sellWeak cluster of 310b5-1 plan
Manuel Alba sold $32M of ALAB
director at Astera Labs, Inc.. 183,000 shares at an average of $173.27, traded Sep 2, 2025, filed Sep 4, 2025.
Warning score
35Value
$32M
183,000 shares
Holdings after
385,863
-10% from before
From 52-week low
+321%
low $41.36, close $174.24
From 52-week high
-10%
high $193.64, as of Sep 2, 2025
Score components
- +15RoleDirector
- +25Trade size$31.7M at market
- 0Share of holdings soldSold 9.8% of holdings
- +15Cluster3 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
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.
ALABOct 9, 2026 · close 342.21
Since filing Sep 4, 2025: +82.1%SPY +21.6% · excess +60.5%
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 0001736297-25-000129, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -6,717 | $168.23 | $1.1M | 1,867,781 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -10,586 | $168.96 | $1.8M | 1,857,195 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -10,108 | $170.10 | $1.7M | 1,847,087 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -11,646 | $171.16 | $2.0M | 1,835,441 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -17,373 | $172.06 | $3.0M | 1,818,068 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -22,459 | $173.12 | $3.9M | 1,795,609 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -36,288 | $174.02 | $6.3M | 1,759,321 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -4,006 | $175.04 | $701k | 1,755,315 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -9,622 | $176.23 | $1.7M | 1,745,693 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -13,475 | $177.03 | $2.4M | 1,732,218 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -1,870 | $178.22 | $333k | 1,730,348 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -3,262 | $179.25 | $585k | 1,727,086 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Alba Trust10b5-1 | -2,588 | $180.10 | $466k | 1,724,498 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -1,478 | $168.23 | $249k | 417,385 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -2,329 | $168.96 | $394k | 415,056 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -2,224 | $170.10 | $378k | 412,832 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -2,562 | $171.16 | $439k | 410,270 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -3,822 | $172.06 | $658k | 406,448 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -4,941 | $173.12 | $855k | 401,507 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -7,983 | $174.02 | $1.4M | 393,524 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -882 | $175.04 | $154k | 392,642 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -2,116 | $176.23 | $373k | 390,526 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -2,965 | $177.03 | $525k | 387,561 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -411 | $178.22 | $73k | 387,150 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -718 | $179.25 | $129k | 386,432 | Sep 4, 2025 |
| Sep 2, 2025 | SOpen-market sale Common Stockindirect: By Casa Alameda 2007, LLC10b5-1 | -569 | $180.10 | $102k | 385,863 | Sep 4, 2025 |
Related signals
Other insiders at Astera Labs, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 25Weak | 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% | |
| 35Weak | Astera Labs, Inc. | Philip Mazzara General Counsel and Secretary | $1.9M 10,000 shares | -6% | |
| 40Moderate | Astera Labs, Inc. | Jack R Lazar director | $4.0M 22,500 shares | -19% | |
| 62Notable | Astera Labs, Inc. | Michael Truett Tate Chief Financial Officer | $3.5M 18,861 shares | -7% | |
| 65Notable | Astera Labs, Inc. | Jitendra Mohan Chief Executive Officer | $17M 91,441 shares | -4% | |
| 55Moderate | Astera Labs, Inc. | Philip Mazzara General Counsel and Secretary | $1.3M 7,237 shares | -4% | |
| 60Notable | Astera Labs, Inc. | Sanjay Gajendra President and COO | $17M 91,441 shares | -4% | |
| 67Notable | Astera Labs, Inc. | Michael Truett Tate Chief Financial Officer | $19M 100,000 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.