Form 4 for ALAB Astera Labs, Inc.
Accepted 2026-04-03 18:31:47 ET · period of report 2026-04-01 · accession 0001998163-26-000009 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-04-03 18:31 | 2026-04-01 | ALAB | Mazzara Philip | GC, Sec | S - Sale | $107.77 | -10.0K | 118.1K | -8% | -$1.08M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-04-01 | S | D | 3,100 | $106.34 | 124,984 | D | — | — | (F1) The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 29, 2025. (F2) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $105.8600 to $106.8500, 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. |
| 2 | Common | Common Stock | 2026-04-01 | S | D | 1,985 | $107.54 | 122,999 | D | — | — | (F1) The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 29, 2025. (F3) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $106.8900 to $107.8500, 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. |
| 3 | Common | Common Stock | 2026-04-01 | S | D | 3,415 | $108.40 | 119,584 | D | — | — | (F1) The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 29, 2025. (F4) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $107.8900 to $108.8800, 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. |
| 4 | Common | Common Stock | 2026-04-01 | S | D | 1,000 | $109.16 | 118,584 | D | — | — | (F1) The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 29, 2025. (F5) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $108.9100 to $109.6100, 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. |
| 5 | Common | Common Stock | 2026-04-01 | S | D | 500 | $110.35 | 118,084 | D | — | — | (F1) The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 29, 2025. (F6) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $110.0200 to $111.0100, 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. |