股本结构
单位：万股
| 公告日期 | 2025-10-30 | 2025-10-30 | 2025-07-31 | 2025-07-31 | 2025-04-30 | 2025-04-30 |
|---|---|---|---|---|---|---|
| 证券总股本 | 1103.15 | 1104.14 | 1123.77 | 1123.74 | 1160.35 | 1174.79 |
| 普通股本 | 1103.15 | 1104.14 | 1123.77 | 1123.74 | 1160.35 | 1174.79 |
| 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 | 2025-10-23 | 2025-09-30 | 2025-07-24 | 2025-06-30 | 2025-04-23 | 2025-03-31 |
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 |
|---|---|---|---|---|
| 2025-10-30 | 1103.15 | 未披露 | 定期报告 | 2025-10-23 |
| 2025-10-30 | 1104.14 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
|
2025-09-30 |
| 2025-07-31 | 1123.77 | 未披露 | 定期报告 | 2025-07-24 |
| 2025-07-31 | 1123.74 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
|
2025-06-30 |
| 2025-04-30 | 1160.35 | 未披露 | 定期报告 | 2025-04-23 |
| 2025-04-30 | 1174.79 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
|
2025-03-31 |
| 2025-02-12 | 1203.16 | 未披露 | 定期报告 | 2025-02-04 |
| 2025-02-12 | 1204.82 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
|
2024-12-31 |
| 2024-10-30 | 1211.21 | 未披露 | 定期报告 | 2024-10-23 |
| 2024-10-30 | 1211.16 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Repurchase of common stock
Restricted stock units settled in common stock
|
2024-09-30 |
| 2024-07-31 | 1211.12 | 未披露 | 定期报告 | 2024-07-24 |
| 2024-07-31 | 1211.11 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Repurchase of common stock
Restricted stock units settled in common stock
|
2024-06-30 |
| 2024-04-30 | 1211.10 | 未披露 | 定期报告 | 2024-04-23 |
| 2024-04-30 | 1222.06 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
|
2024-03-31 |
| 2024-02-12 | 1230.30 | 未披露 | 定期报告 | 2024-02-01 |
| 2024-02-12 | 1252.24 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
|
2023-12-31 |
| 2023-10-30 | 1256.67 | 未披露 | 定期报告 | 2023-10-23 |
| 2023-10-30 | 1256.62 | 未披露 |
更多>>
From June 30,2023 to September 30,2023
Repurchase of common stock
Stock options exercised
|
2023-09-30 |
| 2023-08-01 | 1282.22 | 未披露 | 定期报告 | 2023-07-25 |
| 2023-08-01 | 1282.17 | 未披露 |
更多>>
From March 31, 2023 to June 30,2023
Repurchase of common stock
Restricted stock units converted to common stock
|
2023-06-30 |
| 2023-05-01 | 1283.75 | 未披露 | 定期报告 | 2023-04-24 |
| 2023-05-01 | 1283.69 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Stock options exercised
Repurchase of common stock
Restricted stock units converted to common stock
|
2023-03-31 |
| 2023-02-10 | 1283.34 | 未披露 | 定期报告 | 2023-02-03 |
| 2023-02-10 | 1275.69 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Restricted stock units converted to common stock
Repurchase of common stock
Stock options exercised
|
2022-12-31 |
| 2022-11-01 | 1292.47 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Repurchase of common stock
Stock options exercised
|
2022-09-30 |
| 2022-08-01 | 1292.17 | 未披露 | 定期报告 | 2022-07-25 |
| 2022-08-01 | 1297.55 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Repurchase of common stock
Stock options exercised
|
2022-06-30 |
| 2022-05-02 | 1313.96 | 未披露 | 定期报告 | 2022-04-25 |
| 2022-05-02 | 1336.38 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
|
2022-03-31 |
| 2022-02-11 | 1411.44 | 未披露 | 定期报告 | 2022-02-03 |
| 2022-02-11 | 1414.59 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
|
2021-12-31 |
| 2021-11-01 | 1453.96 | 未披露 | 定期报告 | 2021-10-25 |
| 2021-11-01 | 1471.70 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Restricted stock forfeitures
Repurchase of common stock
|
2021-09-30 |
| 2021-07-29 | 1567.23 | 未披露 | 定期报告 | 2021-07-22 |
