Proto Labs Inc (PRLB)
Insider transactions
A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.
Transaction date | Executive | Executive Title | Security Type | Acquisition / Disposal | Shares | Share price |
|---|---|---|---|---|---|---|
| Nov 3, 2026 | GAWLICK, RAINER | Director | Common Stock | Acquisition | 720 | $68.18 |
| Nov 2, 2026 | KRISHNA, SURESH | Director, President and CEO | Common Stock | Acquisition | 750 | $69.52 |
| Sep 24, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 5,000 | $95.32 |
| Sep 17, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 4,900 | $85.21 |
| Sep 16, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 100 | $85 |
| Jun 2, 2026 | WEHRWEIN, SVEN | Director | Common Stock | Disposal | 500 | $78.38 |
| Jun 2, 2026 | WEHRWEIN, SVEN | Director | Common Stock | Disposal | 1,500 | $76.91 |
| May 23, 2026 | KRISHNA, SURESH | Director, President and CEO | Common Stock | Disposal | 1,247 | $71.36 |
| May 20, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 255 | $71.13 |
| May 20, 2026 | PARLANGE, BERNARDO | Chief Commercial Officer | Employee Stock Option (right to buy) | Acquisition | 3,789 | $0 |
| May 20, 2026 | PARLANGE, BERNARDO | Chief Commercial Officer | Common Stock | Acquisition | 2,109 | $0 |
| May 19, 2026 | CHIN, MOONHIE | Director | Common Stock | Acquisition | 2,210 | $0 |
| May 19, 2026 | GAWLICK, RAINER | Director | Common Stock | Acquisition | 2,210 | $0 |
| May 19, 2026 | CHAND, SUJEET | Director | Common Stock | Acquisition | 2,210 | $0 |
| May 19, 2026 | WEHRWEIN, SVEN | Director | Common Stock | Acquisition | 2,210 | $0 |
| May 19, 2026 | KRANTZ, DONALD G | Director | Common Stock | Acquisition | 2,210 | $0 |
| May 19, 2026 | BLACK, ARCHIE C. | Director | Common Stock | Acquisition | 2,210 | $0 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 6,643 | $70.30 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 1,613 | $67.58 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 1,557 | $0 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 1,557 | $39.61 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 4,042 | $0 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 4,042 | $59.40 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 4,198 | $68.70 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 1,928 | $0 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 1,928 | $33.84 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 3,576 | $69.78 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 1,557 | $0 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 4,042 | $0 |
| May 12, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 1,928 | $0 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 7,433 | $70.26 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 3,677 | $0 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 3,677 | $33.52 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 3,756 | $0 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 3,756 | $33.84 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 3,677 | $0 |
| May 11, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 3,756 | $0 |
| May 7, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 200 | $70 |
| May 7, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 100 | $0 |
| May 7, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 100 | $33.84 |
| May 7, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 100 | $33.52 |
| May 7, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 100 | $0 |
| Feb 25, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 531 | $62.63 |
| Feb 25, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Employee Stock Option (right to buy) | Acquisition | 5,605 | $0 |
| Feb 25, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Acquisition | 3,074 | $0 |
| Feb 25, 2026 | KERMISCH, MARC | Chief Technology & AI Officer | Employee Stock Option (right to buy) | Acquisition | 5,095 | $0 |
| Feb 25, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 2,415 | $0 |
| Feb 25, 2026 | KERMISCH, MARC | Chief Technology & AI Officer | Common Stock | Acquisition | 2,795 | $0 |
| Feb 25, 2026 | KRISHNA, SURESH | Director, President and CEO | Common Stock | Acquisition | 13,373 | $0 |
| Feb 25, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 504 | $62.63 |
| Feb 25, 2026 | KRISHNA, SURESH | Director, President and CEO | Employee Stock Option (right to buy) | Acquisition | 24,383 | $0 |
| Feb 25, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 4,404 | $0 |
| Feb 17, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 5,000 | $66.46 |
| Feb 13, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 1,267 | $67.52 |
| Feb 13, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 1,540 | $67.52 |
| Feb 11, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Employee Stock Option (right to buy) | Disposal | 3,135 | $0 |
| Feb 11, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Acquisition | 3,135 | $33.84 |
| Feb 11, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Employee Stock Option (right to buy) | Acquisition | 3,135 | $0 |
| Feb 10, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 2,684 | $53.18 |
| Feb 10, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Disposal | 6,809 | $53.18 |
| Feb 6, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 2,500 | $60 |
| Jan 29, 2026 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 8,128 | $0 |
| Jan 29, 2026 | SCHUMACHER, DANIEL | Chief Financial Officer | Common Stock | Acquisition | 20,686 | $0 |
| Nov 25, 2025 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Disposal | 3,048 | $50.17 |
| Nov 25, 2025 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Disposal | 3,048 | $0 |
| Nov 25, 2025 | KENISON, MICHAEL R. | Chief Operations Officer | Common Stock | Acquisition | 3,048 | $33.84 |
| Nov 25, 2025 | KENISON, MICHAEL R. | Chief Operations Officer | Employee Stock Option (right to buy) | Acquisition | 3,048 | $0 |
| Nov 17, 2025 | KERMISCH, MARC | Chief Technology & AI Officer | Employee Stock Option (right to buy) | Acquisition | 6,818 | $0 |
| Nov 17, 2025 | KERMISCH, MARC | Chief Technology & AI Officer | Common Stock | Acquisition | 3,718 | $0 |