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

Rhea-AI Filing Summary

Michael Truett Tate, Chief Financial Officer of Astera Labs, reported multiple transactions in the issuer's common stock on August 7–8, 2025. The filing discloses a total of 278,373 shares sold across several block transactions with reported weighted-average prices of $169.608, $170.3396, $171.4778 and $173.8234, and price ranges noted between $169.05 and $174.04. The report also records bona fide gifts of 7,500 shares to the GlobalStar DAF and 10,000 shares to a non-affiliated person.

The filing shows indirect ownership through the Tate 1997 Living Trust and GlobalStar DAF and disclaims direct beneficial ownership beyond any pecuniary interest. Following the reported transactions, the Tate Trust's reported indirect holdings are shown as 501,496 shares. Footnotes state the seller will provide details on the number of shares sold at each separate price upon request.

Positive

• None.

Negative

• The reporting person executed 278,373 shares sold across multiple transactions, which materially reduced reported holdings.
• Indirect holdings reported for the Tate Trust decreased to 501,496 shares following the transactions.
• Sales were executed at prices in the range of $169.05 to $174.04, indicating multiple block trades rather than a single sale price.

Insights

Financial Analyst

TL;DR: Insider sales of 278,373 shares across multiple trades at roughly $169–$174; factual disclosure, impact appears neutral without outstanding-share context.

The Form 4 reports sizable block sales by the CFO in multiple tranches with clear weighted-average prices and disclosed price ranges. These are sales rather than option exercises, and the filer also recorded charitable gifts. Without information on total outstanding shares or recent trading volume, the market impact cannot be assessed from this filing alone. The disclosure is complete in detailing price ranges and recipients.

Corporate Governance Expert

TL;DR: Transactions include sales and charitable gifts; trustee disclaimers and footnote disclosures are present and consistent with Form 4 practice.

The reporting person is identified as an officer and trustee of the Tate 1997 Living Trust. The filing includes customary disclaimers of beneficial ownership for trust-held shares and documents bona fide gifts to a donor-advised fund and a non-affiliated individual. Footnotes offer to provide granular per-price sale data on request, which supports transparency. No regulatory or compliance issues are asserted within the filing.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Tate Michael Truett

(Last) (First) (Middle)

C/O ASTERA LABS, INC.

2345 NORTH FIRST STREET

(Street)

SAN JOSE CA 95131

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
08/07/2025

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	08/07/2025		S		43,184	D	$169.608(1)	575,812	I	By Tate Trust(2)
Common Stock	08/07/2025		S		7,550	D	$170.3396(3)	568,262	I	By Tate Trust(2)
Common Stock	08/07/2025		S		15,141	D	$171.4778(4)	553,121	I	By Tate Trust(2)
Common Stock	08/07/2025		S		34,125	D	$173.8234(5)	518,996	I	By Tate Trust(2)
Common Stock	08/07/2025		G(6)		7,500	D	$0	511,496	I	By Tate Trust(2)
Common Stock	08/07/2025		G(6)		7,500	A	$0	7,500	I	GlobalStar DAF(7)
Common Stock	08/08/2025		G(8)		10,000	D	$0	501,496	I	By Tate Trust(2)
Common Stock								278,373	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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $169.0500 to $169.9900, 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.

2. These shares are owned directly by 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 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.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $170.0500 to $170.8600, 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.

4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $171.0800 to $171.8500, 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.

5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $173.5950 to $174.0400, 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.

6. Represents a bona fide gift of shares to GlobalStar DAF.

7. These shares are directly owned by the GlobalStar DAF, 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.

8. Represents a bona fide gift of shares to a non-affiliated person.

Remarks:

	/s/ Philip Mazzara, Attorney-in-Fact	08/11/2025
	** 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

Who filed the Form 4 for Astera Labs (ALAB)?

Michael Truett Tate, identified as the company's Chief Financial Officer, is the reporting person on this Form 4.

How many Astera Labs (ALAB) shares were sold by the reporting person?

The filing reports a total of 278,373 shares sold across multiple transactions.

At what prices were the ALAB shares sold?

Weighted-average prices reported were $169.608, $170.3396, $171.4778, and $173.8234; footnotes list transaction ranges of $169.05–$174.04.

Were any shares gifted in the Form 4 filing for ALAB?

Yes. The filing reports a bona fide gift of 7,500 shares to the GlobalStar DAF and a gift of 10,000 shares to a non-affiliated person.

What ownership does the Tate Trust hold after the reported transactions?

Following the disclosed transactions, the filing shows the Tate 1997 Living Trust with 501,496 indirect shares.