股本结构
单位：万股
| 公告日期 | 2025-10-29 | 2025-10-29 | 2025-07-30 | 2025-07-30 | 2025-04-30 | 2025-04-30 |
|---|---|---|---|---|---|---|
| 证券总股本 | 2524.52 | 2532.60 | 2538.90 | 2539.60 | 2539.72 | 2562.80 |
| 普通股本 | 2524.52 | 2532.60 | 2538.90 | 2539.60 | 2539.72 | 2562.80 |
| 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 | 2025-10-22 | 2025-09-30 | 2025-07-23 | 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 |
|---|---|---|---|---|
| 2025-10-29 | 2524.52 | 未披露 | 定期报告 | 2025-10-22 |
| 2025-10-29 | 2532.60 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Repurchase of common stock for treasury
Restricted stock units vested
|
2025-09-30 |
| 2025-07-30 | 2538.90 | 未披露 | 定期报告 | 2025-07-23 |
| 2025-07-30 | 2539.60 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
|
2025-06-30 |
| 2025-04-30 | 2539.72 | 未披露 | 定期报告 | 2025-04-23 |
| 2025-04-30 | 2562.80 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Restricted stock units vested
Repurchase of common stock for treasury
|
2025-03-31 |
| 2025-03-28 | 2587.45 | 未披露 | 定期报告 | 2025-03-17 |
| 2025-02-24 | 2616.00 | 未披露 | 定期报告 | 2025-02-14 |
| 2025-02-24 | 2630.00 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
|
2024-12-31 |
| 2024-10-30 | 2628.95 | 未披露 | 定期报告 | 2024-10-23 |
| 2024-10-30 | 2628.90 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Restricted stock units vested
|
2024-09-30 |
| 2024-07-31 | 2629.32 | 未披露 | 定期报告 | 2024-07-24 |
| 2024-07-31 | 2633.20 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Restricted stock units vested
Repurchase of common stock for treasury
Issuance of common stock under Employee Stock Purchase Plan
|
2024-06-30 |
| 2024-05-01 | 2636.34 | 未披露 | 定期报告 | 2024-04-24 |
| 2024-05-01 | 2636.60 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Restricted stock units vested
Repurchase of common stock for treasury
|
2024-03-31 |
| 2024-03-29 | 2636.29 | 未披露 | 定期报告 | 2024-03-18 |
| 2024-03-07 | 2636.11 | 未披露 | 定期报告 | 2024-02-15 |
| 2024-03-07 | 2636.00 | 未披露 |
更多>>
From December 31,2022 to December 31,2023
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
|
2023-12-31 |
| 2023-11-01 | 2627.15 | 未披露 | 定期报告 | 2023-10-25 |
| 2023-11-01 | 2627.20 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Restricted stock units vested
|
2023-09-30 |
| 2023-08-02 | 2625.68 | 未披露 | 定期报告 | 2023-07-26 |
| 2023-05-04 | 2627.76 | 未披露 | 定期报告 | 2023-04-27 |
| 2023-05-04 | 2628.08 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Restricted stock units vested
Repurchase of common stock for treasury
|
2023-03-31 |
| 2023-04-07 | 2627.82 | 未披露 | 定期报告 | 2023-03-17 |
| 2023-03-06 | 2631.29 | 未披露 | 定期报告 | 2023-02-24 |
| 2023-03-06 | 2635.00 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Restricted stock units vested
|
2022-12-31 |
| 2022-11-04 | 2628.84 | 未披露 | 定期报告 | 2022-10-28 |
| 2022-11-04 | 2628.80 | 未披露 |
更多>>
From September 30, 2021 to September 30, 2022
Restricted stock units vested
|
2022-09-30 |
| 2022-08-04 | 2627.36 | 未披露 | 定期报告 | 2022-07-29 |
| 2022-08-04 | 2627.20 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Restricted stock units vested
|
2022-06-30 |
| 2022-05-05 | 2626.70 | 未披露 | 定期报告 | 2022-04-29 |
| 2022-04-22 | 2627.25 | 未披露 | 定期报告 | 2022-04-13 |
| 2022-04-22 | 2626.70 | 未披露 | 定期报告 | 2022-04-06 |
| 2022-05-05 | 2626.10 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Restricted stock units vested
|
2022-03-31 |
| 2022-03-14 | 2626.01 | 未披露 | 定期报告 | 2022-03-11 |
| 2022-03-14 | 2625.20 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Restricted stock units vested
|
2021-12-31 |
| 2021-11-04 | 2620.94 | 未披露 | 定期报告 | 2021-10-29 |
| 2021-11-04 | 2620.50 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Restricted stock units vested
|
2021-09-30 |
| 2021-08-05 | 2619.17 | 未披露 | 定期报告 | 2021-07-30 |
| 2021-08-05 | 2618.70 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Restricted stock units vested
|
2021-06-30 |
| 2021-04-30 | 2618.72 | 未披露 | 定期报告 | 2021-04-06 |
| 2021-05-07 | 2617.50 | 未披露 |
更多>>
From December 31, 2020 To March 31, 2021
Restricted stock units vested
|
2021-03-31 |
| 2021-03-16 | 2617.48 | 未披露 | 定期报告 | 2021-03-12 |
| 2021-03-16 | 2617.00 | 未披露 |
更多>>
From December 31, 2019 to December 31, 2020
Issuance of common stock under Employee Stock Purchase Plan
Restricted stock units vested
Repurchase of common stock for treasury
|
2020-12-31 |
| 2020-11-09 | 2617.55 | 未披露 | 定期报告 | 2020-11-06 |
| 2020-11-09 | 2614.20 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Restricted stock units vested
|
2020-09-30 |
| 2020-08-10 | 2612.57 | 未披露 | 定期报告 | 2020-08-07 |
| 2020-08-10 | 2611.90 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
|
2020-06-30 |
| 2020-04-29 | 2610.75 | 未披露 | 定期报告 | 2020-04-15 |
| 2020-04-30 | 2610.10 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Restricted stock units vested
Repurchase of common stock for treasury
|
2020-03-31 |
| 2020-02-06 | 2634.48 | 未披露 | 定期报告 | 2020-02-04 |
| 2020-02-06 | 2634.50 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Issuance of common stock under Employee Stock Purchase Plan
Restricted stock units vested
Repurchase of common stock for treasury
|
2019-12-31 |
| 2019-10-30 | 2631.63 | 未披露 | 定期报告 | 2019-10-28 |
| 2019-10-30 | 2631.70 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Restricted stock units vested
Repurchase of common stock for treasury
|
2019-09-30 |
| 2019-08-01 | 2631.81 | 未披露 | 定期报告 | 2019-07-29 |
| 2019-08-01 | 2631.80 | 未披露 |
更多>>
From March 31, 2019 to June 30, 2019
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
|
2019-06-30 |
| 2019-05-02 | 2635.93 | 未披露 | 定期报告 | 2019-04-29 |
| 2019-05-02 | 2635.61 | 未披露 |
更多>>
From December 31, 2018 to March 31, 2019
Restricted stock units vested
Repurchase of common stock for treasury
|
2019-03-31 |
| 2019-02-07 | 2639.57 | 未披露 | 定期报告 | 2019-02-04 |
| 2019-02-07 | 2639.60 | 未披露 |
更多>>
From December 31, 2017 to December 31, 2018
Issuance of common stock under Employee Stock Purchase Plan
Restricted stock units vested
|
2018-12-31 |
| 2018-11-01 | 2673.01 | 未披露 | 定期报告 | 2018-10-30 |
| 2018-08-02 | 2670.25 | 未披露 | 定期报告 | 2018-07-31 |
| 2018-05-09 | 2668.33 | 未披露 | 定期报告 | 2018-04-30 |
| 2018-04-12 | 2669.00 | 未披露 | 定期报告 | 2018-04-09 |
| 2018-04-12 | 2673.65 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-09 | 2685.28 | 未披露 | 定期报告 | 2018-02-26 |
| 2018-03-09 | 2685.30 | 未披露 |
更多>>
From December 31, 2016 to December 31, 2017
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
|
2017-12-31 |
| 2017-11-09 | 2681.56 | 未披露 | 定期报告 | 2017-11-03 |
| 2017-08-04 | 2678.45 | 未披露 | 定期报告 | 2017-07-31 |
| 2017-07-27 | 2678.50 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-08 | 2676.11 | 未披露 | 定期报告 | 2017-05-01 |
| 2017-03-31 | 2674.97 | 未披露 | 定期报告 | 2017-03-24 |
| 2017-03-03 | 2671.92 | 未披露 | 定期报告 | 2017-02-27 |
| 2017-03-03 | 2660.90 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
|
2016-12-31 |
| 2016-11-04 | 2655.93 | 未披露 | 定期报告 | 2016-10-31 |
| 2016-10-27 | 2655.90 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-05 | 2653.37 | 未披露 | 定期报告 | 2016-08-01 |
| 2016-07-28 | 2652.20 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-06 | 2650.09 | 未披露 | 定期报告 | 2016-05-02 |
| 2016-04-28 | 2650.10 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-04-07 | 2650.09 | 未披露 | 定期报告 | 2016-03-28 |
| 2016-03-03 | 2649.76 | 未披露 | 定期报告 | 2016-02-25 |
| 2016-03-03 | 2649.80 | 未披露 |
更多>>
From December 31, 2014 to December 31, 2015
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
|
2015-12-31 |
| 2015-11-06 | 2644.45 | 未披露 | 定期报告 | 2015-11-02 |
| 2015-10-30 | 2644.40 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-07 | 2641.10 | 未披露 | 定期报告 | 2015-08-03 |
| 2015-07-30 | 2639.60 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-08 | 2635.06 | 未披露 | 定期报告 | 2015-05-01 |
| 2015-04-30 | 2635.10 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-04-09 | 2635.06 | 未披露 | 定期报告 | 2015-03-23 |
| 2015-03-06 | 2634.35 | 未披露 | 定期报告 | 2015-02-16 |
| 2015-03-06 | 2634.30 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
|
2014-12-31 |
| 2014-10-31 | 2630.29 | 未披露 | 定期报告 | 2014-10-30 |
| 2014-08-05 | 2622.41 | 未披露 | 定期报告 | 2014-08-01 |
| 2014-05-09 | 2620.58 | 未披露 | 定期报告 | 2014-05-01 |
| 2014-05-01 | 2620.60 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-10 | 2619.99 | 未披露 | 定期报告 | 2014-02-15 |
| 2014-03-10 | 2620.00 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
Shares withheld for taxes paid on stock awards
|
2013-12-31 |
| 2013-11-04 | 2616.95 | 未披露 | 定期报告 | 2013-11-01 |
| 2013-08-02 | 2615.98 | 未披露 | 定期报告 | 2013-07-31 |
| 2013-04-09 | 2611.84 | 未披露 | 定期报告 | 2013-03-27 |
| 2013-03-04 | 2595.64 | 未披露 | 定期报告 | 2013-02-15 |
| 2013-03-04 | 2588.70 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
Shares withheld for taxes paid on stock awards
Repurchase of common stock for treasury
|
2012-12-31 |
| 2012-11-07 | 2651.08 | 未披露 | 定期报告 | 2012-11-01 |
| 2012-08-08 | 2645.15 | 未披露 | 定期报告 | 2012-08-01 |
| 2012-05-07 | 2640.11 | 未披露 | 定期报告 | 2012-05-01 |
| 2012-02-28 | 2644.13 | 未披露 | 定期报告 | 2012-02-15 |
| 2012-02-28 | 2636.50 | 未披露 |
更多>>
from Dec 31,2010 to Dec 31,2011
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
|
2011-12-31 |
| 2011-11-08 | 2643.39 | 未披露 | 定期报告 | 2011-11-01 |
| 2011-11-08 | 2630.90 | 未披露 |
更多>>
from January 1, 2011 to September 30, 2011
Issuance of common stock under Employee Stock Purchase Plan
Issuance of common stock under stock incentive plans
Nonvested stock awards
Repurchase of common stock for treasury
|
2011-09-30 |
| 2011-08-11 | 2674.57 | 未披露 | 定期报告 | 2011-08-01 |
| 2011-05-12 | 2689.48 | 未披露 | 定期报告 | 2011-05-01 |
| 2011-03-11 | 2690.98 | 未披露 | 定期报告 | 2011-03-03 |
| 2011-03-11 | 2665.30 | 未披露 |
更多>>
from December 31, 2009 to December 31, 2010
Issuance of common stock under stock incentive plans, including income tax deficiencies
Issuance of common stock under Employee Stock Purchase Plan
|
2010-12-31 |
| 2010-11-10 | 2683.66 | 未披露 | 定期报告 | 2010-11-01 |
| 2010-08-06 | 2708.33 | 未披露 | 定期报告 | 2010-07-30 |
| 2010-03-15 | 2714.76 | 未披露 | 定期报告 | 2010-03-05 |
| 2010-03-15 | 2684.80 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
Repurchase of common stock for Treasury
|
2009-12-31 |
| 2009-03-16 | 2701.27 | 未披露 | 定期报告 | 2009-03-04 |
| 2009-03-16 | 2683.40 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Issuance of common stock under stock incentive plans, including income tax benefits
Issuance of common stock under Employee Stock Purchase Plan
Issuance of nonvested stock
Repurchase of common stock for Treasury
|
2008-12-31 |
| 2008-03-14 | 2683.57 | 未披露 | 定期报告 | 2008-03-03 |
| 2008-03-14 | 2692.50 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Issuance of common stock under stock incentive plans, including income tax benefits
Issuance of common stock under Employee Stock Purchase Plan
Issuance of nonvested stock
|
2007-12-31 |
| 2007-03-28 | 2679.38 | 未披露 | 定期报告 | 2007-03-16 |
| 2007-03-28 | 2651.00 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
Nonvested stock awards
|
2006-12-31 |
| 2006-03-30 | 2525.93 | 未披露 | 定期报告 | 2006-03-17 |
| 2006-03-30 | 2525.90 | 未披露 |
更多>>
from December 31, 2004 to December 31, 2005
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
|
2005-12-31 |
| 2005-03-31 | 2513.57 | 未披露 | 定期报告 | 2005-03-14 |
| 2005-03-31 | 2510.00 | 未披露 |
更多>>
from December 31, 2003 to December 31, 2004
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
|
2004-12-31 |
| 2004-03-30 | 2499.79 | 未披露 | 定期报告 | 2004-03-12 |
| 2004-03-30 | 2498.00 | 未披露 |
更多>>
from December 31, 2002 to December 31, 2003
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
|
2003-12-31 |
| 2003-03-31 | 2466.00 | 未披露 | 定期报告 | 2003-03-20 |
