Proto Labs CEO granted stock and options awards

Krishna Suresh reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Krishna Suresh reported acquisition or exercise transactions in this Form 4 filing.

Proto Labs Inc director and President & CEO Suresh Krishna reported equity awards on February 25, 2026. He received 24,383 employee stock options and a grant of 13,373 shares of common stock at a price of $0.00 per share as compensation awards. The related restricted stock units vest 25% on February 25, 2027 and on each February 25 thereafter until fully vested.

Insider Trade Summary

Grant/Award: 37,756 shares

Grant/Award 2 txns

Insider Krishna Suresh

Role President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option (right to buy)	24,383	$0.00	$0.00
Grant/Award	Common Stock	13,373	$0.00	$0.00

Holdings After Transaction: Employee Stock Option (right to buy) — 24,383 contracts (Direct); Common Stock — 31,394 shares (Direct)

Footnotes (2)

1. F1. Restricted Stock Units that vest as follows: 25% of shares subject to the award will vest on February 25, 2027, and on each February 25th thereafter until all shares subject to the award are fully vested.
2. F2. 25% of shares subject to the award will vest on February 25, 2027, and on each February 25th thereafter until all shares subject to the award are fully vested.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did Proto Labs (PRLB) report for Suresh Krishna?

Proto Labs reported that President and CEO Suresh Krishna received equity awards on February 25, 2026. He was granted 24,383 employee stock options and 13,373 shares of common stock, both at a grant price of $0.00 per share as part of his compensation.

Were the Proto Labs (PRLB) insider transactions a purchase or a grant?

The Proto Labs insider transactions for Suresh Krishna were grants, not open-market purchases. The Form 4 identifies transaction code “A,” described as a grant, award, or other acquisition, indicating equity compensation rather than a traditional buy or sell in the market.

How many shares did Proto Labs CEO Suresh Krishna acquire in this Form 4?

Suresh Krishna acquired 24,383 employee stock options and 13,373 shares of common stock. These awards increased his reported direct holdings, with 31,394 shares of common stock listed as owned directly following the non-derivative transaction on February 25, 2026.

What are the vesting terms of the Proto Labs (PRLB) awards reported?

The filing states that restricted stock units vest over time. Twenty-five percent of the shares subject to the awards will vest on February 25, 2027, and 25% will vest on each February 25 thereafter until all shares subject to the awards are fully vested.

Does the Proto Labs Form 4 show any insider share sales by Suresh Krishna?

The Form 4 does not show any sales by Suresh Krishna. All reported transactions use code “A” for grant, award, or other acquisition, with zero reported sell transactions and zero net buy/sell shares in the transaction summary for this filing.

Are the Proto Labs (PRLB) awards to Suresh Krishna direct or indirect holdings?

The awards reported in this Form 4 are classified as direct ownership. The transactions list ownership code “D” and note direct ownership, with no footnotes indicating that the shares are held through trusts, LLCs, or other indirect entities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/27/2026 - 04:16 PM EST 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^*

Krishna Suresh

(Last) (First) (Middle)

5540 PIONEER CREEK DRIVE

(Street)

MAPLE PLAIN MN 55359

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Proto Labs Inc [ PRLB ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

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

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

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

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	02/25/2026		A		13,373(1)	A	$0	31,394	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
Employee Stock Option (right to buy)	$62.63	02/25/2026		A		24,383		(2)	02/25/2036	Common Stock	24,383	$0	24,383	D

Explanation of Responses:

1. Restricted Stock Units that vest as follows: 25% of shares subject to the award will vest on February 25, 2027, and on each February 25th thereafter until all shares subject to the award are fully vested.

2. 25% of shares subject to the award will vest on February 25, 2027, and on each February 25th thereafter until all shares subject to the award are fully vested.

Remarks:

	/s/ W. Morgan Burns, Attorney-in-Fact	02/27/2026
	** 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.