Astera Labs affiliate proposes $4.7M share sale

The notice attributes 8,333 covered shares to a trust, 3,505 to Dyckerhoff’s individual retirement account and 661 to a limited partnership.

Rhea-AI Filing Summary

Astera Labs, Inc. (ALAB) is the issuer named in an affiliate notice for Stefan A. Dyckerhoff, who proposes to sell 12,499 common shares through Stifel Nicolaus & Company Inc. on NASDAQ on October 7, 2026, with an aggregate market value of $4,700,373.00. The notice lists earlier sales of 12,499 shares on August 6 and September 2, 2026, for gross proceeds of $3,897,584.00 and $3,436,755.00, respectively.

Key Figures

Proposed shares for sale: 12,499 shares Aggregate market value: $4,700,373.00 Shares sold: 12,499 shares +3 more

6 metrics

Proposed shares for sale 12,499 shares Common shares; approximate sale date October 7, 2026

Aggregate market value $4,700,373.00 Proposed sale

Shares sold 12,499 shares August 6, 2026

Gross proceeds $3,897,584.00 Sale on August 6, 2026

Shares sold 12,499 shares September 2, 2026

Gross proceeds $3,436,755.00 Sale on September 2, 2026

Key Terms

Rule 144, Affiliate, Pro-rata distribution

3 terms

Rule 144 regulatory

"definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Affiliate regulatory

"Affiliate"

Pro-rata distribution financial

"Pro-rata distribution from Venture Fund"

A pro-rata distribution is when cash, shares, rights or other assets are divided among investors in proportion to their ownership stake, so each holder gets the same percentage of the total as their share of the company. Think of slicing a pie so everyone receives pieces sized to match how much of the pie they own. For investors this matters because it preserves relative ownership and determines how much value or new securities they receive, and whether they need to buy or sell to maintain their position.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ALAB shares does Stefan A. Dyckerhoff propose to sell?

Stefan A. Dyckerhoff proposes to sell 12,499 common shares through Stifel Nicolaus & Company Inc. on NASDAQ on October 7, 2026, with an aggregate market value of $4,700,373.00.

What earlier ALAB share sales are listed for Stefan A. Dyckerhoff?

The notice lists a sale of 12,499 shares on August 6, 2026, for gross proceeds of $3,897,584.00, and a sale of 12,499 shares on September 2, 2026, for gross proceeds of $3,436,755.00.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/07/2026 - 04:48 PM Accepted by SEC EDGAR 10/07/2026 - 04:47 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001484394
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Astera Labs, Inc.
SEC File Number	001-41979
Address of Issuer	2345 NORTH FIRST STREET SAN JOSE CALIFORNIA 95131
Phone	408-766-3806
Name of Person for Whose Account the Securities are To Be Sold	Dyckerhoff Stefan A
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Affiliate

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Stifel Nicolaus & Company Inc 501 N Broadway St Louis MO 63102	12499	4700373.00	173490000	10/07/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/29/2024	Pro-rata distribution from Venture Fund	Sutter Hill Ventures A CA LP via the Issuer via a private placement			8333	02/07/2020	Cash
Common	11/08/2019	Private Placement	Issuer			3505	11/08/2019	Cash
Common	05/17/2022	Private Placement	Issuer			661	05/17/2022	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Stefan A Dyckerhoff 755 Page Mill Rd Ste A200 Palo Alto CA 94304	Common	09/02/2026	12499	3436755.00
Stefan A Dyckerhoff 755 Page Mill Rd Ste A200 Palo Alto CA 94304	Common	08/06/2026	12499	3897584.00

144: Remarks and Signature

Remarks	Of the shares covered by this Form 144: an aggregate of 8,333 shares were sold by a trust of which Mr. Dyckerhoff is a trustee; 3,505 shares were sold by an individual retirement account for Mr. Dyckerhoff; and 661 shares were sold by a limited partnership of which Mr. Dyckerhoff's trust is the trustee of a trust which is the general partner.
Date of Notice	10/07/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/01/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Kanwalpreet S Kalra under POA
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)