Who
Donald G. Krantz
Director
Company insider
Files Form 4 as: Executive VP and Tech. Officer, Proto Labs.
In numbers
- Trades disclosed
- 81
- Buys
- 0
- Sells
- 13
- Bought
- $0
- Sold
- $12.4M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 7 May 2012
- Last trade
- 19 May 2026
- Last filed
- 21 May 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 19 May 2026filed 21 May 2026 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —2,210 at $0.00 | filing |
| 19 May 2026filed 21 May 2026 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —2,210 at $0.00 | filing |
| 23 May 2025filed 28 May 2025 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —3,939 at $0.00 | filing |
| 23 May 2024filed 24 May 2024 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —4,701 at $0.00 | filing |
| 17 May 2023filed 19 May 2023 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —4,513 at $0.00 | filing |
| 30 Aug 2022filed 1 Sep 2022 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —3,236 at $0.00 | filing |
| 18 May 2022filed 20 May 2022 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —3,236 at $0.00 | filing |
| 18 May 2021filed 20 May 2021 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,520 at $0.00 | filing |
| 19 May 2020filed 21 May 2020 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,197 at $0.00 | filing |
| 15 May 2019filed 17 May 2019 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,311 at $0.00 | filing |
| 16 May 2018filed 18 May 2018 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,064 at $0.00 | filing |
| 18 May 2017filed 25 May 2017 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,586 at $0.00 | filing |
| 18 May 2017filed 25 May 2017 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,586 at $0.00 | filing |
| 18 May 2017filed 22 May 2017 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,586 at $0.00 | filing |
| 18 May 2017filed 22 May 2017 | PRLB Proto LabsMachinery | SEC FORM 4 Code A | —1,586 at $0.00 | filing |
| 14 Mar 2016filed 16 Mar 2016 | PRLB Proto LabsMachinery | SEC FORM 4 Code M | $165K21,000 at $7.86 | filing |
| 14 Mar 2016filed 16 Mar 2016 | PRLB Proto LabsMachinery | SEC FORM 4 Code M | $152K3,234 at $47.08 | filing |
| 14 Mar 2016filed 16 Mar 2016 | PRLB Proto LabsMachinery | SEC FORM 4 Code M | $134K1,999 at $67.15 | filing |
| 14 Mar 2016filed 16 Mar 2016 | PRLB Proto LabsMachinery | SEC FORM 4 Sold | $2.0M26,233 at $75.11 | filing |
| 14 Mar 2016filed 16 Mar 2016 | PRLB Proto Labsoption or derivative · Machinery | SEC FORM 4 Code M | —21,000 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.