股本结构
单位：万股
| 公告日期 | 2025-11-07 | 2025-08-08 | 2025-05-09 | 2025-03-07 | 2025-03-10 | 2025-03-07 |
|---|---|---|---|---|---|---|
| 证券总股本 | 1495.66 | 1495.99 | 1496.11 | 1396.84 | 1393.69 | 1395.26 |
| 普通股本 | 1495.66 | 1495.99 | 1496.11 | 1396.84 | 1393.69 | 1395.26 |
| 优先股 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 其他 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 变动日期 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2025-03-04 | 2025-02-28 | 2024-12-31 |
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 |
|---|---|---|---|---|
| 2025-11-07 | 1495.66 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Repurchase of common shares
|
2025-09-30 |
| 2025-08-08 | 1495.99 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Share-based compensation
Repurchase of common shares
|
2025-06-30 |
| 2025-05-09 | 1496.11 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Share issuances
Share-based compensation
Repurchase of common shares
|
2025-03-31 |
| 2025-03-07 | 1396.84 | 未披露 | 定期报告 | 2025-03-04 |
| 2025-03-10 | 1393.69 | 未披露 | 定期报告 | 2025-02-28 |
| 2025-03-07 | 1395.26 | 未披露 |
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From December 31, 2023 to December 31, 2024
Share-based compensation
Repurchase of common shares
|
2024-12-31 |
| 2024-11-08 | 1404.23 | 未披露 | 定期报告 | 2024-11-04 |
| 2024-11-08 | 1401.07 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Repurchase of common shares
|
2024-09-30 |
| 2024-08-09 | 1409.55 | 未披露 | 定期报告 | 2024-08-06 |
| 2024-08-09 | 1408.32 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Repurchase of common shares
|
2024-06-30 |
| 2024-05-10 | 1419.12 | 未披露 | 定期报告 | 2024-05-06 |
| 2024-05-10 | 1416.00 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Repurchase of common shares
Share-based compensation
|
2024-03-31 |
| 2024-03-13 | 1417.65 | 未披露 | 定期报告 | 2024-03-08 |
| 2024-03-13 | 1407.39 | 未披露 | 定期报告 | 2024-03-01 |
| 2024-03-13 | 1412.18 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Repurchase of common shares
Share-based compensation
|
2023-12-31 |
| 2024-03-05 | 1490.48 | 未披露 | 定期报告 | 2023-12-13 |
| 2023-11-13 | 1425.57 | 未披露 | 定期报告 | 2023-11-07 |
| 2023-11-13 | 1421.79 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Share-based compensation
Repurchase of common shares
|
2023-09-30 |
| 2023-08-11 | 1437.12 | 未披露 | 定期报告 | 2023-08-07 |
| 2023-08-11 | 1433.10 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Repurchase of common shares
|
2023-06-30 |
| 2023-05-12 | 1444.91 | 未披露 | 定期报告 | 2023-05-08 |
| 2023-05-12 | 1443.00 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Repurchase of common shares
Share-based compensation
|
2023-03-31 |
| 2023-03-13 | 1439.54 | 未披露 | 定期报告 | 2023-03-07 |
| 2023-03-13 | 1436.66 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Repurchase of common shares
Share-based compensation
Return of common stock - Methotrexate
|
2022-12-31 |
| 2022-11-14 | 1446.41 | 未披露 | 定期报告 | 2022-11-07 |
| 2022-11-08 | 1443.66 | 未披露 | 定期报告 | 2022-09-30 |
| 2022-08-12 | 1466.19 | 未披露 | 定期报告 | 2022-08-08 |
| 2022-08-12 | 1464.97 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Share-based compensation
Repurchase of common shares
|
2022-06-30 |
| 2022-05-13 | 1476.65 | 未披露 | 定期报告 | 2022-05-09 |
| 2022-05-13 | 1473.08 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Share-based compensation
Repurchase of common shares
|
2022-03-31 |
| 2022-03-11 | 1484.03 | 未披露 | 定期报告 | 2022-03-07 |
| 2022-03-16 | 1465.52 | 未披露 | 定期报告 | 2022-03-01 |
| 2022-03-11 | 1474.28 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Share-based compensation
Repurchase of common shares
|
2021-12-31 |
| 2021-12-27 | 1475.46 | 未披露 | 定期报告 | 2021-12-23 |
| 2021-11-12 | 1480.96 | 未披露 | 定期报告 | 2021-11-08 |
| 2021-11-12 | 1485.05 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Share-based compensation
Repurchase of common shares
|
2021-09-30 |
| 2021-08-13 | 1487.96 | 未披露 | 定期报告 | 2021-08-09 |
