Mazzara Philip 4
4 · Astera Labs, Inc. · Filed Feb 19, 2026
Research Summary
AI-generated summary of this filing
Astera Labs (ALAB) General Counsel Philip Mazzara Sells Shares
What Happened
Philip Mazzara, Astera Labs' General Counsel and Secretary, sold a total of 4,849 shares of ALAB stock in multiple open-market transactions on February 17, 2026, generating approximately $600,327 in proceeds. The individual tranches reported were: 309 shares @ $122.16 ($37,746); 1,713 shares @ $122.84 ($210,433); 1,435 shares @ $123.93 ($177,838); 923 shares @ $124.66 ($115,057); and 469 shares @ $126.34 ($59,253). These sales were reported on a Form 4 filed Feb 19, 2026.
Key Details
- Transaction date: February 17, 2026 (reported Feb 19, 2026) — filing appears timely (within the two-business-day Form 4 window).
- Transaction type: Sale (code S); total shares sold = 4,849; total proceeds ≈ $600,327.
- Price ranges (per footnotes): sales executed across prices from $122.10 to $126.34; several entries show weighted-average prices with full breakdowns available on request (Footnotes F2–F5).
- Reason: Footnote F1 states these were automatic "sell-to-cover" sales to satisfy tax withholding on vested restricted stock units (RSUs), not discretionary trades by the reporting person.
- Shares owned after transaction: not specified in the summary provided.
Context
These were tax-withholding (sell-to-cover) sales tied to RSU vesting, which are routine and generally do not signal insider sentiment about the company. The Form 4 footnotes commit to provide transaction-level price details on request if needed.
Insider Transaction Report
Form 4
Mazzara Philip
General Counsel and Secretary
Transactions
- Sale
Common Stock
[F1][F2]2026-02-17$122.16/sh−309$37,746→ 142,624 total - Sale
Common Stock
[F1][F3]2026-02-17$122.84/sh−1,713$210,433→ 140,911 total - Sale
Common Stock
[F1][F4]2026-02-17$123.93/sh−1,435$177,838→ 139,476 total - Sale
Common Stock
[F1][F5]2026-02-17$124.66/sh−923$115,057→ 138,553 total - Sale
Common Stock
[F1]2026-02-17$126.34/sh−469$59,253→ 138,084 total
Footnotes (5)
- [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 units previously granted to the Reporting Person. Such sales were automatic and mandated by an election of the Issuer made in advance of the vesting event to require the satisfaction of tax withholding obligations to be funded by a "sell to cover", and does not represent a discretionary trade by the Reporting Person.
- [F2]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $122.1000 to $122.2800, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $122.3200 to $123.3000, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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.
- [F4]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $123.3300 to $124.3200, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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.
- [F5]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $124.3500 to $125.3200, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. 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.
Signature
/s/ Philip Mazzara|2026-02-19