股本结构
单位：万股
| 公告日期 | 2025-10-30 | 2025-07-31 | 2025-04-25 | 2025-05-02 | 2025-02-28 | 2025-02-28 |
|---|---|---|---|---|---|---|
| 证券总股本 | 1843.59 | 1842.85 | 1841.11 | 1842.63 | 1843.61 | 1866.63 |
| 普通股本 | 1843.59 | 1842.85 | 1841.11 | 1842.63 | 1843.61 | 1866.63 |
| 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 | 2025-04-10 | 2025-03-31 | 2025-02-21 | 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 |
|---|---|---|---|---|
| 2025-10-30 | 1843.59 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Issuance of shares pursuant to vesting of restricted stock units
Payments for share repurchases
|
2025-09-30 |
| 2025-07-31 | 1842.85 | 未披露 | 定期报告 | 2025-06-30 |
| 2025-04-25 | 1841.11 | 未披露 | 定期报告 | 2025-04-10 |
| 2025-05-02 | 1842.63 | 未披露 |
更多>>
From January 1, 2025 to March 31, 2025
Issuance of shares pursuant to vesting of restricted stock units
Payments for share repurchases
|
2025-03-31 |
| 2025-02-28 | 1843.61 | 未披露 | 定期报告 | 2025-02-21 |
| 2025-02-28 | 1866.63 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
Net payments for stock buybacks
Exercise of stock options
|
2024-12-31 |
| 2024-11-01 | 1876.27 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Issuance of shares pursuant to vesting of restricted stock units
Payments for share repurchases
|
2024-09-30 |
| 2024-08-02 | 1875.70 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Payments for share repurchases
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
|
2024-06-30 |
| 2024-04-26 | 1873.66 | 未披露 | 定期报告 | 2024-04-10 |
| 2024-05-02 | 1875.48 | 未披露 |
更多>>
From January 1, 2024 to March 31, 2024
Payments for share repurchases
Issuance of shares pursuant to vesting of restricted stock units
Exercise of stock options
|
2024-03-31 |
| 2024-02-28 | 1871.54 | 未披露 | 定期报告 | 2024-02-23 |
| 2024-02-28 | 1884.55 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Net payments for stock buybacks
Exercise of stock options
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
|
2023-12-31 |
| 2023-11-03 | 1881.69 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
|
2023-09-30 |
| 2023-08-04 | 1881.47 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Exercise of stock options
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
|
2023-06-30 |
| 2023-05-10 | 1878.81 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Issuance of shares pursuant to vesting of restricted stock units
Exercise of stock options
Payments for stock buybacks
|
2023-03-31 |
| 2023-03-01 | 1873.22 | 未披露 | 定期报告 | 2023-02-24 |
| 2023-03-01 | 1888.31 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
Net payments for stock buybacks
Exercise of stock options
|
2022-12-31 |
| 2022-11-04 | 1884.39 | 未披露 | 定期报告 | 2022-10-28 |
| 2022-11-04 | 1883.37 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Exercise of stock options
Payments for stock buybacks
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
|
2022-09-30 |
| 2022-08-04 | 1881.86 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
Exercise of stock options
Payments for stock buybacks
|
2022-06-30 |
| 2022-05-05 | 1879.35 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2022-03-31 |
| 2022-02-25 | 1876.67 | 未披露 | 定期报告 | 2022-02-18 |
| 2022-02-25 | 1887.65 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2021-12-31 |
| 2021-11-03 | 1887.52 | 未披露 | 定期报告 | 2021-10-29 |
| 2021-11-03 | 1886.99 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2021-09-30 |
| 2021-08-04 | 1885.97 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2021-06-30 |
| 2021-05-05 | 1883.78 | 未披露 | 定期报告 | 2021-04-30 |
| 2021-05-05 | 1885.96 | 未披露 |
更多>>
From December 31, 2020 to March 31, 2021
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2021-03-31 |
| 2021-02-26 | 1887.49 | 未披露 | 定期报告 | 2021-02-19 |
| 2021-02-26 | 1891.00 | 未披露 |
更多>>
From December 31,2019 to December 31,2020
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2020-12-31 |