| 2021-08-13 | 1492.61 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Repurchase of common shares
|
2021-06-30 |
| 2021-05-14 | 1505.00 | 未披露 | 定期报告 | 2021-05-10 |
| 2021-05-14 | 1508.45 | 未披露 |
更多>>
From December 31, 2020 To March 31, 2021
Share-based compensation
Repurchase of common shares
|
2021-03-31 |
| 2021-03-12 | 1492.07 | 未披露 | 定期报告 | 2021-03-08 |
| 2021-03-15 | 1492.66 | 未披露 | 定期报告 | 2021-03-02 |
| 2021-03-12 | 1498.84 | 未披露 |
更多>>
from December 31, 2019 to December 31, 2020
Share-based compensation
Repurchase of common shares
|
2020-12-31 |
| 2020-12-11 | 1501.66 | 未披露 | 定期报告 | 2020-12-11 |
| 2020-11-13 | 1503.69 | 未披露 | 定期报告 | 2020-11-09 |
| 2020-11-13 | 1508.44 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Share-based compensation
Repurchase of common shares
|
2020-09-30 |
| 2020-08-14 | 1513.86 | 未披露 | 定期报告 | 2020-08-10 |
| 2020-07-24 | 1516.03 | 未披露 | 定期报告 | 2020-07-21 |
| 2020-08-14 | 1518.13 | 未披露 |
更多>>
from March 31, 2020 to June 30, 2020
Share-based compensation
Repurchase of common shares
|
2020-06-30 |
| 2020-05-22 | 1523.07 | 未披露 | 定期报告 | 2020-05-18 |
| 2020-05-22 | 1531.85 | 未披露 |
更多>>
from December 31, 2019 to March 31, 2020
Share-based compensation
Repurchase of common shares
|
2020-03-31 |
| 2020-03-20 | 1518.14 | 未披露 | 定期报告 | 2020-03-16 |
| 2020-03-20 | 1521.06 | 未披露 | 定期报告 | 2020-03-02 |
| 2020-03-20 | 1526.36 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Share-based compensation
Repurchase of common shares
Vesting of common stock
|
2019-12-31 |
| 2019-11-13 | 1518.39 | 未披露 | 定期报告 | 2019-11-06 |
| 2019-11-13 | 1523.13 | 未披露 |
更多>>
From June 30, 2019 to September 30, 2019
Share-based compensation
Repurchase of common shares
|
2019-09-30 |
| 2019-08-14 | 1537.38 | 未披露 | 定期报告 | 2019-08-09 |
| 2019-08-14 | 1547.11 | 未披露 |
更多>>
from March 31, 2019 to June 30, 2019
Share-based compensation
Repurchase of common shares
|
2019-06-30 |
| 2019-05-15 | 1553.71 | 未披露 | 定期报告 | 2019-05-10 |
| 2019-05-15 | 1554.75 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Share-based compensation
Repurchase of common shares
|
2019-03-31 |
| 2019-03-12 | 1544.74 | 未披露 | 定期报告 | 2019-03-05 |
| 2019-03-14 | 1544.80 | 未披露 | 定期报告 | 2019-03-01 |
| 2019-03-12 | 1548.15 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Proceeds from the sale of common stock, net of offering costs
Share-based compensation
Repurchase of common shares
|
2018-12-31 |
| 2018-11-14 | 1552.76 | 未披露 | 定期报告 | 2018-11-09 |
| 2018-08-14 | 1556.81 | 未披露 | 定期报告 | 2018-08-09 |
| 2018-08-14 | 1560.47 | 未披露 |
更多>>
from December 31, 2017 to June 30, 2018
Proceeds from the sale of common stock, net of offering costs
Share-based compensation
Repurchase of common shares
|
2018-06-30 |
| 2018-05-09 | 1571.10 | 未披露 | 定期报告 | 2018-05-04 |
| 2018-05-09 | 1572.73 | 未披露 |
更多>>
from December 31, 2017 to March 31, 2018
Proceeds from the sale of common stock, net of offering costs
Share-based compensation
Repurchase of common shares
|
2018-03-31 |
| 2018-03-15 | 1565.24 | 未披露 | 定期报告 | 2018-03-02 |
| 2018-03-09 | 1572.31 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Share-based compensation
Charitable contribution of shares
Repurchase of common shares
|
2017-12-31 |
| 2017-11-08 | 1574.81 | 未披露 | 定期报告 | 2017-11-03 |
| 2017-11-08 | 1578.17 | 未披露 |
更多>>
From December 31,2016 To September 30, 2017
Share-based compensation
Repurchase of common shares
|
2017-09-30 |
| 2017-08-09 | 1589.66 | 未披露 | 定期报告 | 2017-08-04 |
| 2017-08-09 | 1593.76 | 未披露 |
更多>>
From December 31, 2016 to June 30, 2017
Share-based compensation
Repurchase of common shares
|
2017-06-30 |
| 2017-05-15 | 1603.40 | 未披露 | 定期报告 | 2017-05-11 |
| 2017-05-15 | 1606.53 | 未披露 |
更多>>
from December 31, 2016 to March 31, 2017
Share-based compensation
Repurchase of common shares
|
2017-03-31 |
| 2017-03-13 | 1601.34 | 未披露 | 定期报告 | 2017-03-06 |
| 2017-03-13 | 1607.42 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Share-based compensation
Repurchase of common shares
|
2016-12-31 |
