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: 2026-06-26 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Archer Aviation Inc. (ACHR) CIK: 0001824502 --- Reporting Owner --- Name: Spellacy Michael CIK: 0001829665 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-06-26 | Code: M (Exercise of derivative) Shares: +19,102 | Price: $0.00 Shares Owned After: 73,746 | Ownership: D (Direct) --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-06-26 | Code: M (Exercise of derivative) Shares: -19,102 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F2] Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued service to the Issuer on the applicable vesting date. [F3] The entire award vested or vests on the earlier of the: (i) one year anniversary of the grant date or (ii) date of the Issuer's 2026 annual stockholders' meeting. [F4] These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date. --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F1] The reporting person owns the securities indirectly through Achill Holdings LLC, of which he is the sole managing member. --- Footnotes (Complete Index) --- F1: The reporting person owns the securities indirectly through Achill Holdings LLC, of which he is the sole managing member. F2: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued service to the Issuer on the applicable vesting date. F3: The entire award vested or vests on the earlier of the: (i) one year anniversary of the grant date or (ii) date of the Issuer's 2026 annual stockholders' meeting. F4: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date. --- Signature --- /s/ /s/ Eric Lentell, Attorney-in-Fact for Michael Spellacy (2026-06-30)