Tapewire

Nasdaq · USD

AMBA

AMBARELLA INC

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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

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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
September 25, 2026 Filed Sep 28, 2026 21:06 UTC SaleOrdinary Shares 250 $70.76 $17,690.00
Disclosure

SEC source: 0001280263-26-000077 · edgardoc.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,930

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on September 22, 2025.

Read SEC document
September 18, 2026 Filed Sep 21, 2026 21:57 UTC SaleOrdinary Shares 1,896 $67.28 $127,562.88
Disclosure

SEC source: 0001280263-26-000075 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 107,806

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on January 15, 2026.

Read SEC document
September 17, 2026 Filed Sep 18, 2026 20:51 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 6,086 $64.83 $394,555.38
Disclosure

SEC source: 0001280263-26-000073 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 767,759

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

F2 · balance_after: Includes 238 shares acquired under the Company's employee stock purchase plan on September 15, 2026.

Read SEC document
September 17, 2026 Filed Sep 18, 2026 20:50 UTC
Lee Chan WChief Operations Officer
SaleOrdinary Shares 2,893 $64.83 $187,553.19
Disclosure

SEC source: 0001280263-26-000071 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,443

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

F2 · balance_after: Includes 238 shares acquired under the Company's employee stock purchase plan on September 15, 2026.

Read SEC document
September 17, 2026 Filed Sep 18, 2026 20:50 UTC
Ju Chi-HongSenior VP, Systems & GM
SaleOrdinary Shares 2,009 $64.83 $130,243.47
Disclosure

SEC source: 0001280263-26-000072 · edgardoc.xml · nonDerivative · entry 1

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,153

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

F2 · balance_after: Includes 238 shares acquired under the Company's employee stock purchase plan on September 15, 2026.

Read SEC document
September 17, 2026 Filed Sep 18, 2026 20:50 UTC SaleOrdinary Shares 3,126 $64.83 $202,658.58
Disclosure

SEC source: 0001280263-26-000070 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,702

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

F2 · balance_after: Includes 238 shares acquired under the Company's employee stock purchase plan on September 15, 2026.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 21:36 UTC
Hu ChenmingDirector
GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000065 · edgardoc.xml · nonDerivative · entry 1

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,667

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:49 UTC GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000062 · edgardoc.xml · nonDerivative · entry 1

Bryant Gregory M · CIK 0001788745 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,608

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:48 UTC GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000061 · edgardoc.xml · nonDerivative · entry 1

Breithaupt Chantelle Yvette · CIK 0001850596 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,091

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:48 UTC GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000060 · edgardoc.xml · nonDerivative · entry 1

Schwarting Elizabeth M · CIK 0001814048 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,841

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:48 UTC GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000059 · edgardoc.xml · nonDerivative · entry 1

Hon Hsiao-Wuen · CIK 0001715983 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,927

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:48 UTC GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000058 · edgardoc.xml · nonDerivative · entry 1

RICHARDSON DAVID JEFFREY · CIK 0001329724 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,649

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
September 08, 2026 Filed Sep 10, 2026 20:47 UTC GrantOrdinary Shares 3,151 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000057 · edgardoc.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,180

F1 · shares: Effective as of September 8, 2026, the Board of Directors approved an annual restricted stock unit grant of 3,151 Ordinary Shares to each independent director. The RSU grant vests as to 1/4th of the Ordinary Shares each three months following the vesting start date of September 15, 2026, so as to be 100% vested on September 15, 2027, subject to continued service with the Company.

Read SEC document
July 09, 2026 Filed Jul 10, 2026 20:55 UTC
Chen Yun-LungVP, Business Dev. & Marketing
SaleOrdinary Shares 5,958 $78.66 $468,656.28
Disclosure

SEC source: 0001280263-26-000055 · edgardoc.xml · nonDerivative · entry 1

Chen Yun-Lung · CIK 0001602676 · VP, Business Dev. & Marketing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,557

Read SEC document
July 01, 2026 Filed Jul 2, 2026 20:57 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 16,250 $90.08 $1,463,800.00
Disclosure

SEC source: 0001280263-26-000052 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 773,607

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025.

