American Shared Hospital Services AMS Insider Ownership

Updated Oct 5, 2026

Across the past 12 months, open-market trades by American Shared Hospital Services insiders were all purchases, totaling $1.34 million (586.47K shares).

• Among American Shared Hospital Services' insiders, the largest open-market purchases in the past 12 months were by Raymond C. Stachowiak (Executive Chairman), totaling $1.34 million (586.47K shares), most recently on June 22, 2026.
• Away from the open market, AMS insiders received 100K shares in stock awards over the last 12 months.
• Business Quant data shows American Shared Hospital Services insiders holding 2.49Mn shares in total in their latest Form 4 filings, unchanged from 2.49Mn shares at the end of Q2 2026 and up 38.93% from 1.79Mn shares at the end of Q3 2025.
• American Shared Hospital Services insiders hold 980.18K shares directly (39.43% of their total) and 1.51Mn shares (60.57%) indirectly, through entities such as trusts and partnerships.
• AMS's insider total is spread across 4 insiders who have filed a Form 4 in the past two years.
• AMS's largest insider holders by reported holdings are Raymond C. Stachowiak (Executive Chairman, 2.28Mn shares), Gary Delanois (Chief Operating Officer, 120K shares) and Raymond Scott Frech (Chief Financial Officer, 50K shares).
• Raymond C. Stachowiak alone accounts for 91.73% of the shares held by American Shared Hospital Services insiders.
• Institutions owned 7.37% of AMS shares as of Q2 2026; insiders' latest Form 4 filings account for about 36.17%, leaving roughly 56.46% with other investors, including the public.
• Over the trailing 12 months, one insider reported transactions in AMS stock across 3 Form 4 filings.
• These insider figures for American Shared Hospital Services are based on Form 4 filings through July 24, 2026.