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Astera Labs, Inc.

TechnologyRussell 2000

Astera Labs, Inc. insider trading

Astera Labs, Inc. files with the SEC as a Semiconductors & Related Devices company headquartered in San Jose, CA. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent ALAB insider transactions

2 insiders traded ALAB on the open market between Sep 01, 2026 and Sep 02, 2026 — 24 sales worth $45.5M, of which every one was pre-scheduled under a 10b5-1 plan.

Bought
—
Sold
$45.5M

24 of 24 on a 10b5-1 plan

Net
−$45.5M
Insiders
2

Open-market purchases (code P) and sales (code S) from Astera Labs, Inc.'s own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 22, 2026. The live dashboard shows new filings the moment they clear.

Every ALAB Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

ALAB insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 9 insiders traded ALAB on the open market: 0 purchases and 736 sales worth $1.2B, 552 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 0 purchases and 435 sales ($781.8M), by 8 insiders.

QuarterBoughtSold
Q2 2026—−$454.4M198 sales · 145 on a plan
Q1 2026—−$50.5M54 sales · 34 on a plan
Q4 2025—−$61.2M74 sales · 56 on a plan
Q3 2025—−$215.7M109 sales · 86 on a plan
Q2 2025—−$126.3M81 sales · 72 on a plan
Q1 2025—−$83M31 sales · 17 on a plan
Q4 2024—−$220.3M152 sales · 130 on a plan
Q3 2024—−$18M37 sales · 12 on a plan
Largest sale
−$39.8M of ALAB by Gajendra Sanjay (President and COO · Director) on May 21, 2026, under a 10b5-1 plan.

Open-market transactions through Jun 30, 2026most recent first

  • Mayer Bethany10b5-1

    Director

    −$75.8K

    Jun 24, 2026

    193 sh · $392.67

  • Mayer Bethany10b5-1

    Director

    −$65.7K

    Jun 24, 2026

    165 sh · $398.32

  • Mayer Bethany10b5-1

    Director

    −$57.9K

    Jun 24, 2026

    146 sh · $396.49

  • Mayer Bethany10b5-1

    Director

    −$38.7K

    Jun 24, 2026

    99 sh · $391.27

  • Mayer Bethany10b5-1

    Director

    −$21.3K

    Jun 24, 2026

    54 sh · $393.86

  • Mayer Bethany10b5-1

    Director

    −$11.6K

    Jun 24, 2026

    29 sh · $399.96

  • Lazar Jack R10b5-1

    Director

    −$401.9K

    Jun 04, 2026

    1,116 sh · $360.09

  • Lazar Jack R10b5-1

    Director

    −$388.6K

    Jun 04, 2026

    1,101 sh · $352.97

  • Lazar Jack R10b5-1

    Director

    −$336K

    Jun 04, 2026

    946 sh · $355.13

  • Lazar Jack R10b5-1

    Director

    −$318.9K

    Jun 04, 2026

    879 sh · $362.84

  • Lazar Jack R10b5-1

    Director

    −$316.2K

    Jun 04, 2026

    883 sh · $358.14

  • Lazar Jack R10b5-1

    Director

    −$315.1K

    Jun 04, 2026

    877 sh · $359.33

  • Lazar Jack R10b5-1

    Director

    −$308.4K

    Jun 04, 2026

    854 sh · $361.11

  • Lazar Jack R10b5-1

    Director

    −$202K

    Jun 04, 2026

    566 sh · $356.94

  • Lazar Jack R10b5-1

    Director

    −$180.5K

    Jun 04, 2026

    527 sh · $342.55

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

Astera Labs, Inc. company record

SEC industry classification
Semiconductors & Related Devices
Headquarters
San Jose, CA
Incorporated in
DE
Listed on
Nasdaq
SEC Central Index Key
0001736297

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

After insiders bought ALAB

What the stock actually did in the 90 days following each open-market purchase

Don't check ALAB — let it ping you

Get told the moment an insider moves on ALAB

Pro watches Astera Labs, Inc. for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add ALAB to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track ALAB on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read ALAB insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

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This week on the tape: who actually chose to sellThe weekly split of scheduled 10b5-1 selling vs deliberate sales, with the deciders named.

Questions

Are ALAB insiders buying or selling?
Between Sep 01, 2026 and Sep 02, 2026, 2 Astera Labs, Inc. insiders made no open-market purchases and 24 sales worth $45.5M, a net sale of $45.5M. 24 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much ALAB stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 9 Astera Labs, Inc. insiders made no open-market purchases and 736 sales worth $1.2B. 552 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: no purchases and 435 sales ($781.8M). The largest sale was Gajendra Sanjay selling $39.8M on May 21, 2026.
What was the largest recent ALAB insider trade?
Alba Manuel (Director) sold $16.6M of ALAB stock on Sep 01, 2026 at about $280.04 a share, under a pre-scheduled 10b5-1 plan.
When did an insider last buy ALAB shares?
No open-market purchase by a Astera Labs, Inc. insider appears in the filings from Sep 01, 2026 to Sep 02, 2026 — every recorded open-market transaction in that period was a sale.
Where does ALAB insider trading data come from?
From the Form 4 filings Astera Labs, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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