AMBA ▼ -4.6% - Ambarella, Inc. $AMBA - Ambarella and Macnica Enter a Long-Term Strategic Distribution Agreement to Accelerate Edge AI Infrastructure and Physical AI Adoption Ambarella shares fell 4.6% today following the company's announcement of a long-term strategic distribution agreement with Macnica to accelerate edge AI infrastructure and physical AI adoption. While the partnership targets growth in AI-related markets, investors may have viewed the news as lacking sufficient detail on near-term revenue impact or financial terms. 03-SEP-2026 04:05 PM ET