Tapewire

Nasdaq · USD

AMBA

AMBARELLA INC

Export transactions ↓
Tapewire entity
4248
SEC CIK
0001280263
Parsed reports
756

Last 12 months

Inside the activity.

0 purchase rows · 44 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202509
Jan 202601
Feb 202600
Mar 2026013
Apr 202601
May 202604
Jun 202607
Jul 202603
Aug 202600
Sep 202606
Oct 202600

Latest available

Insider transactions

JSON API
Reset

Purchases/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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
June 25, 2025 Filed Jun 27, 2025 16:14 UTC SaleOrdinary Shares 1,000 $62.58 $62,580.00
Disclosure

SEC source: 0001280263-25-000031 · edgardoc.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,281

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2024.

Read SEC document
June 17, 2025 Filed Jun 20, 2025 20:16 UTC SaleOrdinary Shares 2,435 $52.26 $127,253.10
Disclosure

SEC source: 0001280263-25-000030 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,451

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
June 17, 2025 Filed Jun 20, 2025 20:16 UTC
Day ChristopherVP, Marketing
SaleOrdinary Shares 342 $52.26 $17,872.92
Disclosure

SEC source: 0001280263-25-000029 · edgardoc.xml · nonDerivative · entry 1

Day Christopher · CIK 0001558685 · VP, Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,099

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
June 17, 2025 Filed Jun 20, 2025 20:16 UTC
Ju Chi-HongSr. Vice President, Systems
SaleOrdinary Shares 1,108 $52.26 $57,904.08
Disclosure

SEC source: 0001280263-25-000026 · edgardoc.xml · nonDerivative · entry 1

Ju Chi-Hong · CIK 0001882831 · Sr. Vice President, Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,032

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
June 17, 2025 Filed Jun 20, 2025 20:16 UTC
Kohn LeslieDirector · Chief Technology Officer
SaleOrdinary Shares 1,715 $52.26 $89,625.90
Disclosure

SEC source: 0001280263-25-000027 · edgardoc.xml · nonDerivative · entry 1

Kohn Leslie · CIK 0001558645 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 979,677

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
June 17, 2025 Filed Jun 20, 2025 20:16 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,601 $52.26 $83,668.26
Disclosure

SEC source: 0001280263-25-000028 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,696

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
June 17, 2025 Filed Jun 20, 2025 20:16 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 4,677 $52.26 $244,420.02
Disclosure

SEC source: 0001280263-25-000025 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 793,634

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 25, 2025 Filed Mar 26, 2025 21:49 UTC SaleOrdinary Shares 500 $55.50 $27,750.00
Disclosure

SEC source: 0001280263-25-000024 · edgardoc.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,281

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2024.

Read SEC document
March 18, 2025 Filed Mar 20, 2025 20:44 UTC SaleOrdinary Shares 2,103 $55.02 $115,707.06
Disclosure

SEC source: 0001280263-25-000023 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,886

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

F2 · balance_after: Includes 234 shares acquired under the Company's employee stock purchase plan on March 17, 2025.

Read SEC document
March 18, 2025 Filed Mar 20, 2025 20:44 UTC
Day ChristopherVP, Marketing
SaleOrdinary Shares 479 $55.02 $26,354.58
Disclosure

SEC source: 0001280263-25-000022 · edgardoc.xml · nonDerivative · entry 1

Day Christopher · CIK 0001558685 · VP, Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,441

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

F2 · balance_after: Includes 234 shares acquired under the Company's employee stock purchase plan on March 17, 2025.

Read SEC document
March 18, 2025 Filed Mar 20, 2025 20:43 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,468 $55.02 $80,769.36
Disclosure

SEC source: 0001280263-25-000021 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,297

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

F2 · balance_after: Includes 234 shares acquired under the Company's employee stock purchase plan on March 17, 2025.

Read SEC document
March 18, 2025 Filed Mar 20, 2025 20:43 UTC
Kohn LeslieDirector · Chief Technology Officer
SaleOrdinary Shares 1,584 $55.02 $87,151.68
Disclosure

SEC source: 0001280263-25-000020 · edgardoc.xml · nonDerivative · entry 1

Kohn Leslie · CIK 0001558645 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 981,392

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 18, 2025 Filed Mar 20, 2025 20:43 UTC
Ju Chi-HongSr. Vice President, Systems
SaleOrdinary Shares 1,034 $55.02 $56,890.68
Disclosure

SEC source: 0001280263-25-000019 · edgardoc.xml · nonDerivative · entry 1

Ju Chi-Hong · CIK 0001882831 · Sr. Vice President, Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,140

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

F2 · balance_after: Includes 234 shares acquired under the Company's employee stock purchase plan on March 17, 2025.

Read SEC document
March 18, 2025 Filed Mar 20, 2025 20:43 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 3,194 $55.02 $175,733.88
Disclosure

SEC source: 0001280263-25-000018 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 798,311

F1 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

F2 · balance_after: Includes 234 shares acquired under the Company's employee stock purchase plan on March 17, 2025.

