Porshnev Peter

SEC source: 0001805363-26-000006 · form4-03242026_040301.xml · nonDerivative · entry 3

Porshnev Peter · CIK 0001805363 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 195,059.306

F3 · shares: Represents 593 shares purchased under the Veeco Employee Stock Purchase Plan on March 20, 2026.

SEC source: 0001805363-26-000006 · form4-03242026_040301.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,466.306

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001805363-26-000006 · form4-03242026_040301.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 205,863.306

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 · shares: On March 13, 2023, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right was subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which was based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represented the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. The common stock award reflected in this filing represents achievement at the 172.5% level, which was realized.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · derivative · entry 9

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,600

Underlying: common stock · 2,800 shares

Expires not disclosed

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.expiration_date: These restricted units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · derivative · entry 8

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,667

Underlying: common stock · 2,667 shares

Expires not disclosed

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.expiration_date: These restricted units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · nonDerivative · entry 6

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 178,953.306

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding due upon the vesting of restricted stock.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · nonDerivative · entry 5

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,139.306

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 · shares: These restricted units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · nonDerivative · entry 4

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,339.306

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding due upon the vesting of restricted stock.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · nonDerivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 178,485.306

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 · shares: These restricted units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · derivative · entry 7

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: common stock · 2,800 shares

Expires not disclosed

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.expiration_date: These restricted units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,818.306

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding due upon the vesting of restricted stock.

SEC source: 0001805363-26-000004 · form4-03172026_040301.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,153.306

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 · shares: These restricted units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001805363-26-000002 · form4-03122026_040301.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,353.306

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 · shares: These shares were acquired pursuant to a restricted stock award under the Veeco Instruments Inc. 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to one-third of such shares on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continued service through such dates.

SEC source: 0001805363-26-000008 · form4a-05082026_040501.xml · derivative · entry 2

Porshnev Peter · CIK 0001805363 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,267

Underlying: common stock · 32,000 shares

Expires not disclosed

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_price: Each restricted stock unit represents a contingent right to receive one share of Veeco common stock.

F3 · derivative.exercise_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

F3 · derivative.expiration_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001415889-25-019041 · form4-07022025_040701.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,353.306

F1 · shares: Represents 925.926 shares purchased under the Veeco Employee Stock Purchase Plan on June 30, 2025.

SEC source: 0001415889-25-009029 · form4-03262025_040303.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,427.38

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-25-009029 · form4-03262025_040303.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,504.38

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 · shares: On March 17, 2022, the reporting person was granted the contingent right to receive 16,250 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. The common stock award reflected in this filing represents achievement at the 88.3% level, which was realized.

SEC source: 0001415889-25-008396 · form4-03182025_040304.xml · nonDerivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,155.38

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-25-008396 · form4-03182025_040304.xml · derivative · entry 6

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,334

Underlying: common stock · 2,666 shares

Expires not disclosed

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.expiration_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001415889-25-008396 · form4-03182025_040304.xml · derivative · entry 5

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,600

Underlying: common stock · 15,600 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Veeco common stock.

F4 · derivative.exercise_date: On March 14, 2025, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

F4 · derivative.expiration_date: On March 14, 2025, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

SEC source: 0001415889-25-008396 · form4-03182025_040304.xml · derivative · entry 4

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,400

Underlying: common stock · 8,400 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Veeco common stock.

F1 · derivative.exercise_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

F1 · derivative.expiration_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001415889-25-008396 · form4-03182025_040304.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,391.38

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-25-008396 · form4-03182025_040304.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,594.381

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 · shares: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001415889-25-008101 · form4-03142025_040301.xml · derivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,800

Underlying: common stock · 2,800 shares

Expires not disclosed

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.expiration_date: These shares were acquired pursuant to a restricted stock award under the Veeco Instructions Inc. 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to one-third of such shares on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continued service through such dates.

SEC source: 0001415889-25-008101 · form4-03142025_040301.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,928.381

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-25-008101 · form4-03142025_040301.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,263.381

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 · shares: These shares were acquired pursuant to a restricted stock award under the Veeco Instructions Inc. 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to one-third of such shares on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continued service through such dates.

SEC source: 0001415889-24-019522 · form4-07122024_040702.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,463.381

F1 · shares: Represents 818.599 shares purchased under the Veeco Employee Stock Purchase Plan on June 28, 2024.

SEC source: 0001415889-24-014520 · form4-05242024_040536.xml · derivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2024-06-30

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_date: The option was granted on July 1, 2014 and became exercisable with respect to 1/3 of such shares on each of the first, second and third anniversaries of the date of grant.

SEC source: 0001415889-24-014520 · form4-05242024_040536.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,644.782

SEC source: 0001415889-24-014520 · form4-05242024_040536.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,644.782

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: 0001415889-24-008742 · form4-03202024_040301.xml · nonDerivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,644.782

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-24-008742 · form4-03202024_040301.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,151.782

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 · shares: On March 12, 2021, the reporting person was granted the contingent right to receive 19,500 performance-based restricted stock units ("PRSUs"). This contingent right was subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which was based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represented the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. The common stock award reflected in this filing represents achievement at the 200% level, which was realized.