| 2020-11-06 | 1886.31 | 未披露 | 定期报告 | 2020-10-30 |
| 2020-11-06 | 1885.77 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2020-09-30 |
| 2020-08-05 | 1884.85 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Issuance of shares pursuant to vesting of restricted stock units
|
2020-06-30 |
| 2020-05-06 | 1882.73 | 未披露 |
更多>>
from December 31, 2019 to March 31, 2020
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2020-03-31 |
| 2020-02-28 | 1885.30 | 未披露 | 定期报告 | 2020-02-21 |
| 2020-02-28 | 1886.76 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2019-12-31 |
| 2019-11-07 | 1881.11 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2019-09-30 |
| 2019-08-02 | 1878.95 | 未披露 | 定期报告 | 2019-07-26 |
| 2019-08-02 | 1875.90 | 未披露 |
更多>>
from March 31, 2019 to June 30,2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2019-06-30 |
| 2019-05-03 | 1883.01 | 未披露 | 定期报告 | 2019-04-26 |
| 2019-04-19 | 1886.17 | 未披露 | 定期报告 | 2019-04-02 |
| 2019-05-03 | 1886.57 | 未披露 |
更多>>
from January 1, 2019 to March 31, 2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2019-03-31 |
| 2019-02-27 | 1881.42 | 未披露 | 定期报告 | 2019-02-22 |
| 2019-02-27 | 1881.75 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2018-12-31 |
| 2018-11-02 | 1884.73 | 未披露 | 定期报告 | 2018-10-26 |
| 2018-11-02 | 1886.84 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-03 | 1886.03 | 未披露 | 定期报告 | 2018-07-27 |
| 2018-08-03 | 1882.60 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-03 | 1880.67 | 未披露 | 定期报告 | 2018-04-27 |
| 2018-04-20 | 1879.52 | 未披露 | 定期报告 | 2018-04-10 |
| 2018-05-03 | 1876.71 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-02-28 | 1862.08 | 未披露 | 定期报告 | 2018-02-23 |
| 2018-02-28 | 1866.18 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2017-12-31 |
| 2017-11-03 | 1864.24 | 未披露 | 定期报告 | 2017-10-27 |
| 2017-11-03 | 1863.93 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-03 | 1873.48 | 未披露 | 定期报告 | 2017-07-28 |
| 2017-08-02 | 1871.77 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-04 | 1879.97 | 未披露 | 定期报告 | 2017-04-28 |
| 2017-04-21 | 1883.24 | 未披露 | 定期报告 | 2017-04-06 |
| 2017-05-04 | 1883.70 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-02-28 | 1901.74 | 未披露 | 定期报告 | 2017-02-24 |
| 2017-02-28 | 1902.13 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2016-12-31 |
| 2016-11-02 | 1895.76 | 未披露 | 定期报告 | 2016-10-28 |
| 2016-11-01 | 1896.33 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-03 | 1897.23 | 未披露 | 定期报告 | 2016-07-29 |
| 2016-08-02 | 1897.69 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-06 | 1901.32 | 未披露 | 定期报告 | 2016-04-29 |
| 2016-04-22 | 1901.86 | 未披露 | 定期报告 | 2016-04-06 |
| 2016-05-06 | 1902.42 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-08 | 1896.31 | 未披露 | 定期报告 | 2016-02-29 |
| 2016-03-08 | 1903.21 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2015-12-31 |
| 2015-10-30 | 1922.38 | 未披露 | 定期报告 | 2015-10-23 |
| 2015-10-29 | 1922.27 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-07-31 | 1937.03 | 未披露 | 定期报告 | 2015-07-24 |
| 2015-07-30 | 1940.00 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-08 | 1952.52 | 未披露 | 定期报告 | 2015-04-29 |
| 2015-04-24 | 1955.54 | 未披露 | 定期报告 | 2015-04-06 |
| 2015-05-07 | 1952.24 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-04-24 | 1953.92 | 未披露 | 定期报告 | 2015-03-19 |
| 2015-02-27 | 1943.58 | 未披露 | 定期报告 | 2015-02-20 |
| 2015-02-27 | 1943.02 | 未披露 |
更多>>
from December 31,2013 to December 31,2014
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2014-12-31 |
| 2014-11-07 | 1939.87 | 未披露 | 定期报告 | 2014-10-31 |
| 2014-11-06 | 1939.77 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-07 | 1947.05 | 未披露 | 定期报告 | 2014-07-31 |
| 2014-08-06 | 1952.30 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-08 | 1994.34 | 未披露 | 定期报告 | 2014-04-30 |
| 2014-04-25 | 1997.27 | 未披露 | 定期报告 | 2014-04-07 |
| 2014-05-07 | 1993.71 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-02-28 | 1977.27 | 未披露 | 定期报告 | 2014-02-21 |
