股本结构
单位：万股
| 公告日期 | 2024-04-24 | 2024-03-28 | 2024-02-21 | 2024-02-21 | 2023-10-26 | 2023-10-25 |
|---|---|---|---|---|---|---|
| 证券总股本 | 13896.64 | 13898.15 | 13673.72 | 13677.49 | 13680.09 | 13677.21 |
| 普通股本 | 13896.64 | 13898.15 | 13673.72 | 13677.49 | 13680.09 | 13677.21 |
| 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 | 2024-03-31 | 2024-03-11 | 2024-02-14 | 2023-12-31 | 2023-10-20 | 2023-09-30 |
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 |
|---|---|---|---|---|
| 2024-04-24 | 13896.64 | 未披露 | 定期报告 | 2024-03-31 |
| 2024-03-28 | 13898.15 | 未披露 | 定期报告 | 2024-03-11 |
| 2024-02-21 | 13673.72 | 未披露 | 定期报告 | 2024-02-14 |
| 2024-02-21 | 13677.49 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Stock-based compensation
|
2023-12-31 |
| 2023-10-26 | 13680.09 | 未披露 | 定期报告 | 2023-10-20 |
| 2023-10-25 | 13677.21 | 未披露 | 定期报告 | 2023-09-30 |
| 2023-08-03 | 13679.37 | 未披露 | 定期报告 | 2023-07-28 |
| 2023-08-02 | 13680.28 | 未披露 | 定期报告 | 2023-06-30 |
| 2023-05-02 | 13674.24 | 未披露 | 定期报告 | 2023-04-25 |
| 2023-05-02 | 13674.94 | 未披露 | 定期报告 | 2023-03-31 |
| 2023-03-30 | 13675.34 | 未披露 | 定期报告 | 2023-03-01 |
| 2023-02-17 | 13470.40 | 未披露 | 定期报告 | 2023-02-10 |
| 2023-02-17 | 13470.37 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Stock-based compensation
|
2022-12-31 |
| 2022-10-27 | 13471.32 | 未披露 | 定期报告 | 2022-10-20 |
| 2022-10-27 | 13469.81 | 未披露 | 定期报告 | 2022-09-30 |
| 2022-07-28 | 13471.31 | 未披露 | 定期报告 | 2022-07-21 |
| 2022-07-27 | 13468.31 | 未披露 | 定期报告 | 2022-06-30 |
| 2022-04-28 | 13469.43 | 未披露 | 定期报告 | 2022-04-21 |
| 2022-04-27 | 13468.61 | 未披露 | 定期报告 | 2022-03-31 |
| 2022-03-31 | 13467.36 | 未披露 | 定期报告 | 2022-03-14 |
| 2022-02-18 | 13211.64 | 未披露 | 定期报告 | 2022-02-11 |
| 2022-02-17 | 13214.63 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Stock-based compensation
|
2021-12-31 |
| 2021-10-28 | 13210.79 | 未披露 | 定期报告 | 2021-10-22 |
| 2021-10-27 | 13204.11 | 未披露 | 定期报告 | 2021-09-30 |
| 2021-07-29 | 13207.81 | 未披露 | 定期报告 | 2021-07-23 |
| 2021-07-29 | 13212.51 | 未披露 | 定期报告 | 2021-06-30 |
| 2021-04-29 | 13213.95 | 未披露 | 定期报告 | 2021-04-23 |
| 2021-04-28 | 13214.79 | 未披露 | 定期报告 | 2021-03-31 |
| 2021-04-01 | 13219.17 | 未披露 | 定期报告 | 2021-03-01 |
| 2021-02-18 | 12961.50 | 未披露 | 定期报告 | 2021-02-12 |
| 2021-02-18 | 12961.21 | 未披露 |
更多>>
From December 31,2019 to December 31,2020
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Income tax payable increase from vesting of restricted shares
Section exchange
Stock-based compensation
|
2020-12-31 |
| 2020-10-27 | 11962.10 | 未披露 | 定期报告 | 2020-10-22 |
| 2020-10-27 | 11960.47 | 未披露 | 定期报告 | 2020-09-30 |
| 2020-07-29 | 11961.90 | 未披露 | 定期报告 | 2020-07-23 |
| 2020-07-28 | 11962.87 | 未披露 | 定期报告 | 2020-06-30 |
| 2020-04-29 | 11966.52 | 未披露 | 定期报告 | 2020-04-24 |
| 2020-04-29 | 11967.82 | 未披露 | 定期报告 | 2020-03-31 |
| 2020-04-02 | 11967.82 | 未披露 | 定期报告 | 2020-03-01 |
| 2020-02-20 | 11785.69 | 未披露 | 定期报告 | 2020-02-18 |
| 2020-02-20 | 11782.26 | 未披露 |
更多>>
From December 31, 2018 to December 31, 2019
Cancellation of restricted stock for tax withholdings on vested shares
Income tax payable increase from vesting of restricted shares
Stock-based compensation
|
2019-12-31 |
| 2019-10-30 | 11784.43 | 未披露 | 定期报告 | 2019-10-23 |
| 2019-10-30 | 11785.85 | 未披露 | 定期报告 | 2019-09-30 |
| 2019-08-06 | 11805.23 | 未披露 | 定期报告 | 2019-07-24 |
| 2019-08-06 | 11805.20 | 未披露 | 定期报告 | 2019-06-30 |
| 2019-05-01 | 11806.29 | 未披露 | 定期报告 | 2019-04-25 |
| 2019-05-01 | 11807.33 | 未披露 | 定期报告 | 2019-03-31 |
