Philip Mazzara sold $2.3M of ALAB
General Counsel and Secretary at Astera Labs, Inc.. 6,801 shares at an average of $340.50, traded Aug 17, 2026, filed Aug 19, 2026.
Score components
- +15RoleOfficer
- +25Trade size$2.3M at market
- 0Share of holdings soldSold 6.6% of holdings
- +15Cluster4 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001998163-26-000022, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 17, 2026 | SOpen-market sale Common Stock | -44 | $352.10 | $15k | 103,299 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -82 | $351.24 | $29k | 103,217 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -156 | $349.19 | $54k | 103,061 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -81 | $348.05 | $28k | 102,980 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -269 | $347.02 | $93k | 102,711 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -199 | $346.13 | $69k | 102,512 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -1,310 | $344.99 | $452k | 101,202 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -287 | $343.94 | $99k | 100,915 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -415 | $342.95 | $142k | 100,500 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -125 | $341.71 | $43k | 100,375 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -205 | $340.58 | $70k | 100,170 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -504 | $339.74 | $171k | 99,666 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -610 | $338.58 | $207k | 99,056 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -797 | $337.76 | $269k | 98,259 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -227 | $336.65 | $76k | 98,032 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -136 | $335.42 | $46k | 97,896 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -540 | $334.23 | $180k | 97,356 | Aug 19, 2026 |
| Aug 17, 2026 | SOpen-market sale Common Stock | -814 | $333.64 | $272k | 96,542 | Aug 19, 2026 |
Related signals
Other insiders at Astera Labs, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| Pro nowfree Oct 16, 2026 | Astera Labs, Inc. | Stefan A Dyckerhoff director | $4.7M 12,499 shares | -25% | |
| 33Weak | Astera Labs, Inc. | Manuel Alba director | $51M 183,000 shares | -14% | |
| 33Weak | Astera Labs, Inc. | Stefan A Dyckerhoff director | $3.4M 12,499 shares | -23% | |
| 65Notable | Astera Labs, Inc. | Jitendra Mohan Chief Executive Officer | $31M 90,630 shares | -7% | |
| 60Notable | Astera Labs, Inc. | Sanjay Gajendra President and COO | $31M 90,630 shares | -7% | |
| 40Moderate | Astera Labs, Inc. | Stefan A Dyckerhoff director | $3.9M 12,499 shares | -22% | |
| 35Weak | Astera Labs, Inc. | Manuel Alba director | $61M 136,974 shares | -10% | |
| 35Weak | Astera Labs, Inc. | Manuel Alba director | $17M 37,535 shares | -3% | |
| 35Weak | Astera Labs, Inc. | Manuel Alba director | $3.9M 8,491 shares | -3% | |
| 40Moderate | Astera Labs, Inc. | Stefan A Dyckerhoff director | $5.6M 12,499 shares | -20% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.