Notice of Proposed Sale · 144
PROTO LABS, INC.
PRLBNYSEEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- Proto Labs, Inc.
- Issuer CIK
- 0001443669
- SEC file number
- 001-35435
- Phone
- 7634793680
- Person for whose account securities are to be sold
- DANIEL SCHUMACHER
- Relationships to issuer
- Officer
- Street
- 5540 Pioneer Creek Drive
- City
- Maple Plain
- State / country code
- MN
- Postal code
- 55359
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 5,000 | 445,650.00 | 23,921,897 | 09/24/2026 | NYSE | Morgan Stanley Smith Barney LLC Executive Financial Services |
Broker / market maker — proposed row 1, entry 1
- Name
- Morgan Stanley Smith Barney LLC Executive Financial Services
- Street
- 1 New York Plaza
- Street (continued)
- 8th Floor
- City
- New York
- State / country code
- NY
- Postal code
- 10004
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 02/13/2023 | Restricted Stock Units | Issuer | 5,000 | N | 02/13/2023 | N/A |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| 10b5-1 Sales for DANIEL SCHUMACHER | Common | 09/17/2026 | 4,900 | 417,535.37 |
| 10b5-1 Sales for DANIEL SCHUMACHER | Common | 09/16/2026 | 100 | 8,500.00 |
Seller — prior-sale row 1, entry 1
- Name
- 10b5-1 Sales for DANIEL SCHUMACHER
- Street
- 5540 Pioneer Creek Drive
- City
- Maple Plain
- State / country code
- MN
- Postal code
- 55359
Seller — prior-sale row 2, entry 1
- Name
- 10b5-1 Sales for DANIEL SCHUMACHER
- Street
- 5540 Pioneer Creek Drive
- City
- Maple Plain
- State / country code
- MN
- Postal code
- 55359
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Remarks
The securities to be sold were acquired upon the vesting of restricted stock units during the period of 02/13/2023 through 5/20/2025.
Notice signature
- Notice date
- 09/24/2026
- Signed
- /s/ Daniel Schumacher
- Plan adoption dates
- 06/05/2026
Company context
Protolabs is the world’s fastest manufacturing service enabling companies across every industry to streamline production of quality parts throughout the entire product life cycle. From custom prototyping to end-use production, we support product developers, engineers, and supply chain teams along every phase of their manufacturing journey. Get started now at protolabs.com.