InsiderSource
ALAB

Astera Labs, Inc.

SEC CIK 1736297
$417.07 +128.1% · 90 days
90-day buys
$0
0 open-market
90-day sells
$437.81M
191 open-market
Net insider flow
−$437.81M
Net selling
Filings shown
457
Most recent
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At a glance

Over the last 90 days, insiders at ALAB have sold a net $437.81M of stock (0 open-market buys vs 191 sells).

Largest recent trade: Gajendra Sanjay sold $39.84M of ALAB, trimming their stake 3%.

Most active filer: Alba Manuel, with 174 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for ALAB, newest first
View on SEC EDGAR ↗
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.1%

Alba Manuel sold $153.4K of ALAB.

−$153.4K
963 sh @ $159
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.1%

Alba Manuel sold $171.5K of ALAB.

−$171.5K
1,068 sh @ $161
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.2%

Alba Manuel sold $658.8K of ALAB.

−$658.8K
4,076 sh @ $162
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.1%

Alba Manuel sold $377.4K of ALAB.

−$377.4K
2,322 sh @ $163
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.6%

Alba Manuel sold $1.76M of ALAB, trimming their stake 1%.

−$1.76M
10,732 sh @ $164
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ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.7%

Alba Manuel sold $2.05M of ALAB, trimming their stake 1%.

−$2.05M
12,468 sh @ $165
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −2.3%

Alba Manuel sold $6.39M of ALAB, trimming their stake 2%.

−$6.39M
38,644 sh @ $165
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.8%

Alba Manuel sold $2.14M of ALAB, trimming their stake 1%.

−$2.14M
12,868 sh @ $167
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.7%

Alba Manuel sold $1.87M of ALAB, trimming their stake 1%.

−$1.87M
11,158 sh @ $168
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.3%

Alba Manuel sold $772.4K of ALAB.

−$772.4K
4,582 sh @ $169
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.5%

Alba Manuel sold $1.51M of ALAB, trimming their stake 1%.

−$1.51M
8,872 sh @ $170
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.9%

Alba Manuel sold $2.34M of ALAB, trimming their stake 1%.

−$2.34M
13,722 sh @ $171
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.8%

Alba Manuel sold $2.09M of ALAB, trimming their stake 1%.

−$2.09M
12,186 sh @ $172
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Dec 3, 2025 ΔOwn −0.4%

Alba Manuel sold $1.09M of ALAB.

−$1.09M
6,309 sh @ $173
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.2%

Lazar Jack R sold $23.9K of ALAB.

−$23.9K
168 sh @ $142
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.5%

Lazar Jack R sold $66.2K of ALAB.

−$66.2K
461 sh @ $144
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.6%

Lazar Jack R sold $84.2K of ALAB, trimming their stake 1%.

−$84.2K
577 sh @ $146
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.2%

Lazar Jack R sold $24.8K of ALAB.

−$24.8K
168 sh @ $148
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.2%

Lazar Jack R sold $32.7K of ALAB.

−$32.7K
219 sh @ $149
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.2%

Lazar Jack R sold $25.3K of ALAB.

−$25.3K
166 sh @ $153
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.2%

Lazar Jack R sold $24.5K of ALAB.

−$24.5K
159 sh @ $154
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.3%

Lazar Jack R sold $45.1K of ALAB.

−$45.1K
286 sh @ $158
ALAB
Astera Labs, Inc.
Sell LAZAR JACK R · Director · Open-market sale · filed Nov 21, 2025 ΔOwn −0.3%

Lazar Jack R sold $47.1K of ALAB.

−$47.1K
296 sh @ $159
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −0.4%

Alba Manuel sold $1.13M of ALAB.

−$1.13M
6,717 sh @ $168
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −0.6%

Alba Manuel sold $1.79M of ALAB, trimming their stake 1%.

−$1.79M
10,586 sh @ $169
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −0.5%

Alba Manuel sold $1.72M of ALAB, trimming their stake 1%.

−$1.72M
10,108 sh @ $170
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −0.6%

Alba Manuel sold $1.99M of ALAB, trimming their stake 1%.

−$1.99M
11,646 sh @ $171
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −0.9%

Alba Manuel sold $2.99M of ALAB, trimming their stake 1%.

−$2.99M
17,373 sh @ $172
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −1.2%

Alba Manuel sold $3.89M of ALAB, trimming their stake 1%.

−$3.89M
22,459 sh @ $173
ALAB
Astera Labs, Inc.
Sell ALBA MANUEL · Director · Open-market sale · filed Sep 4, 2025 ΔOwn −2.0%

Alba Manuel sold $6.31M of ALAB, trimming their stake 2%.

−$6.31M
36,288 sh @ $174
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About ALAB insider activity

This page tracks every recent Form 4 filed for Astera Labs, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is ALAB insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for Astera Labs, Inc. usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.