-30 13F/A-1 AMBARELLA SHS G037AX101 4,348 4,348 -9.68 213 -24.73 0.0012
2017-10-25 2017-09-30 13F AMBARELLA INC SHS COMMON G037AX101 4,348 4,348 213
2019-04-22 2017-03-31 13F/A-1 AMBARELLA INC SHS COMMON G037AX101 0 -4,564 -100.00 0 -100.00
2019-04-22 2016-12-31 13F/A-1 AMBARELLA SHS G037AX101 4,564 -225 -4.70 247 -30.03 0.0019
2017-02-14 2016-12-31 13F AMBARELLA INC SHS COMMON G037AX101 4,564 -225 247
2019-04-12 2016-09-30 13F/A-1 AMBARELLA SHS G037AX101 4,789 378 8.57 353 57.59 0.0026
2016-11-01 2016-09-30 13F AMBARELLA INC SHS COMMON G037AX101 4,789 378 353
2019-04-12 2016-06-30 13F/A-1 AMBARELLA SHS G037AX101 4,411 4,411 -7.89 224 -36.54 0.0018
2016-08-12 2016-06-30 13F AMBARELLA INC SHS COMMON G037AX101 4,411 4,411 224
2016-04-28 2016-03-31 13F AMBARELLA INC SHS COMMON G037AX101 0 0 0 0.0000
2016-01-21 2015-12-31 13F AMBARELLA INC SHS COMMON G037AX101 0 -4,237 -100.00 0 -100.00
2015-10-19 2015-09-30 13F AMBARELLA INC SHS COMMON G037AX101 4,237 -1,681 -28.40 245 -59.70 0.0025
2015-07-29 2015-06-30 13F AMBARELLA INC SHS COMMON G037AX101 5,918 1,681 608 0.0063
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.