암바렐라, Inc.
US ˙ NasdaqGS ˙ KYG037AX1015

SecurityAMBA / Ambarella, Inc.
InstitutionFirst Horizon Advisors, Inc.
Latest Disclosed Ownership570 shares
Latest Disclosed Value $ 37,657
First Horizon Advisors, Inc. reports 5.32% decrease in ownership of AMBA / Ambarella, Inc.

On August 6, 2025 - First Horizon Advisors, Inc. filed a 13F-HR form disclosing ownership of 570 shares of Ambarella, Inc. (US:AMBA) valued at $37,657 USD as of June 30, 2025. The entity filed a previous 13F-HR on April 28, 2025 disclosing 602 shares of Ambarella, Inc.. This represents a change in shares of -5.32% during the quarter. The current value of the position is $41,068 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)
2025-08-06 2025-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 570 -32 -5.32 38 23.33 0.0004
2025-04-28 2025-03-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 602 -98 -14.00 30 -40.00 0.0009
2025-02-03 2024-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 700 0 0.00 51 28.21 0.0014
2024-11-08 2024-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 700 0 0.00 39 5.41 0.0011
2024-07-19 2024-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 700 0 0.00 38 5.71 0.0011
2024-04-26 2024-03-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 700 169 31.83 36 9.38 0.0011
2024-02-06 2023-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 531 136 34.43 33 60.00 0.0011
2023-10-27 2023-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 395 -27 -6.40 21 -42.86 0.0008
2023-08-03 2023-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 422 41 10.76 35 20.69 0.0012
2023-05-15 2023-03-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 381 0 0.00 29 -6.45 0.0011
2023-02-10 2022-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 381 0 0.00 31 47.62 0.0012
2022-11-09 2022-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 381 0 0.00 21 -12.50 0.0008
2022-08-02 2022-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 381 381 24 0.0009
2022-05-10 2022-03-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 0 -144 -100.00 0 -100.00
2022-02-09 2021-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 144 -107 -42.63 29 -25.64 0.0009
2021-11-15 2021-09-30 13F/A-1 AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 251 -112 -30.85 39 2.63 0.0013
2021-11-09 2021-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 21 -342 3 0.0000
2021-08-09 2021-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 363 0 0.00 38 5.56 0.0020
2021-05-11 2021-03-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 363 0 0.00 36 9.09 0.0021
2021-02-11 2020-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 363 -73 -16.74 33 50.00 0.0022
2020-11-12 2020-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 436 0 0.00 22 15.79 0.0016
2020-07-31 2020-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 436 0 0.00 19 -9.52 0.0015
2020-05-05 2020-03-31 13F AMBARELLA INC COM USD0.00045 Common Stock G037AX101 436 -171 -28.17 21 -41.67 0.0020
2020-01-07 2019-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 607 0 0.00 36 -5.26 0.0027
2019-10-23 2019-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 607 0 0.00 38 46.15 0.0030
2019-08-05 2019-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 607 0 0.00 26 0.00 0.0020
2019-04-26 2019-03-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 607 0 0.00 26 23.81 0.0021
2019-02-11 2018-12-31 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 607 -1,700 -73.69 21 -76.40 0.0019
2018-11-08 2018-09-30 13F/A-2 AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 2,307 -500 -17.81 89 -17.59 0.0069
2018-11-05 2018-09-30 13F/A-1 AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 2,307 0 300 0.0168
2018-11-05 2018-09-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 607 -2,200 234 0.0216
2018-08-06 2018-06-30 13F AMBARELLA INC COM USD0.00045 COMMON STOCK G037AX101 2,807 607 27.59 108 0.00 0.0091
2018-05-02 2018-03-31 13F AMBARELLA COMMON STOCK G037AX101 2,200 0 0.00 108 -16.28 0.0105
2018-01-25 2017-12-31 13F AMBARELLA0INC COMMON0STOCK G037AX101 2,200 0 0.00 129 19.44 0.0123
2017-11-09 2017-09-30 13F AMBARELLA COMMON STOCK G037AX101 2,200 0 0.00 108 0.93 0.0111
2017-08-14 2017-06-30 13F AMBARELLA COMMON STOCK G037AX101 2,200 0 0.00 107 -10.83 0.0116
2017-05-02 2017-03-31 13F AMBARELLA COMMON STOCK G037AX101 2,200 0 0.00 120 -25.93 0.0137
2017-02-13 2016-12-31 13F AMBARELLA COMMON STOCK G037AX101 2,200 0 0.00 162 0.00 0.0206
2016-10-28 2016-09-30 13F AMBARELLA COMMON STOCK G037AX101 2,200 0 0.00 162 44.64 0.0206
2016-07-29 2016-06-30 13F AMBARELLA COMMON STOCK G037AX101 2,200 2,200 112 0.0152
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.