Ambarella, Inc.
IT ˙ BIT ˙ KYG037AX1015
€ 60,38 ↓ -6.96 (-10.34%)
2026-06-04
PREÇO DA AÇÃO
SecurityIT:1AMBA / Ambarella, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership1,976,464 shares
Latest Disclosed Value $ 101,738,485
State Street Corp reports 16.09% increase in ownership of 1AMBA / Ambarella, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,976,464 shares of Ambarella, Inc. (IT:1AMBA) valued at $87,952,648 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,702,493 shares of Ambarella, Inc.. This represents a change in shares of 16.09% during the quarter. The current value of the position is $119,338,896 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F AMBARELLA SHS G037AX101 1,976,464 273,971 16.09 101,738 -15.64 0.0035
2026-02-13 2025-12-31 13F AMBARELLA SHS G037AX101 1,702,493 21,638 1.29 120,605 -13.05 0.0040
2025-11-14 2025-09-30 13F AMBARELLA SHS G037AX101 1,680,855 -174,315 -9.40 138,704 13.17 0.0048
2025-08-14 2025-06-30 13F AMBARELLA SHS G037AX101 1,855,170 151,694 8.90 122,562 42.95 0.0046
2025-05-15 2025-03-31 13F AMBARELLA SHS G037AX101 1,703,476 116,802 7.36 85,736 -25.72 0.0035
2025-02-14 2024-12-31 13F AMBARELLA SHS G037AX101 1,586,674 -337,561 -17.54 115,415 6.34 0.0046
2024-11-14 2024-09-30 13F AMBARELLA SHS G037AX101 1,924,235 47,856 2.55 108,536 7.22 0.0044
2024-08-14 2024-06-30 13F AMBARELLA SHS G037AX101 1,876,379 -12,931 -0.68 101,231 5.54 0.0044
2024-05-15 2024-03-31 13F AMBARELLA SHS G037AX101 1,889,310 103,967 5.82 95,920 -12.34 0.0043
2024-02-14 2023-12-31 13F AMBARELLA SHS G037AX101 1,785,343 174,022 10.80 109,424 28.06 0.0053
2023-11-14 2023-09-30 13F AMBARELLA SHS G037AX101 1,611,321 152,292 10.44 85,448 -30.00 0.0047
2023-08-14 2023-06-30 13F AMBARELLA SHS G037AX101 1,459,029 24,745 1.73 122,077 9.94 0.0064
2023-05-15 2023-03-31 13F AMBARELLA SHS G037AX101 1,434,284 161,223 12.66 111,042 6.07 0.0063
2023-05-15 2022-12-31 13F/A-99 AMBARELLA SHS G037AX101 1,273,061 -67,712 -5.05 104,684 38.98 0.0062
2023-05-15 2022-12-31 13F AMBARELLA SHS G037AX101 1,273,061 -67,712 104,684 0.0062
2022-11-15 2022-09-30 13F AMBARELLA SHS G037AX101 1,340,773 102,099 8.24 75,325 -7.10 0.0048
2022-08-15 2022-06-30 13F AMBARELLA SHS G037AX101 1,238,674 56,106 4.74 81,084 -34.65 0.0049
2022-05-16 2022-03-31 13F AMBARELLA SHS G037AX101 1,182,568 194,915 19.74 124,075 -38.08 0.0061
2022-02-14 2021-12-31 13F AMBARELLA SHS G037AX101 987,653 -68,383 -6.48 200,385 21.84 0.0095
2021-11-15 2021-09-30 13F AMBARELLA SHS G037AX101 1,056,036 -17,496 -1.63 164,467 43.68 0.0087
2021-08-16 2021-06-30 13F AMBARELLA SHS G037AX101 1,073,532 -61,553 -5.42 114,471 0.46 0.0060
2021-07-09 2021-03-31 13F/A-1 AMBARELLA SHS G037AX101 1,135,085 -49,056 -4.14 113,951 4.80 0.0065
2021-05-17 2021-03-31 13F AMBARELLA SHS G037AX101 1,135,085 -49,056 113,951 0.0065
2021-02-16 2020-12-31 13F AMBARELLA SHS G037AX101 1,184,141 121,372 11.42 108,728 96.07 0.0067
2020-11-10 2020-09-30 13F AMBARELLA SHS G037AX101 1,062,769 -21,658 -2.00 55,455 11.65 0.0038
2020-08-14 2020-06-30 13F AMBARELLA SHS G037AX101 1,084,427 133,614 14.05 49,667 7.57 0.0036
2020-06-19 2020-03-31 13F/A-1 AMBARELLA SHS G037AX101 950,813 18,750 2.01 46,171 -18.20 0.0040
2020-05-11 2020-03-31 13F AMBARELLA SHS G037AX101 950,813 46,171
