Young John Alexander

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

SEC source: 0001280263-26-000026 · edgardoc.xml · derivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,201

Underlying: Ordinary Shares · 15,201 shares

Expires 2029-03-15

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F3 · 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, 2029, 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, 2026 through January 31, 2029.

F3 · 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, 2029, 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, 2026 through January 31, 2029.

SEC source: 0001280263-26-000026 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,939

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2026.

SEC source: 0001280263-25-000070 · edgardoc.xml · nonDerivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,738

SEC source: 0001280263-25-000070 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,529

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

SEC source: 0001280263-25-000059 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,108

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

F2 · balance_after: Includes 223 shares acquired under the Company's employee stock purchase plan on September 15, 2025.

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.

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.

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.

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.

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.

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.

SEC source: 0001280263-24-000064 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,393

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

SEC source: 0001280263-24-000050 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,529

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

F2 · balance_after: Includes 254 shares acquired under the Company's employee stock purchase plan on September 16, 2024.

SEC source: 0001280263-24-000031 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,414

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

SEC source: 0001280263-24-000022 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,571

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

F2 · balance_after: Includes 218 shares acquired under the Company's employee stock purchase plan on March 15, 2024.

SEC source: 0001280263-24-000016 · edgardoc.xml · nonDerivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,899

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

SEC source: 0001280263-24-000016 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,603

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 2024 Annual Bonus Plan. Each restricted stock unit represents a contingent right to receive one Ordinary Share.

SEC source: 0001280263-24-000009 · edgardoc.xml · derivative · entry 2

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,845

Underlying: Ordinary Shares · 16,845 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.

F3 · 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, 2027, 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, 2024 through January 31, 2027.

F3 · 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, 2027, 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, 2024 through January 31, 2027.

SEC source: 0001280263-24-000009 · edgardoc.xml · nonDerivative · entry 1

Young John Alexander · CIK 0002009866 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,427

F1 · shares: The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2024.