Form 4 Filing for Archer Aviation Inc. - Officer Transactions

This filing details stock transactions by Eric Lentell, Chief Legal & Strategy Officer of Archer Aviation Inc., on May 15, 2026, and May 18, 2026. On May 15, Lentell acquired 87,617 Restricted Stock Units (RSUs) and also disposed of various RSUs totaling 102,446 shares. Concurrently, he disposed of 39,967 shares of Class A Common Stock, with a weighted average price of $6.0611, sold in multiple transactions ranging from $6.005 to $6.135. These sales were to cover tax withholding obligations related to vesting performance RSUs. On May 18, Lentell disposed of an additional 48,169 shares of Class A Common Stock at a weighted average price of $5.9527, sold in multiple transactions ranging from $5.87 to $6.13, also to cover tax withholding obligations related to vesting RSUs. The filing indicates that these RSUs vest in tranches over time, with some subject to specific quarterly vesting schedules starting in 2023 and 2024. The total post-transaction shares for Class A Common Stock after May 18th were 141,084.