Astera Labs director sells shares via 10b5-1 plan
Rhea-AI Filing Summary
Astera Labs director Manuel Alba reported pre-planned insider sales tied to an affiliated entity. On July 1, 2026, Casa Alameda 2007, LLC, of which Alba is a manager, sold 8,491 shares of Astera Labs common stock in multiple open-market transactions under a Rule 10b5-1 trading plan adopted on May 29, 2025.
The Form 4 notes weighted average sale prices, with individual trades executed in ranges from $451.4600 to $468.0000 per share. After these transactions, Casa Alameda 2007, LLC held 286,863 shares indirectly, while Alba also reported 2,351 shares held directly and 5,000 shares held indirectly by his spouse. Alba disclaims beneficial ownership of the LLC-held shares except to the extent of any pecuniary interest.
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Insider Trade Summary 10b5-1
Net Seller: 8,491 shares
Net Sell
18 txns
Insider
ALBA MANUEL
Role
Director
Sold
8,491 shs ($3.89M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 971 | $451.9579 | $439K |
| Sale | Common Stock | 265 | $453.1203 | $120K |
| Sale | Common Stock | 436 | $453.8275 | $198K |
| Sale | Common Stock | 720 | $454.9213 | $328K |
| Sale | Common Stock | 637 | $455.8887 | $290K |
| Sale | Common Stock | 747 | $456.9733 | $341K |
| Sale | Common Stock | 1,006 | $457.9983 | $461K |
| Sale | Common Stock | 845 | $459.0184 | $388K |
| Sale | Common Stock | 334 | $460.0732 | $154K |
| Sale | Common Stock | 468 | $461.4695 | $216K |
| Sale | Common Stock | 629 | $462.4406 | $291K |
| Sale | Common Stock | 496 | $463.3543 | $230K |
| Sale | Common Stock | 307 | $464.4516 | $143K |
| Sale | Common Stock | 75 | $466.1309 | $35K |
| Sale | Common Stock | 219 | $466.8959 | $102K |
| Sale | Common Stock | 336 | $467.9949 | $157K |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Common Stock — 286,863 shares (Indirect, By Casa Alameda 2007, LLC);
Common Stock — 5,000 shares (Indirect, By spouse);
Common Stock — 2,351 shares (Direct)
Footnotes (18)
- 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 $451.4600 to $452.4500, 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.
- F3. These 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.
- F4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $452.4600 to $453.4400, 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.
- F5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $453.4900 to $454.4850, 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.
- F6. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $454.5000 to $455.4700, 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.
- F7. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $455.5000 to $456.4700, 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.
- F8. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $456.5100 to $457.4600, 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.
- F9. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $457.5100 to $458.5000, 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.
- F10. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $458.5100 to $459.4400, 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.
- F11. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $459.6000 to $460.4400, 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.
- F12. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $460.9300 to $461.8600, 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.
- F13. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $461.9300 to $462.8800, 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.
- F14. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $462.9600 to $463.9400, 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.
- F15. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $463.9600 to $464.7800, 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.
- F16. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $465.7000 to $466.5100, 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.
- F17. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $466.7000 to $467.1000, 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.
- F18. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $467.9100 to $468.0000, 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.
Key Figures
Shares sold: 8,491 shares
Price range of sales: $451.4600–$468.0000 per share
Indirect LLC holdings after trades: 294,383 shares
+5 more
8 metrics
Shares sold
8,491 shares
Total common shares sold on July 1, 2026
Price range of sales
$451.4600–$468.0000 per share
Ranges from multiple open-market transactions
Indirect LLC holdings after trades
294,383 shares
Common stock held by Casa Alameda 2007, LLC after sales
Direct holdings
2,351 shares
Common stock held directly by Manuel Alba
Spouse-held shares
5,000 shares
Common stock held indirectly by spouse
Number of sale transactions
16 transactions
Non-derivative open-market sales summarized in Form 4
Trading plan adoption date
May 29, 2025
Date Rule 10b5-1 plan was adopted
Reporting date of transactions
July 1, 2026
Date of reported sales
Key Terms
Rule 10b5-1 trading plan, weighted average price, beneficial ownership, pecuniary interest, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
beneficial ownership regulatory
"The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"except to the extent, if any, of his pecuniary interest therein"
Section 16 regulatory
"beneficial owner of these securities for purposes of Section 16 or for any other purpose."
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.
FAQ
What insider transaction did Astera Labs (ALAB) disclose for Manuel Alba?
Astera Labs director Manuel Alba reported automatic open-market sales of 8,491 common shares through Casa Alameda 2007, LLC on July 1, 2026. These transactions were executed under a pre-established Rule 10b5-1 trading plan adopted on May 29, 2025, according to the filing footnotes.
Was Manuel Alba’s Astera Labs stock sale part of a Rule 10b5-1 trading plan?
Yes. The Form 4 states the sales occurred automatically under a Rule 10b5-1 trading plan adopted on May 29, 2025. Such plans pre-schedule trades, indicating these transactions were planned in advance rather than timed in response to recent company developments.
How many sale transactions and what net direction are shown in Astera Labs’ Form 4?
The transaction summary indicates 16 sale transactions and two holding entries, with no purchases or option exercises. In total, 8,491 shares were sold, resulting in a net-sell direction for the period reported, as summarized in the filing’s transaction overview section.
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