# EDGAR Filing Document

**Accession Number:** 0001998051
**File Stem:** 0001104659-26-031419
**Filing Date:** 2026-3
**Character Count:** 7668
**Document Hash:** 5a01a6057a545c63df16c96403b26ec1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-031419.hdr.sgml**: 20260318

**ACCESSION NUMBER**: 0001104659-26-031419

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260318

**FILED AS OF DATE**: 20260318

**DATE AS OF CHANGE**: 20260318

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Yang Cailian
- **CENTRAL INDEX KEY:** 0001998051

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41611
- **FILM NUMBER:** 26771179

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** FLOOR 10 BUILDING A, HAISU SQUARE
- **STREET 2:** CHANGNING DISTRICT
- **CITY:** SHANGHAI
- **PROVINCE COUNTRY:** F4
- **ZIP:** 200050
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Hesai Group
- **CENTRAL INDEX KEY:** 0001861737
- **STANDARD INDUSTRIAL CLASSIFICATION:** GENERAL INDUSTRIAL MACHINERY & EQUIPMENT, NEC [3569]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1588 ZHUGUANG ROAD
- **STREET 2:** 9TH FLOOR, BUILDING L2-B
- **CITY:** SHANGHAI
- **STATE:** F4
- **ZIP:** 201702
- **BUSINESS PHONE:** 86 21 31588240

**MAIL ADDRESS:**
- **STREET 1:** 1588 ZHUGUANG ROAD
- **STREET 2:** 9TH FLOOR, BUILDING L2-B
- **CITY:** SHANGHAI
- **STATE:** F4
- **ZIP:** 201702

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Yang Cailian<br><sub>(Last) (First) (Middle)</sub><br>10TH FLOOR, BUILDING A<br>NO. 658 ZHAOHUA ROAD, CHANGNING DISTRICT<br><sub>(Street)</sub><br>SHANGHAI, CHINA 200050<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Hesai Group [ HSAI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-18 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_Vice President of Operations_ | **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 Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| American depositary shares<sup>(1)</sup> | 122632 | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Options (right to buy) | 2021-07-03 | 2028-07-03 | Class B ordinary shares | 181042 | $2.1 | D |  |
| Options (right to buy) | 2022-08-31 | 2028-11-22 | Class B ordinary shares | 9441 | $3.3 | D |  |
| Options (right to buy) | 2023-08-31 | 2028-11-22 | Class B ordinary shares | 9441 | $3.3 | D |  |
| Options (right to buy) | 2024-08-31 | 2028-11-22 | Class B ordinary shares | 9441 | $3.3 | D |  |
| Options (right to buy) | 2025-08-31 | 2028-11-22 | Class B ordinary shares | 9443 | $3.3 | D |  |
| Options (right to buy) | 2025-05-01 | 2030-06-05 | Class B ordinary shares | 9090 | $1.63 | D |  |
| Options (right to buy) | 2026-05-01 | 2030-06-05 | Class B ordinary shares | 9090 | $1.63 | D |  |
| Options (right to buy) | 2027-05-01 | 2030-06-05 | Class B ordinary shares | 9093 | $1.63 | D |  |
| Options (right to buy) | <sup>(2)</sup> | 2030-06-05 | Class B ordinary shares | 2993 | $1.63 | D |  |
| Options (right to buy) | 2026-01-31 | 2031-11-18 | Class B ordinary shares | 8000 | $0.9 | D |  |
| Options (right to buy) | 2027-01-31 | 2031-11-18 | Class B ordinary shares | 8000 | $0.9 | D |  |
| Options (right to buy) | 2028-01-31 | 2031-11-18 | Class B ordinary shares | 8000 | $0.9 | D |  |
| Options (right to buy) | 2029-01-31 | 2031-11-18 | Class B ordinary shares | 8000 | $0.9 | D |  |
| Restricted share units | <sup>(3)</sup> | <sup>(3)</sup> | Class B ordinary shares | 1000 | <sup>(3)</sup> | D |  |
| Restricted share units | <sup>(4)</sup> | <sup>(4)</sup> | Class B ordinary shares | 1000 | <sup>(4)</sup> | D |  |
| Restricted share units | <sup>(5)</sup> | <sup>(5)</sup> | Class B ordinary shares | 1000 | <sup>(5)</sup> | D |  |
| Restricted share units | <sup>(6)</sup> | <sup>(6)</sup> | Class B ordinary shares | 1000 | <sup>(6)</sup> | D |  |

---

### Footnotes:

(1) Each American depositary share represents one Class B ordinary share.

(2) Option to purchase 2,108 Class B ordinary shares has vested as of the date of this filing, and the remaining option will vest on a monthly basis since April 1, 2026, with 62 Class Bordinary shares vesting each month until April 1, 2027 and 79 Class B ordinary shares vesting on May 1, 2027.

(3) Represents restricted share units granted to the reporting person pursuant to the issuer's share incentive plan, which will vest on December 1, 2026 and do not have expiration dates. These restricted share units evidence the contingent right to receive Class B ordinary shares upon vesting.

(4) Represents restricted share units granted to the reporting person pursuant to the issuer's share incentive plan, which will vest on December 1, 2027 and do not have expiration dates. These restricted share units evidence the contingent right to receive Class B ordinary shares upon vesting.

(5) Represents restricted share units granted to the reporting person pursuant to the issuer's share incentive plan, which will vest on December 1, 2028 and do not have expiration dates. These restricted share units evidence the contingent right to receive Class B ordinary shares upon vesting.

(6) Represents restricted share units granted to the reporting person pursuant to the issuer's share incentive plan, which will vest on December 1, 2029 and do not have expiration dates. These restricted share units evidence the contingent right to receive Class B ordinary shares upon vesting.

**Signature:** /s/ Cailian Yang  
**Date:** 2026-03-18

### 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.**