YD Bio YDES Insider Ownership

Updated Oct 8, 2026

In the last 12 months, insiders at YD Bio made open-market purchases of $128,525 (34.18K shares) and sold no shares on the open market.

• Among YD Bio insiders, Ethan Shen (CEO) led open-market buying over the past 12 months with $128,525 of purchases (34.18K shares); the latest was on September 14, 2026.
• Away from the open market, YDES insiders acquired 10.96K shares through option exercises and conversions over the last 12 months.
• Business Quant data puts insider holdings in YDES at 11.28Mn shares across insiders' latest Form 4 filings.
• YDES's insiders hold all 11.28Mn shares directly, in their own names, with no indirect holdings.
• Per Business Quant, 3 insiders of YDES hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
• YD Bio's three biggest insider holders are Ethan Shen (CEO, 11.26Mn shares), Shao-Ta Lu (Director, 10.96K shares) and Kochi Chang (Director, 10.96K shares), based on their latest Form 4 filings.
• Ethan Shen alone accounts for 99.81% of the shares held by YD Bio insiders.
• Over the trailing 12 months, 3 insiders reported transactions in YDES stock across 9 Form 4 filings.
• The insider data for YDES reflects Form 4 filings through October 6, 2026.