NASDAQ:ASTR 21 June 2025 - 12 February 2026

Astera Labs shares fell 8.8% to $131.00 in Thursday afternoon trading after the company forecast lower gross margins and higher spending. SEC filings revealed a warrant agreement with Amazon tied to up to $6.5 billion in purchases. CFO Michael Tate will retire in March, with Desmond Lynch set to replace him. Fourth-quarter revenue jumped 92% to $270.6 million.

Astera Labs shares dropped 8.4% to $164.50 Monday after a regulatory filing showed general counsel Philip Mazzara plans to sell 30,000 shares worth about $5 million. The stock reversed from a session high near $185, trading over 5 million shares by early afternoon. Semiconductor ETFs rose, but Astera lagged. Investors are watching for further insider filings and signals from hyperscale customers.