| 2016-11-03 | 1618.06 | 未披露 | 定期报告 | 2016-11-01 |
| 2016-11-03 | 1619.56 | 未披露 |
更多>>
from December 31, 2015 to September 30, 2016
Share-based compensation
Repurchase of common shares
|
2016-09-30 |
| 2016-08-05 | 1622.56 | 未披露 | 定期报告 | 2016-08-03 |
| 2016-08-05 | 1623.63 | 未披露 |
更多>>
from December 31, 2015 to June 30, 2016
Share-based compensation
Repurchase of common shares
|
2016-06-30 |
| 2016-05-13 | 1622.28 | 未披露 | 定期报告 | 2016-05-09 |
| 2016-05-13 | 1629.68 | 未披露 |
更多>>
from December 31, 2015 to March 31, 2016
Share-based compensation
Repurchase of common shares
|
2016-03-31 |
| 2016-03-16 | 1631.39 | 未披露 | 定期报告 | 2016-03-04 |
| 2016-03-14 | 1637.95 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2015-12-31 |
| 2015-11-06 | 1645.27 | 未披露 | 定期报告 | 2015-11-02 |
| 2015-11-06 | 1649.62 | 未披露 |
更多>>
From December 31, 2014 to September 30, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2015-09-30 |
| 2015-08-07 | 1662.82 | 未披露 | 定期报告 | 2015-08-03 |
| 2015-08-07 | 1670.35 | 未披露 |
更多>>
From December 31, 2014 to June 30, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2015-06-30 |
| 2015-05-15 | 1683.12 | 未披露 | 定期报告 | 2015-05-11 |
| 2015-05-15 | 1693.58 | 未披露 |
更多>>
From December 31, 2014 to March 31, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2015-03-31 |
| 2015-03-13 | 1695.53 | 未披露 | 定期报告 | 2015-03-06 |
| 2015-03-09 | 1696.82 | 未披露 | 定期报告 | 2015-03-05 |
| 2015-03-09 | 1711.90 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Share-based compensation
Repurchase of common shares
|
2014-12-31 |
| 2014-11-07 | 1735.81 | 未披露 | 定期报告 | 2014-11-03 |
| 2014-11-07 | 1742.38 | 未披露 |
更多>>
from December 31, 2013 to September 30, 2014
Share-based compensation
Repurchase of common shares
|
2014-09-30 |
| 2014-08-08 | 1757.77 | 未披露 | 定期报告 | 2014-08-04 |
| 2014-08-08 | 1766.04 | 未披露 |
更多>>
from December 31, 2013 to June 30, 2014
Share-based compensation
Repurchase of common shares
|
2014-06-30 |
| 2014-05-12 | 1776.48 | 未披露 | 定期报告 | 2014-05-02 |
| 2014-05-12 | 1780.73 | 未披露 |
更多>>
from December 31, 2013 to March 31, 2014
Share-based compensation
Repurchase of common shares
|
2014-03-31 |
| 2014-03-13 | 1786.80 | 未披露 | 定期报告 | 2014-03-07 |
| 2014-03-11 | 1787.86 | 未披露 | 定期报告 | 2014-03-03 |
| 2014-03-11 | 1798.55 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2013-12-31 |
| 2013-11-06 | 1810.58 | 未披露 | 定期报告 | 2013-10-29 |
| 2013-11-06 | 1815.80 | 未披露 |
更多>>
from December 31, 2012 to September 30, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2013-09-30 |
| 2013-08-09 | 1826.59 | 未披露 | 定期报告 | 2013-07-29 |
| 2013-08-09 | 1830.64 | 未披露 |
更多>>
from December 31, 2012 to June 30, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2013-06-30 |
| 2013-05-08 | 1844.57 | 未披露 | 定期报告 | 2013-04-29 |
| 2013-05-08 | 1854.97 | 未披露 |
更多>>
From December 31, 2012 to March 31, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2013-03-31 |
| 2013-03-14 | 1910.13 | 未披露 | 定期报告 | 2013-03-08 |
| 2013-03-12 | 1871.78 | 未披露 | 定期报告 | 2013-03-01 |
| 2013-03-12 | 1893.71 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
|
2012-12-31 |
| 2012-11-02 | 1911.05 | 未披露 | 定期报告 | 2012-10-27 |
| 2012-11-02 | 1917.38 | 未披露 |
更多>>
from December 31, 2011 to September 30, 2012
Stock-based compensation—nonemployees
Exercise of options and related tax benefit
Repurchase of shares
|
2012-09-30 |
| 2012-08-09 | 1958.92 | 未披露 | 定期报告 | 2012-07-27 |
| 2012-08-09 | 1969.92 | 未披露 |
更多>>
from December 31, 2011 to June 30, 2012
Stock-based compensation - nonemployees
Exercise of options and related tax benefit
Repurchase of shares
|
2012-06-30 |
| 2012-05-04 | 1976.71 | 未披露 | 定期报告 | 2012-04-27 |
| 2012-05-04 | 1987.06 | 未披露 |
更多>>
from December 31, 2011 to March 31, 2012
Stock-based compensation - nonemployees
Exercise of options and related tax benefit
Repurchase of shares
|
2012-03-31 |
| 2012-03-07 | 1998.75 | 未披露 | 定期报告 | 2012-03-01 |
| 2012-03-07 | 2002.05 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Stock-based compensation – nonemployees
