DISCIPLINED GROWTH INVESTORS INC /MN 13D and 13G filings for Proto Labs, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-05-15 4:26 pm Sale | 2026-03-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,497,355 10.500% | -176,374 (-6.60%) | Filing |
| 2026-02-17 4:38 pm Purchase | 2025-12-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,673,729 11.300% | 81,356 (+3.14%) | Filing |
| 2025-11-14 3:59 pm Sale | 2025-09-30 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,592,373 10.900% | -129,638 (-4.76%) | Filing |
| 2025-08-14 7:25 pm Purchase | 2025-06-30 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,722,011 11.400% | 51,293 (+1.92%) | Filing |
| 2025-05-15 4:26 pm Purchase | 2025-03-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,670,718 11.200% | 497,019 (+22.87%) | Filing |
| 2025-02-14 3:07 pm Purchase | 2024-12-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,173,699 8.900% | 117,106 (+5.69%) | Filing |
| 2024-11-14 4:36 pm Purchase | 2024-09-30 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,056,593 8.400% | 316,955 (+18.22%) | Filing |
| 2024-02-14 12:19 pm Sale | 2023-12-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 1,739,638 6.740% | -382,253 (-18.01%) | Filing |
| 2023-02-14 3:41 pm Purchase | 2022-12-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 2,121,891 7.820% | 329,898 (+18.41%) | Filing |
| 2022-02-14 5:49 pm Purchase | 2021-12-31 | 13G | PROTO LABS INC PRLB | DISCIPLINED GROWTH INVESTORS INC /MN | 1,791,993 6.500% | 1,791,993 (New Position) | Filing |