Proto Labs Inc
PRLB- Exchange
- NYSE
- Industry
- Fabricated Structural Metal Products
- SEC CIK
- 0001443669
In the last 90 days, Proto Labs Inc insiders filed 0 open-market purchases and 2 sales; 277 institutions reported holding it in 13F filings for Q2 2026, worth $1.83B in total; ARK Invest is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Proto Labs Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 2 filings
- 1 insider, $902.6K in total
- Insiders trading
- 1
- Net value
- −$902.6K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Proto Labs Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Schumacher Daniel | Chief Financial Officer | 35,019 | Sep 25, 2026 | 7 |
| Wehrwein Sven | Director | 32,505 | Jun 4, 2026 | 2 |
| Krishna Suresh | President and CEO | 30,147 | May 27, 2026 | 2 |
| Parlange Bernardo | Chief Commercial Officer | 2,109 | May 22, 2026 | 1 |
| Krantz Donald G | Director | 26,863 | May 21, 2026 | 1 |
| Chand Sujeet | Director | 26,863 | May 21, 2026 | 1 |
| Chin Moonhie | Director | 22,306 | May 21, 2026 | 1 |
| Black Archie C. | Director | 28,428 | May 21, 2026 | 1 |
| Gawlick Rainer | Director | 46,093 | May 21, 2026 | 1 |
| Kenison Michael R. | Chief Operations Officer | 18,683 | May 13, 2026 | 8 |
| Kermisch Marc | Chief Technology & AI Officer | 6,513 | Feb 27, 2026 | 2 |
| Greiner Stacy | Director | 19,644 | May 28, 2025 | 0 |
| Bodor Robert | President and CEO | 108,579 | Feb 27, 2025 | 0 |
| Ryaboy Oleg | Chief Technology Officer | 35,305 | Feb 27, 2025 | 0 |
| Klaas Bjoern | VP and Mng Director-PL Europe | 23,046 | Feb 15, 2024 | 0 |
| Baker Arthur R. III | Chief Technology Officer | 35,307 | Feb 17, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 25, 2026 (view filing)4:11 PM ET | Sep 24 | 1 day | Schumacher DanielChief Financial Officer | SSale | −5.00K | $95.32 | −$476.6K | −12.5%35.0K after | 10b5-1 |
| Sep 18, 2026 (view filing)4:02 PM ET | Sep 16-17 | 2 days | Schumacher DanielChief Financial Officer | SSale | −5.00K | $85.21 | −$426.0K | −11.1%40.0K after | 2 lots10b5-1 |
| Jun 4, 2026 (view filing) | Jun 2 | 2 days | Wehrwein SvenDirector | SSale | −2.00K | $77.28 | −$154.6K | −5.8%32.5K after | 2 lots |
| May 13, 2026 (view filing) | May 11-12 | 2 days | Kenison Michael R.Chief Operations Officer | SSale | −23.5K | $69.73 | −$1.64M | −55.7%18.7K after | 5 lots10b5-1 |
| May 8, 2026 (view filing) | May 7 | 1 day | Kenison Michael R.Chief Operations Officer | SSale | −200 | $70.00 | −$14.0K | −0.7%27.2K after | 10b5-1 |
| Feb 18, 2026 (view filing) | Feb 17 | 1 day | Kenison Michael R.Chief Operations Officer | SSale | −5.00K | $66.46 | −$332.3K | −16.5%25.3K after | 10b5-1 |
| Feb 9, 2026 (view filing) | Feb 6 | 3 days | Kenison Michael R.Chief Operations Officer | SSale | −2.50K | $60.00 | −$150.0K | −6.8%34.5K after | 10b5-1 |
| Dec 3, 2025 (view filing) | Nov 25 | 8 days | Kenison Michael R.Chief Operations Officer | SSale | −3.05K | $50.17 | −$152.9K | −9.5%28.9K after | Amended10b5-1 |
| Aug 7, 2025 (view filing) | Aug 5 | 2 days | Gawlick RainerDirector | PPurchase | +1.72K | $43.79 | +$75.1K | +4.1%43.9K after | |
| Aug 6, 2025 (view filing) | Aug 4 | 2 days | Krishna SureshPresident and CEO | PPurchase | +1.73K | $43.51 | +$75.1K | +10.6%18.0K after | |
| Sep 9, 2024 (view filing) | Sep 6 | 3 days | Bodor RobertPresident and CEO | PPurchase | +3.48K | $28.68 | +$99.8K | +4.5%80.9K after | |
| Dec 6, 2021 (view filing) | Dec 3 | 3 days | Bodor RobertPresident and CEO | PPurchase | +3.14K | $47.87 | +$150.2K | +14.6%24.7K after | |
| Dec 1, 2021 (view filing) | Dec 1 | Same day | Baker Arthur R. IIIChief Technology Officer | PPurchase | +10.0K | $49.21 | +$492.1K | +48.5%30.6K after |