Proto Labs Inc — SD Filings
10 SD filings on record
This page lists all SD filings submitted to the SEC by Proto Labs Inc (PRLB), sorted by most recent first. Each row links to the full filing on EdgarLookup. Proto Labs Inc has filed 10 SD documents with the SEC since 2008. To view all SEC filings by Proto Labs Inc, see the full filings list.
All
10-K
10-Q
10-Q/A
144
3
3/A
4
4/A
424B1
424B4
5
5/A
8-A12B
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
NO ACT
PRE 14A
REGDEX
S-1
S-1/A
S-3ASR
S-8
S-8 POS
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SD | SD | 0001628280-25-028318 | May 29, 2025 | — |
| SD | SD | 0001628280-24-025617 | May 29, 2024 | — |
| SD | FORM SD | 0001437749-23-016586 | Jun 5, 2023 | — |
| SD | FORM SD | 0001437749-22-013765 | May 27, 2022 | — |
| SD | FORM SD | 0001437749-21-013481 | May 27, 2021 | — |
| SD | FORM SD | 0001437749-20-011991 | May 29, 2020 | — |
| SD | FORM SD | 0001437749-19-011115 | May 31, 2019 | — |
| SD | FORM SD | 0001437749-18-011184 | Jun 4, 2018 | — |
| SD | FORM SD | 0001437749-17-010378 | May 31, 2017 | — |
| SD | FORM SD | 0001437749-16-033055 | May 31, 2016 | — |