Proto Labs Inc (PRLB) Insider Trading
Directors, officers and holders of more than 10% of PRLB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 92 transactions on file: 0 with code P, 12 with code S and 38 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 24, 2026 | Schumacher Daniel | Chief Financial Officer | S Sale | 5,000 | $95.32 | $476,605 |
| Sep 17, 2026 | Schumacher Daniel | Chief Financial Officer | S Sale | 4,900 | $85.21 | $417,535 |
| Sep 16, 2026 | Schumacher Daniel | Chief Financial Officer | S Sale | 100 | $85.00 | $8,500 |
| Jun 2, 2026 | WEHRWEIN SVEN | Director | S Sale | 500 | $78.38 | $39,190 |
| Jun 2, 2026 | WEHRWEIN SVEN | Director | S Sale | 1,500 | $76.91 | $115,360 |
| May 23, 2026 | Krishna Suresh | President and CEO | F Tax Payment | 1,247 | $71.36 | $88,986 |
| May 20, 2026 | Parlange Bernardo | Chief Commercial Officer | A Award | 2,109 | Not measured | Not measured |
| May 20, 2026 | Parlange Bernardo | Chief Commercial Officer | A Award | 3,789 | Not measured | Not measured |
| May 20, 2026 | Schumacher Daniel | Chief Financial Officer | F Tax Payment | 255 | $71.13 | $18,138 |
| May 19, 2026 | WEHRWEIN SVEN | Director | A Award | 2,210 | Not measured | Not measured |
| May 19, 2026 | KRANTZ DONALD G | Director | A Award | 2,210 | Not measured | Not measured |
| May 19, 2026 | Gawlick Rainer | Director | A Award | 2,210 | Not measured | Not measured |
| May 19, 2026 | Chin Moonhie | Director | A Award | 2,210 | Not measured | Not measured |
| May 19, 2026 | Chand Sujeet | Director | A Award | 2,210 | Not measured | Not measured |
| May 19, 2026 | Black Archie C. | Director | A Award | 2,210 | Not measured | Not measured |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 1,613 | $67.58 | $109,008 |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 1,557 | $39.61 | $61,673 |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 1,928 | $33.84 | $65,244 |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 6,643 | $70.30 | $466,975 |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 3,576 | $69.78 | $249,542 |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 4,042 | Not measured | Not measured |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 1,557 | Not measured | Not measured |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 1,928 | Not measured | Not measured |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 4,198 | $68.70 | $288,390 |
| May 12, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 4,042 | $59.40 | $240,095 |
| May 11, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 3,677 | $33.52 | $123,253 |
| May 11, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 3,677 | Not measured | Not measured |
| May 11, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 3,756 | Not measured | Not measured |
| May 11, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 3,756 | $33.84 | $127,103 |
| May 11, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 7,433 | $70.26 | $522,251 |
| May 7, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 100 | $33.84 | $3,384 |
| May 7, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 200 | $70.00 | $14,000 |
| May 7, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 100 | Not measured | Not measured |
| May 7, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 100 | $33.52 | $3,352 |
| May 7, 2026 | Kenison Michael R. | Chief Operations Officer | M Exercise | 100 | Not measured | Not measured |
| Feb 25, 2026 | Kenison Michael R. | Chief Operations Officer | F Tax Payment | 531 | $62.63 | $33,257 |
| Feb 25, 2026 | Schumacher Daniel | Chief Financial Officer | A Award | 5,605 | Not measured | Not measured |
| Feb 25, 2026 | Krishna Suresh | President and CEO | A Award | 13,373 | Not measured | Not measured |
| Feb 25, 2026 | Schumacher Daniel | Chief Financial Officer | F Tax Payment | 504 | $62.63 | $31,566 |
| Feb 25, 2026 | Schumacher Daniel | Chief Financial Officer | A Award | 3,074 | Not measured | Not measured |
| Feb 25, 2026 | Kermisch Marc | Chief Technology & AI Officer | A Award | 2,795 | Not measured | Not measured |
| Feb 25, 2026 | Kenison Michael R. | Chief Operations Officer | A Award | 2,415 | Not measured | Not measured |
| Feb 25, 2026 | Krishna Suresh | President and CEO | A Award | 24,383 | Not measured | Not measured |
| Feb 25, 2026 | Kenison Michael R. | Chief Operations Officer | A Award | 4,404 | Not measured | Not measured |
| Feb 25, 2026 | Kermisch Marc | Chief Technology & AI Officer | A Award | 5,095 | Not measured | Not measured |
| Feb 17, 2026 | Kenison Michael R. | Chief Operations Officer | S Sale | 5,000 | $66.46 | $332,315 |
| Feb 13, 2026 | Schumacher Daniel | Chief Financial Officer | F Tax Payment | 1,267 | $67.52 | $85,548 |
| Feb 13, 2026 | Kenison Michael R. | Chief Operations Officer | F Tax Payment | 1,540 | $67.52 | $103,981 |
| Feb 11, 2026 | Schumacher Daniel | Chief Financial Officer | M Exercise | 3,135 | Not measured | Not measured |
| Feb 11, 2026 | Schumacher Daniel | Chief Financial Officer | M Exercise | 3,135 | $33.84 | $106,088 |
The full Form 4 history is on the PRLB company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.