| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mazzara Philip | General Counsel and Secretary | C/O ASTERA LABS, INC., 2345 NORTH FIRST STREET, SAN JOSE | /s/ Philip Mazzara | 2025-11-19 | 0001998163 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALAB | Common Stock | Sale | -$66.5K | -454 | -0.3% | $146.42 | 151K | Nov 17, 2025 | Direct | F1, F2 |
| transaction | ALAB | Common Stock | Sale | -$153K | -1.05K | -0.7% | $145.69 | 150K | Nov 17, 2025 | Direct | F1, F3 |
| transaction | ALAB | Common Stock | Sale | -$260K | -1.8K | -1.2% | $144.53 | 148K | Nov 17, 2025 | Direct | F1, F4 |
| transaction | ALAB | Common Stock | Sale | -$189K | -1.31K | -0.89% | $143.51 | 147K | Nov 17, 2025 | Direct | F1, F5 |
| Id | Content |
|---|---|
| F1 | Represents shares of the Issuer's Common Stock required to be sold by the Reporting Person to satisfy tax withholding obligations in connection with the vesting and settlement of restricted stock units previously granted to the Reporting Person. Such sales were automatic and mandated by an election of the Issuer made in advance of the vesting event to require the satisfaction of tax withholding obligations to be funded by a "sell to cover", and does not represent a discretionary trade by the Reporting Person. |
| F2 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $147.0000 to $146.0400, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| F3 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $146.0000 to $145.1000, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| F4 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $145.0000 to $144.0600, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| F5 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $144.0000 to $143.1850, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |