股本结构
单位：万股
| 公告日期 | 2025-11-05 | 2025-08-06 | 2025-08-06 | 2025-05-07 | 2025-05-07 | 2025-04-08 |
|---|---|---|---|---|---|---|
| 证券总股本 | 2551.43 | 2549.20 | 2549.10 | 2545.09 | 2544.65 | 2539.31 |
| 普通股本 | 2551.43 | 2549.20 | 2549.10 | 2545.09 | 2544.65 | 2539.31 |
| 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 | 2025-08-04 | 2025-06-30 | 2025-05-01 | 2025-03-31 | 2025-03-24 |
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 |
|---|---|---|---|---|
| 2025-11-05 | 2551.43 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Stock based compensation
|
2025-09-30 |
| 2025-08-06 | 2549.20 | 未披露 | 定期报告 | 2025-08-04 |
| 2025-08-06 | 2549.10 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Stock based compensation
|
2025-06-30 |
| 2025-05-07 | 2545.09 | 未披露 | 定期报告 | 2025-05-01 |
| 2025-05-07 | 2544.65 | 未披露 | 定期报告 | 2025-03-31 |
| 2025-04-08 | 2539.31 | 未披露 | 定期报告 | 2025-03-24 |
| 2025-02-26 | 2538.15 | 未披露 | 定期报告 | 2025-02-18 |
| 2025-02-26 | 2537.83 | 未披露 |
更多>>
From December 31,2023 to December 31,2024
Stock based compensation
|
2024-12-31 |
| 2024-11-06 | 2534.21 | 未披露 | 定期报告 | 2024-11-01 |
| 2024-11-06 | 2534.12 | 未披露 |
更多>>
From June 30,2024 to September 30,2024
Stock based compensation
|
2024-09-30 |
| 2024-08-07 | 2533.61 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Stock based compensation
|
2024-06-30 |
| 2024-05-08 | 2529.59 | 未披露 | 定期报告 | 2024-05-01 |
| 2024-05-08 | 2529.32 | 未披露 |
更多>>
From January 1, 2024 to March 31, 2024
Stock based compensation
|
2024-03-31 |
| 2024-04-02 | 2528.62 | 未披露 | 定期报告 | 2024-03-18 |
| 2024-02-29 | 2527.73 | 未披露 | 定期报告 | 2024-02-23 |
| 2024-02-29 | 2526.98 | 未披露 |
更多>>
From January 1, 2023 to December 31,2023
Stock based compensation
|
2023-12-31 |
| 2023-11-02 | 2526.54 | 未披露 | 定期报告 | 2023-11-01 |
| 2023-11-02 | 2526.37 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Stock based compensation
|
2023-09-30 |
| 2023-08-08 | 2526.46 | 未披露 | 定期报告 | 2023-08-01 |
| 2023-08-08 | 2526.29 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Stock based compensation
|
2023-06-30 |
| 2023-05-09 | 2523.73 | 未披露 | 定期报告 | 2023-05-02 |
| 2023-04-04 | 2523.16 | 未披露 | 定期报告 | 2023-03-20 |
| 2023-02-28 | 2521.63 | 未披露 | 定期报告 | 2023-02-23 |
| 2023-02-28 | 2521.05 | 未披露 |
更多>>
From January 1, 2022 to December 31, 2022
Stock based compensation
|
2022-12-31 |
| 2022-11-03 | 2519.74 | 未披露 | 定期报告 | 2022-11-01 |
| 2022-11-03 | 2519.14 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Stock based compensation
|
2022-09-30 |
| 2022-08-04 | 2518.83 | 未披露 | 定期报告 | 2022-08-01 |
| 2022-08-04 | 2518.66 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Stock based compensation
|
2022-06-30 |
| 2022-05-05 | 2512.66 | 未披露 | 定期报告 | 2022-05-02 |
| 2022-04-05 | 2511.92 | 未披露 | 定期报告 | 2022-03-21 |
| 2022-02-25 | 2509.72 | 未披露 | 定期报告 | 2022-02-23 |
| 2022-02-25 | 2508.21 | 未披露 |
更多>>
From January 1, 2021 to December 31, 2021
Shares repurchased
Stock based compensation
|
2021-12-31 |
| 2021-11-04 | 2508.09 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Shares repurchased
|
2021-09-30 |
| 2021-08-04 | 2511.73 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Shares repurchased
Stock based compensation
|
2021-06-30 |
| 2021-05-05 | 2511.99 | 未披露 |
更多>>
from January 1, 2021 to March 31, 2021
Shares repurchased
Stock based compensation
|
2021-03-31 |
| 2021-04-06 | 2511.97 | 未披露 | 定期报告 | 2021-03-22 |
| 2021-02-26 | 2508.73 | 未披露 | 定期报告 | 2021-02-24 |
| 2021-02-26 | 2505.55 | 未披露 |
更多>>
From January 1, 2020 to December 31, 2020
Shares repurchased
Stock based compensation
|
2020-12-31 |
| 2020-08-05 | 2503.12 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Stock based compensation
|
2020-06-30 |
| 2020-05-06 | 2501.61 | 未披露 |
更多>>
From January 1, 2020 to March 31, 2020
Shares repurchased
Stock based compensation
|
2020-03-31 |
| 2020-04-07 | 2498.22 | 未披露 | 定期报告 | 2020-03-23 |
| 2020-02-28 | 2505.12 | 未披露 | 定期报告 | 2020-02-26 |
| 2020-02-28 | 2501.60 | 未披露 |
更多>>
From December 31, 2018 to December 31, 2019
Shares repurchased
Stock based compensation
|
2019-12-31 |
| 2019-11-06 | 2503.17 | 未披露 | 定期报告 | 2019-11-04 |
| 2019-11-06 | 2508.17 | 未披露 |
更多>>
From June 30, 2019 to September 30, 2019
Shares repurchased
Stock based compensation
|
2019-09-30 |
| 2019-08-07 | 2525.74 | 未披露 | 定期报告 | 2019-08-05 |
| 2019-08-07 | 2524.52 | 未披露 | 定期报告 | 2019-06-30 |
| 2019-05-08 | 2520.27 | 未披露 | 定期报告 | 2019-05-06 |
| 2019-05-08 | 2516.78 | 未披露 | 定期报告 | 2019-03-31 |
| 2019-04-02 | 2516.64 | 未披露 | 定期报告 | 2019-03-18 |
| 2019-02-28 | 2511.23 | 未披露 | 定期报告 | 2019-02-26 |
| 2019-02-28 | 2509.74 | 未披露 | 定期报告 | 2018-12-31 |
| 2018-11-07 | 2507.18 | 未披露 | 定期报告 | 2018-11-05 |
| 2018-11-07 | 2506.64 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-08 | 2505.03 | 未披露 | 定期报告 | 2018-08-06 |
| 2018-08-08 | 2504.40 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-09 | 2492.66 | 未披露 | 定期报告 | 2018-05-07 |
| 2018-05-09 | 2491.27 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-04-05 | 2490.77 | 未披露 | 定期报告 | 2018-03-19 |
| 2018-02-28 | 2491.21 | 未披露 | 定期报告 | 2018-02-26 |
| 2018-02-28 | 2491.68 | 未披露 | 定期报告 | 2017-12-31 |
| 2017-11-08 | 2487.76 | 未披露 | 定期报告 | 2017-11-06 |
| 2017-11-08 | 2484.99 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-02 | 2502.87 | 未披露 | 定期报告 | 2017-07-31 |
| 2017-08-02 | 2502.80 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-03 | 2520.58 | 未披露 | 定期报告 | 2017-05-01 |
| 2017-05-03 | 2534.16 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-04-06 | 2544.23 | 未披露 | 定期报告 | 2017-03-20 |
| 2017-02-28 | 2545.90 | 未披露 | 定期报告 | 2017-02-24 |
| 2017-02-28 | 2542.98 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
repurchased (90,415 )
issued for stock-based awards (376,142 )
|
2016-12-31 |
| 2016-11-02 | 2535.78 | 未披露 | 定期报告 | 2016-10-31 |
| 2016-11-02 | 2535.76 | 未披露 |
更多>>
from December 31, 2015 to September 30, 2016
Shares issued for stock-based awards (292,440 shares)
|
2016-09-30 |
| 2016-08-03 | 2539.62 | 未披露 | 定期报告 | 2016-08-01 |
| 2016-08-03 | 2539.07 | 未披露 |
更多>>
from December 31, 2015 to June 30, 2016
Shares issued for stock-based awards (246,643 shares)
|
2016-06-30 |
| 2016-05-04 | 2534.93 | 未披露 | 定期报告 | 2016-05-02 |
| 2016-05-04 | 2532.41 | 未披露 |
更多>>
from December 31, 2015 to March 31, 2016
Shares issued for stock-based awards (180,026 shares)
|
2016-03-31 |
| 2016-04-06 | 2531.29 | 未披露 | 定期报告 | 2016-03-18 |
| 2016-02-26 | 2520.04 | 未披露 | 定期报告 | 2016-02-24 |
| 2016-02-26 | 2515.14 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Shares repurchased (79,396 in 2015; 461,835 in 2014; and 59,603 in 2013)
Shares issued for stock-based awards (202,882 in 2015; 108,679 in 2014; and 193,033 in 2013)
|
2015-12-31 |
| 2015-11-05 | 2507.64 | 未披露 | 定期报告 | 2015-10-30 |
| 2015-11-05 | 2506.43 | 未披露 |
更多>>
from December 31, 2014 to September 30, 2015
Shares repurchased (79,396 shares)
Shares issued for stock-based awards (113,498 shares)
|
2015-09-30 |
| 2015-08-04 | 2505.87 | 未披露 | 定期报告 | 2015-07-31 |
| 2015-08-04 | 2504.81 | 未披露 |
更多>>
from December 31, 2014 to June 30, 2015
Shares repurchased (49,705 shares)
Shares issued for stock-based awards (67,582 shares)
|
2015-06-30 |
| 2015-05-05 | 2501.89 | 未披露 | 定期报告 | 2015-05-01 |
| 2015-05-05 | 2500.60 | 未披露 |
更多>>
from December 31, 2014 to March 31, 2015
Shares repurchased (37,637 shares)
Shares issued for stock-based awards (24,271 shares)
|
2015-03-31 |
| 2015-03-25 | 2499.85 | 未披露 | 定期报告 | 2015-03-23 |
| 2015-03-02 | 2498.85 | 未披露 | 定期报告 | 2015-02-27 |
| 2015-03-02 | 2501.94 | 未披露 |
更多>>
from December 31,2013 to December 31,2014
Shares repurchased (461,835)
Shares issued for stock-based awards (108,679)
|
2014-12-31 |
| 2014-11-04 | 2504.71 | 未披露 | 定期报告 | 2014-10-31 |
| 2014-11-04 | 2505.64 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-05 | 2521.21 | 未披露 | 定期报告 | 2014-08-01 |
| 2014-08-05 | 2524.01 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-06 | 2539.98 | 未披露 | 定期报告 | 2014-05-02 |
| 2014-05-06 | 2539.68 | 未披露 |
更多>>
from December 31,2013 to March 31, 2014
Shares issued for stock-based awards (35,952 shares)
|
2014-03-31 |
| 2014-04-08 | 2538.96 | 未披露 | 定期报告 | 2014-03-21 |
| 2014-03-05 | 2536.97 | 未披露 | 定期报告 | 2014-02-27 |
| 2014-03-05 | 2536.09 | 未披露 | 定期报告 | 2013-12-31 |
| 2013-11-05 | 2540.40 | 未披露 | 定期报告 | 2013-11-01 |
| 2013-11-05 | 2540.13 | 未披露 |
更多>>
from December 31, 2012 to September 30, 2013
Shares repurchased (3,577 shares)
Shares issued for stock-based awards (177,428 shares)
|
2013-09-30 |
| 2013-08-06 | 2532.86 | 未披露 | 定期报告 | 2013-08-02 |
| 2013-08-06 | 2532.39 | 未披露 |
更多>>
from December 31, 2012 to June 30, 2013
Shares repurchased (3,577 shares)
Shares issued for stock-based awards (99,994 shares)
|
2013-06-30 |
| 2013-05-08 | 2528.10 | 未披露 | 定期报告 | 2013-05-06 |
| 2013-05-08 | 2526.63 | 未披露 |
更多>>
From Dec 31 2012 to March 31, 2013
Shares issued for stock-based awards
|
2013-03-31 |
| 2013-04-15 | 2526.22 | 未披露 | 定期报告 | 2013-03-18 |
| 2013-03-04 | 2524.05 | 未披露 | 定期报告 | 2013-02-28 |
| 2013-03-04 | 2522.75 | 未披露 | 定期报告 | 2012-12-31 |
| 2012-11-07 | 2541.74 | 未披露 |
更多>>
From December 31,2011 to September 30, 2012
Common stock:Shares repurchased (137,792 shares)
Shares issued for stock-based awards (49,832 shares)
|
2012-09-30 |
| 2012-08-08 | 2543.52 | 未披露 | 定期报告 | 2012-08-06 |
| 2012-08-08 | 2543.27 | 未披露 |
更多>>
from DEC.31,2011 to June 30, 2012
Shares repurchased (101,901 shares)
Shares issued for stock-based awards (29,232 shares)
|
2012-06-30 |
| 2012-05-10 | 2550.86 | 未披露 | 定期报告 | 2012-05-07 |
| 2012-05-10 | 2550.78 | 未披露 |
更多>>
from December 31, 2011 to March 31, 2012
Shares issued for stock-based awards (97,000 shares)
|
2012-03-31 |
| 2012-03-15 | 2550.68 | 未披露 | 定期报告 | 2012-03-13 |
| 2012-03-15 | 2550.54 | 未披露 |
更多>>
from Dec 31,2010 to Dec 31,2011
Shares repurchased
|
2011-12-31 |
| 2011-11-07 | 2550.27 | 未披露 |
更多>>
Six Months Ended September 30, 2011
Shares repurchased (701,140 shares)
Shares issued for stock-based awards (8,255 shares)
|
2011-09-30 |
| 2011-08-05 | 2588.02 | 未披露 |
更多>>
Six Months Ended June 30, 2011
Shares repurchased (323,597 shares)
Shares issued for stock-based awards (8,255 shares)
|
2011-06-30 |
| 2011-05-10 | 2619.69 | 未披露 | 定期报告 | 2011-05-05 |
| 2011-03-01 | 2619.56 | 未披露 |
更多>>
from dec 31 2009 to dec 31 2010
Shares repurchased
Shares issued for stock-based awards
|
2010-12-31 |
| 2010-11-01 | 2623.15 | 未披露 |
更多>>
from dec 31 2009 to sep 30 2010
Shares repurchased
Shares issued for stock-based awards
|
2010-09-30 |
| 2010-07-30 | 2632.12 | 未披露 |
更多>>
from dec 31 2009 to jun 30 2010
Shares repurchased
Shares issued for stock-based awards
|
2010-06-30 |
| 2010-05-03 | 2636.78 | 未披露 | 定期报告 | 2010-04-28 |
| 2010-05-03 | 2636.68 | 未披露 |
更多>>
Shares repurchased
|
2010-03-31 |
| 2010-03-01 | 2638.16 | 未披露 | 定期报告 | 2010-02-23 |
| 2010-03-01 | 2653.30 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Shares repurchased (92,721 in 2009, 580,792 in 2008 and 497,500 in 2007)
Shares issued for stock-based awards
|
2009-12-31 |
| 2009-03-02 | 2662.41 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Repurchase of 580,792 shares of common stock
Issuance of 8,350 shares of common stock attributable to exercise of stock options
Issuance of 640 shares of common stock attributable to employee service awards
|
2008-12-31 |
| 2008-02-27 | 2711.65 | 未披露 | 定期报告 | 2008-02-22 |
| 2008-02-27 | 2719.59 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Repurchase of 497,500 shares of common stock
Issuance of 43,650 shares of common stock attributable to exercise of stock options
Issuance of 745 shares of common stock attributable to employee service awards
|
2007-12-31 |
| 2007-03-01 | 2765.14 | 未披露 | 定期报告 | 2007-02-23 |
| 2007-03-01 | 2764.90 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Issuance of 4,025,000 shares of common stock attributable to common stock offering
Issuance of 25,380 shares of common stock attributable to exercise of stock options
Issuance of 840 shares of common stock attributable to employee service awards
|
2006-12-31 |
| 2006-03-01 | 2359.88 | 未披露 | 定期报告 | 2006-02-27 |
| 2006-03-01 | 2359.78 | 未披露 |
更多>>
from December 31, 2004 to December 31, 2005
Issuance of 3,420,727 shares of common stock attributable to conversion of preferred stock
Issuance of 43,640 shares of common stock attributable to exercise of stock options
Issuance of 850 shares of common stock attributable to employee service awards
|
2005-12-31 |
| 2005-03-01 | 2013.26 | 未披露 |
更多>>
from December 31, 2003 to December 31, 2004
Issuance of 10,066,028 shares of common stock attributable to a one-for-one stock dividend
Issuance of shares of common stock attributable to exercise of stock options
Issuance of shares of common stock attributable to conversion of preferred stock
|
2004-12-31 |
| 2004-03-03 | 1004.26 | 未披露 | 定期报告 | 2004-02-01 |
| 2004-03-03 | 1004.24 | 未披露 |
更多>>
from December 31, 2002 to December 31, 2003
Issuance of 5,100 shares of common stock attributable to exercise of stock options
|
2003-12-31 |
| 2003-03-18 | 1003.73 | 未披露 |
更多>>
from December 31, 2001 to December 31, 2002
Issuance of 1,525 shares of common stock attributable to exercise of stock options
|
2002-12-31 |
| 2002-03-05 | 1003.68 | 未披露 | 定期报告 | 2002-02-01 |
| 2001-04-02 | 1003.58 | 未披露 |
更多>>
from December 31, 1999 to December 31, 2000
Purchase and retirement of 24,265 shares of common stock
|
2000-12-31 |
| 2000-03-30 | 1006.01 | 未披露 |
更多>>
from December 31, 1998 to December 31, 1999
Purchase and retirement of 31,637 shares of common stock
|
1999-12-31 |
| 1999-03-31 | 1009.17 | 未披露 |
更多>>
from December 31, 1997 to December 31, 1998
Purchase and retirement of 635,601 shares of common stock
|
1998-12-31 |
| 1998-03-30 | 1071.12 | 未披露 | 定期报告 | 1998-03-02 |
| 1998-03-30 | 1072.73 | 未披露 |
更多>>
from December 31, 1996 to December 31, 1997
Purchase and retirement of 390 shares of common stock
|
1997-12-31 |
| 1997-03-27 | 1072.77 | 未披露 |
更多>>
from December 31, 1995 to December 31, 1996
Purchase and retirement of 101,958 shares of common stock
|
1996-12-31 |
| 1996-03-29 | 1082.95 | 未披露 |
更多>>
from December 31, 1994 to December 31, 1995
Three for two stock split
Purchase and retirement of 372 shares of common stock
|
1995-12-31 |
| 1996-03-29 | 1082.97 | 未披露 |
更多>>
from December 31, 1993 to December 31, 1994
Three for two stock split
|
1994-12-31 |
From June 30, 2025 to September 30, 2025
Stock based compensation
From March 31, 2025 to June 30, 2025
Stock based compensation
From December 31,2023 to December 31,2024
Stock based compensation
From June 30,2024 to September 30,2024
Stock based compensation
From March 31, 2024 to June 30, 2024
Stock based compensation
From January 1, 2024 to March 31, 2024
Stock based compensation
From January 1, 2023 to December 31,2023
Stock based compensation
From June 30, 2023 to September 30, 2023
Stock based compensation
From March 31, 2023 to June 30, 2023
Stock based compensation
From January 1, 2022 to December 31, 2022
Stock based compensation
From June 30, 2022 to September 30, 2022
Stock based compensation
From March 31, 2022 to June 30, 2022
Stock based compensation
From January 1, 2021 to December 31, 2021
Shares repurchased
Stock based compensation
From June 30, 2021 to September 30, 2021
Shares repurchased
From March 31, 2021 to June 30, 2021
Shares repurchased
Stock based compensation
from January 1, 2021 to March 31, 2021
Shares repurchased
Stock based compensation
From January 1, 2020 to December 31, 2020
Shares repurchased
Stock based compensation
From March 31, 2020 to June 30, 2020
Stock based compensation
From January 1, 2020 to March 31, 2020
Shares repurchased
Stock based compensation
From December 31, 2018 to December 31, 2019
Shares repurchased
Stock based compensation
From June 30, 2019 to September 30, 2019
Shares repurchased
Stock based compensation
from December 31, 2015 to December 31, 2016
repurchased (90,415 )
issued for stock-based awards (376,142 )
from December 31, 2015 to September 30, 2016
Shares issued for stock-based awards (292,440 shares)
from December 31, 2015 to June 30, 2016
Shares issued for stock-based awards (246,643 shares)
from December 31, 2015 to March 31, 2016
Shares issued for stock-based awards (180,026 shares)
from December 31, 2014 to December 31, 2015
Shares repurchased (79,396 in 2015; 461,835 in 2014; and 59,603 in 2013)
Shares issued for stock-based awards (202,882 in 2015; 108,679 in 2014; and 193,033 in 2013)
from December 31, 2014 to September 30, 2015
Shares repurchased (79,396 shares)
Shares issued for stock-based awards (113,498 shares)
from December 31, 2014 to June 30, 2015
Shares repurchased (49,705 shares)
Shares issued for stock-based awards (67,582 shares)
from December 31, 2014 to March 31, 2015
Shares repurchased (37,637 shares)
Shares issued for stock-based awards (24,271 shares)
from December 31,2013 to December 31,2014
Shares repurchased (461,835)
Shares issued for stock-based awards (108,679)
from December 31,2013 to March 31, 2014
Shares issued for stock-based awards (35,952 shares)
from December 31, 2012 to September 30, 2013
Shares repurchased (3,577 shares)
Shares issued for stock-based awards (177,428 shares)
from December 31, 2012 to June 30, 2013
Shares repurchased (3,577 shares)
Shares issued for stock-based awards (99,994 shares)
From Dec 31 2012 to March 31, 2013
Shares issued for stock-based awards
From December 31,2011 to September 30, 2012
Common stock:Shares repurchased (137,792 shares)
Shares issued for stock-based awards (49,832 shares)
from DEC.31,2011 to June 30, 2012
Shares repurchased (101,901 shares)
Shares issued for stock-based awards (29,232 shares)
from December 31, 2011 to March 31, 2012
Shares issued for stock-based awards (97,000 shares)
from Dec 31,2010 to Dec 31,2011
Shares repurchased
Six Months Ended September 30, 2011
Shares repurchased (701,140 shares)
Shares issued for stock-based awards (8,255 shares)
Six Months Ended June 30, 2011
Shares repurchased (323,597 shares)
Shares issued for stock-based awards (8,255 shares)
from dec 31 2009 to dec 31 2010
Shares repurchased
Shares issued for stock-based awards
from dec 31 2009 to sep 30 2010
Shares repurchased
Shares issued for stock-based awards
from dec 31 2009 to jun 30 2010
Shares repurchased
Shares issued for stock-based awards
Shares repurchased
from December 31, 2008 to December 31, 2009
Shares repurchased (92,721 in 2009, 580,792 in 2008 and 497,500 in 2007)
Shares issued for stock-based awards
from December 31, 2007 to December 31, 2008
Repurchase of 580,792 shares of common stock
Issuance of 8,350 shares of common stock attributable to exercise of stock options
Issuance of 640 shares of common stock attributable to employee service awards
from December 31, 2006 to December 31, 2007
Repurchase of 497,500 shares of common stock
Issuance of 43,650 shares of common stock attributable to exercise of stock options
Issuance of 745 shares of common stock attributable to employee service awards
from December 31, 2005 to December 31, 2006
Issuance of 4,025,000 shares of common stock attributable to common stock offering
Issuance of 25,380 shares of common stock attributable to exercise of stock options
Issuance of 840 shares of common stock attributable to employee service awards
from December 31, 2004 to December 31, 2005
Issuance of 3,420,727 shares of common stock attributable to conversion of preferred stock
Issuance of 43,640 shares of common stock attributable to exercise of stock options
Issuance of 850 shares of common stock attributable to employee service awards
from December 31, 2003 to December 31, 2004
Issuance of 10,066,028 shares of common stock attributable to a one-for-one stock dividend
Issuance of shares of common stock attributable to exercise of stock options
Issuance of shares of common stock attributable to conversion of preferred stock
from December 31, 2002 to December 31, 2003
Issuance of 5,100 shares of common stock attributable to exercise of stock options
from December 31, 2001 to December 31, 2002
Issuance of 1,525 shares of common stock attributable to exercise of stock options
from December 31, 1999 to December 31, 2000
Purchase and retirement of 24,265 shares of common stock
from December 31, 1998 to December 31, 1999
Purchase and retirement of 31,637 shares of common stock
from December 31, 1997 to December 31, 1998
Purchase and retirement of 635,601 shares of common stock
from December 31, 1996 to December 31, 1997
Purchase and retirement of 390 shares of common stock
from December 31, 1995 to December 31, 1996
Purchase and retirement of 101,958 shares of common stock
from December 31, 1994 to December 31, 1995
Three for two stock split
Purchase and retirement of 372 shares of common stock
from December 31, 1993 to December 31, 1994
Three for two stock split