| 2003-03-31 | 2463.50 | 未披露 |
更多>>
from December 31, 2001 to December 31, 2002
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
Repurchase of common stock for Treasury
|
2002-12-31 |
| 2002-04-01 | 2455.51 | 未披露 | 定期报告 | 2002-03-20 |
| 2002-04-01 | 2454.30 | 未披露 |
更多>>
from DECEMBER 31, 2000 to DECEMBER 31,2001
Issuance of stock under employee stock purchase plan
Exercise of stock options, including income tax benefits
Repurchase of common stock for Treasury
|
2001-12-31 |
| 2001-03-30 | 2441.89 | 未披露 | 定期报告 | 2001-03-22 |
| 2001-03-30 | 2441.60 | 未披露 |
更多>>
from DECEMBER 31, 1999 to DECEMBER 31,2000
Issuance of stock under employee stock purchase plan
Exercise of stock options, including income tax benefits
In April 2000, the Company's Board of Directors approved a three-for-two
stock split of its outstanding shares of Common Stock to be effected in the
form of a 50% stock dividend. The dividend was distributed on May 23, 2000 to
the Company's stockholders of record as of the close of business on May 12,
2000.
|
2000-12-31 |
| 2000-03-30 | 1579.43 | 未披露 | 定期报告 | 2000-03-27 |
| 2000-03-30 | 1576.70 | 未披露 |
更多>>
from DECEMBER 31, 1998 to DECEMBER 31, 1999
Issuance of stock under employee stock purchase plan
Exercise of stock options, including income tax benefits
|
1999-12-31 |
| 1999-03-31 | 1562.49 | 未披露 | 定期报告 | 1999-03-18 |
| 1999-03-31 | 1560.50 | 未披露 |
更多>>
from DECEMBER 31, 1997 to DECEMBER 31, 1998
Net proceeds from initial public offering
Exercise of stock options, including income tax benefits
|
1998-12-31 |
| 1999-03-31 | 1179.90 | 未披露 | 定期报告 | 1997-12-31 |
From June 30, 2025 to September 30, 2025
Repurchase of common stock for treasury
Restricted stock units vested
From March 31, 2025 to June 30, 2025
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
From December 31, 2024 to March 31, 2025
Restricted stock units vested
Repurchase of common stock for treasury
From December 31, 2023 to December 31, 2024
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
From June 30, 2024 to September 30, 2024
Restricted stock units vested
From March 31, 2024 to June 30, 2024
Restricted stock units vested
Repurchase of common stock for treasury
Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2023 to March 31, 2024
Restricted stock units vested
Repurchase of common stock for treasury
From December 31,2022 to December 31,2023
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
From June 30, 2023 to September 30, 2023
Restricted stock units vested
From December 31, 2022 to March 31, 2023
Restricted stock units vested
Repurchase of common stock for treasury
From December 31, 2021 to December 31, 2022
Restricted stock units vested
From September 30, 2021 to September 30, 2022
Restricted stock units vested
From March 31, 2022 to June 30, 2022
Restricted stock units vested
From December 31, 2021 to March 31, 2022
Restricted stock units vested
From December 31, 2020 to December 31, 2021
Restricted stock units vested
From June 30, 2021 to September 30, 2021
Restricted stock units vested
From March 31, 2021 to June 30, 2021
Restricted stock units vested
From December 31, 2020 To March 31, 2021
Restricted stock units vested
From December 31, 2019 to December 31, 2020
Issuance of common stock under Employee Stock Purchase Plan
Restricted stock units vested
Repurchase of common stock for treasury
From June 30, 2020 to September 30, 2020
Restricted stock units vested
From March 31, 2020 to June 30, 2020
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2019 to March 31, 2020
Restricted stock units vested
Repurchase of common stock for treasury
from December 31, 2018 to December 31, 2019
Issuance of common stock under Employee Stock Purchase Plan
Restricted stock units vested
Repurchase of common stock for treasury
from June 30, 2019 to September 30, 2019
Restricted stock units vested
Repurchase of common stock for treasury
