股本结构
单位：万股
| 公告日期 | 2021-11-05 | 2021-06-17 | 2020-06-19 | 2019-06-20 | 2018-11-07 | 2018-06-21 |
|---|---|---|---|---|---|---|
| 证券总股本 | 3758.46 | 3792.60 | 3825.81 | 3853.88 | 3901.94 | 3942.75 |
| 普通股本 | 3758.46 | 3792.60 | 3825.81 | 3853.88 | 3901.94 | 3942.75 |
| 优先股 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 其他 | 0.26 | 0.26 | 0.26 | 0.26 | 0.26 | 0.26 |
| 变动日期 | 2021-10-15 | 2021-03-31 | 2019-12-30 | 2019-03-31 | 2018-10-24 | 2018-03-31 |
注释：中概股证券总股本=普通股股本/
存托凭证比例
历史变动
| 公告日期 | 变动后普通股本（万股） | 变动后优先股（万股） | 变动原因 | 变动日期 |
|---|---|---|---|---|
| 2021-11-05 | 3758.46 | 未披露 | 定期报告 | 2021-10-15 |
| 2021-06-17 | 3792.60 | 未披露 |
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From March 31, 2020 To March 31, 2021
Repurchase of treasury stock
|
2021-03-31 |
| 2020-06-19 | 3825.81 | 未披露 |
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From March 31, 2019 to December 30, 2019
Repurchase of treasury stock
|
2019-12-30 |
| 2019-06-20 | 3853.88 | 未披露 |
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from March 31, 2018 to March 31, 2019
Repurchase of treasury stock
|
2019-03-31 |
| 2018-11-07 | 3901.94 | 未披露 | 定期报告 | 2018-10-24 |
| 2018-06-21 | 3942.75 | 未披露 |
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from March 31, 2017 to March 31, 2018
Repurchase of treasury stock
|
2018-03-31 |
| 2017-11-24 | 4010.25 | 未披露 | 定期报告 | 2017-11-17 |
| 2017-06-21 | 4051.32 | 未披露 |
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from March 31, 2016 to March 31, 2017
Repurchase of treasury stock
|
2017-03-31 |
| 2016-11-23 | 4103.22 | 未披露 | 定期报告 | 2016-11-14 |
| 2016-06-09 | 4276.59 | 未披露 |
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from March 31, 2015 to March 31, 2016
Purchase of treasury stock
|
2016-03-31 |
| 2015-07-01 | 4283.33 | 未披露 |
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From March 31, 2014 to March 31, 2015
Exercise of options
|
2015-03-31 |
| 2014-07-03 | 4283.23 | 未披露 |
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from March 31, 2013 to March 31, 2014
Exercise of options
Purchase of treasury stock
|
2014-03-31 |
| 2013-07-02 | 4476.81 | 未披露 |
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from March 31, 2012 to March 31, 2013
Exercise of options and issuance of shares of ESPP
|
2013-03-31 |
| 2012-06-28 | 4447.65 | 未披露 |
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from December 31, 2011 to March 31, 2012
Exercise of options and issuance of shares of ESPP
|
2012-03-31 |
| 2012-04-05 | 4447.60 | 未披露 |
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from December 31, 2010 to December 31, 2011
Exercise of options and issuance of shares of ESPP
Issuance of shares to Sun and exercise of Sun warrants
|
2011-12-31 |
From March 31, 2020 To March 31, 2021
Repurchase of treasury stock
From March 31, 2019 to December 30, 2019
Repurchase of treasury stock
from March 31, 2018 to March 31, 2019
Repurchase of treasury stock
from March 31, 2017 to March 31, 2018
Repurchase of treasury stock
from March 31, 2016 to March 31, 2017
Repurchase of treasury stock
from March 31, 2015 to March 31, 2016
Purchase of treasury stock
From March 31, 2014 to March 31, 2015
Exercise of options
from March 31, 2013 to March 31, 2014
Exercise of options
Purchase of treasury stock
from March 31, 2012 to March 31, 2013
Exercise of options and issuance of shares of ESPP
from December 31, 2011 to March 31, 2012
Exercise of options and issuance of shares of ESPP
from December 31, 2010 to December 31, 2011
Exercise of options and issuance of shares of ESPP
Issuance of shares to Sun and exercise of Sun warrants