Yu bin Helen - 28 Aug 2026 Form 4 Insider Report for Baozun Inc. (BZUN)

Reporting relationship: Director
Issuer ticker: BZUN
Reported as of: 28 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 01 Sep 2026, 06:26:49 UTC
Prior SEC filing: 20 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Bin Yu

Key filing fact

Yu bin Helen filed Form 4 for Baozun Inc. (BZUN) on 01 Sep 2026.

Key facts

This page summarizes Yu bin Helen's Form 4 filing for Baozun Inc. (BZUN).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 01 Sep 2026, 06:26.

Change

Previous filing in this sequence was filed on 20 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002122533 Primary reporting owner

Yu Bin Helen

Relationship: Director
Address: LANE 510, WEST JIANGCHANG ROAD, SHANGHAI, CHINA
Signature: /s/ Bin Yu
Signature date: 01 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BZUN transaction

American Depositary Shares

Options Exercise

Transaction value
Shares: +5,603
Change %: +48%
Price: $0.000000^*
Shares after: 17,269
Date: 28 Aug 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

BZUN transaction Derivative

Restricted Stock Unit

Award

Transaction value
Shares: +18,000
Change %: +44%
Price: $0.000000^*
Shares after: 58,809
Date: 28 Aug 2026
Ownership: Direct
Underlying class: Class A Ordinary Shares
Underlying amount: 18,000
Exercise price: $0.000000
Footnotes: F2, F3

BZUN transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -16,809
Change %: -29%
Price: $0.000000^*
Shares after: 42,000
Date: 28 Aug 2026
Ownership: Direct
Underlying class: Class A Ordinary Shares
Underlying amount: 16,809
Exercise price: $0.000000
Footnotes: F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Each of American Depositary Share represents three Class A Ordinary Shares.

Footnote F2

Each Restricted Stock Unit ("RSU") represents the contingent right to receive one Class A ordinary share of the Issuer.

Footnote F3

18,000 RUSs were granted to the reporting person pursuant to the 2022 Share Incentive Plan on August 28, 2026, and each of 7,500 RSUs and 10,500 RSUs shall be vested on May 21, 2029 and May 21, 2030, respectively.

Footnote F4

Of the total 58,809 RSUs, 16,809 RSUs had been fully vested and were converted into 5,603 American Depositary Shares on August 28, 2026.