Proto Labs (PRLB) COO now holds 37,026 shares after acquisition

Rhea-AI Filing Summary

Proto Labs, Inc. Chief Operations Officer Michael R. Kenison reported the acquisition of 8,128 shares of Proto Labs common stock on January 29, 2026, at a reported price of $0 per share. Following this transaction, he beneficially owns 37,026 shares of Proto Labs common stock in direct ownership, as disclosed in this Form 4 insider filing.

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

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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^*

Kenison Michael R.

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
01/29/2026

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	01/29/2026		A		8,128	A	$0	37,026	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:

Remarks:

	/s/ W. Morgan Burns, Attorney-in-Fact	02/04/2026
	** 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.

FAQ

What insider transaction did Proto Labs (PRLB) report for its COO?

Proto Labs reported that Chief Operations Officer Michael R. Kenison acquired 8,128 shares of common stock on January 29, 2026, at a reported price of $0 per share. After this acquisition, he beneficially owns 37,026 Proto Labs common shares in direct ownership.

How many Proto Labs shares does COO Michael R. Kenison now own?

After the reported transaction, Chief Operations Officer Michael R. Kenison beneficially owns 37,026 shares of Proto Labs common stock. This figure reflects his direct ownership as disclosed in the Form 4 filing following the 8,128-share acquisition on January 29, 2026.

What was the price per share in the Proto Labs COO’s latest Form 4 transaction?

The Form 4 filing shows that Chief Operations Officer Michael R. Kenison acquired 8,128 shares of Proto Labs common stock at a reported price of $0 per share. This zero-dollar price typically indicates a non-cash acquisition such as an award, based on the disclosed data.

What role does the insider in this Proto Labs Form 4 hold?

The reporting person in this Proto Labs Form 4 is Michael R. Kenison, who serves as Chief Operations Officer. He is identified as an officer of the company, not a director or 10% owner, and the filing reports his direct beneficial ownership changes.

Does the Proto Labs Form 4 indicate direct or indirect ownership for the COO?

The Form 4 specifies that Chief Operations Officer Michael R. Kenison’s 37,026 Proto Labs common shares are held with direct ownership. The ‘D’ designation in the ownership column confirms direct beneficial ownership, with no nature of indirect ownership described in the filing.