Comparable stake leader
Serenus Wealth Advisors, LLC
SEC ownership of 111, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001738906.
Disclosed value leader
Serenus Wealth Advisors, LLC
Comparable rows
0/14
Latest evidence
26 May 2026
- Public ticker
- YI on Nasdaq
- Parsed ownership sources
- 13F and 3/4/5
- Largest SEC-reported holder
- Serenus Wealth Advisors, LLC
- Latest parsed ownership date
- 26 May 2026
- Issuer CIK
- 0001738906
- Issuer location
- Shanghai
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of 111, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Serenus Wealth Advisors, LLC
Disclosed value leader
Serenus Wealth Advisors, LLC
Comparable rows
0/14
Latest evidence
26 May 2026
13F
3/4/5
Highest disclosed value: $321,334
14 rows are not safely comparable across share classes.
Showing 1-8 of 14 holder rows.
Quick read
Serenus Wealth Advisors, LLC has the largest disclosed position value at $321.3K.
0 of 14 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Serenus Wealth Advisors, LLC's linked filing trail.
Disclosed position value
Top 5
Serenus Wealth Advisors, LLC
$321.3K
Yang Luke Chen
$147.3K
RENAISSANCE TECHNOLOGIES LLC
$84.9K
CITIGROUP INC
$1.3K
SBI Securities Co., Ltd.
$939
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 14 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Serenus Wealth Advisors, LLC |
13F
Company
|
—
class O/S missing
|
$321,334
4,320 shares
|
— | 31 Mar 2026 |
| Yang Luke Chen |
3/4/5
Director
|
—
class O/S missing
|
$147,345
589,382 shares
|
-$1,239 | 26 May 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
—
class O/S missing
|
$84,851
13,014 shares
|
— | 31 Mar 2026 |
| CITIGROUP INC |
13F
Company
|
—
class O/S missing
|
$1,341
207 shares
|
— | 31 Mar 2026 |
| SBI Securities Co., Ltd. |
13F
Company
|
—
class O/S missing
|
$939
144 shares
|
— | 31 Mar 2026 |
| MORGAN STANLEY |
13F
Company
|
—
class O/S missing
|
$737
113 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
—
class O/S missing
|
$652
100 shares
|
— | 31 Mar 2026 |
| JPMORGAN CHASE & CO |
13F
Company
|
—
class O/S missing
|
$334
52 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$1,239.
Buys
$0
Insiders: 0
Sells
$1,239
Insiders: 1
Net
-$1,239
Shares: -4,840
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 4,840
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 4,840 | $0 | $1,239 | -$1,239 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-6 of 6 reporting-owner rows connected to 111, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
Yang Luke Chen
Net 12M change
-$1,239
Latest report
26 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Yang Luke Chen | Director | $147,345 | -$1,239 | -0.83% | Filing P/S | 26 May 2026 |
| Gang Yu | Director | Mixed | 18 Mar 2026 | |||
| Junling Liu | Director | Mixed | 18 Mar 2026 | |||
| Jian David Sun | Director | Mixed | 26 May 2026 | |||
| Jun Justin Luo | Director | Mixed | 26 May 2026 | |||
| Teo Nee Chuan | Director | Mixed | 11 May 2026 |
Recent insider transactions for 111, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun Justin Luo | YI | RSUs (Class A) | Sale | -9.02% | -70,440 | 710,551 | 27 May 2026 | Direct | ||
| Jian David Sun | YI | RSUs (Class A) | Sale | -9.02% | -70,440 | 710,551 | 27 May 2026 | Direct | ||
| Yang Luke Chen | YI | RSUs (Class A) | Sale | -0.57% | $850 | $0.2500 | -3,400 | 589,382 | 27 May 2026 | Direct |
| Jun Justin Luo | YI | RSUs (Class A) | Sale | -3.61% | -29,280 | 780,991 | 26 May 2026 | Direct | ||
| Jian David Sun | YI | RSUs (Class A) | Sale | -3.61% | -29,280 | 780,991 | 26 May 2026 | Direct | ||
| Yang Luke Chen | YI | RSUs (Class A) | Sale | -0.24% | $389 | $0.2700 | -1,440 | 592,782 | 26 May 2026 | Direct |
| Jun Justin Luo | YI | RSUs (Class A) | Award | 104% | 413,168 | 810,271 | 12 May 2026 | Direct | ||
| Jian David Sun | YI | RSUs (Class A) | Award | 104% | 413,168 | 810,271 | 12 May 2026 | Direct | ||
| Yang Luke Chen | YI | RSUs (Class A) | Award | 228.2% | 413,168 | 594,222 | 12 May 2026 | Direct | ||
| Teo Nee Chuan | YI | RSUs (Class A) | Award | -33.7% | -413,168 | 811,889 | 12 May 2026 | Direct | ||
| Yang Luke Chen | YI | RSUs (Class A) | Award | -41% | -413,168 | 594,222 | 12 May 2026 | Direct | ||
| Jun Justin Luo | YI | RSUs (Class A) | Award | -33.8% | -413,168 | 810,271 | 12 May 2026 | Direct | ||
| Jian David Sun | YI | RSUs (Class A) | Award | -33.8% | -413,168 | 810,271 | 12 May 2026 | Direct | ||
| Jun Justin Luo | YI | RSUs (Class A) | Award | 2062.2% | 378,737 | 397,103 | 11 May 2026 | Direct | ||
| Jian David Sun | YI | RSUs (Class A) | Award | 2062.2% | 378,737 | 397,103 | 11 May 2026 | Direct | ||
| Yang Luke Chen | YI | RSUs (Class A) | Award | 43.4% | 54,759 | 181,054 | 11 May 2026 | Direct | ||
| Teo Nee Chuan | YI | RSUs (Class A) | Award | -48.7% | -378,737 | 398,721 | 11 May 2026 | Direct | ||
| Yang Luke Chen | YI | RSUs (Class A) | Award | -23.2% | -54,759 | 181,054 | 11 May 2026 | Direct | ||
| Jun Justin Luo | YI | RSUs (Class A) | Award | -48.8% | -378,737 | 397,103 | 11 May 2026 | Direct | ||
| Jian David Sun | YI | RSUs (Class A) | Award | -48.8% | -378,737 | 397,103 | 11 May 2026 | Direct |
* marks a reported price that did not pass the local price check.