Proto Labs Inc — SCHEDULE 13G/A Filings
8 SCHEDULE 13G/A filings on record
This page lists all SCHEDULE 13G/A 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 8 SCHEDULE 13G/A 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 |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-002173 | Mar 27, 2026 | — |
| SCHEDULE 13G/A | — | 0001050442-26-000006 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0001050442-25-000040 | Nov 14, 2025 | — |
| SCHEDULE 13G/A | — | 0001050442-25-000027 | Aug 14, 2025 | — |
| SCHEDULE 13G/A | — | 0002052113-25-003253 | Jul 17, 2025 | — |
| SCHEDULE 13G/A | — | 0001050442-25-000016 | May 15, 2025 | — |
| SCHEDULE 13G/A | — | 0001050442-25-000005 | Feb 14, 2025 | — |
| SCHEDULE 13G/A | — | 0001050442-24-000023 | Nov 14, 2024 | — |