Transaction · 0001484394-26-000004
ALABAstera Labs, Inc.
Dyckerhoff Stefan A
Dyckerhoff Stefan A, DIR, reported an open-market or private sale at Astera Labs, Inc. involving 81.000000 shares for an estimated $29572.05. Reported holdings after the transaction were 5292.000000 shares. The stored filing text includes a detected 10b5-1 reference.
Open-market sellSEC transaction code SDIR
- Trade date
- Jun 03, 2026
- Filing date
- Jun 05, 2026
How reported position traded is calculated
Shares sold ÷ (holdings after + shares sold). Estimated position before: 5,373 shares.
Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.
ALAB price since this filing
Daily closing prices, with the filing date and available return windowsALAB · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -36.5%1w ago +2.6%1d ago +12.2%
Returns since7d +15.8%30d +28.2%90d180d1y
Transaction facts
Stored Form 4 columns with their raw values
- Type
- Sell Code S
- Identifier
- 0001484394-26-000004 Common Stock
- Transaction date
- Jun 03, 2026 Filed Jun 05, 2026, 09:09 PM · 2d delay
- Shares
- 81 sh $365.09 per share
- Estimated value
- -$29.5k Computed from shares × price
- Holdings after
- 5,292 sh Indirect · By Limited Partnership (TF)
Filing signal explanations
Badges describe filing facts only — not predictions.
Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Repeat Seller 10b5-1 Detected
Filing-only score
-6 points
Compact filing score computed from stored Form 4 facts. Version v1.
Mixed or weak signal
This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.
How this score is calculated
- timely_filing+4 points
reporting_delay_days = 2
Filing reported within two business days of the transaction. - tenb5_1_detected-10 points
is_10b5_1 = true
Stored filing content includes detected 10b5-1 language.
Signed filing-only points, not a probability or expected return. Version v1.
Reported relationships & other filings
Form 4 relationship flags and nearby filing context
Reported roles
No officer title
Officer NoDirector Yes10% NoOther No
Footnotes & amended
- F1
Shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2025.
- F2
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $363.395 to $364.35 inclusive. The Reporting Person undertakes to pro…
- F3
Includes shares to be issued in connection with the vesting of one or more restricted stock units. The Reporting Person shares pecuniary interest in these shares with other parties pursuant to contrac…
- F4
Shares held by a trust of which the Reporting Person is a Trustee. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary interest therein.
- F5
Shares held by a limited partnership of which the Reporting Person is a trustee of a trust which is the general partner. The Reporting Person disclaims beneficial ownership in these shares except as t…
- F6
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $365.00 to $365.49 inclusive. The Reporting Person undertakes to prov…
- F7
These shares represent an award of restricted stock units (RSUs) granted on June 4, 2026 (the Grant Date) under the Astera Labs, Inc. 2024 Stock Option and Incentive Plan. Such award vests in full upo…
- F8
Shares held by an irrevocable trust of which the Reporting Person is a Trustee. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary intere…
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