| 2021-07-29 | 1600.32 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Restricted stock forfeitures
Repurchase of common stock
|
2021-06-30 |
| 2021-06-10 | 1639.68 | 未披露 | 定期报告 | 2021-05-27 |
| 2021-04-29 | 1671.04 | 未披露 |
更多>>
from December 31, 2020 to March 31, 2021
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2021-03-31 |
| 2021-02-12 | 1681.89 | 未披露 | 定期报告 | 2021-02-04 |
| 2021-02-12 | 1709.24 | 未披露 |
更多>>
from December 31, 2019 to December 31, 2020
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2020-12-31 |
| 2020-10-29 | 1764.94 | 未披露 | 定期报告 | 2020-10-22 |
| 2020-10-29 | 1764.94 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Restricted stock awards,net of forfeitures
|
2020-09-30 |
| 2020-07-31 | 1764.95 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Restricted stock awards, net of forfeitures
|
2020-06-30 |
| 2020-05-27 | 1764.95 | 未披露 |
更多>>
from December 31, 2019 to March 31, 2020
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2020-03-31 |
| 2020-02-11 | 1815.11 | 未披露 | 定期报告 | 2020-02-04 |
| 2020-02-11 | 1835.28 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2019-12-31 |
| 2019-11-01 | 1879.68 | 未披露 | 定期报告 | 2019-10-22 |
| 2019-11-01 | 1879.68 | 未披露 |
更多>>
from June 30,2019 to September 30, 2019
Restricted stock awards, net of forfeitures
|
2019-09-30 |
| 2019-07-30 | 1879.68 | 未披露 | 定期报告 | 2019-07-23 |
| 2019-07-30 | 1879.69 | 未披露 |
更多>>
from March 31, 2019 to June 30,2019
Restricted stock awards, net of forfeitures
|
2019-06-30 |
| 2019-04-29 | 1879.70 | 未披露 | 定期报告 | 2019-04-22 |
| 2019-04-29 | 1879.71 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2019-03-31 |
| 2019-02-08 | 1878.03 | 未披露 | 定期报告 | 2019-02-01 |
| 2019-02-08 | 1897.26 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2018-12-31 |
| 2018-10-29 | 1930.95 | 未披露 | 定期报告 | 2018-10-22 |
| 2018-10-29 | 1930.96 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-07-31 | 1930.96 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-04-26 | 1930.98 | 未披露 | 定期报告 | 2018-04-12 |
| 2018-05-03 | 1930.99 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-02-09 | 1931.00 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2017-12-31 |
| 2017-10-30 | 1931.02 | 未披露 | 定期报告 | 2017-10-23 |
| 2017-10-30 | 1931.02 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-07-31 | 1931.03 | 未披露 | 定期报告 | 2017-07-24 |
| 2017-07-31 | 1931.03 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-01 | 1939.22 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-02-10 | 1987.79 | 未披露 | 定期报告 | 2017-02-03 |
| 2017-02-10 | 1987.74 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2016-12-31 |
| 2016-11-01 | 2032.83 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-07-29 | 2032.83 | 未披露 | 定期报告 | 2016-07-22 |
| 2016-07-29 | 2032.84 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-02 | 2032.85 | 未披露 | 定期报告 | 2016-04-25 |
| 2016-05-02 | 2032.85 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-02-12 | 2013.29 | 未披露 | 定期报告 | 2016-02-05 |
| 2016-02-12 | 2013.30 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
|
2015-12-31 |
| 2015-11-06 | 2059.70 | 未披露 | 定期报告 | 2015-10-30 |
| 2015-10-29 | 2059.72 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-07-29 | 2059.75 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-04-29 | 2059.76 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-04-02 | 2059.76 | 未披露 | 定期报告 | 2015-03-19 |
| 2015-02-12 | 2059.74 | 未披露 | 定期报告 | 2015-02-05 |
| 2015-02-12 | 2059.77 | 未披露 |
更多>>
From December 31, 2013 to December 31, 2014
