Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| AMBARELLA INCAMBA · Entity 4248 | Director · Chief Technology Officer | September 17, 2025 | September 19, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
AMBARELLA INC
Report date September 17, 2025 · Filed September 19, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Ordinary SharesSEC Table I · non-derivative | Direct | 977,428 |
Reported balance
After 2025-09-17 transaction · row 1
1 source rowRow 1 · 2025-09-17 · Sale · Disposed 2,249 · Balance 977,428 F1: Shares sold to pay tax obligations resulting from the vesting of restricted stock units. |
Filing footnotes · ownership attribution and instrument terms
F1: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| December 16, 2016 Filed Dec 17, 2016 00:13 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 2,975 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000232 · edgardoc.xml · derivative · entry 4 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,825 Underlying: Ordinary Shares · 2,975 shares Expires 2024-09-07 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F4 · derivative.exercise_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2014. F4 · derivative.expiration_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2014. Read SEC document |
| December 16, 2016 Filed Dec 17, 2016 00:13 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 3,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000232 · edgardoc.xml · derivative · entry 3 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,500 Underlying: Ordinary Shares · 3,500 shares Expires 2023-08-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F3 · derivative.exercise_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2013. F3 · derivative.expiration_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2013. Read SEC document |
| December 16, 2016 Filed Dec 17, 2016 00:13 UTC | AMBARELLA INC AMBA · Entity 4248 | SaleOrdinary Shares | 5,083 | $54.21 | $275,549.43 |
DisclosureSEC source: 0001280263-16-000232 · edgardoc.xml · nonDerivative · entry 2 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 892,629 F2 · kind: Shares sold to pay tax obligations resulting from the vesting of restricted stock awards and restricted stock units. Read SEC document |
| December 16, 2016 Filed Dec 17, 2016 00:13 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 6,475 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-16-000232 · edgardoc.xml · nonDerivative · entry 1 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 897,712 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 21:02 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 2,975 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000204 · edgardoc.xml · derivative · entry 5 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 23,800 Underlying: Ordinary Shares · 2,975 shares Expires 2024-09-07 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F5 · derivative.exercise_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2014. F5 · derivative.expiration_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2014. Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 21:02 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 3,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000204 · edgardoc.xml · derivative · entry 4 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,000 Underlying: Ordinary Shares · 3,500 shares Expires 2023-08-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F4 · derivative.exercise_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2013. F4 · derivative.expiration_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2013. Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 21:02 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionRestricted Stock Units · Derivative | 764 | $0.00 | $0.00 |
DisclosureSEC source: 0001280263-16-000204 · edgardoc.xml · derivative · entry 3 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Ordinary Shares · 764 shares Expires 2022-08-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. F3 · derivative.exercise_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2012. F3 · derivative.expiration_date: The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2012. Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 21:02 UTC | AMBARELLA INC AMBA · Entity 4248 | SaleOrdinary Shares | 5,489 | $67.98 | $373,142.22 |
DisclosureSEC source: 0001280263-16-000204 · edgardoc.xml · nonDerivative · entry 2 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 891,237 F2 · kind: Shares sold to pay tax obligations resulting from the vesting of restricted stock award and restricted stock units. Read SEC document |
| September 16, 2016 Filed Sep 20, 2016 21:02 UTC | AMBARELLA INC AMBA · Entity 4248 | Exercise / conversionOrdinary Shares | 7,239 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001280263-16-000204 · edgardoc.xml · nonDerivative · entry 1 Kohn Leslie · CIK 0001558645 · Director · CTO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 896,726 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.