Proto Labs Inc insider trading
Every open-market purchase and sale by Proto Labs Inc's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.
| Date | Insider | Trade | Shares | Price | Value | 1M after | 3M after | 6M after |
|---|
Does following Proto Labs Inc’s insiders pay?
From August 23, 2012 to June 4, 2026, 18 insiders reported 9 open-market purchases and 53 sales not made under a pre-set plan in Proto Labs Inc. Twelve months after each purchase was reported, the shares were +13.1% against the S&P 500 on average (median +13.5%), over 9 purchases with a full year of prices; 67% beat the index. After sales, the shares moved +8.9% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on February 19, 2014 into $21,010 by November 2, 2026, +6.0% a year. It held shares 47% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $19,877 (+5.6% a year), and held throughout $51,144 (+13.7%).
| Insider | Role | Purchases | 12 months after their purchases | Beat the S&P 500 | Sales | 12 months after their sales | Latest report |
|---|---|---|---|---|---|---|---|
| Smith Brian K | Director | 1 | +8.4% (1) | 100% | 9 | +48.0% (9) | March 24, 2015 |
| Tumelty John B. | VP/GM & Managing Director-EMEA | 0 | — | — | 6 | +29.5% (6) | November 27, 2017 |
| Baker Arthur R. III | Chief Technology Officer | 2 | −13.2% (2) | 50% | 3 | −64.8% (3) | December 1, 2021 |
| Loftus Margaret A | Director | 0 | — | — | 5 | +33.5% (5) | September 4, 2013 |
| Goodman John B | Director | 0 | — | — | 4 | −53.0% (4) | March 3, 2021 |
| Holt Victoria M | President and CEO | 2 | −7.9% (2) | 50% | 2 | +4.3% (2) | February 18, 2021 |
| Lukis Lawrence J | Chairman & Chief Tchnlgy Offcr | 0 | — | — | 4 | +8.3% (4) | August 5, 2015 |
| Wehrwein Sven | Director | 0 | — | — | 4 | −34.8% (3) | June 4, 2026 |
| Bodor Robert | President and CEO | 2 | +4.7% (2) | 50% | 1 | −2.2% (1) | September 9, 2024 |
| Gawlick Rainer | Director | 1 | +71.7% (1) | 100% | 2 | +29.5% (2) | August 7, 2025 |
| Judd John R | Chief Financial Officer | 0 | — | — | 3 | +0.7% (3) | November 1, 2013 |
| Bolton Edward E. | Vice President, Culture | 0 | — | — | 2 | +18.3% (2) | May 13, 2013 |
| Cleveland Bradley A. | President and CEO | 0 | — | — | 2 | +39.8% (2) | May 2, 2013 |
| Schneider Jacqueline D. | Vice President Global Sales | 0 | — | — | 2 | −20.2% (2) | February 19, 2016 |
| Way John | Chief Financial Officer | 0 | — | — | 2 | −55.2% (2) | August 10, 2020 |
| Anderson Edward T | 10% owner | 0 | — | — | 1 | +47.9% (1) | February 25, 2013 |
| Kingsley Douglas A | Director | 0 | — | — | 1 | +84.0% (1) | November 21, 2012 |
| Krishna Suresh | President and CEO | 1 | +70.1% (1) | 100% | 0 | — | August 6, 2025 |
When several insiders traded Proto Labs Inc
Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Proto Labs Inc in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 3 buying crowds with six months of prices, it averaged +2.2% against the index. After 4 selling crowds, −17.6%. One company's history is too short to judge by; the test across every company is the better guide.
| Month | Crowd | 3 months on, vs S&P 500 | 6 months | 12 months |
|---|---|---|---|---|
| August 29, 2025 | 2 buying | −4.2% | +18.3% | +38.2% |
| December 31, 2021 | 2 buying | +8.8% | +15.6% | −32.2% |
| March 31, 2021 | 3 selling | −33.0% | −54.5% | −72.4% |
| August 31, 2020 | 3 selling | −10.1% | −15.4% | −80.7% |
| September 30, 2016 | 2 buying | −18.2% | −27.2% | +17.1% |
| March 31, 2016 | 3 selling | −28.0% | −29.5% | −51.2% |
| November 30, 2012 | 6 selling | +22.4% | +28.9% | +73.9% |