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
|
2014-12-31 |
| 2014-10-29 | 2059.79 | 未披露 | 定期报告 | 2014-10-20 |
| 2014-10-29 | 2159.36 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-07-30 | 2159.36 | 未披露 | 定期报告 | 2014-07-18 |
| 2014-07-30 | 2159.38 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-04-29 | 2250.97 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-04-03 | 2314.71 | 未披露 | 定期报告 | 2014-03-20 |
| 2014-02-14 | 2294.72 | 未披露 | 定期报告 | 2014-02-07 |
| 2014-02-14 | 2294.31 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
|
2013-12-31 |
| 2013-10-30 | 2296.52 | 未披露 | 定期报告 | 2013-10-18 |
| 2013-10-30 | 2301.34 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-07-30 | 2328.07 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-04-04 | 2358.75 | 未披露 | 定期报告 | 2013-03-21 |
| 2013-02-20 | 2395.00 | 未披露 | 定期报告 | 2013-02-15 |
| 2013-02-20 | 2411.49 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
|
2012-12-31 |
| 2012-11-01 | 2455.12 | 未披露 | 定期报告 | 2012-10-19 |
| 2012-11-01 | 2455.10 | 未披露 | 定期报告 | 2012-09-30 |
| 2012-08-02 | 2454.15 | 未披露 | 定期报告 | 2012-07-20 |
| 2012-08-02 | 2454.20 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-05-02 | 2562.77 | 未披露 | 定期报告 | 2012-04-20 |
| 2012-05-02 | 2562.80 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-02-24 | 2562.25 | 未披露 | 定期报告 | 2012-02-15 |
| 2012-02-24 | 2562.40 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
|
2011-12-31 |
| 2011-11-01 | 2566.64 | 未披露 | 定期报告 | 2011-10-21 |
| 2011-11-01 | 2566.70 | 未披露 | 定期报告 | 2011-09-30 |
| 2011-08-01 | 2565.68 | 未披露 | 定期报告 | 2011-07-22 |
| 2011-08-01 | 2564.00 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-05-02 | 2559.13 | 未披露 | 定期报告 | 2011-04-22 |
| 2011-05-02 | 2558.40 | 未披露 | 定期报告 | 2011-03-31 |
| 2011-02-24 | 2742.08 | 未披露 | 定期报告 | 2011-02-17 |
| 2011-02-24 | 2730.40 | 未披露 |
更多>>
from December 31, 2009 to December 31, 2010
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
|
2010-12-31 |
| 2010-11-01 | 2714.14 | 未披露 | 定期报告 | 2010-10-22 |
| 2010-11-01 | 2714.16 | 未披露 | 定期报告 | 2010-09-30 |
| 2010-08-03 | 2712.51 | 未披露 | 定期报告 | 2010-07-30 |
| 2010-08-03 | 3102.40 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-03-03 | 3129.48 | 未披露 | 定期报告 | 2010-02-19 |
| 2010-03-03 | 3115.82 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
|
2009-12-31 |
| 2009-02-27 | 3074.70 | 未披露 | 定期报告 | 2009-02-20 |
| 2009-02-27 | 3066.67 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Stock-based compensation
Issuance of restricted stock, net of forfeitures
Repurchase of common stock
Forfeiture of restricted stock
Stock options exercised
|
2008-12-31 |
| 2008-03-14 | 3037.81 | 未披露 | 定期报告 | 2008-02-29 |
| 2008-03-14 | 3024.09 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Issuance of restricted stock, net of forfeitures
Repurchase of common stock
Stock options exercised
|
2007-12-31 |
| 2007-03-02 | 3025.02 | 未披露 | 定期报告 | 2007-02-28 |
| 2007-03-02 | 3018.00 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Issuance of restricted stock, net of forfeitures
Repurchase of common stock
Stock options exercised
|
2006-12-31 |
| 2006-03-10 | 3708.77 | 未披露 | 定期报告 | 2006-02-28 |
| 2006-03-10 | 3702.73 | 未披露 |
更多>>
from December 31, 2004 to December 31, 2005
Issuance of restricted stock, net of forfeitures
Stock options exercised
|
2005-12-31 |
| 2006-01-30 | 3689.72 | 未披露 |
更多>>
from December 31, 2003 to December 31, 2004
Repurchase and retirement of common stock
Stock options exercised
|
2004-12-31 |
| 2004-03-15 | 3966.37 | 未披露 | 定期报告 | 2004-01-31 |