| 2019-04-04 | 11807.33 | 未披露 | 定期报告 | 2019-03-18 |
| 2019-03-12 | 11622.72 | 未披露 | 定期报告 | 2019-02-15 |
| 2019-02-21 | 11624.84 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Cancellation of restricted stock for tax withholdings on vested shares
Income tax payable increase from vesting of restricted shares
Stock-based compensation
|
2018-12-31 |
| 2018-10-30 | 11628.44 | 未披露 | 定期报告 | 2018-10-22 |
| 2018-10-29 | 11624.51 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-07-27 | 11625.37 | 未披露 | 定期报告 | 2018-07-23 |
| 2018-07-27 | 11626.17 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-02 | 11629.67 | 未披露 | 定期报告 | 2018-04-26 |
| 2018-05-02 | 11630.17 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-04-05 | 11631.91 | 未披露 | 定期报告 | 2018-03-19 |
| 2018-02-28 | 11462.71 | 未披露 | 定期报告 | 2018-02-27 |
| 2018-02-28 | 11465.10 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
|
2017-12-31 |
| 2017-11-02 | 11472.70 | 未披露 | 定期报告 | 2017-10-26 |
| 2017-11-01 | 11465.83 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-02 | 11475.87 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-02 | 11469.02 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-04-06 | 11468.62 | 未披露 | 定期报告 | 2017-03-20 |
| 2017-02-21 | 11384.93 | 未披露 | 定期报告 | 2017-02-15 |
| 2017-02-21 | 11387.66 | 未披露 |
更多>>
From December 31, 2015 to December 31, 2016
Cancellation of treasury stock
Cancellation of restricted stock for tax withholdings on vested shares
|
2016-12-31 |
| 2016-11-02 | 11369.21 | 未披露 | 定期报告 | 2016-10-27 |
| 2016-11-02 | 11363.31 | 未披露 |
更多>>
from December 31, 2015 to September 30, 2016
Cancellation of treasury stock
|
2016-09-30 |
| 2016-08-03 | 11363.70 | 未披露 | 定期报告 | 2016-07-28 |
| 2016-08-03 | 11364.40 | 未披露 |
更多>>
from December 31, 2015 to June 30, 2016
Cancellation of treasury stock
|
2016-06-30 |
| 2016-05-03 | 11375.42 | 未披露 | 定期报告 | 2016-04-28 |
| 2016-05-03 | 11375.62 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-04-07 | 11375.62 | 未披露 | 定期报告 | 2016-03-25 |
| 2016-02-17 | 11276.23 | 未披露 | 定期报告 | 2016-02-10 |
| 2016-02-17 | 11275.74 | 未披露 |
更多>>
From December 31, 2014 to December 31, 2015
Repurchases of common stock
Issuance of shares in exchange for HMA common stock
Issuance of common stock in connection with the exercise of stock options
Repurchase of restricted stock for tax withholdings on vested shares
Stock-based compensation
|
2015-12-31 |
| 2015-11-03 | 11818.80 | 未披露 | 定期报告 | 2015-10-27 |
| 2015-11-03 | 11818.31 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-04 | 11815.69 | 未披露 | 定期报告 | 2015-07-30 |
| 2015-08-03 | 11811.99 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-06 | 11803.41 | 未披露 | 定期报告 | 2015-04-29 |
| 2015-05-05 | 11802.48 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-04-03 | 11801.09 | 未披露 | 定期报告 | 2015-03-20 |
| 2015-02-25 | 11675.77 | 未披露 | 定期报告 | 2015-02-19 |
| 2015-02-25 | 11672.55 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Issuance of shares in exchange for HMA common stock
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
|
2014-12-31 |
| 2014-11-04 | 11633.18 | 未披露 | 定期报告 | 2014-10-28 |
| 2014-11-03 | 11628.20 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-01 | 11557.51 | 未披露 | 定期报告 | 2014-07-27 |
| 2014-07-31 | 11551.62 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-07 | 11526.62 | 未披露 | 定期报告 | 2014-05-01 |
| 2014-05-06 | 11526.09 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-04-04 | 11525.86 | 未披露 | 定期报告 | 2014-03-21 |
