Mazzara Philip's Form 4 filing
Astera Labs, Inc. (ALAB) · filed May 20, 2026
- Accession no.
- 0001998163-26-000016
- Filed
- May 20, 2026
- Trade date
- May 18, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Not checked
This filing lists 18 non-derivative transactions. Open-market sales total $3.26M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Mazzara PhilipCIK 0001998163 | Officer (General Counsel and Secretary) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| May 18, 2026 | Common Stock | SSaleDisposed | −9,204 | $235.36 | −$2,166,253.44 | 109,011 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −990 | $235.41F2 | −$233,055.9 | 108,021 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −116 | $233.19F3 | −$27,050.04 | 107,905 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −99 | $232.81F4 | −$23,048.19 | 107,806 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −387 | $231.31F5 | −$89,516.97 | 107,419 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −186 | $230.28F6 | −$42,832.08 | 107,233 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −55 | $229.54F7 | −$12,624.7 | 107,178 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −275 | $226.71F8 | −$62,345.25 | 106,903 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −90 | $225.76F9 | −$20,318.4 | 106,813 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −35 | $225.01F10 | −$7,875.35 | 106,778 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −245 | $223.75F11 | −$54,818.75 | 106,533 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −189 | $222.20F12 | −$41,995.8 | 106,344 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −170 | $221.01F13 | −$37,571.7 | 106,174 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −274 | $220.20F14 | −$60,334.8 | 105,900 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −356 | $218.87F15 | −$77,917.72 | 105,544 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −364 | $218.06F16 | −$79,373.84 | 105,180 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −646 | $216.97F17 | −$140,162.62 | 104,534 | Direct | |
| May 18, 2026 | Common Stock | SSaleDisposed | −395 | $216.31F18 | −$85,442.45 | 104,139 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F2
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $235.9400 to $235.3600, 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.
Referenced by the price of 1 transaction in Table I.
- F3
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $233.9800 to $233.1600, 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.
Referenced by the price of 1 transaction in Table I.
- F4
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $232.9700 to $232.7700, 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.
Referenced by the price of 1 transaction in Table I.
- F5
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $231.9000 to $230.9300, 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.
Referenced by the price of 1 transaction in Table I.
- F6
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $230.79000 to $229.9400, 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.
Referenced by the price of 1 transaction in Table I.
- F7
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $229.7900 to $228.9350, 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.
Referenced by the price of 1 transaction in Table I.
- F8
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $227.2000 to $226.2800, 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.
Referenced by the price of 1 transaction in Table I.
- F9
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $226.1800 to $225.2700, 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.
Referenced by the price of 1 transaction in Table I.
- F10
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $225.0500 to $224.5000, 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.
Referenced by the price of 1 transaction in Table I.
- F11
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $223.9900 to $223.3000, 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.
Referenced by the price of 1 transaction in Table I.
- F12
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $222.6400 to $221.6800, 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.
Referenced by the price of 1 transaction in Table I.
- F13
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $221.6400 to $220.6500, 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.
Referenced by the price of 1 transaction in Table I.
- F14
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $220.5200 to $219.7000, 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.
Referenced by the price of 1 transaction in Table I.
- F15
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $219.5100 to $218.5300, 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.
Referenced by the price of 1 transaction in Table I.
- F16
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $218.5000 to $217.5400, 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.
Referenced by the price of 1 transaction in Table I.
- F17
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $217.5000 to $216.5200, 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.
Referenced by the price of 1 transaction in Table I.
- F18
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $216.4900 to $216.1000, 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.
Referenced by the price of 1 transaction in Table I.