Porshnev Peter 4

4 · VEECO INSTRUMENTS INC · Filed Mar 24, 2026

AI-generated summary of this filing

Updated Mar 24, 2026

Veeco (VECO) CTO Peter Porshnev Converts PRSUs, Has Shares Withheld, Buys ESPP

What Happened

Peter Porshnev, Chief Technology Officer of Veeco (VECO), converted 26,910 performance-based restricted stock units (PRSUs) into common shares on March 20, 2026 (reported as an "exercise/conversion", $0 exercise price). To cover tax withholding, 11,397 of those shares were surrendered to Veeco at $31.00 each (total value $353,307). Separately on March 20 he purchased 593 shares through Veeco’s Employee Stock Purchase Plan (ESPP) at $25.96 each for $15,394. Net across these actions he received 26,910 + 593 − 11,397 = 16,106 net new shares.

Key Details

Transaction date: March 20, 2026; Form filed March 24, 2026 (timely file).
Conversion: 26,910 PRSUs converted to common stock; recorded at $0.00 exercise price.
Tax withholding: 11,397 shares surrendered to satisfy tax withholding at $31.00/share (F2) = $353,307.
ESPP purchase: 593 shares bought at $25.96/share = $15,394 (F3).
Shares owned after transaction: not disclosed in the information provided.
Notable footnotes: F1 explains the PRSUs were awarded in March 2023 and vested at 172.5% of the original grant (15,600 × 172.5% = 26,910). F2 = shares surrendered for taxes; F3 = ESPP purchase.

Context

This was primarily a conversion/vesting event (performance RSUs achieved their performance target), not an open-market sale of vested shares. The surrender of shares to cover taxes is routine and does not by itself indicate buying/selling sentiment. The small ESPP purchase is a separate, modest buy and is commonly part of employee benefit plans.

Form 4

Period: 2026-03-20

Chief Technology Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-03-20+26,910→ 205,863.306 total
Tax Payment
Common Stock
[F2]
2026-03-20$31.00/sh−11,397$353,307→ 194,466.306 total
Award
Common Stock
[F3]
2026-03-20$25.96/sh+593$15,394→ 195,059.306 total

Footnotes (3)

[F1]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.
[F2]Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.
[F3]Represents 593 shares purchased under the Veeco Employee Stock Purchase Plan on March 20, 2026.

Signature

/s/ Kirk W. Mackey, Attorney-in-Fact|2026-03-24

1 file