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

Rhea-AI Filing Summary

Astera Labs, Inc. (ALAB) reported a Form 4 for its Chief Executive Officer, who is also a director. On 11/17/2025, the reporting person executed several market sales of Astera Labs common stock, with individual transactions including 4,421, 21,100, 26,381, 32,385, and 6,172 shares at weighted average prices between $147.33 and $143.19 per share.

The filing explains that these sales were automatically executed to cover tax withholding obligations arising from the vesting and settlement of previously granted restricted stock units, based on an advance “sell to cover” election by the company, and did not represent discretionary trades by the CEO. After these transactions, the CEO reported direct ownership of 2,080,418 shares, plus additional indirect holdings through various trusts, including 4,130,002 shares held by a living trust and several estate planning trusts holding between 450,001 and 700,000 shares each.

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

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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^*

Mohan Jitendra

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
11/17/2025

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	11/17/2025		S(1)		4,421	D	$146.6536(2)	2,166,456	D
Common Stock	11/17/2025		S(1)		21,100	D	$145.8837(3)	2,145,356	D
Common Stock	11/17/2025		S(1)		26,381	D	$144.8026(4)	2,118,975	D
Common Stock	11/17/2025		S(1)		32,385	D	$143.8385(5)	2,086,590	D
Common Stock	11/17/2025		S(1)		6,172	D	$143.2526(6)	2,080,418	D
Common Stock								4,130,002	I	By Living Trust(7)
Common Stock								699,999	I	By Trust(8)
Common Stock								700,000	I	By 2021 Trust 1(9)
Common Stock								700,000	I	By 2021 Trust 2(10)
Common Stock								450,001	I	By 2022 Trust 1(11)
Common Stock								450,001	I	By 2022 Trust 2(12)

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. 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.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $147.3300 to $146.4200, 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.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $146.3500 to $145.3700, 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 $145.3500 to $144.3600, 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 $144.3400 to $143.3700, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $143.3450 to $143.1850, 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.

7. These shares are owned directly by a living trust (the "Living 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.

8. These shares are owned directly by an estate planning trust (the "Trust"). 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.

9. These shares are owned directly by an estate planning trust (the "2021 Trust 1"), 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.

10. These shares are owned directly by an estate planning trust (the "2021 Trust 2"), 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.

11. These shares are owned directly by an estate planning trust (the "2022 Trust 1"). 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.

12. These shares are owned directly by an estate planning trust (the "2022 Trust 2"). 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.

Remarks:

	/s/ Philip Mazzara, Attorney-in-Fact	11/19/2025
	** 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 did Astera Labs (ALAB) report in this Form 4?

Astera Labs reported that its Chief Executive Officer and director executed several sales of common stock on 11/17/2025, disclosed as required insider trading activity.

How many Astera Labs (ALAB) shares did the CEO sell on 11/17/2025?

The CEO reported multiple sales, including 4,421, 21,100, 26,381, 32,385 and 6,172 shares of Astera Labs common stock at different weighted average prices on 11/17/2025.

Why were the Astera Labs (ALAB) shares sold by the CEO?

The filing states the shares were sold to satisfy tax withholding obligations related to the vesting and settlement of restricted stock units, under an automatic “sell to cover” arrangement elected by the company.

Were the Astera Labs (ALAB) CEO’s stock sales discretionary trades?

No. The filing explains that the sales were automatic and mandated by a prior company election to fund tax withholding through a “sell to cover,” and do not represent discretionary trades by the CEO.

How many Astera Labs (ALAB) shares does the CEO own directly after these transactions?

Following the reported sales, the CEO directly beneficially owned 2,080,418 shares of Astera Labs common stock.

What indirect Astera Labs (ALAB) holdings are reported for the CEO?

The CEO reported indirect ownership through a living trust holding 4,130,002 shares and several estate planning trusts holding 699,999, 700,000, 700,000, 450,001, and 450,001 shares, while disclaiming beneficial ownership except for any pecuniary interest.