No House member has disclosed a PRLB trade since 2025.
From the House's STOCK Act reports (Senate not included). Members disclose trades, not holdings, as value ranges up to 45 days later, so amounts are estimates and “last move” is a hint at who still holds it, not a position. All recent congress trades
| Date | Insider | Transaction | Shares | Value |
|---|---|---|---|---|
| Jun 1, 2026 | Wehrwein Sven ADirector | Sale at price 76.91 - 78.38 per share. | 2K | $154.55K |
| May 19, 2026 | Parlange BernardoOfficer | Stock Award(Grant) at price 0.00 per share. | 2.1K | — |
| May 18, 2026 | Krantz Donald GDirector | Stock Award(Grant) at price 0.00 per share. | 2.2K | — |
| May 18, 2026 | Chand SujeetDirector | Stock Award(Grant) at price 0.00 per share. | 2.2K | — |
| May 18, 2026 | Chin MoonhieDirector | Stock Award(Grant) at price 0.00 per share. | 2.2K | — |
| May 18, 2026 | Wehrwein Sven ADirector | Stock Award(Grant) at price 0.00 per share. | 2.2K | — |
| May 18, 2026 | Black Archie CDirector | Stock Award(Grant) at price 0.00 per share. | 2.2K | — |
| May 18, 2026 | Gawlick RainerDirector | Stock Award(Grant) at price 0.00 per share. | 2.2K | — |
| May 11, 2026 | Kenison Michael R.Chief Operating Officer | Conversion of Exercise of derivative security at price 33.52 - 59.40 per share. | 15K | $617.37K |
| May 11, 2026 | Kenison Michael R.Chief Operating Officer | Sale at price 67.58 - 70.30 per share. | 23.5K | $1.64M |
| May 6, 2026 | Kenison Michael R.Chief Operating Officer | Conversion of Exercise of derivative security at price 33.52 - 33.84 per share. | 200 | $6.74K |
| May 6, 2026 | Kenison Michael R.Chief Operating Officer | Sale at price 70.00 per share. | 200 | $14.00K |
| Feb 24, 2026 | Krishna SureshChief Executive Officer | Stock Award(Grant) at price 0.00 per share. | 13.4K | — |
| Feb 24, 2026 | Kenison Michael R.Chief Operating Officer | Stock Award(Grant) at price 0.00 per share. | 2.4K | — |
| Feb 24, 2026 | Schumacher DanielChief Financial Officer | Stock Award(Grant) at price 0.00 per share. | 3.1K | — |
| Feb 24, 2026 | Kermisch MarcChief Technology Officer | Stock Award(Grant) at price 0.00 per share. | 2.8K | — |
| Feb 16, 2026 | Kenison Michael R.Chief Operating Officer | Sale at price 66.46 per share. | 5K | $332.31K |
| Feb 10, 2026 | Schumacher DanielChief Financial Officer | Conversion of Exercise of derivative security at price 33.84 per share. | 3.1K | $106.09K |
| Feb 5, 2026 | Kenison Michael R.Chief Operating Officer | Sale at price 60.00 per share. | 2.5K | $150.00K |
| Jan 28, 2026 | Kenison Michael R.Chief Operating Officer | Stock Award(Grant) at price 0.00 per share. | 8.1K | — |
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4.1 | 17.9 | -8.2 | 13.7 | 16.9 | 7.6 | -7.9 | 6.7 | 18.5 | -3.4 | +81.1% | ||
| 2025 | 6.8 | -4.4 | -12.1 | 0.3 | 5.2 | 8.3 | 7.7 | 15.5 | 0.4 | -0.5 | 2.1 | -0.5 | +29.4% |
| 2024 | -7.4 | 0.9 | -1.9 | -14.7 | 1.6 | -0.3 | 12.7 | -12.2 | -4.0 | -6.7 | 50.3 | -5.1 | +0.3% |
| 2023 | 19.9 | 2.7 | 5.4 | -13.2 | 6.9 | 13.7 | -5.2 | -11.0 | -10.5 | -10.6 | 53.3 | 7.6 | +52.6% |
| 2022 | -2.3 | 12.1 | -5.9 | -19.5 | 13.1 | -0.7 | 2.2 | -21.5 | -5.1 | 4.8 | -30.6 | -3.7 | −50.3% |
| 2021 | 38.1 | -31.2 | -16.4 | -8.0 | -20.2 | 2.7 | -14.8 | -5.2 | -10.2 | -10.2 | -16.2 | 2.5 | −66.5% |
| 2020 | 1.9 | -15.3 | -13.1 | 33.4 | 24.4 | -11.0 | 6.8 | 22.4 | -11.9 | -8.8 | 17.0 | 11.0 | +51.1% |
| 2019 | 10.1 | -9.0 | -6.9 | 4.4 | -8.6 | 15.6 | -10.3 | -9.0 | 7.8 | -5.0 | -0.1 | 4.8 | −10.0% |
| 2018 | 6.2 | -0.4 | 7.9 | 1.4 | 1.2 | -1.4 | 4.8 | 24.7 | 4.1 | -26.2 | 7.7 | -12.4 | +9.5% |
| 2017 | 2.2 | 4.0 | -6.4 | 13.5 | 10.3 | 5.1 | 9.9 | -2.8 | 11.8 | 8.7 | 10.3 | 7.1 | +100.6% |
| 2016 | -13.7 | 18.3 | 18.5 | -22.4 | 10.0 | -12.5 | -4.4 | -0.6 | 9.5 | -25.4 | 16.6 | -1.4 | −19.4% |
| 2015 | -4.1 | 10.4 | -1.5 | 0.0 | -1.2 | -2.5 | 11.7 | -3.4 | -8.0 | -3.2 | 4.4 | -5.9 | −5.2% |
| 2014 | 11.5 | -1.8 | -13.1 | -10.5 | 9.0 | 24.2 | -1.1 | -7.1 | -8.3 | -5.3 | -0.7 | 3.5 | −5.6% |
| 2013 | 4.3 | 13.0 | 5.6 | 4.0 | 8.1 | 17.6 | 4.2 | 5.0 | 7.5 | 9.8 | -11.4 | -4.2 | +80.6% |
| 2012 | 10.9 | 8.8 | -0.6 | -22.0 | 31.5 | -16.8 | 7.5 | 2.6 | 5.1 | 8.1 | +28.2% |
Buy / hold / sell counts
Proto Labs, Inc., together with its subsidiaries, operates as a digital manufacturer of custom parts in the United States and Europe. It offers manufacturing services, such as molding, computer numerical control machining, 3D printing, and sheet metal to developers, engineers, and supply chain teams. The company was incorporated in 1999 and is headquartered in Maple Plain, Minnesota.