Figma (FIG) shares plunged 8.7% to $17.51 Thursday amid thin trading volume, marking a 73% decline from average session activity. The selloff follows Anthropic's launch of Claude Design - an AI-powered design tool positioned as a direct competitor to Figma's core offerings.

Despite posting strong Q4 results with revenue growth of 40.1% to $303.8M (surpassing EPS estimates), Figma now faces its most significant competitive threat since going public. CEO Dylan Field's recent sale of 250,000 shares at $30.80 in February coincides with broader insider selling totaling ~1.06M shares over 90 days.

The stock's 80% decline from its mid-2025 peak reflects mounting concerns about AI disruption in design software. While Figma maintains dominance with 13 million users and 95% Fortune 500 penetration, Claude Design's accessibility for non-professionals could erode its market position over time.