2020-02-06 2019-12-31 13F AMBARELLA SHS G037AX101 932,063 283,255 43.66 56,446 38.46 0.0039
2019-11-14 2019-09-30 13F AMBARELLA SHS G037AX101 648,808 32,932 5.35 40,768 50.00 0.0030
2019-08-14 2019-06-30 13F AMBARELLA SHS G037AX101 615,876 22,759 3.84 27,179 6.07 0.0020
2019-05-15 2019-03-31 13F AMBARELLA SHS G037AX101 593,117 2,228 0.38 25,623 23.97 0.0020
2019-02-12 2018-12-31 13F AMBARELLA SHS G037AX101 590,889 -15,386 -2.54 20,669 -11.86 0.0019
2018-11-09 2018-09-30 13F AMBARELLA Common equity shares G037AX101 606,275 19,103 3.25 23,451 3.44 0.0018
2018-08-14 2018-06-30 13F AMBARELLA Common equity shares G037AX101 587,172 -20,764 -3.42 22,671 -23.88 0.0019
2018-05-15 2018-03-31 13F AMBARELLA Common equity shares G037AX101 607,936 -10,915 -1.76 29,784 -18.08 0.0025
2018-02-14 2017-12-31 13F AMBARELLA Common equity shares G037AX101 618,851 25,747 4.34 36,358 25.06 0.0029
2017-11-14 2017-09-30 13F AMBARELLA Common equity shares G037AX101 593,104 -1,940 -0.33 29,072 0.62 0.0025
2017-08-14 2017-06-30 13F AMBARELLA Common equity shares G037AX101 595,044 33,237 5.92 28,894 -5.98 0.0026
2017-05-15 2017-03-31 13F AMBARELLA Common equity shares G037AX101 561,807 18,892 3.48 30,731 4.57 0.0027
2017-02-09 2016-12-31 13F AMBARELLA Common equity shares G037AX101 542,915 30,766 6.01 29,388 -22.05 0.0028
2017-01-13 2016-09-30 13F/A-1 AMBARELLA Common equity shares G037AX101 512,149 14,740 2.96 37,699 49.17 0.0038
2016-11-14 2016-09-30 13F AMBARELLA Common equity shares G037AX101 512,149 37,699
2016-08-12 2016-06-30 13F AMBARELLA Common equity shares G037AX101 497,409 1,935 0.39 25,272 14.13 0.0027
2016-05-20 2016-03-31 13F/A-1 AMBARELLA Common equity shares G037AX101 495,474 14,137 2.94 22,143 -17.46 0.0024
2016-05-12 2016-03-31 13F AMBARELLA Common equity shares G037AX101 495,474 22,143
2016-02-16 2015-12-31 13F AMBARELLA Common equity shares G037AX101 481,337 3,686 0.77 26,826 -2.81 0.0029
2015-11-16 2015-09-30 13F AMBARELLA Common equity shares G037AX101 477,651 4,108 0.87 27,603 -43.24 0.0032
2015-08-13 2015-06-30 13F AMBARELLA Common equity shares G037AX101 473,543 19,490 4.29 48,627 41.47 0.0052
2015-05-15 2015-03-31 13F AMBARELLA Common equity shares G037AX101 454,053 9,678 2.18 34,373 52.50 0.0035
2015-02-11 2014-12-31 13F AMBARELLA Common equity shares G037AX101 444,375 -6,204 -1.38 22,539 14.54 0.0022
2014-11-12 2014-09-30 13F/A-1 AMBARELLA Common equity shares G037AX101 450,579 87,970 24.26 19,677 74.04 0.0021
2014-11-10 2014-09-30 13F AMBARELLA Common equity shares G037AX101 450,579 19,677
2014-08-12 2014-06-30 13F AMBARELLA Common equity shares G037AX101 362,609 90,982 33.50 11,306 55.82 0.0012
2014-05-15 2014-03-31 13F/A-1 AMBARELLA Common equity shares G037AX101 271,627 -11,232 -3.97 7,256 -24.41 0.0008
2014-05-13 2014-03-31 13F AMBARELLA Common equity shares G037AX101 271,781 7,260
2014-02-06 2013-12-31 13F/A-1 AMBARELLA Common equity shares G037AX101 282,859 31,152 12.38 9,599 95.34 0.0011
2013-11-12 2013-09-30 13F AMBARELLA Common equity shares G037AX101 251,707 39,459 18.59 4,914 37.57 0.0006
2013-08-08 2013-06-30 13F AMBARELLA Common equity shares G037AX101 212,248 212,248 3,572 0.0005
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.