| 2014-02-26 | 11343.64 | 未披露 | 定期报告 | 2014-02-18 |
| 2014-02-26 | 9501.15 | 未披露 |
更多>>
From December 31,2012 to December 31,2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
|
2013-12-31 |
| 2013-10-31 | 9497.22 | 未披露 | 定期报告 | 2013-10-25 |
| 2013-10-31 | 9494.28 | 未披露 |
更多>>
from December 31, 2012 to September 30, 2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2013-09-30 |
| 2013-07-31 | 9481.15 | 未披露 | 定期报告 | 2013-07-23 |
| 2013-07-31 | 9479.95 | 未披露 |
更多>>
From December 31, 2012 to June 30, 2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2013-06-30 |
| 2013-04-30 | 9425.83 | 未披露 | 定期报告 | 2013-04-23 |
| 2013-04-30 | 9406.65 | 未披露 |
更多>>
From December 31, 2012 to March 31, 2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2013-03-31 |
| 2013-04-05 | 9394.11 | 未披露 | 定期报告 | 2013-03-22 |
| 2013-02-27 | 9216.30 | 未披露 | 定期报告 | 2013-02-20 |
| 2013-02-27 | 9195.02 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
|
2012-12-31 |
| 2012-11-01 | 9119.62 | 未披露 | 定期报告 | 2012-10-25 |
| 2012-11-01 | 9118.63 | 未披露 |
更多>>
From December 31, 2011 to September 30, 2012
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2012-09-30 |
| 2012-07-27 | 9096.32 | 未披露 | 定期报告 | 2012-07-19 |
| 2012-07-25 | 9094.19 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-04-27 | 9188.83 | 未披露 | 定期报告 | 2012-04-19 |
| 2012-04-26 | 9088.32 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-02-23 | 9154.61 | 未披露 | 定期报告 | 2012-02-15 |
| 2012-02-23 | 9057.15 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Repurchases of common stock
Share-based compensation
|
2011-12-31 |
| 2011-10-28 | 9155.40 | 未披露 | 定期报告 | 2011-10-20 |
| 2011-10-26 | 9077.84 | 未披露 | 定期报告 | 2011-09-30 |
| 2011-08-01 | 9321.28 | 未披露 | 定期报告 | 2011-07-22 |
| 2011-07-28 | 9223.49 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-04-29 | 9496.74 | 未披露 | 定期报告 | 2011-04-20 |
| 2011-04-29 | 9395.17 | 未披露 |
更多>>
from December 31, 2010 to March 31, 2011
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2011-03-31 |
| 2011-02-25 | 9275.25 | 未披露 | 定期报告 | 2011-02-17 |
| 2011-02-25 | 9266.93 | 未披露 |
更多>>
from dec 31 2009 to dec 31 2010
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Repurchases of common stock
Share-based compensation
|
2010-12-31 |
| 2010-10-29 | 9254.70 | 未披露 | 定期报告 | 2010-10-20 |
| 2010-10-29 | 9274.01 | 未披露 |
更多>>
from December 31, 2009 to September 30, 2010
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2010-09-30 |
| 2010-07-30 | 9439.42 | 未披露 | 定期报告 | 2010-07-22 |
| 2010-07-30 | 9556.52 | 未披露 |
更多>>
from December 31, 2009 to June 30, 2010
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2010-06-30 |
| 2010-04-28 | 9487.98 | 未披露 | 定期报告 | 2010-04-21 |
| 2010-04-28 | 9469.24 | 未披露 |
更多>>
from December 31, 2009 to March 31, 2010
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2010-03-31 |
| 2010-02-26 | 9311.07 | 未披露 | 定期报告 | 2010-02-17 |
| 2010-02-26 | 9303.80 | 未披露 |
更多>>
from December 31,2008 to December 31,2009
Issuance of common stock in connection with the exercise of options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2009-12-31 |
| 2009-02-27 | 9150.76 | 未披露 |
更多>>
from December 31,2007 to December 31,2008
Repurchases of common stock
Issuance of common stock in connection with the exercise of options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
|
2008-12-31 |
| 2008-02-29 | 9661.88 | 未披露 | 定期报告 | 2008-02-01 |
| 2008-02-29 | 9563.55 | 未披露 |
更多>>
from December 31,2006 to December 31,2007
