| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kenison Michael R. | Chief Operations Officer | 5540 PIONEER CREEK DRIVE, MAPLE PLAIN | /s/ W. Morgan Burns, Attorney-in-Fact | 22 May 2025 | 0001870293 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRLB | Common Stock | Tax liability | $8,337 | -204 | -0.7% | $40.87 | 28,841 | 20 May 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Includes 63 shares of Common Stock of the issuer purchased on May 15, 2025 through the issuer's Employee Stock Purchase Plan program. |