| 2004-03-15 | 4212.81 | 未披露 |
更多>>
from December 31, 2002 to December 31, 2003
Repurchase and retirement of common stock
Stock options exercised
|
2003-12-31 |
| 2003-03-31 | 4233.16 | 未披露 | 定期报告 | 2003-02-28 |
| 2003-03-31 | 4232.56 | 未披露 |
更多>>
from December 31, 2001 to December 31, 2002
Repurchase and retirement of common stock
|
2002-12-31 |
| 2002-03-28 | 4264.97 | 未披露 | 定期报告 | 2002-02-28 |
| 2002-03-28 | 4216.26 | 未披露 |
更多>>
from December 31, 2000 to December 31, 2001
Repurchase and retirement of common stock
|
2001-12-31 |
| 2001-04-02 | 4231.98 | 未披露 | 定期报告 | 2001-03-16 |
| 2001-04-02 | 4247.87 | 未披露 |
更多>>
from December 31, 1999 to December 31, 2000
Repurchase and retirement of common stock
|
2000-12-31 |
| 2000-03-30 | 4491.67 | 未披露 | 定期报告 | 2000-03-22 |
| 2000-03-30 | 4607.15 | 未披露 |
更多>>
from December 31, 1998 to December 31, 1999
Repurchase and retirement of common stock
Stock options exercised
|
1999-12-31 |
| 1999-03-31 | 4629.89 | 未披露 | 定期报告 | 1999-03-24 |
| 1999-03-31 | 4629.15 | 未披露 |
更多>>
from December 31, 1997 to December 31, 1998
Stock options exercised
|
1998-12-31 |
| 1998-03-23 | 4611.31 | 未披露 |
更多>>
from December 31, 1996 to December 31, 1997
Stock options exercised
|
1997-12-31 |
| 1997-03-31 | 4607.64 | 未披露 | 定期报告 | 1997-03-27 |
| 1997-03-31 | 4584.30 | 未披露 |
更多>>
from December 31, 1995 to December 31, 1996
Stock options exercised
Issuance of 200,000 common shares for acquisition of subsidiary
|
1996-12-31 |
| 1997-03-31 | 4550.50 | 未披露 |
更多>>
from December 31, 1994 to December 31, 1995
Proceeds from common stock offering, net of stock issuance cost of $576
Stock options exercised
|
1995-12-31 |
From June 30, 2025 to September 30, 2025
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
From March 31, 2025 to June 30, 2025
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
From December 31, 2024 to March 31, 2025
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
From December 31, 2023 to December 31, 2024
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
From June 30, 2024 to September 30, 2024
Repurchase of common stock
Restricted stock units settled in common stock
From March 31, 2024 to June 30, 2024
Repurchase of common stock
Restricted stock units settled in common stock
From December 31, 2023 to March 31, 2024
Repurchase of common stock
Restricted stock units settled in common stock
Stock options exercised
From December 31, 2022 to December 31, 2023
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
From June 30,2023 to September 30,2023
Repurchase of common stock
Stock options exercised
From March 31, 2023 to June 30,2023
Repurchase of common stock
Restricted stock units converted to common stock
From December 31, 2022 to March 31, 2023
Stock options exercised
Repurchase of common stock
Restricted stock units converted to common stock
From December 31, 2021 to December 31, 2022
Restricted stock units converted to common stock
Repurchase of common stock
Stock options exercised
From June 30, 2022 to September 30, 2022
Repurchase of common stock
Stock options exercised
From March 31, 2022 to June 30, 2022
Repurchase of common stock
Stock options exercised
From December 31, 2021 to March 31, 2022
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
From December 31, 2020 to December 31, 2021
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
From June 30, 2021 to September 30, 2021
Restricted stock forfeitures
Repurchase of common stock
From March 31, 2021 to June 30, 2021
Restricted stock forfeitures
