SEC Form 4
111, Inc. (YI) insider trading
In the 12 months to Oct 26, 2026, 2 YI insiders reported open-market sales of $236.6K across 6 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $236.6K
- 6 filings · 2 insiders
- Open-market purchases
- $0
- 0 filings
Who traded YI, and when
- Sale
YI daily close from Oct 27, 2025 to Oct 26, 2026, between $2.56 and $8.38, last $3.00. 6 sale and 0 purchase filings by 2 insiders, marked at their filing dates. Jian David Sun, Director: sold $149.1K across 3 filings, first filed Jun 11, 2026, last Jun 16, 2026. Yang Luke Chen, Director: sold $87.5K across 3 filings, first filed Jun 16, 2026, last Sep 29, 2026.
Largest mark · tap a row for others
Jian David Sun · Director
Filing 1 of 3 within a week · $149,100 total
Sale $28,157
127,440 shares at $0.22 avg
Filed Jun 11, 2026 · traded Jun 9
Close on filing date $4.28
Jian David Sun · Director
Director
$149.1K soldYang Luke Chen · Director
Director
$87.5K soldOpen-market trades
6 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Jian David Sun | Director | $149.1K | — | 3 | — | |
| Yang Luke Chen | Director | $87.5K | — | 3 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Yang Luke Chen Director | Sale | 176,040 | $0.21 | $36.4K | 413,342 | |
traded | Yang Luke Chen Director | Sale | 137,920 | $0.21 | $29.5K | 451,462 | |
traded | Jian David Sun Director | Sale | 297,340 | $0.23 | $67.2K | 413,211 | |
traded | Yang Luke Chen Director | Sale | 93,920 | $0.23 | $21.6K | 495,462 | |
traded | Jian David Sun Director | Sale | 238,540 | $0.23 | $53.7K | 472,011 | |
traded | Jian David Sun Director | Sale | 127,440 | $0.22 | $28.2K | 583,111 |
GET /stocks/filings/vX/form-4?tickers=YI&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"YI"
],
"issuer_cik": "0001738906",
"owner_cik": "0002121461",
"accession_number": "0001104659-26-111575",
"form_type": "4",
"filing_date": "2026-09-29",
"period_of_report": "2026-09-28",
"issuer_name": "111, Inc.",
"issuer_trading_symbol": "YI",
"owner_name": "Chen Yang Luke",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "RSUs (Class A)",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-28",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 38120,
"transaction_price_per_share": 0.18,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 413342,
"transaction_value": 6861.599999999999,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
},
{
"tickers": [
"YI"
],
"issuer_cik": "0001738906",
"owner_cik": "0002121461",
"accession_number": "0001104659-26-111575",
"form_type": "4",
"filing_date": "2026-09-29",
"period_of_report": "2026-09-28",
"issuer_name": "111, Inc.",
"issuer_trading_symbol": "YI",
"owner_name": "Chen Yang Luke",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "RSUs (Class A)",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-15",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 44000,
"transaction_price_per_share": 0.23,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 495462,
"transaction_value": 10120,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 57 records
- Tax withholding (sold to cover)18 records
- Grants and awards39 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
How current is YI’s insider data?
These are YI Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for YI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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