37,535 Astera Labs (ALAB) shares sold under 10b5-1 trading plan
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Astera Labs, Inc. director Manuel Alba reported a series of automatic, pre-planned stock sales linked to entities associated with him. On July 1, 2026, Casa Alameda 2007, LLC and the Alba 2003 Living Trust together sold 37,535 shares of Astera Labs common stock in 29 open-market transactions.
The filing states these sales occurred automatically under a Rule 10b5-1 trading plan adopted on May 29, 2025. Alba disclaims beneficial ownership of the securities held by Casa Alameda 2007, LLC and by the Alba Trust, except to the extent of any pecuniary interest.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Net Seller: 37,535 shares ($16,792,742)
Net Sell
29 txns
Insider
ALBA MANUEL
Role
null
Sold
37,535 shs ($16.79M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 1,520 | $460.0721 | $699K |
| Sale | Common Stock | 2,129 | $461.4701 | $982K |
| Sale | Common Stock | 2,862 | $462.4414 | $1.32M |
| Sale | Common Stock | 2,256 | $463.3535 | $1.05M |
| Sale | Common Stock | 1,394 | $464.4527 | $647K |
| Sale | Common Stock | 343 | $466.1389 | $160K |
| Sale | Common Stock | 995 | $466.8959 | $465K |
| Sale | Common Stock | 1,527 | $467.9952 | $715K |
| Sale | Common Stock | 1,286 | $429.5782 | $552K |
| Sale | Common Stock | 6,630 | $430.7908 | $2.86M |
| Sale | Common Stock | 767 | $432.7922 | $332K |
| Sale | Common Stock | 346 | $433.4288 | $150K |
| Sale | Common Stock | 501 | $434.7802 | $218K |
| Sale | Common Stock | 467 | $435.7564 | $203K |
| Sale | Common Stock | 804 | $436.8202 | $351K |
| Sale | Common Stock | 469 | $437.9321 | $205K |
| Sale | Common Stock | 650 | $438.7871 | $285K |
| Sale | Common Stock | 952 | $440.0527 | $419K |
| Sale | Common Stock | 1,519 | $440.857 | $670K |
| Sale | Common Stock | 984 | $441.7943 | $435K |
| Sale | Common Stock | 1,095 | $442.8714 | $485K |
| Sale | Common Stock | 1,197 | $443.8248 | $531K |
| Sale | Common Stock | 1,330 | $444.9081 | $592K |
| Sale | Common Stock | 948 | $445.8515 | $423K |
| Sale | Common Stock | 898 | $446.9136 | $401K |
| Sale | Common Stock | 883 | $447.8608 | $395K |
| Sale | Common Stock | 1,479 | $448.8476 | $664K |
| Sale | Common Stock | 570 | $449.8885 | $256K |
| Sale | Common Stock | 734 | $450.9443 | $331K |
Holdings After Transaction:
Common Stock — 1,286,004 shares (Indirect, By Alba Trust)
Footnotes (1)
- 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. 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. These 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. 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. 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. 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. 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. 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. 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. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $429.1100 to $430.0700, 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. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $430.1100 to $430.9300, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $432.1800 to $433.1400, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $433.2300 to $433.5600, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $434.2800 to $435.2500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $435.3200 to $436.3100, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $436.3300 to $437.3100, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $437.3300 to $438.3200, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $438.3600 to $439.3200, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $439.3600 to $440.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $440.3600 to $441.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $441.3600 to $442.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $442.3600 to $443.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $443.3600 to $444.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $444.3600 to $445.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $445.3600 to $446.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $446.3600 to $447.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $447.3600 to $448.3500, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $448.3600 to $449.3300, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $449.4200 to $450.4000, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $450.4600 to $451.4500, 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.
Key Figures
Shares sold (total): 37,535 shares
Number of sale transactions: 29 transactions
Example price range (lower band): $429.1100–$430.0700
+3 more
6 metrics
Shares sold (total)
37,535 shares
Net open-market sales on July 1, 2026 by associated entities
Number of sale transactions
29 transactions
Open-market sales of Astera Labs common stock
Example price range (lower band)
$429.1100–$430.0700
Weighted-average price range for one group of sales per footnote
Example price range (higher band)
$466.7000–$467.1000
Weighted-average price range for another group of sales
Rule 10b5-1 plan adoption date
May 29, 2025
Date the pre-planned trading arrangement was adopted
Trading date
July 1, 2026
Date on which the reported sales occurred
Key Terms
Rule 10b5-1 trading plan, weighted average price, beneficial ownership, pecuniary interest, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"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."
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. The shares were sold in multiple transactions..."
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 therein..."
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
"The Reporting Person disclaims beneficial ownership of these securities, except to the extent, if any, of his pecuniary interest therein..."
open-market sale financial
"transaction_action: "open-market sale" and transaction_code_description: "Sale in open market or private transaction""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
FAQ
What did Astera Labs (ALAB) insider Manuel Alba report in this Form 4?
The Form 4 reports that entities associated with director Manuel Alba sold 37,535 Astera Labs common shares in 29 open-market transactions on July 1, 2026, under a pre-arranged Rule 10b5-1 trading plan adopted on May 29, 2025.
Were the Astera Labs (ALAB) insider sales discretionary or pre-planned?
The filing states the sales occurred automatically under a Rule 10b5-1 trading plan adopted on May 29, 2025. Such plans allow insiders to pre-schedule trades, so the July 1, 2026 transactions were executed according to pre-set instructions rather than ad hoc decisions.