SEC source: 0001415889-24-008742 · form4-03202024_040301.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,151.782

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-24-008281 · form4-03182024_040301.xml · derivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: common stock · 24,000 shares

Expires not disclosed

F3 · derivative.exercise_price: On March 14, 2024, the reporting person was granted the contingent right to receive 24,000 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

F3 · derivative.exercise_date: On March 14, 2024, the reporting person was granted the contingent right to receive 24,000 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

F3 · derivative.expiration_date: On March 14, 2024, the reporting person was granted the contingent right to receive 24,000 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

SEC source: 0001415889-24-008281 · form4-03182024_040301.xml · derivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,000

Underlying: common stock · 8,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Veeco common stock.

F2 · derivative.exercise_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

F2 · derivative.expiration_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001415889-24-007985 · form4-03142024_040302.xml · derivative · entry 4

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,600

Underlying: common stock · 2,800 shares

Expires not disclosed

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.expiration_date: These shares were acquired pursuant to a restricted stock award under the Veeco Instructions Inc. 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to one-third of such shares on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continued service through such dates.

SEC source: 0001415889-24-007985 · form4-03142024_040302.xml · nonDerivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,685.782

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-24-007985 · form4-03142024_040302.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,158.782

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 · shares: These shares were acquired pursuant to a restricted stock award under the Veeco Instructions Inc. 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to one-third of such shares on each of the first, second and third anniversaries of the grant date, subject to the reporting person's continued service through such dates.

SEC source: 0001415889-24-007985 · form4-03142024_040302.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,358.782

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-23-011050 · form4-07122023_040701.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,325.782

F1 · shares: Represents 1,354.97 shares purchased under the Veeco Employee Stock Purchase Plan on June 30, 2023.

SEC source: 0001415889-23-005444 · form4-03272023_040302.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,970.81

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-23-005444 · form4-03272023_040302.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,743.81

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 · shares: On March 17, 2020, the reporting person was granted the contingent right to receive 19,500 performance-based restricted stock units ("PRSUs"). This contingent right was subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which was based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represented the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. The common stock award reflected in this filing represents achievement at the 191.2%, level, which was realized.

SEC source: 0001415889-23-005278 · form4-03212023_080316.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,459.81

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-23-004951 · form4-03152023_040301.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,679.811

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-23-004951 · form4-03152023_040301.xml · derivative · entry 4

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,600

Underlying: common stock · 15,600 shares

Expires not disclosed

F4 · derivative.exercise_price: On March 13, 2023, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

F4 · shares: On March 13, 2023, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

F4 · derivative.exercise_date: On March 13, 2023, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

F4 · derivative.expiration_date: On March 13, 2023, the reporting person was granted the contingent right to receive 15,600 performance-based restricted stock units ("PRSUs"). This contingent right is subject to the reporting person's continued service with the Company and the achievement of three-year performance criteria, which is based on the Company's total shareholder return relative to other companies in the Russell 2000 as specified in the award agreement (the "Criteria"). Each PRSU represents the contingent right to receive one share of Veeco common stock. The award, if earned, could range from 50% to 200% of the granted PRSUs based on the achievement of the Criteria. If the Criteria are not achieved, the award will be forfeited. Subject to having been earned, vested shares will be delivered to the reporting person on the date specified in the award agreement, but in no case earlier than the third anniversary of the grant date.

SEC source: 0001415889-23-004951 · form4-03152023_040301.xml · derivative · entry 3

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,400

Underlying: common stock · 8,400 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Veeco common stock.

F3 · derivative.exercise_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

F3 · derivative.expiration_date: These restricted stock units (RSUs) were acquired pursuant to an award under the Veeco Instruments 2019 Stock Incentive Plan and are subject to certain restrictions. These restrictions will lapse with respect to 1/3 of such RSUs on each of the first, second and third anniversaries of the date of grant. Vested shares of Veeco common stock will be delivered to the reporting person on the vesting date.

SEC source: 0001415889-23-004951 · form4-03152023_040301.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,648.811

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-22-009720 · form4-09162022_010954.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,044.811

F1 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

SEC source: 0001415889-22-007558 · form4-07082022_010704.xml · nonDerivative · entry 1

Porshnev Peter · CIK 0001805363 · SVP, UNIFIED ENGINEERING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,433.811

F1 · shares: Represents 805.672 shares purchased under the Veeco Employee Stock Purchase Plan on June 30, 2022.

SEC source: 0001179110-22-002390 · edgar.xml · nonDerivative · entry 2

Porshnev Peter · CIK 0001805363 · SVP, Unified Engineering

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,628.139

F2 · shares: Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.