SEC Form 4 · accession 0001134727-26-000013
Astera Labs, Inc. · ALAB
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Manuel Alba
Director
Period of report
Sep 1, 2026
Accepted (ET)
Sep 3, 2026 · 4:30 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001736297
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2,F3 | Sep 1, 2026 | S | 2,575 | $277.3203 | D | 1,271,923 | I | By Alba Trust |
| Common StockF4,F3 | Sep 1, 2026 | S | 20,991 | $278.3282 | D | 1,250,932 | I | By Alba Trust |
| Common StockF5,F3 | Sep 1, 2026 | S | 37,176 | $279.2802 | D | 1,213,756 | I | By Alba Trust |
| Common StockF6,F3 | Sep 1, 2026 | S | 59,379 | $280.0382 | D | 1,154,377 | I | By Alba Trust |
| Common StockF7,F3 | Sep 1, 2026 | S | 12,882 | $281.158 | D | 1,141,495 | I | By Alba Trust |
| Common StockF8,F3 | Sep 1, 2026 | S | 5,870 | $282.1283 | D | 1,135,625 | I | By Alba Trust |
| Common StockF9,F3 | Sep 1, 2026 | S | 3,954 | $283.185 | D | 1,131,671 | I | By Alba Trust |
| Common StockF10,F3 | Sep 1, 2026 | S | 2,245 | $284.1749 | D | 1,129,426 | I | By Alba Trust |
| Common StockF11,F3 | Sep 1, 2026 | S | 340 | $285.175 | D | 1,129,086 | I | By Alba Trust |
| Common StockF12,F3 | Sep 1, 2026 | S | 2,677 | $286.9944 | D | 1,126,409 | I | By Alba Trust |
| Common StockF13,F3 | Sep 1, 2026 | S | 1,019 | $287.9344 | D | 1,125,390 | I | By Alba Trust |
| Common StockF14,F3 | Sep 1, 2026 | S | 892 | $288.9543 | D | 1,124,498 | I | By Alba Trust |
| Common StockF2,F15 | Sep 1, 2026 | S | 568 | $277.3195 | D | 286,295 | I | By Casa Alameda 2007, LLC |
| Common StockF4,F15 | Sep 1, 2026 | S | 4,618 | $278.3282 | D | 281,677 | I | By Casa Alameda 2007, LLC |
| Common StockF5,F15 | Sep 1, 2026 | S | 8,179 | $279.2804 | D | 273,498 | I | By Casa Alameda 2007, LLC |
| Common StockF6,F15 | Sep 1, 2026 | S | 13,070 | $280.0383 | D | 260,428 | I | By Casa Alameda 2007, LLC |
| Common StockF7,F15 | Sep 1, 2026 | S | 2,835 | $281.1581 | D | 257,593 | I | By Casa Alameda 2007, LLC |
| Common StockF8,F15 | Sep 1, 2026 | S | 1,288 | $282.1281 | D | 256,305 | I | By Casa Alameda 2007, LLC |
| Common StockF9,F15 | Sep 1, 2026 | S | 868 | $283.184 | D | 255,437 | I | By Casa Alameda 2007, LLC |
| Common StockF10,F15 | Sep 1, 2026 | S | 491 | $284.175 | D | 254,946 | I | By Casa Alameda 2007, LLC |
| Common StockF11,F15 | Sep 1, 2026 | S | 74 | $285.175 | D | 254,872 | I | By Casa Alameda 2007, LLC |
| Common StockF12,F15 | Sep 1, 2026 | S | 588 | $286.996 | D | 254,284 | I | By Casa Alameda 2007, LLC |
| Common StockF13,F15 | Sep 1, 2026 | S | 225 | $287.9343 | D | 254,059 | I | By Casa Alameda 2007, LLC |
| Common StockF14,F15 | Sep 1, 2026 | S | 196 | $288.9543 | D | 253,863 | I | By Casa Alameda 2007, LLC |
| Common Stock | holding | — | — | — | 5,000 | I | By spouse | |
| Common Stock | holding | — | — | — | 2,351 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The sales reported in this Form 4 occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 22, 2026.
- F10The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $283.7200 to $284.7100, 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.
- F11The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $284.7600 to $285.5900, 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.
- F12The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $286.3600 to $287.3500, 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.
- F13The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $287.6400 to $288.4100, 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.
- F14The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $288.9400 to $288.9900, 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.
- F15These shares are owned directly by Casa Alameda 2007, LLC, of which the Reporting Person is a manager. The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein, and the filing of this Form 4 is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.
- F2The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $276.7200 to $277.7100, 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.
- F3These shares are owned directly by Manuel Alba-Marquez in trust for Alba 2003 Living Trust (the "Alba Trust"), of which the Reporting Person and his spouse are co-trustees. The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein, and the filing of this Form 4 is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.
- F4The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $277.7200 to $278.7100, 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.
- F5The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $278.7200 to $279.7100, 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.
- F6The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $279.7200 to $280.7100, 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.
- F7The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $280.7200 to $281.7100, 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.
- F8The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $281.7200 to $282.7000, 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.
- F9The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $282.7200 to $283.7000, 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.