Issuance of common stock in connection with the exercise of options
Share-based compensation
|
2007-12-31 |
| 2007-02-20 | 9406.71 | 未披露 | 定期报告 | 2007-02-01 |
| 2007-02-20 | 9405.09 | 未披露 |
更多>>
from December 31,2005 to December 31,2006
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock in connection with the conversion of convertible debt
Earned stock compensation
|
2006-12-31 |
| 2006-02-24 | 9748.68 | 未披露 | 定期报告 | 2006-02-15 |
| 2006-02-24 | 9356.43 | 未披露 |
更多>>
from December 31,2004 to December 31,2005
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock in connection with the conversion of convertible debt
Restricted stock grant
|
2005-12-31 |
| 2005-03-11 | 8767.75 | 未披露 | 定期报告 | 2005-02-22 |
| 2005-03-11 | 8761.62 | 未披露 |
更多>>
from December 31,2003 to December 31,2004
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
|
2004-12-31 |
| 2004-03-12 | 9874.19 | 未披露 | 定期报告 | 2004-02-20 |
| 2004-03-12 | 9868.20 | 未披露 |
更多>>
from December 31,2002 to December 31,2003
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
|
2003-12-31 |
| 2003-03-27 | 9832.00 | 未披露 | 定期报告 | 2003-03-10 |
| 2003-03-27 | 9881.15 | 未披露 |
更多>>
from December 31,2001 to December 31,2002
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
|
2002-12-31 |
| 2002-03-27 | 9847.90 | 未披露 | 定期报告 | 2002-03-15 |
| 2002-03-27 | 9846.94 | 未披露 |
更多>>
from December 31,2000 to December 31,2001
Issuance of common stock in connection with secondary public offering, net of issuance costs
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
Common stock purchased for treasury, at cost
|
2001-12-31 |
| 2001-03-29 | 8614.19 | 未披露 | 定期报告 | 2001-03-16 |
| 2001-03-29 | 8613.76 | 未披露 |
更多>>
from December 31,1999 to December 31,2000
Issuance of common stock in connection with initial public offering, net of issuance costs
Issuance of common stock in connection with secondary public offering, net of issuance costs
Issuance of common stock in connection with the exercise of options
|
2000-12-31 |
From December 31, 2022 to December 31, 2023
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Stock-based compensation
From December 31, 2021 to December 31, 2022
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Stock-based compensation
From December 31, 2020 to December 31, 2021
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Stock-based compensation
From December 31,2019 to December 31,2020
Cancellation of restricted stock for tax withholdings on vested shares
Issuance of common stock in connection with the exercise of stock options
Income tax payable increase from vesting of restricted shares
Section exchange
Stock-based compensation
From December 31, 2018 to December 31, 2019
Cancellation of restricted stock for tax withholdings on vested shares
Income tax payable increase from vesting of restricted shares
Stock-based compensation
from December 31, 2017 to December 31, 2018
Cancellation of restricted stock for tax withholdings on vested shares
Income tax payable increase from vesting of restricted shares
Stock-based compensation
from December 31, 2016 to December 31, 2017
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
From December 31, 2015 to December 31, 2016
Cancellation of treasury stock
Cancellation of restricted stock for tax withholdings on vested shares
from December 31, 2015 to September 30, 2016
Cancellation of treasury stock
from December 31, 2015 to June 30, 2016
Cancellation of treasury stock
From December 31, 2014 to December 31, 2015
Repurchases of common stock
