Michael R. Kenison

CIK: 0001870293

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)9 (33.3%)

Position reduction

Option Exercises (M)8 (29.6%)

Derivative conversions

Awards (A)4 (14.8%)

Compensation grants

Other (G, F, J, C, D, …)6 (22.2%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

PRLB

Proto Labs Inc

Officer

Discretionary Trading P&L

Holdings

Transaction History (27 total)

PRLB
Proto Labs Inc
May 12, 2026
Sale(S)
Direct
1.6K shares at avg. $67.58$109K
PRLB
Proto Labs Inc
May 12, 2026
Sale(S)
Direct
6.6K shares at avg. $70.30$467K
PRLB
Proto Labs Inc
May 12, 2026
Sale(S)
Direct
3.6K shares at avg. $69.78$250K
PRLB
Proto Labs Inc
May 12, 2026
Sale(S)
Direct
4.2K shares at avg. $68.70$288K
PRLB
Proto Labs Inc
May 12, 2026
Exercise(M)
Direct
1.9K shares at avg. $33.84$65K
PRLB
Proto Labs Inc
May 12, 2026
Exercise(M)
Direct
1.6K shares at avg. $39.61$62K
PRLB
Proto Labs Inc
May 12, 2026
Exercise(M)
Direct
4K shares at avg. $59.40$240K
PRLB
Proto Labs Inc
May 11, 2026
Exercise(M)
Direct
3.7K shares at avg. $33.52$123K
PRLB
Proto Labs Inc
May 11, 2026
Exercise(M)
Direct
3.8K shares at avg. $33.84$127K
PRLB
Proto Labs Inc
May 11, 2026
Sale(S)
Direct
7.4K shares at avg. $70.26$522K
PRLB
Proto Labs Inc
May 7, 2026
Exercise(M)
Direct
100 shares at avg. $33.84$3K
PRLB
Proto Labs Inc
May 7, 2026
Sale(S)
Direct
200 shares at avg. $70.00$14K
PRLB
Proto Labs Inc
May 7, 2026
Exercise(M)
Direct
100 shares at avg. $33.52$3K
PRLB
Proto Labs Inc
Feb 25, 2026
Tax Payment(F)
Direct
531 shares at avg. $62.63$33K
PRLB
Proto Labs Inc
Feb 25, 2026
Award(A)
Direct
2.4K shares-
PRLB
Proto Labs Inc
Feb 17, 2026
Sale(S)
Direct
5K shares at avg. $66.46$332K
PRLB
Proto Labs Inc
Feb 13, 2026
Tax Payment(F)
Direct
1.5K shares at avg. $67.52$104K
PRLB
Proto Labs Inc
Feb 10, 2026
Tax Payment(F)
Direct
2.7K shares at avg. $53.18$143K
PRLB
Proto Labs Inc
Feb 6, 2026
Sale(S)
Direct
2.5K shares at avg. $60.00$150K
PRLB
Proto Labs Inc
Jan 29, 2026
Award(A)
Direct
8.1K shares-
PRLB
Proto Labs Inc
Nov 25, 2025
Exercise(M)
Direct
3K shares at avg. $33.84$103K
PRLB
Proto Labs Inc
Nov 25, 2025
Sale(S)
Direct
3K shares at avg. $50.17$153K
PRLB
Proto Labs Inc
May 20, 2025
Tax Payment(F)
Direct
204 shares at avg. $40.87$8K
PRLB
Proto Labs Inc
Feb 25, 2025
Award(A)
Direct
6.9K shares-
PRLB
Proto Labs Inc
Feb 13, 2025
Award(A)
Direct
1.9K shares-

