Archer Aviation Inc. (ACHR) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-11 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Archer Aviation Inc. (ACHR) CIK: 0001824502 --- Reporting Owner --- Name: Lentell Eric CIK: 0002016416 Role: Officer (Chief Legal & Strategy Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-06-11 | Code: S (Open market sale) Shares: -3,754 | Price: $5.00 Total Value: $18,763.99 Shares Owned After: 137,330 | Ownership: D (Direct) Footnotes: [F1] Represents shares of the issuer's Class A common stock sold to satisfy the reporting person's tax withholding obligations, which were incurred in connection with the vesting of restricted stock units, which vesting was separately reported on a Form 4 filed with the U.S. Securities and Exchange Commission on May 19, 2026. In accordance with company policy, shares are automatically sold to cover such obligations. [F2] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.98 to $5.035 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. --- Footnotes (Complete Index) --- F1: Represents shares of the issuer's Class A common stock sold to satisfy the reporting person's tax withholding obligations, which were incurred in connection with the vesting of restricted stock units, which vesting was separately reported on a Form 4 filed with the U.S. Securities and Exchange Commission on May 19, 2026. In accordance with company policy, shares are automatically sold to cover such obligations. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.98 to $5.035 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. --- Signature --- /s/ /s/ Eric Lentell (2026-06-15)