111, Inc. (YI) Ownership
YI ownership summary
as of October 18, 2026- Institutions
- 0.7% of shares outstanding
- Insiders
- 28.56% of shares outstanding
- Shares outstanding
- 5.2M
- Float
- 4.7M shares available to trade
- Short interest
- 0.14% 7,014 shares short
- Days to cover
- 0.36 short interest down 34.7% vs prior month
- Institutions 0.66%
- Insiders 28.56%
- Other investors 70.78%
YI top institutional holders
11 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Citadel Advisors Llc | 0.20% | 17K | $54,271 | +17,339 (0.0%) | June 30, 2026 |
| 2 | Renaissance Technologies Corp | 0.15% | 13K | $40,421 | −100 (−0.8%) | June 30, 2026 |
| 3 | Serenus Wealth Advisors, LLC | 0.05% | 4,320 | $13,522 | — | June 30, 2026 |
| 4 | UBS Group AG | 0.02% | 1,597 | $4,999 | +1,497 (+1,497.0%) | June 30, 2026 |
| 5 | SBI Securities Co Ltd | <0.01% | 149 | $466 | +5 (+3.5%) | June 30, 2026 |
| 6 | Morgan Stanley - Brokerage Accounts | <0.01% | 113 | $354 | — | June 30, 2026 |
| 7 | JPMorgan Chase & Co | <0.01% | 47 | $147 | −5 (−9.6%) | June 30, 2026 |
| 8 | Rhumbline Advisers | <0.01% | 22 | $69 | — | June 30, 2026 |
| 9 | Susquehanna International Group, LLP | 0.00% | — | — | −31,947 (−100.0%) | March 31, 2026 |
| 10 | Parafestas Anastasios | 0.00% | — | — | −13,616 (−100.0%) | March 31, 2026 |
| 11 | Citigroup Inc | 0.00% | — | — | −207 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 11, 3 holders added 19K shares and 5 cut 46K.
YI top mutual fund and ETF holders
1 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Nasdaq Composite Index | 0.03% | 2,363 | $7,396 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
YI shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns YI
Institutional investors own 0.7% of 111's shares and insiders 28.56%. The largest holder is Citadel Advisors Llc with 0.20% of the shares (17K), as of June 30, 2026. Among the top 11 institutions, 3 added shares and 5 reduced their stake in the latest filings. Short interest is 0.14% of the float, or 0.36 days of average trading volume. The share count fell 99.4% since 2016.
Related: YI analyst forecast, YI key metrics. See the YI stock overview for the latest quote and news.
YI ownership FAQ
Who owns the most 111 stock?
The largest shareholders of 111 are Citadel Advisors Llc (0.20%), Renaissance Technologies Corp (0.15%), Serenus Wealth Advisors, LLC (0.05%), UBS Group AG (0.02%), SBI Securities Co Ltd (<0.01%).
What percentage of 111 is owned by institutions?
Institutions hold 0.7% of 111's shares outstanding; insiders hold 28.56%.
Which funds own 111?
The largest fund holders of 111 are Fidelity Nasdaq Composite Index (0.03%).
What is 111's short interest?
7,014 shares of 111 were sold short, 0.14% of the float; at the average daily volume it would take 0.36 days to cover.
How many shares of 111 are outstanding?
111 has 5.2M shares outstanding, of which 4.7M are in the public float.