F2 · price: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $90.00 to $90.50 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Read SEC document
July 01, 2026 Filed Jul 2, 2026 20:58 UTC
Ju Chi-HongSenior VP, Systems & GM
SaleOrdinary Shares 10,000 $88.84 $888,400.00
Disclosure

SEC source: 0001280263-26-000053 · edgardoc.xml · nonDerivative · entry 1

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,924

F1 · price: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $88.79 to $88.97 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Read SEC document
June 26, 2026 Filed Jun 30, 2026 21:17 UTC SaleOrdinary Shares 250 $62.01 $15,502.50
Disclosure

SEC source: 0001280263-26-000049 · edgardoc.xml · nonDerivative · entry 1

PAISLEY CHRISTOPHER B · CIK 0001189229 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,029

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on September 22, 2025.

Read SEC document
June 17, 2026 Filed Jun 18, 2026 20:55 UTC SaleOrdinary Shares 1,847 $66.98 $123,712.06
Disclosure

SEC source: 0001280263-26-000047 · edgardoc.xml · nonDerivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 112,590

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on January 15, 2026.

Read SEC document
June 17, 2026 Filed Jun 18, 2026 20:55 UTC SaleOrdinary Shares 3,186 $67.87 $216,233.82
Disclosure

SEC source: 0001280263-26-000047 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 114,437

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

Read SEC document
June 17, 2026 Filed Jun 18, 2026 20:55 UTC
Lee Chan WChief Operations Officer
SaleOrdinary Shares 2,951 $67.87 $200,284.37
Disclosure

SEC source: 0001280263-26-000046 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 157,098

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

Read SEC document
June 17, 2026 Filed Jun 18, 2026 20:54 UTC
Wang Feng-MingDirector · CEO
GiftOrdinary Shares 10,000 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000044 · edgardoc.xml · nonDerivative · entry 2

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 789,857

F2 · kind: The shares were donated to a charitable donor advised fund (DAF).

Read SEC document
June 17, 2026 Filed Jun 18, 2026 20:54 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 6,204 $67.87 $421,065.48
Disclosure

SEC source: 0001280263-26-000044 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 799,857

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

Read SEC document
June 17, 2026 Filed Jun 18, 2026 20:54 UTC
Ju Chi-HongSenior VP, Systems & GM
SaleOrdinary Shares 2,017 $67.87 $136,893.79
Disclosure

SEC source: 0001280263-26-000045 · edgardoc.xml · nonDerivative · entry 1

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,924

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

Read SEC document
June 12, 2026 Filed Jun 16, 2026 20:57 UTC
Chen Yun-LungVP, Business Development and
SaleOrdinary Shares 9,856 $67.06 $660,943.36
Disclosure

SEC source: 0001280263-26-000039 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,515

F1 · price: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $67.06 to $67.07 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Read SEC document
May 26, 2026 Filed May 29, 2026 00:02 UTC Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 400 $0.00 Strike: $55.80 $0.00
Disclosure

SEC source: 0001280263-26-000037 · edgardoc.xml · derivative · entry 3

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,600

Underlying: Ordinary Shares · 400 shares

Expires 2027-03-27

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.

F2 · derivative.exercise_date: 25% of the Shares subject to the option vest on March 27, 2018 and 1/48 of the shares vest monthly thereafter.

Read SEC document
May 26, 2026 Filed May 29, 2026 00:02 UTC SaleOrdinary Shares 400 $96.00 $38,400.00
Disclosure

SEC source: 0001280263-26-000037 · edgardoc.xml · nonDerivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,623

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on January 15, 2026.

Read SEC document
May 26, 2026 Filed May 29, 2026 00:02 UTC Exercise / conversionOrdinary Shares 400 $55.80 $22,320.00
Disclosure

SEC source: 0001280263-26-000037 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 118,023

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.

