YD Bio YDESW Insider Ownership

NASDAQ YDESW
$0.41 -0.06 (-12.77%)
At close: Sep 8, 2026 · 4:00 PM EDT

Insider Holdings by Owner

11.26Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
share count not reported for this filer set
Shares Held by Insiders
11.26Mn
filed for Sep 2026
+71,791.39% QoQ
Shares Outstanding
not reported
Direct Holdings
11.26Mn
Indirect: 0
Net Shares Traded (QoQ)
+11.24Mn
net buying in Sep 2026
Insiders Holding Shares
3
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters
Form 4 Holdings

Insiders Holding YDESW

Insiders 3
Shares held 11.26Mn
Of outstanding
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Ethan Phd Shen Ceo 11,242,531 0 11,242,531 99.9% 08 Sep, 2026
2 Shao-Ta Lu Director 7,830 0 7,830 0.1% 01 Jul, 2026
3 Kochi Chang Director 7,830 0 7,830 0.1% 01 Jul, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

13 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
04 Sep, 2026 Ethan Phd Shen Ceo Acquired P 18,378 $3.67 $67.45K 11,242,531 Direct
30 Jun, 2026 Shao-Ta Lu Director Acquired M 5,749 7,830 Direct
30 Jun, 2026 Kochi Chang Director Acquired M 5,749 7,830 Direct
30 Jun, 2026 Kochi Chang Director Acquired A 5,749 $0.00 $0 5,749 Direct
30 Jun, 2026 Kochi Chang Director Disposed M 5,749 $0.00 $0 0 Direct
30 Jun, 2026 Shao-Ta Lu Director Acquired A 5,749 $0.00 $0 5,749 Direct
30 Jun, 2026 Shao-Ta Lu Director Disposed M 5,749 $0.00 $0 0 Direct
31 Mar, 2026 Kochi Chang Director Acquired M 2,081 2,081 Direct
31 Mar, 2026 Shao-Ta Lu Director Acquired M 2,081 2,081 Direct
31 Mar, 2026 Shao-Ta Lu Director Acquired A 2,081 $0.00 $0 2,081 Direct
31 Mar, 2026 Kochi Chang Director Acquired A 2,081 $0.00 $0 2,081 Direct
31 Mar, 2026 Kochi Chang Director Acquired M 2,081 $0.00 $0 0 Direct
31 Mar, 2026 Shao-Ta Lu Director Acquired M 2,081 $0.00 $0 0 Direct