Archer Aviation ACHR Insider Ownership

Updated Oct 11, 2026

In the last 12 months, insiders at Archer Aviation made open-market sales of $7.74 million (1.19Mn shares) and bought no shares on the open market.

• Counted by insider, open-market selling of ACHR stock in the past 12 months came from 6 insiders, with no insider buying.
• Thomas Paul Muniz (Chief Technology Officer) was ACHR's largest open-market seller in the past 12 months, with $3.17 million of sales (456.53K shares); the latest was on May 18, 2026.
• Archer Aviation's latest insider trade on the open market was a sale of 45.36K shares for $246,299 by Benjamin Lyon (President, Aircraft Oem) on September 21, 2026.
• Outside the open market, Archer Aviation insiders received 127.73K shares in stock awards and acquired 1.27Mn shares through option exercises and conversions over the past 12 months.
• Business Quant data shows Archer Aviation insiders holding 102.01Mn shares in total in their latest Form 4 filings, or 13.05% of the 781.7Mn shares outstanding; that total is down 0.01% from 102.03Mn shares at the end of Q2 2026.
• Archer Aviation insiders hold 72.96Mn shares directly (71.52% of their total) and 29.06Mn shares (28.48%) indirectly, through entities such as trusts and partnerships.
• The insider holdings in Archer Aviation belong to 13 insiders who have reported on Form 4 within the past two years.
• Archer Aviation's top three insider holders by shares held are Stellantis N.V. (10% owner, 60.49Mn shares), Adam D. Goldstein (Chief Executive Officer, 36.37Mn shares) and Thomas Paul Muniz (Chief Technology Officer, 1.46Mn shares).
• Of the shares held by ACHR insiders, 59.29% belong to Stellantis N.V.
• Institutions held 49.39% of Archer Aviation's outstanding shares in their Q2 2026 13F filings.
• Over the past 12 months, 12 insiders reported transactions in Archer Aviation stock in 49 Form 4 filings.
• The insider holdings and trades above for Archer Aviation reflect Form 4 filings through September 23, 2026.