Kenison Michael R. (CIK 1870293) reported 29 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-13). Recent activity: Sell PRLB (4,198 shares), Buy PRLB (3,677 shares), Sell PRLB (7,433 shares), Buy PRLB (1,928 shares), Buy PRLB (1,557 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 4,198 | $288,390 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 3,677 | $123,253 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 7,433 | $522,251 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 1,928 | $65,244 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 1,557 | $61,673 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 4,042 | $240,095 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 1,613 | $109,008 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 3,756 | $127,103 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 3,576 | $249,542 |
| 2026-05-13 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 6,643 | $466,975 |
| 2026-05-08 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 200 | $14,000 |
| 2026-05-08 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 100 | $3,352 |
| 2026-05-08 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 100 | $3,384 |
| 2026-02-27 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 2,415 | $0 |
| 2026-02-27 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 531 | $33,257 |
| 2026-02-18 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 1,540 | $103,981 |
| 2026-02-18 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 5,000 | $332,300 |
| 2026-02-12 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 2,684 | $142,735 |
| 2026-02-09 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 2,500 | $150,000 |
| 2026-02-04 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 8,128 | $0 |
| 2025-12-03 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 3,048 | $103,144 |
| 2025-12-03 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 3,048 | $152,918 |
| 2025-11-26 | Proto Labs Inc (PRLB) | Chief Operations Officer | Buy | 3,048 | $103,144 |
| 2025-11-26 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 3,048 | $152,918 |
| 2025-05-22 | Proto Labs Inc (PRLB) | Chief Operations Officer | Sell | 204 | $8,337 |
Source: SEC Form 4 filings · as of 2026-05-13