		Type	Shares	Price		Ownership
May 12, 2026	PRLB Proto Labs Inc	Sale(S)	1,613	$67.58	$109,008	Direct
May 12, 2026	PRLB Proto Labs Inc	Sale(S)	6,643	$70.30	$466,975	Direct
May 12, 2026	PRLB Proto Labs Inc	Sale(S)	3,576	$69.78	$249,542	Direct
May 12, 2026	PRLB Proto Labs Inc	Sale(S)	4,198	$68.70	$288,390	Direct
May 12, 2026	PRLB Proto Labs Inc	Exercise(M)	1,928	$33.84	$65,244	Direct
May 12, 2026	PRLB Proto Labs Inc	Exercise(M)	1,557	$39.61	$61,673	Direct
May 12, 2026	PRLB Proto Labs Inc	Exercise(M)	4,042	$59.40	$240,095	Direct
May 11, 2026	PRLB Proto Labs Inc	Exercise(M)	3,677	$33.52	$123,253	Direct
May 11, 2026	PRLB Proto Labs Inc	Exercise(M)	3,756	$33.84	$127,103	Direct
May 11, 2026	PRLB Proto Labs Inc	Sale(S)	7,433	$70.26	$522,251	Direct
May 7, 2026	PRLB Proto Labs Inc	Exercise(M)	100	$33.84	$3,384	Direct
May 7, 2026	PRLB Proto Labs Inc	Sale(S)	200	$70.00	$14,000	Direct
May 7, 2026	PRLB Proto Labs Inc	Exercise(M)	100	$33.52	$3,352	Direct
Feb 25, 2026	PRLB Proto Labs Inc	Tax Payment(F)	531	$62.63	$33,257	Direct
Feb 25, 2026	PRLB Proto Labs Inc	Award(A)	2,415	-	$0	Direct
Feb 17, 2026	PRLB Proto Labs Inc	Sale(S)	5,000	$66.46	$332,315	Direct
Feb 13, 2026	PRLB Proto Labs Inc	Tax Payment(F)	1,540	$67.52	$103,981	Direct
Feb 10, 2026	PRLB Proto Labs Inc	Tax Payment(F)	2,684	$53.18	$142,735	Direct
Feb 6, 2026	PRLB Proto Labs Inc	Sale(S)	2,500	$60.00	$150,000	Direct
Jan 29, 2026	PRLB Proto Labs Inc	Award(A)	8,128	-	$0	Direct
Nov 25, 2025	PRLB Proto Labs Inc	Exercise(M)	3,048	$33.84	$103,144	Direct
Nov 25, 2025	PRLB Proto Labs Inc	Sale(S)	3,048	$50.17	$152,931	Direct
May 20, 2025	PRLB Proto Labs Inc	Tax Payment(F)	204	$40.87	$8,337	Direct
Feb 25, 2025	PRLB Proto Labs Inc	Award(A)	6,943	-	-	Direct
Feb 13, 2025	PRLB Proto Labs Inc	Award(A)	1,894	-	-	Direct

1-25 of 27 transactions

About Kenison Michael R.

Kenison Michael R. (SEC CIK 0001870293) files insider reports with the SEC as Chief Operations Officer of Proto Labs Inc (PRLB).

Signal8 holds 12 ownership filings by Kenison Michael R., all Form 4s, filed between Feb 18, 2025 and May 13, 2026. Those filings report 27 transactions, from Feb 13, 2025 to May 12, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Kenison Michael R.'s filings is in MAPLE PLAIN, MN.

Recent filings by Kenison Michael R.

May 12, 2026: Open-market sales of PRLB shares (4 lines, Form 4, code S).
May 12, 2026: Option exercises of PRLB shares (3 lines, Form 4, code M).
May 11, 2026: Option exercises of PRLB shares (2 lines, Form 4, code M).
May 11, 2026: Open-market sale of PRLB shares (Form 4, code S).
May 7, 2026: Option exercise of PRLB shares (Form 4, code M).

Other insiders filing for Proto Labs Inc (PRLB)

Schumacher Daniel, Chief Financial Officer
Ramahi Salam, Chief Operations Officer
WEHRWEIN SVEN, Director
Krishna Suresh, President and CEO
Parlange Bernardo, Chief Commercial Officer
Black Archie C., Director

How to read Form 4 transaction codes