ALBA MANUEL 4

What Happened

• Manuel Alba, a director of Astera Labs, sold a total of 136,974 shares in multiple open-market transactions on July 1, 2026. The sales generated approximately $60.5 million in gross proceeds. Individual blocks were reported at weighted-average prices between about $429.58 and $459.02 per share.
• These were dispositions (sales), typically viewed as routine insider selling rather than a purchase signal.

Key Details

• Transaction date: 2026-07-01 (all reported trades)
• Total shares sold: 136,974; Approximate proceeds: $60,543,453; Price range (reported per-block WAP): ~$429.6 to ~$459.0
• Notable footnotes: Sales occurred automatically under a Rule 10b5-1 trading plan adopted May 29, 2025 (Footnote F1). Some price entries are weighted averages over multiple trades; the filer offers to provide per-trade price breakdowns on request (multiple F# notes). The shares are held in trust (Alba 2003 Living Trust) and the reporting person disclaims beneficial ownership except as to any pecuniary interest (F3).
• Shares owned after the transactions: Not specified in this Part 1 of 3 filing.
• Filing details: This Form 4 was filed in three parts due to EDGAR limitations (Part 1 of 3). No late-filing indication shown in this portion.

Context

• Sales pursuant to pre-established 10b5-1 plans are automatic trades that directors use to reduce timing risk; they do not, by themselves, indicate changed views on company prospects.
• For investors, purchases by insiders are often more informative than routine sales. This filing documents a large, planned sale by a director rather than an opportunistic or special transaction (e.g., exercise + immediate sale).