| 2014-02-28 | 1976.46 | 未披露 |
更多>>
from December 31,2012 to December 31,2013
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2013-12-31 |
| 2013-11-06 | 1989.12 | 未披露 | 定期报告 | 2013-11-01 |
| 2013-11-05 | 1986.95 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-08-02 | 1976.86 | 未披露 | 定期报告 | 2013-07-26 |
| 2013-08-01 | 1976.20 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-04-26 | 1971.82 | 未披露 | 定期报告 | 2013-04-08 |
| 2013-05-06 | 1966.53 | 未披露 | 定期报告 | 2013-03-31 |
| 2013-03-01 | 1956.86 | 未披露 | 定期报告 | 2013-02-22 |
| 2013-03-01 | 1955.94 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
|
2012-12-31 |
| 2012-11-05 | 1952.95 | 未披露 | 定期报告 | 2012-10-31 |
| 2012-11-02 | 1952.80 | 未披露 | 定期报告 | 2012-09-30 |
| 2012-08-06 | 1972.57 | 未披露 | 定期报告 | 2012-07-31 |
| 2012-08-02 | 1972.35 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-05-04 | 1991.17 | 未披露 | 定期报告 | 2012-04-30 |
| 2012-05-04 | 1985.29 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-03-02 | 1980.03 | 未披露 | 定期报告 | 2012-02-27 |
| 2012-03-02 | 1979.25 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stockholder issuances and buybacks
|
2011-12-31 |
| 2011-11-03 | 1976.61 | 未披露 | 定期报告 | 2011-10-31 |
| 2011-11-03 | 1976.46 | 未披露 | 定期报告 | 2011-09-30 |
| 2011-08-03 | 1976.03 | 未披露 | 定期报告 | 2011-07-31 |
| 2011-08-01 | 1975.90 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-05-06 | 1966.26 | 未披露 | 定期报告 | 2011-05-02 |
| 2011-05-06 | 1965.20 | 未披露 | 定期报告 | 2011-03-31 |
| 2011-03-04 | 1957.60 | 未披露 | 定期报告 | 2011-03-01 |
| 2011-03-04 | 1956.76 | 未披露 |
更多>>
from December 31, 2009 to December 31, 2010
Exercise of stock options
Issuance of shares pursuant to vesting of Restricted Stock Units
Net payments for stockholder issuances and buybacks
|
2010-12-31 |
| 2010-11-05 | 1944.07 | 未披露 | 定期报告 | 2010-11-01 |
| 2010-11-05 | 1942.99 | 未披露 | 定期报告 | 2010-09-30 |
| 2010-08-06 | 1940.37 | 未披露 | 定期报告 | 2010-08-02 |
| 2010-08-06 | 1940.03 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-03-11 | 1928.56 | 未披露 | 定期报告 | 2010-03-01 |
| 2010-03-11 | 1927.86 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Issuance of shares pursuant to secondary offering
Exercise of stock options
Issuance of shares pursuant to vesting of Restricted Stock Units
Net payments for stockholder issuances and buybacks
|
2009-12-31 |
| 2009-03-13 | 1514.84 | 未披露 | 定期报告 | 2009-03-01 |
| 2009-03-13 | 1510.65 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Exercise of stock options
Issuance of shares pursuant to vesting of Restricted Stock Units
Net payments for stockholder issuances and buybacks
|
2008-12-31 |
| 2008-03-17 | 1458.93 | 未披露 | 定期报告 | 2008-03-01 |
| 2008-03-17 | 1453.15 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Exercise of stock options
Net payments from management stockholder issuances and buybacks
|
2007-12-31 |
| 2007-03-30 | 1388.18 | 未披露 | 定期报告 | 2007-03-15 |
| 2007-03-30 | 1387.47 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Proceeds from initial public offering
Exercise of stock options/warrants
Net payments from management stockholder issuances and buybacks
|
2006-12-31 |
From June 30, 2025 to September 30, 2025
Issuance of shares pursuant to vesting of restricted stock units
Payments for share repurchases
From January 1, 2025 to March 31, 2025
Issuance of shares pursuant to vesting of restricted stock units
Payments for share repurchases
From December 31, 2023 to December 31, 2024
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
Net payments for stock buybacks
Exercise of stock options
From June 30, 2024 to September 30, 2024
Issuance of shares pursuant to vesting of restricted stock units
Payments for share repurchases
From March 31, 2024 to June 30, 2024
Payments for share repurchases
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
From January 1, 2024 to March 31, 2024
Payments for share repurchases
