Sec Form 3 Filing - Tate Michael Truett @ Astera Labs, Inc. - 2024-03-19

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Tate Michael Truett 2. Issuer Name and Ticker or Trading Symbol Astera Labs, Inc. [ ALAB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O ASTERA LABS, INC., 2901 TASMAN DRIVE, SUITE 205 3. Date of Earliest Transaction (MM/DD/YY) 03/19/2024 (Street) SANTA CLARA, CA95054 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 1,300,069 ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Series A Preferred $ 0 ( 6 ) ( 6 ) Common Stock 879,108 I By Tate Trust ( 7 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Tate Michael Truett C/O ASTERA LABS, INC. 2901 TASMAN DRIVE, SUITE 205 SANTA CLARA, CA95054 Chief Financial Officer Signatures /s/ Philip Mazzara, Attorney-in-Fact 03/19/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes an award of 169,125 restricted stock units ("RSUs") granted on August 23, 2022 under the Astera Labs, Inc. Amended and Restated 2018 Equity Incentive Plan ("2018 Plan"), of which 105,703 RSUs are currently unvested. Such award vests upon satisfaction of both (i) a time-based condition, which provides that the RSUs shall vest as to 25% on August 15, 2023 and the remaining RSUs shall vest in 36 equal monthly installments thereafter, and (ii) a performance-based condition, which is satisfied upon the occurrence of a change in control of the Issuer or the consummation of an initial public offering of the Issuer's equity securities, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. ( 2 )Includes an award of 61,455 RSUs granted on August 9, 2023 under the 2018 Plan, all of which RSUs are currently unvested. Such award vests upon satisfaction of both (i) a time-based condition, which provides that the RSUs shall vest as to 25% on August 15, 2024 and the remaining RSUs shall vest in 36 equal monthly installments thereafter, and (ii) a performance-based condition, which is satisfied upon the occurrence of a change in control of the Issuer or the consummation of an initial public offering of the Issuer's equity securities, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. ( 3 )Includes an award of 50,000 RSUs granted on January 24, 2024 under the 2018 Plan, all of which RSUs are currently unvested. Such award vests upon satisfaction of both (i) a time-based condition, which provides that the RSUs shall vest as to 25% on February 15, 2025 and the remaining RSUs shall vest in 12 equal quarterly installments thereafter, and (ii) a performance-based condition, which is satisfied upon the occurrence of a change in control of the Issuer or the consummation of an initial public offering of the Issuer's equity securities, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. ( 4 )Includes an award of 37,500 RSUs granted on February 7, 2024 under the 2018 Plan, all of which RSUs are currently unvested. Such award vests upon satisfaction of both (i) a time-based condition, which provides that 100% of the RSUs shall vest on February 15, 2025 and (ii) a performance-based condition, which is satisfied upon the occurrence of a change in control of the Issuer or the consummation of an initial public offering of the Issuer's equity securities, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. ( 5 )Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. ( 6 )Each share of Series A Preferred Stock shall automatically convert into one share of Common Stock on a one-for-one basis, immediately upon the closing of the Issuer's initial public offering. The shares of Series A Preferred Stock have no expiration date. ( 7 )These shares are owned directly by Michael T Tate and Jeanne Larue Tate as Trustees of the Tate 1997 Living Trust Dated April 24, 1997 (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 3 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.

Remarks: Exhibit 24 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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