Proto Labs Inc - PRLB
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 28
Latest filed: Mar 27, 2026
| Form | Count |
|---|---|
| 4 | 13 |
| 144 | 8 |
| SCHEDULE 13G/A | 3 |
| 8-K | 2 |
| 8-K/A | 1 |
| 4/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-002173 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001628280-26-012829 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001628280-26-012831 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001628280-26-012832 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001628280-26-012833 | View |
| Feb 18, 2026 | 4 | Feb 13, 2026 | 0001628280-26-009129 | View |
| Feb 18, 2026 | 4 | Feb 13, 2026 | 0001628280-26-009131 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0001050442-26-000006 | View |
| Feb 12, 2026 | 4 | Feb 10, 2026 | 0001894753-26-000003 | View |
| Feb 12, 2026 | 4 | Feb 10, 2026 | 0001870293-26-000004 | View |
| Feb 09, 2026 | 4 | Feb 06, 2026 | 0001628280-26-006501 | View |
| Feb 06, 2026 | 8-K | Feb 06, 2026 | 0001443669-26-000003 | View |
| Feb 06, 2026 | 8-K/A | Feb 06, 2026 | 0001443669-26-000006 | View |
| Feb 06, 2026 | 144 | — | 0001950047-26-001001 | View |
| Feb 04, 2026 | 4 | Jan 29, 2026 | 0001628280-26-005552 | View |
| Feb 04, 2026 | 4 | Jan 29, 2026 | 0001628280-26-005553 | View |
| Jan 16, 2026 | 144 | — | 0001950047-26-000511 | View |
| Jan 15, 2026 | 144 | — | 0001950047-26-000488 | View |
| Jan 08, 2026 | 144 | — | 0001950047-26-000264 | View |
| Jan 07, 2026 | 144 | — | 0001950047-26-000225 | View |
| Dec 03, 2025 | 4/A | Nov 25, 2025 | 0001870293-25-000007 | View |
| Nov 26, 2025 | 4 | Nov 25, 2025 | 0001870293-25-000004 | View |
| Nov 25, 2025 | 144 | — | 0001950047-25-009352 | View |
| Nov 25, 2025 | 144 | — | 0001950047-25-009385 | View |
| Nov 19, 2025 | 4 | Nov 17, 2025 | 0001443669-25-000014 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | — | 0001050442-25-000040 | View |
| Nov 07, 2025 | 144 | — | 0001950047-25-008583 | View |
| Oct 31, 2025 | 8-K | Oct 31, 2025 | 0001443669-25-000011 | View |