# EDGAR Filing Document

**Accession Number:** 0001738906
**File Stem:** 0000950103-26-007127
**Filing Date:** 2026-5
**Character Count:** 7310
**Document Hash:** df244d134aeff78340d6bc9d81a086cd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950103-26-007127.hdr.sgml**: 20260513

**ACCESSION NUMBER**: 0000950103-26-007127

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260511

**FILED AS OF DATE**: 20260513

**DATE AS OF CHANGE**: 20260513

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Sun Jian David
- **CENTRAL INDEX KEY:** 0002122541

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38639
- **FILM NUMBER:** 26970900

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 10TH FLOOR, T1, YUZHONGXIN
- **STREET 2:** NO. 268 YUBEI ROAD, PUDONG NEW AREA
- **CITY:** SHANGHAI
- **PROVINCE COUNTRY:** F4
- **ZIP:** 201204
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** 111, Inc.
- **CENTRAL INDEX KEY:** 0001738906
- **STANDARD INDUSTRIAL CLASSIFICATION:** RETAIL-DRUG STORES AND PROPRIETARY STORES [5912]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 3-4/F, NO.295 ZUCHONGZHI ROAD
- **STREET 2:** PUDONG NEW AREA
- **CITY:** SHANGHAI
- **PROVINCE COUNTRY:** F4
- **ZIP:** 201203
- **BUSINESS PHONE:** 862120536666

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 3-4/F, NO.295 ZUCHONGZHI ROAD
- **STREET 2:** PUDONG NEW AREA
- **CITY:** SHANGHAI
- **PROVINCE COUNTRY:** F4
- **ZIP:** 201203

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** New Peak Group
- **DATE OF NAME CHANGE:** 20180427

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Sun Jian David<br><sub>(Last) (First) (Middle)</sub><br>10TH FLOOR, T1, YUZHONGXIN<br>NO. 268 YUBEI ROAD, PUDONG NEW AREA<br><sub>(Street)</sub><br>SHANGHAI, P.R.C, CHINA 201204<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-11 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>111, Inc. [ YI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| RSUs (Class A)<sup>(1)</sup> | 2018-09-12 |  | A |  | 18366 | D | $0.00 | 18366 | D |  |
| RSUs (Class A)<sup>(2)</sup> | 2026-05-11 |  | A |  | 378737 | D | $0.00 | 397103 | D |  |
| RSUs (Class A)<sup>(3)</sup> | 2026-05-12 |  | A |  | 413168 | D | $0.00 | 810271 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Each RSU represents a contingent right to receive one Class A ordinary share. As of the date of this Form 4, all such RSUs have fully vested.

(2) Represent a grant of 378,737 RSUs, each RSU representing the right to receive one Class A ordinary share of the Issuer, with a grant date of May 11, 2026, which shall vest in full on the grant date.

(3) Represent a grant of 413,168 RSUs, each RSU representing the right to receive one Class A ordinary share of the Issuer, with a grant date of May 12, 2026 and a vesting commencement date of May 12, 2026. Each such grant shall vest as to 25% of the RSUs on each of the first, second, third and fourth anniversaries of May 12, 2026; provided, however, that if the Reporting Person's service with the Issuer or any Service Recipient (as defined in the applicable Award Agreement) terminates in any vesting year other than for Cause (as defined in the applicable Award Agreement), the portion otherwise scheduled to vest for such vesting year shall vest pro rata based on the number of full months actually served by the grantee during such vesting year, with one-twelfth (1/12) of the amount scheduled to vest for such vesting year vesting for each completed month of service in such year.

**Signature:** /s/ Jian Sun  
**Date:** 2026-05-13

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**