Issuance of shares in exchange for HMA common stock
Issuance of common stock in connection with the exercise of stock options
Repurchase of restricted stock for tax withholdings on vested shares
Stock-based compensation
from December 31, 2013 to December 31, 2014
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Issuance of shares in exchange for HMA common stock
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
From December 31,2012 to December 31,2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
from December 31, 2012 to September 30, 2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
From December 31, 2012 to June 30, 2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
From December 31, 2012 to March 31, 2013
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31, 2011 to December 31, 2012
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Stock-based compensation
From December 31, 2011 to September 30, 2012
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31, 2010 to December 31, 2011
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Repurchases of common stock
Share-based compensation
from December 31, 2010 to March 31, 2011
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from dec 31 2009 to dec 31 2010
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Repurchases of common stock
Share-based compensation
from December 31, 2009 to September 30, 2010
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31, 2009 to June 30, 2010
Repurchases of common stock
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31, 2009 to March 31, 2010
Issuance of common stock in connection with the exercise of stock options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31,2008 to December 31,2009
Issuance of common stock in connection with the exercise of options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31,2007 to December 31,2008
Repurchases of common stock
Issuance of common stock in connection with the exercise of options
Cancellation of restricted stock for tax withholdings on vested shares
Share-based compensation
from December 31,2006 to December 31,2007
Issuance of common stock in connection with the exercise of options
Share-based compensation
from December 31,2005 to December 31,2006
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock in connection with the conversion of convertible debt
Earned stock compensation
from December 31,2004 to December 31,2005
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock in connection with the conversion of convertible debt
Restricted stock grant
from December 31,2003 to December 31,2004
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
from December 31,2002 to December 31,2003
Repurchase of common stock
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
from December 31,2001 to December 31,2002
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
from December 31,2000 to December 31,2001
Issuance of common stock in connection with secondary public offering, net of issuance costs
Issuance of common stock in connection with the exercise of options
Issuance of common stock to employee benefit plan
Common stock purchased for treasury, at cost
from December 31,1999 to December 31,2000
Issuance of common stock in connection with initial public offering, net of issuance costs
Issuance of common stock in connection with secondary public offering, net of issuance costs
Issuance of common stock in connection with the exercise of options