Read SEC document
May 26, 2026 Filed May 29, 2026 00:02 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 9,150 $92.05 $842,245.61
Disclosure

SEC source: 0001280263-26-000036 · edgardoc.xml · nonDerivative · entry 3

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 806,061

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025.

F4 · price: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $92.00 to $92.50 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Read SEC document
May 26, 2026 Filed May 29, 2026 00:02 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 6,065 $91.23 $553,306.31
Disclosure

SEC source: 0001280263-26-000036 · edgardoc.xml · nonDerivative · entry 2

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 815,211

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025.

F3 · price: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $91.00 to $91.98 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Read SEC document
May 26, 2026 Filed May 29, 2026 00:02 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 17,285 $90.38 $1,562,202.74
Disclosure

SEC source: 0001280263-26-000036 · edgardoc.xml · nonDerivative · entry 1

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 821,276

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025.

F2 · price: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $90.00 to $$90.98 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4.

Read SEC document
April 21, 2026 Filed Apr 22, 2026 23:33 UTC SaleOrdinary Shares 1,971 $60.00 $118,260.00
Disclosure

SEC source: 0001280263-26-000033 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,623

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on January 15, 2026.

Read SEC document
March 19, 2026 Filed Mar 19, 2026 22:42 UTC SaleOrdinary Shares 3,038 $54.14 $164,477.32
Disclosure

SEC source: 0001280263-26-000031 · edgardoc.xml · nonDerivative · entry 4

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,594

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

Read SEC document
March 19, 2026 Filed Mar 19, 2026 22:41 UTC
Lee Chan WChief Operations Officer
SaleOrdinary Shares 3,641 $54.14 $197,123.74
Disclosure

SEC source: 0001280263-26-000029 · edgardoc.xml · nonDerivative · entry 4

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,049

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

Read SEC document
March 19, 2026 Filed Mar 19, 2026 22:39 UTC
Ju Chi-HongSenior VP, Systems & GM, Asia
SaleOrdinary Shares 2,155 $54.14 $116,671.70
Disclosure

SEC source: 0001280263-26-000028 · edgardoc.xml · nonDerivative · entry 4

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM, Asia

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,941

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

Read SEC document
March 19, 2026 Filed Mar 19, 2026 22:39 UTC
Wang Feng-MingDirector · CEO
SaleOrdinary Shares 8,083 $54.14 $437,613.62
Disclosure

SEC source: 0001280263-26-000027 · edgardoc.xml · nonDerivative · entry 4

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 838,561

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

Read SEC document
March 18, 2026 Filed Mar 19, 2026 22:42 UTC GrantOrdinary Shares 5,560 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000031 · edgardoc.xml · nonDerivative · entry 3

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,632

F4 · 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 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 18, 2026 Filed Mar 19, 2026 22:42 UTC
Chen Yun-LungVP, Business Development and M
GrantOrdinary Shares 2,849 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000030 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,371

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 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 18, 2026 Filed Mar 19, 2026 22:41 UTC
Lee Chan WChief Operations Officer
GrantOrdinary Shares 7,320 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000029 · edgardoc.xml · nonDerivative · entry 3

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,690

F4 · 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 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 18, 2026 Filed Mar 19, 2026 22:39 UTC
Ju Chi-HongSenior VP, Systems & GM, Asia
GrantOrdinary Shares 5,930 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000028 · edgardoc.xml · nonDerivative · entry 3

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM, Asia

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,096

F4 · 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 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 18, 2026 Filed Mar 19, 2026 22:39 UTC
Wang Feng-MingDirector · CEO
GrantOrdinary Shares 15,686 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000027 · edgardoc.xml · nonDerivative · entry 3

Wang Feng-Ming · CIK 0001558686 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 846,644

F4 · 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 2026 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

Read SEC document
March 17, 2026 Filed Mar 19, 2026 22:42 UTC Exercise / conversionPerformance Stock Units · Derivative 3,556 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000031 · edgardoc.xml · derivative · entry 5

