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: 2026-05-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Archer Aviation Inc. (ACHR) CIK: 0001824502 --- Reporting Owner --- Name: Rungta Harsh CIK: 0002064297 Role: Officer (Chief Accounting Officer) --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-05-01 | Code: A (Grant or award) Shares: +148,949 | Price: $0.00 Shares Owned After: 148,949 | Ownership: D (Direct) Footnotes: [F1] 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 status as a service provider to the Issuer. [F2] The award shall vest quarterly as to 1/12 of the total award, with the first tranche vesting on May 15, 2026, and vesting thereafter on August 15, November 15, March 1, and May 15. [F3] These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date. --- Footnotes (Complete Index) --- F1: 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 status as a service provider to the Issuer. F2: The award shall vest quarterly as to 1/12 of the total award, with the first tranche vesting on May 15, 2026, and vesting thereafter on August 15, November 15, March 1, and May 15. F3: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date. --- Signature --- /s/ /s/ Eric Lentell as attorney-in-fact for Harsh Rungta (2026-05-08)