Veeco CTO vests awards, updates shareholding

Veeco Instruments’ Chief Technology Officer Peter Porshnev increased his direct stake through performance share vesting and an employee stock purchase.

Rhea-AI Filing Summary

Veeco Instruments’ Chief Technology Officer Peter Porshnev increased his direct stake through performance share vesting and an employee stock purchase. On March 20, 2026, 26,910 common shares were delivered upon vesting of performance-based restricted stock units granted in 2023, reflecting achievement at 172.5% of the original target. To cover tax obligations from the vesting, 11,397 shares were surrendered back to Veeco at a reference price of $31.00 per share. He also acquired 593 shares at $25.959 per share through the Veeco Employee Stock Purchase Plan, bringing his direct holdings to 195,059.306 common shares.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Porshnev Peter

Role Chief Technology Officer

Type	Security	Shares	Price	Value
Exercise	Common Stock	26,910	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	11,397	$31.00	$353K
Grant/Award	Common Stock	593	$25.959	$15K

Holdings After Transaction: Common Stock — 195,059.306 shares (Direct)

Footnotes (3)

1. 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.
2. F2. Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.
3. F3. Represents 593 shares purchased under the Veeco Employee Stock Purchase Plan on March 20, 2026.

FAQ

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What did Veeco (VECO) CTO Peter Porshnev report in this Form 4?

CTO Peter Porshnev reported vesting of 26,910 performance-based shares, surrender of 11,397 shares for taxes, and purchase of 593 shares under Veeco’s Employee Stock Purchase Plan, ending with 195,059.306 directly held shares.

How many Veeco (VECO) shares did the CTO receive from performance-based awards?

Peter Porshnev received 26,910 Veeco common shares upon vesting of performance-based restricted stock units granted in March 2023. The award was tied to three-year total shareholder return criteria and ultimately paid out at 172.5% of the target amount.

Why were 11,397 Veeco (VECO) shares surrendered by the CTO?

The 11,397 Veeco shares were surrendered back to the company to satisfy tax withholding obligations triggered by the vesting of restricted stock. This was a tax-withholding disposition, not an open-market sale, and was priced at $31.00 per share for withholding purposes.

What is the significance of the 593 Veeco (VECO) shares mentioned in the filing?

The 593 Veeco shares represent stock purchased by Peter Porshnev through the Veeco Employee Stock Purchase Plan on March 20, 2026, at $25.959 per share. This reflects ongoing participation in the company’s employee ownership program in addition to equity awards.

How many Veeco (VECO) shares does the CTO hold after these transactions?

After the reported vesting, tax withholding, and employee stock purchase transactions, Chief Technology Officer Peter Porshnev directly holds 195,059.306 shares of Veeco common stock. This total reflects his updated ownership position following all Form 4 events on March 20, 2026.

What performance criteria governed the Veeco (VECO) PRSU award to the CTO?

The performance-based restricted stock units were tied to Veeco’s three-year total shareholder return relative to Russell 2000 companies. The award, granted in March 2023, could pay out between 50% and 200% of target; it ultimately vested at 172.5% based on achieved performance.

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Accepted by SEC EDGAR 03/24/2026 - 04:25 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Porshnev Peter

(Last) (First) (Middle)

C/O VEECO INSTRUMENTS INC.

1 TERMINAL DRIVE

(Street)

PLAINVIEW NEW YORK 11803

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
VEECO INSTRUMENTS INC [ VECO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/20/2026		M		26,910(1)	A	$0	205,863.306	D
Common Stock	03/20/2026		F		11,397(2)	D	$31	194,466.306	D
Common Stock	03/20/2026		A	V	593(3)	A	$25.959	195,059.306	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. Represents securities surrendered to Veeco to satisfy tax withholding obligations due upon the vesting of restricted stock.

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

	/s/ Kirk W. Mackey, Attorney-in-Fact	03/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)