Repurchase of common stock
from December 31, 2020 to March 31, 2021
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from December 31, 2019 to December 31, 2020
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
From June 30, 2020 to September 30, 2020
Restricted stock awards,net of forfeitures
From March 31, 2020 to June 30, 2020
Restricted stock awards, net of forfeitures
from December 31, 2019 to March 31, 2020
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from December 31, 2018 to December 31, 2019
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from June 30,2019 to September 30, 2019
Restricted stock awards, net of forfeitures
from March 31, 2019 to June 30,2019
Restricted stock awards, net of forfeitures
from December 31, 2018 to March 31, 2019
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from December 31, 2017 to December 31, 2018
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from December 31, 2016 to December 31, 2017
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from December 31, 2015 to December 31, 2016
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
from December 31, 2014 to December 31, 2015
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
From December 31, 2013 to December 31, 2014
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
from December 31, 2012 to December 31, 2013
Restricted stock awards, net of forfeitures
Repurchase of common stock
Restricted stock units converted to common stock
Stock options exercised
from December 31, 2011 to December 31, 2012
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
from December 31, 2010 to December 31, 2011
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
from December 31, 2009 to December 31, 2010
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
from December 31, 2008 to December 31, 2009
Restricted stock awards, net of forfeitures
Repurchase of common stock
Stock options exercised
from December 31, 2007 to December 31, 2008
Stock-based compensation
Issuance of restricted stock, net of forfeitures
Repurchase of common stock
Forfeiture of restricted stock
Stock options exercised
from December 31, 2006 to December 31, 2007
Issuance of restricted stock, net of forfeitures
Repurchase of common stock
Stock options exercised
from December 31, 2005 to December 31, 2006
Issuance of restricted stock, net of forfeitures
Repurchase of common stock
Stock options exercised
from December 31, 2004 to December 31, 2005
Issuance of restricted stock, net of forfeitures
Stock options exercised
from December 31, 2003 to December 31, 2004
Repurchase and retirement of common stock
Stock options exercised
from December 31, 2002 to December 31, 2003
Repurchase and retirement of common stock
Stock options exercised
from December 31, 2001 to December 31, 2002
Repurchase and retirement of common stock
from December 31, 2000 to December 31, 2001
Repurchase and retirement of common stock
from December 31, 1999 to December 31, 2000
Repurchase and retirement of common stock
from December 31, 1998 to December 31, 1999
Repurchase and retirement of common stock
Stock options exercised
from December 31, 1997 to December 31, 1998
Stock options exercised
from December 31, 1996 to December 31, 1997
Stock options exercised
from December 31, 1995 to December 31, 1996
Stock options exercised
Issuance of 200,000 common shares for acquisition of subsidiary
from December 31, 1994 to December 31, 1995
Proceeds from common stock offering, net of stock issuance cost of $576
Stock options exercised