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

Astera Labs (ALAB) CEO-linked trusts sell 139,951 shares under 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

Astera Labs, Inc. director and Chief Executive Officer Mohan Jitendra reported open‑market sales of 139,951 shares of Common Stock, carried out on behalf of a living trust. The sales occurred at weighted average prices within ranges between $210.0564 and $250.0100 per share.

The filing states these transactions were executed automatically under a Rule 10b5-1 trading plan adopted by the reporting person on December 1, 2025. The shares are held through a living trust and several estate planning trusts, for which the reporting person disclaims beneficial ownership except for any pecuniary interest.

Positive

  • None.

Negative

  • None.

Insights

CEO-associated trusts executed pre-planned net sales of 139,951 shares.

The Form 4 shows entities associated with Astera Labs CEO Mohan Jitendra selling 139,951 shares of Common Stock in open-market transactions. Prices came from multiple trades, with weighted averages across ranges between $210.0564 and $250.0100 per share.

A footnote explains the sales occurred automatically under a Rule 10b5-1 trading plan adopted on December 1, 2025. Such plans pre-schedule trades, so the timing carries less informational weight about the insider’s short-term view than discretionary sales would.

The filing also details substantial direct and indirect holdings across a living trust and several estate planning trusts, and notes that the reporting person disclaims beneficial ownership except for any pecuniary interest. Overall, this looks like a sizable but structured liquidity event rather than an options exercise or compensation-related transaction.

Insider Mohan Jitendra
Role Chief Executive Officer
Sold 139,951 shs ($31.30M)
Type Security Shares Price Value
Sale Common Stock 27,937 $249.6119 $6.97M
Sale Common Stock 800 $250.0005 $200K
Sale Common Stock 1,996 $210.6728 $421K
Sale Common Stock 5,277 $211.5224 $1.12M
Sale Common Stock 10,474 $212.6365 $2.23M
Sale Common Stock 14,416 $213.6259 $3.08M
Sale Common Stock 18,749 $214.6235 $4.02M
Sale Common Stock 21,739 $215.6179 $4.69M
Sale Common Stock 10,324 $216.5242 $2.24M
Sale Common Stock 5,200 $217.6831 $1.13M
Sale Common Stock 3,247 $218.5888 $710K
Sale Common Stock 1,782 $219.592 $391K
Sale Common Stock 2,356 $220.7731 $520K
Sale Common Stock 1,158 $222.0791 $257K
Sale Common Stock 2,375 $223.3569 $530K
Sale Common Stock 423 $224.0683 $95K
Sale Common Stock 2,400 $225.4273 $541K
Sale Common Stock 1,100 $226.7327 $249K
Sale Common Stock 1,848 $230.4661 $426K
Sale Common Stock 2,320 $231.7346 $538K
Sale Common Stock 2,841 $233.0294 $662K
Sale Common Stock 1,189 $235.36 $280K
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 3,790,032 shares (Indirect, By Living Trust); Common Stock — 1,452,739 shares (Direct, null)
Footnotes (1)
  1. The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2025. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $210.0564 to $211.0346, 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. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $211.0800 to $212.0525, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $212.0959 to $213.0900, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $213.1000 to $214.0988, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $214.1000 to $215.0843, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $215.1100 to $216.1035, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $216.1100 to $217.1000, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $217.1100 to $218.0900, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $218.1315 to $219.1300, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $219.1400 to $220.0000, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $220.1957 to $221.0300, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $221.5000 to $222.4600, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $222.5388 to $223.5300, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $223.9000 to $224.1208, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $225.0600 to $226.0300, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $226.2700 to $227.0600, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $230.1600 to $230.9900, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $231.1800 to $232.1506, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $232.5600 to $233.1700, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $249.0000 to $249.9900, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $250.0000 to $250.0100, 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. 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. 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. 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. 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. 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.
Shares sold 139,951 shares Total Common Stock sold across 22 open-market transactions
Lowest price range $210.0564–$211.0346 Weighted average sale price range from one footnote
Highest price range $249.0000–$250.0100 Weighted average sale price range from another footnote
Direct holdings 1,452,739 shares Common Stock held directly as of 2026-05-18 entry
2021 Trust 1 holdings 700,000 shares Indirect Common Stock held by 2021 Trust 1 as of 2026-05-18
2021 Trust 2 holdings 700,000 shares Indirect Common Stock held by 2021 Trust 2 as of 2026-05-18
2022 Trust 1 holdings 450,001 shares Indirect Common Stock held by 2022 Trust 1 as of 2026-05-18
Estate planning trust holdings 699,999 shares Indirect Common Stock held by an estate planning trust as of 2026-05-18
Rule 10b5-1 trading plan regulatory
"The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
beneficial ownership regulatory
"The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein"
estate planning trust financial
"These shares are owned directly by an estate planning trust (the "Trust"). The Reporting Person disclaims"
Living Trust financial
"These shares are owned directly by a living trust (the "Living Trust"), of which the Reporting Person is a trustee"
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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).
X
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 CALIFORNIA 95131
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Astera Labs, Inc. [ ALAB ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock05/18/2026S(1)1,996D$210.6728(2)3,927,187IBy Living Trust(3)
Common Stock05/18/2026S(1)5,277D$211.5224(4)3,921,910IBy Living Trust(3)
Common Stock05/18/2026S(1)10,474D$212.6365(5)3,911,436IBy Living Trust(3)
Common Stock05/18/2026S(1)14,416D$213.6259(6)3,897,020IBy Living Trust(3)
Common Stock05/18/2026S(1)18,749D$214.6235(7)3,878,271IBy Living Trust(3)
Common Stock05/18/2026S(1)21,739D$215.6179(8)3,856,532IBy Living Trust(3)
Common Stock05/18/2026S(1)10,324D$216.5242(9)3,846,208IBy Living Trust(3)
Common Stock05/18/2026S(1)5,200D$217.6831(10)3,841,008IBy Living Trust(3)
Common Stock05/18/2026S(1)3,247D$218.5888(11)3,837,761IBy Living Trust(3)
Common Stock05/18/2026S(1)1,782D$219.592(12)3,835,979IBy Living Trust(3)
Common Stock05/18/2026S(1)2,356D$220.7731(13)3,833,623IBy Living Trust(3)
Common Stock05/18/2026S(1)1,158D$222.0791(14)3,832,465IBy Living Trust(3)
Common Stock05/18/2026S(1)2,375D$223.3569(15)3,830,090IBy Living Trust(3)
Common Stock05/18/2026S(1)423D$224.0683(16)3,829,667IBy Living Trust(3)
Common Stock05/18/2026S(1)2,400D$225.4273(17)3,827,267IBy Living Trust(3)
Common Stock05/18/2026S(1)1,100D$226.7327(18)3,826,167IBy Living Trust(3)
Common Stock05/18/2026S(1)1,848D$230.4661(19)3,824,319IBy Living Trust(3)
Common Stock05/18/2026S(1)2,320D$231.7346(20)3,821,999IBy Living Trust(3)
Common Stock05/18/2026S(1)2,841D$233.0294(21)3,819,158IBy Living Trust(3)
Common Stock05/18/2026S(1)1,189D$235.363,817,969IBy Living Trust(3)
Common Stock05/19/2026S(1)27,937D$249.6119(22)3,790,032IBy Living Trust(3)
Common Stock05/19/2026S(1)800D$250.0005(23)3,789,232IBy Living Trust(3)
Common Stock699,999IBy Trust(24)
Common Stock700,000IBy 2021 Trust 1(25)
Common Stock700,000IBy 2021 Trust 2(26)
Common Stock450,001IBy 2022 Trust 1(27)
Common Stock450,001IBy 2022 Trust 2(28)
Common Stock1,452,739D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2025.
2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $210.0564 to $211.0346, 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. 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.
4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $211.0800 to $212.0525, 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 $212.0959 to $213.0900, 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 $213.1000 to $214.0988, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $214.1000 to $215.0843, 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.
8. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $215.1100 to $216.1035, 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.
9. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $216.1100 to $217.1000, 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.
10. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $217.1100 to $218.0900, 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.
11. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $218.1315 to $219.1300, 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.
12. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $219.1400 to $220.0000, 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.
13. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $220.1957 to $221.0300, 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.
14. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $221.5000 to $222.4600, 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.
15. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $222.5388 to $223.5300, 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.
16. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $223.9000 to $224.1208, 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.
17. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $225.0600 to $226.0300, 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.
18. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $226.2700 to $227.0600, 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.
19. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $230.1600 to $230.9900, 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.
20. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $231.1800 to $232.1506, 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.
21. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $232.5600 to $233.1700, 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.
22. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $249.0000 to $249.9900, 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.
23. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $250.0000 to $250.0100, 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.
24. 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.
25. 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.
26. 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.
27. 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.
28. 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-Fact05/20/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

