YI · Insider Trading

111, Inc. American Depositary Shares

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Every open-market purchase and sale reported by YI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings

most recent

Open-Market Buys

code P

Sales

code S

Reporting Insiders

current holders

YI — Recent Form 4 Transactions (latest 2026-09-29)

Filed	Insider	Role	Type	Shares	Value
2026-09-29	Yang Luke Chen	Director	MIXED	+413,342	−$37.62K
2026-09-24	Yang Luke Chen	Director	MIXED	+451,462	−$30.76K
2026-06-16	Yang Luke Chen	Director	MIXED	+495,462	−$22.84K
2026-06-16	Jian David Sun	Director	MIXED	+413,211	−$92.75K
2026-06-12	Jian David Sun	Director	MIXED	+472,011	−$79.23K
2026-06-11	Jian David Sun	Director	MIXED	+583,111	−$53.67K
2026-05-29	Jun Justin Luo	Director	MIXED	+710,551	−$25.52K
2026-05-29	Jian David Sun	Director	MIXED	+710,551	−$25.52K
2026-05-29	Yang Luke Chen	Director	MIXED	+589,382	−$1.24K
2026-05-13	Nee Chuan Teo	Director	A	−811,889	—
2026-05-13	Yang Luke Chen	Director	A	−594,222	—
2026-05-13	Jian David Sun	Director	A	−810,271	—
2026-05-13	Jun Justin Luo	Director	A	−810,271	—

YI — Current Insider Holders

Insider	Role	Shares Held	Value
Yang Luke Chen	Director	594,222	$1.82M
Jian David Sun	Director	472,011	$1.45M
Nee Chuan Teo	Director	19,984	$61.35K
Jun Justin Luo	Director	18,366	$56.38K

YI Insider Trading FAQ

Who are the insiders at YI?

4 officers, directors and 10%+ beneficial owners currently report holdings in YI via SEC Form 4.

Are YI insiders buying or selling?

Across the 13 most recent Form 4 filings for YI, 0 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.

How current is YI insider data?

Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent YI filing is dated 2026-09-29.

How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the YI quote page; the site-wide leaderboard is on the insider transactions hub.