Repurchase of common shares
Exercise of options and related tax benefit
|
2011-12-31 |
| 2011-11-07 | 2017.73 | 未披露 | 定期报告 | 2011-10-28 |
| 2011-11-07 | 2021.59 | 未披露 |
更多>>
from December 31, 2010 to September 30, 2011
Stock-based compensation - nonemployees
Exercise of options and related tax benefit
Repurchase of shares
|
2011-09-30 |
| 2011-08-08 | 2038.18 | 未披露 | 定期报告 | 2011-07-29 |
| 2011-08-08 | 2040.01 | 未披露 |
更多>>
From Dec 31 2010 to Jun 30 2011
Exercise of options and related tax benefit
Repurchase of shares
|
2011-06-30 |
| 2011-05-09 | 2048.79 | 未披露 | 定期报告 | 2011-05-04 |
| 2011-05-09 | 2046.88 | 未披露 |
更多>>
Exercise of options and related tax benefit
Repurchase of shares
|
2011-03-31 |
| 2011-03-11 | 2041.15 | 未披露 | 定期报告 | 2011-03-01 |
| 2011-03-11 | 2033.85 | 未披露 |
更多>>
Issuance of common stock for services received
Repurchase of common shares
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price and statutory tax withholdings
|
2010-12-31 |
| 2010-11-15 | 2031.03 | 未披露 | 定期报告 | 2010-11-08 |
| 2010-11-15 | 2035.38 | 未披露 |
更多>>
Stock-based compensation — nonemployees
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price
Repurchase of shares
|
2010-09-30 |
| 2010-08-16 | 2025.38 | 未披露 | 定期报告 | 2010-08-12 |
| 2010-08-16 | 2035.86 | 未披露 |
更多>>
Stock-based compensation - nonemployees
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price
Repurchase of shares
|
2010-06-30 |
| 2010-05-17 | 2043.72 | 未披露 | 定期报告 | 2010-05-17 |
| 2010-05-17 | 2041.36 | 未披露 |
更多>>
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price
Repurchase of shares
|
2010-03-31 |
From June 30, 2025 to September 30, 2025
Repurchase of common shares
From March 31, 2025 to June 30, 2025
Share-based compensation
Repurchase of common shares
From December 31, 2024 to March 31, 2025
Share issuances
Share-based compensation
Repurchase of common shares
From December 31, 2023 to December 31, 2024
Share-based compensation
Repurchase of common shares
From June 30, 2024 to September 30, 2024
Repurchase of common shares
From March 31, 2024 to June 30, 2024
Repurchase of common shares
From December 31, 2023 to March 31, 2024
Repurchase of common shares
Share-based compensation
From December 31, 2022 to December 31, 2023
Repurchase of common shares
Share-based compensation
From June 30, 2023 to September 30, 2023
Share-based compensation
Repurchase of common shares
From March 31, 2023 to June 30, 2023
Repurchase of common shares
From December 31, 2022 to March 31, 2023
Repurchase of common shares
Share-based compensation
From December 31, 2021 to December 31, 2022
Repurchase of common shares
Share-based compensation
Return of common stock - Methotrexate
From March 31, 2022 to June 30, 2022
Share-based compensation
Repurchase of common shares
From December 31, 2021 to March 31, 2022
Share-based compensation
Repurchase of common shares
From December 31, 2020 to December 31, 2021
Share-based compensation
Repurchase of common shares
From June 30, 2021 to September 30, 2021
Share-based compensation
Repurchase of common shares
From March 31, 2021 to June 30, 2021
Repurchase of common shares
From December 31, 2020 To March 31, 2021
Share-based compensation
Repurchase of common shares
from December 31, 2019 to December 31, 2020
Share-based compensation
Repurchase of common shares
From June 30, 2020 to September 30, 2020
Share-based compensation
Repurchase of common shares
from March 31, 2020 to June 30, 2020
Share-based compensation
Repurchase of common shares
from December 31, 2019 to March 31, 2020
Share-based compensation
Repurchase of common shares
from December 31, 2018 to December 31, 2019
Share-based compensation
Repurchase of common shares
Vesting of common stock
From June 30, 2019 to September 30, 2019
Share-based compensation
Repurchase of common shares
from March 31, 2019 to June 30, 2019
Share-based compensation
Repurchase of common shares
from December 31, 2018 to March 31, 2019
Share-based compensation