From March 31, 2019 to June 30, 2019
Restricted stock units vested
Issuance of common stock under Employee Stock Purchase Plan
Repurchase of common stock for treasury
From December 31, 2018 to March 31, 2019
Restricted stock units vested
Repurchase of common stock for treasury
From December 31, 2017 to December 31, 2018
Issuance of common stock under Employee Stock Purchase Plan
Restricted stock units vested
From December 31, 2016 to December 31, 2017
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
from December 31, 2015 to December 31, 2016
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
From December 31, 2014 to December 31, 2015
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
from December 31, 2013 to December 31, 2014
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
from December 31, 2012 to December 31, 2013
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
Shares withheld for taxes paid on stock awards
from December 31, 2011 to December 31, 2012
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
Shares withheld for taxes paid on stock awards
Repurchase of common stock for treasury
from Dec 31,2010 to Dec 31,2011
Issuance of common stock under stock incentive plans
Issuance of common stock under Employee Stock Purchase Plan
from January 1, 2011 to September 30, 2011
Issuance of common stock under Employee Stock Purchase Plan
Issuance of common stock under stock incentive plans
Nonvested stock awards
Repurchase of common stock for treasury
from December 31, 2009 to December 31, 2010
Issuance of common stock under stock incentive plans, including income tax deficiencies
Issuance of common stock under Employee Stock Purchase Plan
from December 31, 2008 to December 31, 2009
Issuance of common stock under Employee Stock Purchase Plan
Nonvested stock awards
Repurchase of common stock for Treasury
from December 31, 2007 to December 31, 2008
Issuance of common stock under stock incentive plans, including income tax benefits
Issuance of common stock under Employee Stock Purchase Plan
Issuance of nonvested stock
Repurchase of common stock for Treasury
from December 31, 2006 to December 31, 2007
Issuance of common stock under stock incentive plans, including income tax benefits
Issuance of common stock under Employee Stock Purchase Plan
Issuance of nonvested stock
from December 31, 2005 to December 31, 2006
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
Nonvested stock awards
from December 31, 2004 to December 31, 2005
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
from December 31, 2003 to December 31, 2004
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
from December 31, 2002 to December 31, 2003
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
from December 31, 2001 to December 31, 2002
Exercise of stock options, including income tax benefits
Issuance of stock under employee stock purchase plan
Repurchase of common stock for Treasury
from DECEMBER 31, 2000 to DECEMBER 31,2001
Issuance of stock under employee stock purchase plan
Exercise of stock options, including income tax benefits
Repurchase of common stock for Treasury
from DECEMBER 31, 1999 to DECEMBER 31,2000
Issuance of stock under employee stock purchase plan
Exercise of stock options, including income tax benefits
In April 2000, the Company's Board of Directors approved a three-for-two
stock split of its outstanding shares of Common Stock to be effected in the
form of a 50% stock dividend. The dividend was distributed on May 23, 2000 to
the Company's stockholders of record as of the close of business on May 12,
2000.
from DECEMBER 31, 1998 to DECEMBER 31, 1999
Issuance of stock under employee stock purchase plan
Exercise of stock options, including income tax benefits
from DECEMBER 31, 1997 to DECEMBER 31, 1998
Net proceeds from initial public offering
Exercise of stock options, including income tax benefits