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 3,556 shares

Expires 2026-03-15

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: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

F5 · derivative.expiration_date: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

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March 17, 2026 Filed Mar 19, 2026 22:42 UTC SaleOrdinary Shares 4,577 $52.77 $241,528.29
Disclosure

SEC source: 0001280263-26-000031 · edgardoc.xml · nonDerivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,072

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

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March 17, 2026 Filed Mar 19, 2026 22:42 UTC Exercise / conversionOrdinary Shares 3,556 Not disclosed Not disclosed
Disclosure

SEC source: 0001280263-26-000031 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,649

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.

F2 · balance_after: Includes 154 shares acquired under the Company's employee stock purchase plan on March 16, 2026.

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March 17, 2026 Filed Mar 19, 2026 22:42 UTC
Chen Yun-LungVP, Business Development and M
Exercise / conversionPerformance Stock Units · Derivative 4,651 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000030 · edgardoc.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 4,651 shares

Expires 2026-03-15

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: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

F3 · derivative.expiration_date: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

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March 17, 2026 Filed Mar 19, 2026 22:42 UTC
Chen Yun-LungVP, Business Development and M
Exercise / conversionOrdinary Shares 4,651 Not disclosed Not disclosed
Disclosure

SEC source: 0001280263-26-000030 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,522

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
March 17, 2026 Filed Mar 19, 2026 22:41 UTC
Lee Chan WChief Operations Officer
Exercise / conversionPerformance Stock Units · Derivative 13,678 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000029 · edgardoc.xml · derivative · entry 5

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 13,678 shares

Expires 2026-03-15

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: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

F5 · derivative.expiration_date: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

Read SEC document
March 17, 2026 Filed Mar 19, 2026 22:41 UTC
Lee Chan WChief Operations Officer
SaleOrdinary Shares 6,729 $52.77 $355,089.33
Disclosure

SEC source: 0001280263-26-000029 · edgardoc.xml · nonDerivative · entry 2

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,370

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

Read SEC document
March 17, 2026 Filed Mar 19, 2026 22:41 UTC
Lee Chan WChief Operations Officer
Exercise / conversionOrdinary Shares 13,678 Not disclosed Not disclosed
Disclosure

SEC source: 0001280263-26-000029 · edgardoc.xml · nonDerivative · entry 1

Lee Chan W · CIK 0001882825 · Chief Operations Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,099

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.

F2 · balance_after: Includes 154 shares acquired under the Company's employee stock purchase plan on March 16, 2026.

Read SEC document
March 17, 2026 Filed Mar 19, 2026 22:39 UTC
Ju Chi-HongSenior VP, Systems & GM, Asia
Exercise / conversionPerformance Stock Units · Derivative 9,553 $0.00 $0.00
Disclosure

SEC source: 0001280263-26-000028 · edgardoc.xml · derivative · entry 6

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM, Asia

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 9,553 shares

Expires 2026-03-15

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: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

F5 · derivative.expiration_date: On April 3, 2023, reporting person was granted a performance-based RSU award covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, the award would vest in full on March 15, 2026. In addition, the number of shares subject to the award could be decreased by up to 100% or increased by up to 150% of the Target RSU Number, based on attainment of specified levels of the Company's total stockholder return and revenue growth over the period of February 1, 2023 through January 31, 2026 (the "TSR Period"). As a result of the Company's performance over the TSR Period, the number of shares that vested was 100% of the Target RSU Number.

Read SEC document
March 17, 2026 Filed Mar 19, 2026 22:39 UTC
Ju Chi-HongSenior VP, Systems & GM, Asia
SaleOrdinary Shares 4,729 $52.77 $249,549.33
Disclosure

SEC source: 0001280263-26-000028 · edgardoc.xml · nonDerivative · entry 2

Ju Chi-Hong · CIK 0001882831 · Senior VP, Systems & GM, Asia

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 164,166

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

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.