Kai Sun - 25 Mar 2026 Form 4 Insider Report for Hesai Group (HSAI)

Reporting relationship: Chief Scientist, Director, 10%+ Owner
Issuer ticker: HSAI
Reported as of: 25 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 Mar 2026, 07:50:56 UTC
Prior SEC filing: 18 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Kai Sun

Key filing fact

Kai Sun filed Form 4 for Hesai Group (HSAI) on 27 Mar 2026.

Key facts

This page summarizes Kai Sun's Form 4 filing for Hesai Group (HSAI).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 27 Mar 2026, 07:50.

Change

Previous filing in this sequence was filed on 18 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 0001998340 Primary reporting owner

Sun Kai

Relationship: Chief Scientist, Director, 10%+ Owner
Address: 10TH FLOOR, BUILDING A,, NO. 658 ZHAOHUA ROAD, CHANGNING DISTRICT, SHANGHAI, CHINA
Signature: /s/ Kai Sun
Signature date: 27 Mar 2026

Reported derivative securities

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

HSAI transaction Derivative

Restricted share units

Award

Transaction value
Shares: +157,000
Change %
Price: $0.000000^*
Shares after: 157,000
Date: 25 Mar 2026
Ownership: Direct
Underlying class: Class B ordinary shares
Underlying amount: 157,000
Exercise price
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Each restricted share unit represents the contingent right to receive one (1) Class B ordinary share upon vesting.

Footnote F2

These restricted share units were granted on March 25, 2026, and vest per annum in four equal installments over a 4-year period, starting from the first anniversary of May 31, 2026, subject to the reporting person's continued service through the applicable vesting date. The restricted share units do not have expiration dates.