Issuance of shares pursuant to vesting of restricted stock units
Exercise of stock options
From December 31, 2022 to December 31, 2023
Net payments for stock buybacks
Exercise of stock options
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
From June 30, 2023 to September 30, 2023
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
From March 31, 2023 to June 30, 2023
Exercise of stock options
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
From December 31, 2022 to March 31, 2023
Issuance of shares pursuant to vesting of restricted stock units
Exercise of stock options
Payments for stock buybacks
From December 31, 2021 to December 31, 2022
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
Net payments for stock buybacks
Exercise of stock options
From June 30, 2022 to September 30, 2022
Exercise of stock options
Payments for stock buybacks
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
From March 31, 2022 to June 30, 2022
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units
Exercise of stock options
Payments for stock buybacks
From December 31, 2021 to March 31, 2022
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From December 31, 2020 to December 31, 2021
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From June 30, 2021 to September 30, 2021
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From March 31, 2021 to June 30, 2021
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From December 31, 2020 to March 31, 2021
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From December 31,2019 to December 31,2020
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From June 30, 2020 to September 30, 2020
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
From March 31, 2020 to June 30, 2020
Issuance of shares pursuant to vesting of restricted stock units
from December 31, 2019 to March 31, 2020
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2018 to December 31, 2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from June 30, 2019 to September 30, 2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from March 31, 2019 to June 30,2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from January 1, 2019 to March 31, 2019
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2017 to December 31, 2018
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2016 to December 31, 2017
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2015 to December 31, 2016
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2014 to December 31, 2015
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31,2013 to December 31,2014
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31,2012 to December 31,2013
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2011 to December 31, 2012
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stock issuances and buybacks
from December 31, 2010 to December 31, 2011
Exercise of stock options
Issuance of shares pursuant to vesting of restricted stock units
Net payments for stockholder issuances and buybacks
from December 31, 2009 to December 31, 2010
Exercise of stock options
Issuance of shares pursuant to vesting of Restricted Stock Units
Net payments for stockholder issuances and buybacks
from December 31, 2008 to December 31, 2009
Issuance of shares pursuant to secondary offering
Exercise of stock options
Issuance of shares pursuant to vesting of Restricted Stock Units
Net payments for stockholder issuances and buybacks
from December 31, 2007 to December 31, 2008
Exercise of stock options
Issuance of shares pursuant to vesting of Restricted Stock Units
Net payments for stockholder issuances and buybacks
from December 31, 2006 to December 31, 2007
Exercise of stock options
Net payments from management stockholder issuances and buybacks
from December 31, 2005 to December 31, 2006
Proceeds from initial public offering
Exercise of stock options/warrants
Net payments from management stockholder issuances and buybacks