Read SEC document
March 17, 2025 Filed Mar 18, 2025 20:51 UTC Disposition to issuerOrdinary Shares 422 $55.90 $23,591.49
Disclosure

SEC source: 0001280263-25-000017 · edgardoc.xml · nonDerivative · entry 1

Schwarting Elizabeth M · CIK 0001814048 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,480

Read SEC document
March 06, 2025 Filed Mar 7, 2025 21:23 UTC SaleOrdinary Shares 2,663 $55.11 $146,757.93
Disclosure

SEC source: 0001280263-25-000016 · edgardoc.xml · nonDerivative · entry 3

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,755

F3 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 06, 2025 Filed Mar 7, 2025 21:22 UTC
Day ChristopherVP, Marketing
SaleOrdinary Shares 834 $55.11 $45,961.74
Disclosure

SEC source: 0001280263-25-000015 · edgardoc.xml · nonDerivative · entry 2

Day Christopher · CIK 0001558685 · VP, Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,686

F2 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 06, 2025 Filed Mar 7, 2025 21:22 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 2,108 $55.11 $116,171.88
Disclosure

SEC source: 0001280263-25-000013 · edgardoc.xml · nonDerivative · entry 3

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,531

F3 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 06, 2025 Filed Mar 7, 2025 21:22 UTC
Kohn LeslieDirector · Chief Technology Officer
SaleOrdinary Shares 2,316 $55.11 $127,634.76
Disclosure

SEC source: 0001280263-25-000012 · edgardoc.xml · nonDerivative · entry 3

Kohn Leslie · CIK 0001558645 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 982,976

F3 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 06, 2025 Filed Mar 7, 2025 21:22 UTC
Ju Chi-HongSr. Vice President, Systems
SaleOrdinary Shares 1,859 $55.11 $102,449.49
Disclosure

SEC source: 0001280263-25-000011 · edgardoc.xml · nonDerivative · entry 3

Ju Chi-Hong · CIK 0001882831 · Sr. Vice President, Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,940

F3 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 06, 2025 Filed Mar 7, 2025 21:21 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 4,104 $55.11 $226,171.44
Disclosure

SEC source: 0001280263-25-000010 · edgardoc.xml · nonDerivative · entry 3

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 801,271

F3 · shares: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:23 UTC GrantOrdinary Shares 4,637 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000016 · edgardoc.xml · nonDerivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,418

F2 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:22 UTC
Chen Yun-LungVP, Business Development
GrantOrdinary Shares 2,249 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000014 · edgardoc.xml · nonDerivative · entry 2

Chen Yun-Lung · CIK 0001602676 · VP, Business Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,143

F2 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:22 UTC
Day ChristopherVP, Marketing
GrantOrdinary Shares 1,990 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000015 · edgardoc.xml · nonDerivative · entry 1

Day Christopher · CIK 0001558685 · VP, Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,520

F1 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:22 UTC
Lee Chan WChief Operating Officer
GrantOrdinary Shares 5,465 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000013 · edgardoc.xml · nonDerivative · entry 2

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,639

F2 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:22 UTC
Kohn LeslieDirector · Chief Technology Officer
GrantOrdinary Shares 6,056 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000012 · edgardoc.xml · nonDerivative · entry 2

Kohn Leslie · CIK 0001558645 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 985,292

F2 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:22 UTC
Ju Chi-HongSr. Vice President, Systems
GrantOrdinary Shares 4,773 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000011 · edgardoc.xml · nonDerivative · entry 2

Ju Chi-Hong · CIK 0001882831 · Sr. Vice President, Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,799

F2 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 05, 2025 Filed Mar 7, 2025 21:21 UTC
Wang Feng-MingDirector · CEO
GrantOrdinary Shares 11,024 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000010 · edgardoc.xml · nonDerivative · entry 2

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 805,375

F2 · shares: Represents an award of fully-vested restricted stock units (RSUs) issued to reporting person as payment of reporting person's annual bonus under the company's previously established Fiscal Year 2025 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:23 UTC GrantPerformance Stock Units · Derivative 12,388 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000016 · edgardoc.xml · derivative · entry 4

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,388

Underlying: Ordinary Shares · 12,388 shares

Expires 2028-03-15

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F5 · derivative.exercise_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

F5 · derivative.expiration_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:23 UTC GrantOrdinary Shares 12,388 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000016 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,781

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2025.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Chen Yun-LungVP, Business Development
GrantPerformance Stock Units · Derivative 5,868 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000014 · edgardoc.xml · derivative · entry 3

Chen Yun-Lung · CIK 0001602676 · VP, Business Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,868

Underlying: Ordinary Shares · 5,868 shares

Expires 2028-03-15

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F4 · derivative.exercise_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

F4 · derivative.expiration_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Chen Yun-LungVP, Business Development
GrantOrdinary Shares 5,868 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000014 · edgardoc.xml · nonDerivative · entry 1

Chen Yun-Lung · CIK 0001602676 · VP, Business Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,894

