Yang Mu - 17 Sep 2026 Form 4 Insider Report for Kanzhun Ltd (BZ)

Reporting relationship: Director
Issuer ticker: BZ
Reported as of: 17 Sep 2026
Net transaction value: -$452,712
SEC form: 4
Accepted by SEC: 18 Sep 2026, 16:02:33 UTC
Prior SEC filing: 01 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Yang Mu

Key filing fact

Yang Mu filed Form 4 for Kanzhun Ltd (BZ) on 18 Sep 2026.

Key facts

This page summarizes Yang Mu's Form 4 filing for Kanzhun Ltd (BZ).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 18 Sep 2026, 16:02.

Change

Previous filing in this sequence was filed on 01 Apr 2026.
Current net transaction value: -$452,712.

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 0002116220 Primary reporting owner

Mu Yang

Relationship: Director
Address: 21/F, GRANDYVIC BUILDING TAIYANGGONG, MIDDLE RD CHAOYANG DISTRICT, BEIJING, CHINA
Signature: /s/ Yang Mu
Signature date: 18 Sep 2026

Reported non-derivative transactions

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

BZ transaction

Class A ordinary shares

Options Exercise

Transaction value
Shares: +122,500
Change %: +150%
Price
Shares after: 204,060
Date: 17 Sep 2026
Ownership: Direct
Footnotes: F1, F2

BZ transaction

Class A ordinary shares

Sale

Transaction value: $452,712
Shares: -60,704
Change %: -30%
Price: $7.46
Shares after: 143,356
Date: 17 Sep 2026
Ownership: Direct
Footnotes: F1, F3, F4

Reported derivative securities

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

BZ transaction Derivative

Restricted Share Unit

Options Exercise

Transaction value
Shares: -80,000
Change %: -50%
Price: $0.000000^*
Shares after: 80,000
Date: 17 Sep 2026
Ownership: Direct
Underlying class: Class A ordinary shares
Underlying amount: 80,000
Exercise price
Footnotes: F5, F6

BZ transaction Derivative

Restricted Share Unit

Options Exercise

Transaction value
Shares: -42,500
Change %: -25%
Price: $0.000000^*
Shares after: 127,500
Date: 17 Sep 2026
Ownership: Direct
Underlying class: Class A ordinary shares
Underlying amount: 42,500
Exercise price
Footnotes: F5, F6

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

These Class A ordinary shares are held through American Depositary Shares ("ADS") of the issuer. Each ADS represents two Class A ordinary shares.

Footnote F2

Represents Class A ordinary shares acquired in the form of ADS upon the vesting of restricted share units ("RSU") on September 17, 2026.

Footnote F3

The shares were sold in a "sell-to-cover" transaction to cover tax withholding obligations in connection with the vesting and settlement of the RSUs.

Footnote F4

Represents weighted average sales price. The shares were sold at prices ranging from $7.45 to $7.4625. The Reporting Person will provide upon request, to the Securities and Exchange Commission (the "SEC"), the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Footnote F5

Each RSU represents a contingent right to receive one Class A ordinary share at settlement.

Footnote F6

The RSUs vested and settled on September 17, 2026.