v3.26.1
SHARE BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2025
SHARE BASED COMPENSATION  
Schedule of share-based compensation expenses were allocated in operating expenses by function

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For the year ended

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December 31, 

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2023

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2024

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2025

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  ​ ​ ​

RMB

  ​ ​ ​

RMB

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RMB

  ​ ​ ​

US$

Sales and marketing expenses

 

11,422

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19,207

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30,584

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4,365

General and administrative expenses(1)

 

228,084

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345,639

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542,564

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77,440

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239,506

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364,846

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573,148

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81,805

(1)

Includes share based compensation expenses of RMB40.9 million, RMB74.0 million and RMB114.8 million (US$16.4 million) in “research and development expenses”, which was a component of “General and administrative expenses”, for the years ended December 31, 2023, 2024 and 2025, respectively.

2019 Plan  
SHARE BASED COMPENSATION  
Summary of the employee equity award activity

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Weighted-

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average

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Weighted-

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remaining

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Aggregate

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Number of

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average

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contractual

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intrinsic

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options

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exercise price

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term

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Value

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US$

  ​ ​ ​

Years

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US$

Outstanding as of December 31, 2022

 

28,444,511

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0.0002

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7.24

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Granted

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—

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—

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Exercised

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(24,108,314)

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0.0002

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82,205

Forfeit

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(243,016)

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0.0002

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Outstanding as of December 31, 2023

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4,093,181

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0.0002

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6.34

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Granted

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—

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—

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Exercised

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(2,749,765)

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0.0002

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86,175

Forfeit

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—

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0.0002

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Outstanding as of December 31, 2024

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1,343,416

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0.0002

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4.28

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Granted

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—

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—

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Exercised

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(1,343,416)

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0.0002

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5,816

Forfeit

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—

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0.0002

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Outstanding as of December 31, 2025

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—

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0.0002

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—

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Fully vested and exercised as of December 31, 2025

 

66,695,568

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0.0002

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3.82

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288,728

2021 plan  
SHARE BASED COMPENSATION  
Summary of the employee equity award activity

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Weighted-Average

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Grant-Date

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Number

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Fair Value

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of RSUs

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US$

Unvested as of December 31, 2022

 

4,184,296

 

1.23

Granted

 

10,551,248

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3.05

Vested

 

(13,239,120)

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2.52

Forfeited or cancelled

 

(117,792)

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3.08

Unvested as of December 31, 2023

 

1,378,632

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2.56

Granted

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20,414,456

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2.76

Vested

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(17,225,016)

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2.76

Forfeited or cancelled

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(1,369,632)

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2.76

Unvested as of December 31, 2024

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3,198,440

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2.74

Granted

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25,123,272

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3.36

Vested

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(23,461,904)

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3.26

Forfeited or cancelled

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(1,250,216)

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3.37

Unvested as of December 31, 2025

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3,609,592

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3.44