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2025.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Lee Chan WChief Operating Officer
GrantPerformance Stock Units · Derivative 18,256 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000013 · edgardoc.xml · derivative · entry 4

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,256

Underlying: Ordinary Shares · 18,256 shares

Expires 2028-03-15

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F5 · derivative.exercise_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

F5 · derivative.expiration_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Lee Chan WChief Operating Officer
GrantOrdinary Shares 18,256 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000013 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,174

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2025.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Kohn LeslieDirector · Chief Technology Officer
GrantPerformance Stock Units · Derivative 19,560 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000012 · edgardoc.xml · derivative · entry 4

Kohn Leslie · CIK 0001558645 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,560

Underlying: Ordinary Shares · 19,560 shares

Expires 2028-03-15

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F5 · derivative.exercise_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

F5 · derivative.expiration_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Kohn LeslieDirector · Chief Technology Officer
GrantOrdinary Shares 19,560 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000012 · edgardoc.xml · nonDerivative · entry 1

Kohn Leslie · CIK 0001558645 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 979,236

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2025.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Ju Chi-HongSr. Vice President, Systems
GrantPerformance Stock Units · Derivative 12,388 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000011 · edgardoc.xml · derivative · entry 5

Ju Chi-Hong · CIK 0001882831 · Sr. Vice President, Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,388

Underlying: Ordinary Shares · 12,388 shares

Expires 2028-03-15

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F5 · derivative.exercise_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

F5 · derivative.expiration_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:22 UTC
Ju Chi-HongSr. Vice President, Systems
GrantOrdinary Shares 12,388 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000011 · edgardoc.xml · nonDerivative · entry 1

Ju Chi-Hong · CIK 0001882831 · Sr. Vice President, Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,026

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2025.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:21 UTC
Wang Feng-MingDirector · CEO
GrantPerformance Stock Units · Derivative 39,120 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000010 · edgardoc.xml · derivative · entry 4

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,120

Underlying: Ordinary Shares · 39,120 shares

Expires 2028-03-15

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F5 · derivative.exercise_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

F5 · derivative.expiration_date: Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2028, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2025 through January 31, 2028.

Read SEC document
February 28, 2025 Filed Mar 7, 2025 21:21 UTC
Wang Feng-MingDirector · CEO
GrantOrdinary Shares 39,120 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000010 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 794,351

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2025.

Read SEC document
January 16, 2025 Filed Jan 17, 2025 21:38 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $77.21 $77,210.00
Disclosure

SEC source: 0001280263-25-000005 · edgardoc.xml · nonDerivative · entry 2

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 15, 2025 Filed Jan 17, 2025 21:38 UTC GiftOrdinary Shares 1,648 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000006 · edgardoc.xml · nonDerivative · entry 2

RICHARDSON DAVID JEFFREY · CIK 0001329724 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · by Family Trust

Disclosed balance after: 23,281

F1 · shares: Represents ordinary shares transferred to a family trust of which the reporting person is a co-trustee (the "Family Trust"). The reporting person disclaims Section 16 beneficial ownership of such shares except to the extent, if any, of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.

Read SEC document
January 15, 2025 Filed Jan 17, 2025 21:38 UTC GiftOrdinary Shares 1,648 $0.00 $0.00
Disclosure

SEC source: 0001280263-25-000006 · edgardoc.xml · nonDerivative · entry 1

RICHARDSON DAVID JEFFREY · CIK 0001329724 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,531

F1 · shares: Represents ordinary shares transferred to a family trust of which the reporting person is a co-trustee (the "Family Trust"). The reporting person disclaims Section 16 beneficial ownership of such shares except to the extent, if any, of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.

Read SEC document
January 15, 2025 Filed Jan 17, 2025 21:38 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $75.90 $75,900.00
Disclosure

SEC source: 0001280263-25-000005 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 14, 2025 Filed Jan 14, 2025 21:42 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $75.68 $75,680.00
Disclosure

SEC source: 0001280263-25-000004 · edgardoc.xml · nonDerivative · entry 3

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 13, 2025 Filed Jan 14, 2025 21:42 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $73.50 $73,500.00
Disclosure

SEC source: 0001280263-25-000004 · edgardoc.xml · nonDerivative · entry 2

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 10, 2025 Filed Jan 14, 2025 21:42 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $74.12 $74,120.00
Disclosure

SEC source: 0001280263-25-000004 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 08, 2025 Filed Jan 9, 2025 00:09 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $73.48 $73,480.00
Disclosure

SEC source: 0001280263-25-000003 · edgardoc.xml · nonDerivative · entry 3

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 07, 2025 Filed Jan 9, 2025 00:09 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $78.73 $78,730.00
Disclosure

SEC source: 0001280263-25-000003 · edgardoc.xml · nonDerivative · entry 2

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

Read SEC document
January 06, 2025 Filed Jan 9, 2025 00:09 UTC
Lee Chan WChief Operating Officer
SaleOrdinary Shares 1,000 $79.15 $79,150.00
Disclosure

SEC source: 0001280263-25-000003 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,918

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 2, 2024.

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.