Repurchase of common shares
from December 31, 2017 to December 31, 2018
Proceeds from the sale of common stock, net of offering costs
Share-based compensation
Repurchase of common shares
from December 31, 2017 to June 30, 2018
Proceeds from the sale of common stock, net of offering costs
Share-based compensation
Repurchase of common shares
from December 31, 2017 to March 31, 2018
Proceeds from the sale of common stock, net of offering costs
Share-based compensation
Repurchase of common shares
from December 31, 2016 to December 31, 2017
Share-based compensation
Charitable contribution of shares
Repurchase of common shares
From December 31,2016 To September 30, 2017
Share-based compensation
Repurchase of common shares
From December 31, 2016 to June 30, 2017
Share-based compensation
Repurchase of common shares
from December 31, 2016 to March 31, 2017
Share-based compensation
Repurchase of common shares
from December 31, 2015 to December 31, 2016
Share-based compensation
Repurchase of common shares
from December 31, 2015 to September 30, 2016
Share-based compensation
Repurchase of common shares
from December 31, 2015 to June 30, 2016
Share-based compensation
Repurchase of common shares
from December 31, 2015 to March 31, 2016
Share-based compensation
Repurchase of common shares
from December 31, 2014 to December 31, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
From December 31, 2014 to September 30, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
From December 31, 2014 to June 30, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
From December 31, 2014 to March 31, 2015
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
from December 31, 2013 to December 31, 2014
Share-based compensation
Repurchase of common shares
from December 31, 2013 to September 30, 2014
Share-based compensation
Repurchase of common shares
from December 31, 2013 to June 30, 2014
Share-based compensation
Repurchase of common shares
from December 31, 2013 to March 31, 2014
Share-based compensation
Repurchase of common shares
from December 31, 2012 to December 31, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
from December 31, 2012 to September 30, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
from December 31, 2012 to June 30, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
From December 31, 2012 to March 31, 2013
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
from December 31, 2011 to December 31, 2012
Share-based compensation
Exercise of options and related tax benefit
Repurchase of common shares
from December 31, 2011 to September 30, 2012
Stock-based compensation—nonemployees
Exercise of options and related tax benefit
Repurchase of shares
from December 31, 2011 to June 30, 2012
Stock-based compensation - nonemployees
Exercise of options and related tax benefit
Repurchase of shares
from December 31, 2011 to March 31, 2012
Stock-based compensation - nonemployees
Exercise of options and related tax benefit
Repurchase of shares
from December 31, 2010 to December 31, 2011
Stock-based compensation – nonemployees
Repurchase of common shares
Exercise of options and related tax benefit
from December 31, 2010 to September 30, 2011
Stock-based compensation - nonemployees
Exercise of options and related tax benefit
Repurchase of shares
From Dec 31 2010 to Jun 30 2011
Exercise of options and related tax benefit
Repurchase of shares
Exercise of options and related tax benefit
Repurchase of shares
Issuance of common stock for services received
Repurchase of common shares
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price and statutory tax withholdings
Stock-based compensation — nonemployees
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price
Repurchase of shares
Stock-based compensation - nonemployees
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price
Repurchase of shares
Exercise of options and related tax benefit, net of mature shares redeemed for the exercise price
Repurchase of shares