How many Astera Labs (ALAB) shares were sold in this Form 4?

Entities associated with the CEO sold 139,951 shares of Astera Labs Common Stock. The Form 4 transaction summary reports 22 open‑market sale transactions, totaling 139,951 shares, executed over two days and reported as non‑derivative sales of Common Stock.

At what prices were the Astera Labs (ALAB) shares sold in the reported transactions?

The shares were sold at weighted average prices within several price ranges from about $210 to $250 per share. Footnotes state specific ranges, including $210.0564–$211.0346 and $249.0000–$250.0100, reflecting multiple trades aggregated into weighted average prices.

Were the Astera Labs (ALAB) share sales by the CEO pre-planned under a Rule 10b5-1 plan?

Yes. The filing states the sales occurred automatically under a Rule 10b5-1 trading plan. A footnote explains the plan was adopted by the reporting person on December 1, 2025, meaning trades were scheduled in advance rather than timed discretionarily.

Who actually owns the Astera Labs (ALAB) shares involved in these Form 4 transactions?

The sold shares are owned by a living trust, with additional holdings in several estate planning trusts. The CEO is a trustee on some trusts and disclaims beneficial ownership of the securities except to the extent of any pecuniary interest described in the footnotes.

Does the Form 4 show other Astera Labs (ALAB) holdings for the CEO besides the sold shares?

Yes. The Form 4 lists remaining direct and indirect Common Stock holdings. Entries include 1,452,739 shares held directly and multiple trust positions such as 700,000, 699,999 and 450,001-share blocks in separately named 2021 and 2022 estate planning trusts.

Were any Astera Labs (ALAB) options or derivatives exercised in this Form 4?

No derivative exercises are reported in this Form 4. The transaction summary shows zero derivative transactions and zero exercise shares, indicating the reported activity relates solely to non‑derivative Common Stock held via trusts.