Transaction · 0001998163-26-000022

Mazzara Philip

Mazzara Philip, GC, SECY, reported an open-market or private sale at Astera Labs, Inc. involving 82.000000 shares for an estimated $28801.41. Reported holdings after the transaction were 103217.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SGC, SECY
ALABAstera Labs, Inc.
Filing timeAug 19
Trade dateAug 17, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$289.02
Pre-filing
1mo ago +5.1%1w ago +9.8%1d ago +11.3%
Returns since
7d +0.4%30d -3.2%90d -3.2%180d -3.2%1y -3.2%

ALAB price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
ALAB since 2026-08-19Filed 16 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001998163-26-000022
Common Stock
Transaction date
Aug 17, 2026
Filed Aug 19, 2026, 10:11 PM · 2d delay
Shares
82 sh
$35.1k per share
Estimated value
-$2.88M
Computed from shares × price
Holdings after
103k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Direct Ownership
+10score
Filing-only score

+10

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

General Counsel and Secretary

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    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 unit…

  2. F2

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $35…

  3. F3

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $35…

  4. F4

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  5. F5

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  6. F6

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  7. F7

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  8. F8

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  9. F9

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  10. F10

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  11. F11

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  12. F12

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $34…

  13. F13

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

  14. F14

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

  15. F15

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

  16. F16

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

  17. F17

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

  18. F18

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

  19. F19

    The price reported in Column 4 is a weighted average price. The shares were sold as part of block trades for multiple security holders of the Issuer in multiple transactions at prices ranging from $33…

Original filing · 0001998163-26-000022
Related transactions

0 other filings

Same reporting owner
Recent company activity

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