Dyckerhoff Stefan A 4
4 · Astera Labs, Inc. · Filed Apr 21, 2026
Research Summary
AI-generated summary of this filing
Astera Labs (ALAB) Director Stefan Dyckerhoff Sells 24,998 Shares
What Happened
Stefan A. Dyckerhoff, a director of Astera Labs (ALAB), sold a total of 24,998 shares in open-market transactions on April 17 and April 20, 2026, generating approximately $4,376,258 in proceeds. Transactions included multiple blocks at prices around $175.00–$175.51 per share. The sales were made pursuant to a Rule 10b5-1 trading plan adopted December 1, 2025 — indicating they were pre‑arranged dispositions rather than ad hoc trades.
Key Details
- Total sold: 24,998 shares for about $4,376,258.
- Breakout by date/price:
- 2026-04-17: 3,253 @ $175.00 ($569,275); 7,733 @ $175.00 ($1,353,275); 613 @ $175.00 ($107,275).
- 2026-04-20: 3,757 @ $175.12 ($657,926); 8,933 @ $175.12 ($1,564,347); 709 @ $175.12 ($124,160).
- Price details: Filing notes weighted-average prices; some shares sold in multiple trades at prices ranging $175.00–$175.01 and others $175.02–$175.51 (per footnotes).
- Footnotes of interest:
- F1: Sales executed under a Rule 10b5-1 plan (adopted Dec 1, 2025).
- F2/F5: Weighted-average prices with specified intra-range sale prices available on request.
- F3–F6: Portions of shares are held in trusts/partnerships where the reporting person disclaims beneficial ownership except for pecuniary interest.
- Shares owned after the transactions: not specified in the provided filing excerpt.
- Filing timeliness: Form 4 filed April 21, 2026 for trades on April 17 and April 20 — no late‑filing indication in the material provided.
Context
These were sales (dispositions) under a prearranged 10b5-1 plan, which are commonly used by insiders to sell shares on a scheduled basis and do not necessarily indicate a change in the insider’s view of the company. For retail investors, note that purchases tend to be more informative about insider conviction; routine sales under 10b5-1 plans are often for portfolio or tax planning reasons.
Insider Transaction Report
- Sale
Common Stock
[F1][F2]2026-04-17$175.00/sh−3,253$569,275→ 70,901 total - Sale
Common Stock
[F1][F2][F3]2026-04-17$175.00/sh−7,733$1,353,275→ 345,331 total(indirect: By Trust) - Sale
Common Stock
[F1][F2][F4]2026-04-17$175.00/sh−613$107,275→ 7,323 total(indirect: By Partnership) - Sale
Common Stock
[F1][F5]2026-04-20$175.12/sh−3,757$657,926→ 67,144 total - Sale
Common Stock
[F1][F5][F3]2026-04-20$175.12/sh−8,933$1,564,347→ 336,398 total(indirect: By Trust) - Sale
Common Stock
[F1][F5][F4]2026-04-20$175.12/sh−709$124,160→ 6,614 total(indirect: By Partnership)
- 3,767(indirect: By DIFT-2)
Common Stock
[F6] - 3,765(indirect: By DIFT-AMD)
Common Stock
[F6] - 3,765(indirect: By DIFT-BAD)
Common Stock
[F6] - 3,765(indirect: By DIFT-SHD)
Common Stock
[F6] - 3,765(indirect: By DIFT-IND)
Common Stock
[F6]
Footnotes (6)
- [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 $175.00 to $175.01 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the 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.
- [F3]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.
- [F4]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 to the Reporting Person's pecuniary interest therein.
- [F5]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.02 to $175.51 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the 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.
- [F6]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 interest therein.