| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Tate Michael Truett | Chief Financial Officer | C/O ASTERA LABS, INC., 2345 NORTH FIRST STREET, SAN JOSE | /s/ Philip Mazzara, Attorney-in-Fact | 20 Aug 2025 | 0001399546 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALAB | Common Stock | Sale | $1,777,310 | -9,668 | -3.5% | $183.83 | 268,705 | 18 Aug 2025 | Direct | F1, F2 |
| transaction | ALAB | Common Stock | Sale | $1,683,874 | -9,193 | -3.4% | $183.17 | 259,512 | 18 Aug 2025 | Direct | F1, F3 |
| transaction | ALAB | Common Stock | Gift | $0 | -55,785 | -21% | $0.000000 | 203,727 | 19 Aug 2025 | Direct | F4 |
| transaction | ALAB | Common Stock | Gift | $0 | +55,785 | +14% | $0.000000 | 457,281 | 19 Aug 2025 | By Tate Trust | F4, 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 $184.4400 to $183.4500, 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 $183.4400 to $182.8700, 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 | On August 19, 2025, the Reporting Person transferred 55,785 shares of Issuer Common Stock to Tate 1997 Living Trust Dated April 24, 1997 (the "Tate Trust") for no consideration. |
| F5 | These shares are owned directly by the Tate Trust, of which the Reporting Person is a trustee. The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein, and the filing of this Form 4 is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose. |