Proto Labs Inc (PRLB) Insider Trading -- Recent Executive & Director Transactions
12 insiders reported 59 Form 4 transactions for Proto Labs Inc (PRLB) over the past 18 months (most recent 2026-09-25). Recent activity: Schumacher Daniel (Chief Financial Officer) Sell 5,000 shares, Schumacher Daniel (Chief Financial Officer) Sell 100 shares, Schumacher Daniel (Chief Financial Officer) Sell 4,900 shares, WEHRWEIN SVEN (Director) Sell 500 shares, WEHRWEIN SVEN (Director) Sell 1,500 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-25 | Schumacher Daniel | Chief Financial Officer | Sell | 5,000 | $476,604 |
| 2026-09-18 | Schumacher Daniel | Chief Financial Officer | Sell | 100 | $8,500 |
| 2026-09-18 | Schumacher Daniel | Chief Financial Officer | Sell | 4,900 | $417,535 |
| 2026-06-04 | WEHRWEIN SVEN | Director | Sell | 500 | $39,190 |
| 2026-06-04 | WEHRWEIN SVEN | Director | Sell | 1,500 | $115,365 |
| 2026-05-27 | Krishna Suresh | President and CEO | Sell | 1,247 | $88,986 |
| 2026-05-22 | Parlange Bernardo | Chief Commercial Officer | Buy | 2,109 | $0 |
| 2026-05-22 | Schumacher Daniel | Chief Financial Officer | Sell | 255 | $18,138 |
| 2026-05-21 | WEHRWEIN SVEN | Director | Buy | 2,210 | $0 |
| 2026-05-21 | Chin Moonhie | Director | Buy | 2,210 | $0 |
| 2026-05-21 | Gawlick Rainer | Director | Buy | 2,210 | $0 |
| 2026-05-21 | Black Archie C. | Director | Buy | 2,210 | $0 |
| 2026-05-21 | KRANTZ DONALD G | Director | Buy | 2,210 | $0 |
| 2026-05-21 | Chand Sujeet | Director | Buy | 2,210 | $0 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Buy | 3,756 | $127,103 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Buy | 3,677 | $123,253 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Sell | 7,433 | $522,243 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Buy | 1,928 | $65,244 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Buy | 1,557 | $61,673 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Buy | 4,042 | $240,095 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Sell | 1,613 | $109,007 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Sell | 4,198 | $288,403 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Sell | 3,576 | $249,533 |
| 2026-05-13 | Kenison Michael R. | Chief Operations Officer | Sell | 6,643 | $467,003 |
| 2026-05-08 | Kenison Michael R. | Chief Operations Officer | Buy | 100 | $3,384 |
Source: SEC Form 4 filings · as of 2026-09-25