[Form 4] Astera Labs, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Astera Labs director Stefan A. Dyckerhoff reported insider transactions on 08/13/2025. The filing shows dispositions of common stock: 11,000 shares and 74,154 shares reported as sold. The form lists the reporting person as a director and indicates multiple indirect holdings held through trusts and a limited partnership.

The schedule reports 353,064 shares2,351 shares to be issued upon vesting of restricted stock units and that the reporting person disclaims beneficial ownership except for pecuniary interest.

Positive

• Timely SEC disclosure of insider transactions by a director enhances transparency
• Substantial indirect holdings remain (e.g., 353,064 shares held by a trust), showing continued economic interest
• Footnote disclosure clarifies that 2,351 shares relate to vesting restricted stock units

Negative

• Reported dispositions of common stock totaling 85,154 shares (11,000 and 74,154) could be viewed as reduction in the director's direct exposure
• Several holdings are indirect with disclaimers of beneficial ownership, which may limit clarity on voting control

Insights

Corporate Governance Expert

TL;DR: Routine director disposals disclosed; significant indirect holdings remain under trusts and a limited partnership.

The Form 4 documents two disposals totaling reported sales of common stock on 08/13/2025 while reaffirming the reporting person’s role as a director and the structure of indirect ownership through trusts and a limited partnership. The filing includes standard disclaimers that the reporting person disclaims beneficial ownership except for pecuniary interest. This is a governance disclosure rather than a corporate-action event.

Securities Analyst

TL;DR: Insider sold reported blocks of shares; disclosures provide transparency but show continued indirect exposure.

The transaction codes indicate disposals (D) of 11,000 and 74,154 common shares. Post-transaction holdings include a large indirect stake of 353,064 shares held by a trust and other small indirect holdings. The form notes 2,351 RSU-related shares to be issued, disclosed in a footnote, which is relevant for future share count tracking.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dyckerhoff Stefan A

(Last) (First) (Middle)

755 PAGE MILL ROAD, SUITE A-200

(Street)

PALO ALTO CA 94304-1005

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Astera Labs, Inc. [ ALAB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	08/13/2025		G		11,000	D	$0	353,064	I	By Trust(1)
Common Stock								3,767	I	By DIFT-2(2)
Common Stock								3,765	I	By DIFT-AMD(2)
Common Stock								3,765	I	By DIFT-BAD(2)
Common Stock								3,765	I	By DIFT-SHD(2)
Common Stock								3,765	I	By DIFT-IND(2)
Common Stock								7,936	I	By Limited Partnership (TF)(3)
Common Stock								74,154(4)	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Shares held by a trust of which the Reporting Person is a Trustee. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary interest therein.

2. Shares held by an irrevocable trust of which the Reporting Person is a Trustee. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary interest therein.

3. Shares held by a limited partnership of which the Reporting Person is a trustee of a trust which is the general partner. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary interest therein.

4. Includes 2,351 shares to be issued in connection with the vesting of restricted stock units. The Reporting Person shares pecuniary interest in such shares with other parties pursuant to contractual relationships. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary interest in these shares.

	/s/ Kanwalpreet S. Kalra, Attorney-in-Fact	08/15/2025
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did ALAB director Stefan A. Dyckerhoff report on 08/13/2025?

The Form 4 reports dispositions (transaction code D) of 11,000 shares and 74,154 shares of Astera Labs common stock on 08/13/2025.

How many Astera Labs shares does the filing show as indirectly owned by Dyckerhoff?

The filing lists 353,064 shares beneficially owned indirectly by a trust, plus several smaller indirect holdings (3,765–7,936 shares) and a limited partnership stake.

Does the filing mention restricted stock units (RSUs) for ALAB insider Dyckerhoff?

Yes. A footnote states the 74,154 figure includes 2,351 shares to be issued upon vesting of restricted stock units.

What is the reporting person's relationship to Astera Labs?

The form identifies Stefan A. Dyckerhoff as a Director of Astera Labs, Inc.

Were any derivative securities reported in this Form 4 for ALAB?

No derivative securities are listed in Table II; the filing only details non-derivative common stock transactions.