| Date | Issuer | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| Proto Labs Inc. Chief Operations Officer | M | Common Stock | |||||
| Proto Labs Inc. Chief Operations Officer | M | Employee Stock Option (right to buy) | |||||
| Proto Labs Inc. Chief Operations Officer | S | Common Stock | |||||
| Proto Labs Inc. Chief Operations Officer | M | Common Stock | |||||
| Proto Labs Inc. Chief Operations Officer | M | Employee Stock Option (right to buy) |