| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13G/A | Report | FORM 13G/A PRLB 12-31-23 | Feb 14, 2024 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 13, 2024 | |
| SC 13G/A | Report | PRLB SC13G-A 2022-12-31 | Feb 14, 2023 | |
| SC 13G/A | Report | Feb 14, 2023 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 9, 2023 | |
| SC 13G/A | Report | Jan 23, 2023 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Mar 9, 2022 | |
| SC 13G | Report | 13G PRLB 2021-12-31 | Feb 15, 2022 | |
| SC 13G/A | Report | HARDING LOEVNER LP | Feb 14, 2022 | |
| SC 13G/A | Report | Feb 14, 2022 | ||
| SC 13G/A | Report | SC13G/A | Feb 14, 2022 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 10, 2022 | |
| SC 13G/A | Report | AMENDMENT NO. 1 | Feb 4, 2022 | |
| SC 13G/A | Report | Jan 27, 2022 | ||
| SC 13G/A | Report | Jan 26, 2022 | ||
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT | Jan 21, 2022 | |
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT | Jan 21, 2022 | |
| SC 13G/A | Report | Jun 10, 2021 | ||
| SC 13G/A | Report | SC 13G/A | Feb 16, 2021 | |
| SC 13G | Report | HARDING LOEVNER LP | Feb 16, 2021 | |
| SC 13G/A | Report | Feb 12, 2021 | ||
| SC 13G | Report | SC 13G | Feb 11, 2021 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 10, 2021 | |
| SC 13G | Report | Feb 5, 2021 | ||
| SC 13G | Report | Jan 25, 2021 | ||
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT #7 | Jan 25, 2021 | |
| SC 13G | Report | SC 13G | Oct 9, 2020 | |
| SC 13G/A | Report | Feb 14, 2020 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 12, 2020 | |
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT #6 | Feb 5, 2020 | |
| SC 13G/A | Report | Feb 4, 2020 | ||
| SC 13G/A | Report | Mar 11, 2019 | ||
| SC 13G/A | Report | Feb 14, 2019 | ||
| SC 13G/A | Report | Feb 12, 2019 | ||
| SC 13G/A | Report | Jan 31, 2019 | ||
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT #5 | Jan 25, 2019 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Jan 15, 2019 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 14, 2018 | |
| SC 13G/A | Report | Feb 14, 2018 | ||
| SC 13G/A | Report | SC 13G/A | Feb 14, 2018 | |
| SC 13G/A | Report | Feb 12, 2018 | ||
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT #4 | Jan 29, 2018 | |
| SC 13G/A | Report | Jan 19, 2018 | ||
| SC 13G | Report | SC 13G | Feb 13, 2017 | |
| SC 13G/A | Report | Feb 13, 2017 | ||
| SC 13G/A | Report | Feb 9, 2017 | ||
| SC 13G/A | Report | PROTO LABS INC13G AMENDMENT #3 | Jan 24, 2017 | |
| SC 13G | Report | Jan 9, 2017 | ||
| SC 13G/A | Report | Oct 5, 2016 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 16, 2016 | |
| SC 13G/A | Report | Feb 10, 2016 | ||
| SC 13G/A | Report | Feb 10, 2016 | ||
| SC 13G/A | Report | Feb 5, 2016 | ||
| SC 13G/A | Report | Feb 5, 2016 | ||
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT #2 | Feb 1, 2016 | |
| SC 13G/A | Report | SCHEDULE 13G | Jan 22, 2016 | |
| SC 13G/A | Report | Jul 10, 2015 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 17, 2015 | |
| SC 13G | Report | Feb 10, 2015 | ||
| SC 13G | Report | Feb 9, 2015 | ||
| SC 13G/A | Report | Feb 5, 2015 | ||
| SC 13G/A | Report | Feb 5, 2015 | ||
| SC 13G/A | Report | PROTO LABS INC 13G AMENDMENT #1 | Jan 29, 2015 | |
| SC 13G/A | Report | Jan 22, 2015 |