股本结构
单位：万股
| 公告日期 | 2026-08-12 | 2026-08-12 | 2026-05-08 | 2026-05-08 | 2026-03-16 | 2026-03-16 |
|---|---|---|---|---|---|---|
| 证券总股本 | 1032.71 | 1032.71 | 1032.44 | 1031.84 | 1031.84 | 1031.58 |
| 普通股本 | 1032.71 | 1032.71 | 1032.44 | 1031.84 | 1031.84 | 1031.58 |
| 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 | 2026-08-10 | 2026-06-30 | 2026-05-06 | 2026-03-31 | 2026-03-10 | 2025-12-31 |
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 |
|---|---|---|---|---|
| 2026-08-12 | 1032.71 | 未披露 | 定期报告 | 2026-08-10 |
| 2026-08-12 | 1032.71 | 未披露 |
更多>>
From March 31, 2026 to June 30, 2026
Dividend reinvestment plan
Employee stock options and awards
|
2026-06-30 |
| 2026-05-08 | 1032.44 | 未披露 | 定期报告 | 2026-05-06 |
| 2026-05-08 | 1031.84 | 未披露 |
更多>>
From December 31, 2025 to March 31, 2026
Dividend reinvestment plan
|
2026-03-31 |
| 2026-03-16 | 1031.84 | 未披露 | 定期报告 | 2026-03-10 |
| 2026-03-16 | 1031.58 | 未披露 |
更多>>
From December 31, 2024 to December 31, 2025
Dividend reinvestment plan
Employee stock options and awards
|
2025-12-31 |
| 2025-11-07 | 1031.31 | 未披露 | 定期报告 | 2025-11-05 |
| 2025-11-07 | 1031.31 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Dividend reinvestment plan
|
2025-09-30 |
| 2025-08-08 | 1031.06 | 未披露 | 定期报告 | 2025-08-06 |
| 2025-08-08 | 1031.05 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Dividend reinvestment plan
Employee stock options and awards
|
2025-06-30 |
| 2025-05-09 | 1030.81 | 未披露 | 定期报告 | 2025-05-07 |
| 2025-05-09 | 1030.35 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Dividend reinvestment plan
|
2025-03-31 |
| 2025-03-26 | 1030.30 | 未披露 | 定期报告 | 2025-03-21 |
| 2025-03-26 | 1030.03 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
|
2024-12-31 |
| 2024-11-08 | 1029.79 | 未披露 | 定期报告 | 2024-11-05 |
| 2024-11-08 | 1029.78 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Dividend reinvestment plan
|
2024-09-30 |
| 2024-08-07 | 1029.56 | 未披露 | 定期报告 | 2024-08-05 |
| 2024-08-07 | 1029.55 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Dividend reinvestment plan
Employee stock options and awards
|
2024-06-30 |
| 2024-05-09 | 1028.58 | 未披露 | 定期报告 | 2024-05-07 |
| 2024-05-09 | 1028.80 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Dividend reinvestment plan
|
2024-03-31 |
| 2024-03-18 | 1028.82 | 未披露 | 定期报告 | 2024-03-12 |
| 2024-03-18 | 1028.58 | 未披露 |
更多>>
From December 31,2022 to December 31,2023
Public offering, net of costs
Dividend reinvestment plan
Employee stock options and awards
|
2023-12-31 |
| 2023-11-07 | 1027.70 | 未披露 | 定期报告 | 2023-11-03 |
| 2023-11-07 | 1030.60 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2023-09-30 |
| 2023-08-08 | 1027.51 | 未披露 | 定期报告 | 2023-08-03 |
| 2023-05-19 | 1020.53 | 未披露 |
更多>>
Description of Security Offered 695,650 shares of Class A Non-Voting Common Stock by the company
|
2023-05-23 |
| 2023-05-10 | 950.97 | 未披露 | 定期报告 | 2023-05-08 |
| 2023-05-10 | 943.70 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Dividend reinvestment plan
Employee stock options and awards
|
2023-03-31 |
| 2023-03-10 | 950.44 | 未披露 | 定期报告 | 2023-03-07 |
| 2023-03-10 | 953.24 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Dividend reinvestment plan
Employee stock options and awards
|
2022-12-31 |
| 2022-11-04 | 949.10 | 未披露 | 定期报告 | 2022-11-02 |
| 2022-09-29 | 949.09 | 未披露 | 定期报告 | 2022-09-27 |
| 2022-08-12 | 945.91 | 未披露 | 定期报告 | 2022-08-09 |
| 2022-08-05 | 943.91 | 未披露 | 定期报告 | 2022-08-02 |
| 2022-05-05 | 943.85 | 未披露 | 定期报告 | 2022-05-02 |
| 2022-05-05 | 943.84 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Dividend reinvestment plan
Employee stock options and awards
|
2022-03-31 |
| 2022-03-11 | 941.61 | 未披露 | 定期报告 | 2022-03-08 |
| 2022-03-11 | 941.42 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2021-12-31 |
| 2021-11-05 | 940.63 | 未披露 | 定期报告 | 2021-11-03 |
| 2021-11-05 | 940.55 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2021-09-30 |
| 2021-08-06 | 940.11 | 未披露 | 定期报告 | 2021-08-03 |
| 2021-08-06 | 940.00 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2021-06-30 |
| 2021-05-06 | 938.44 | 未披露 | 定期报告 | 2021-05-03 |
| 2021-05-06 | 938.40 | 未披露 |
更多>>
From December 31, 2020 to March 31, 2021
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2021-03-31 |
| 2021-03-12 | 936.12 | 未披露 | 定期报告 | 2021-03-09 |
| 2020-11-06 | 934.10 | 未披露 | 定期报告 | 2020-11-03 |
| 2020-11-06 | 934.00 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2020-09-30 |
| 2020-08-07 | 933.56 | 未披露 | 定期报告 | 2020-08-05 |
| 2020-08-07 | 933.30 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2020-06-30 |
| 2020-05-07 | 931.05 | 未披露 | 定期报告 | 2020-05-05 |
| 2020-05-07 | 930.18 | 未披露 |
更多>>
from December 31, 2019 to March 31, 2020
Issuance of common stock：
Dividend reinvestment plan
Employee Retirement Plan
Employee stock options and awards
|
2020-03-31 |
| 2020-03-13 | 929.64 | 未披露 | 定期报告 | 2020-03-09 |
| 2020-03-13 | 929.17 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Issuance of common stock：
Dividend reinvestment plan
Employee Retirement Plan
Employee stock options and awards
|
2019-12-31 |
| 2019-11-08 | 928.53 | 未披露 | 定期报告 | 2019-11-05 |
| 2019-11-08 | 928.47 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Issuance of common stock：
Dividend reinvestment plan
Employee Retirement Plan
|
2019-09-30 |
| 2019-08-09 | 927.96 | 未披露 | 定期报告 | 2019-08-06 |
| 2019-08-09 | 927.88 | 未披露 | 定期报告 | 2019-06-30 |
| 2019-05-10 | 927.45 | 未披露 | 定期报告 | 2019-05-06 |
| 2019-05-10 | 926.83 | 未披露 | 定期报告 | 2019-03-31 |
| 2019-03-15 | 925.45 | 未披露 | 定期报告 | 2019-03-11 |
| 2019-03-15 | 925.05 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2018-12-31 |
| 2018-11-09 | 924.63 | 未披露 | 定期报告 | 2018-11-06 |
| 2018-11-09 | 924.57 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-09 | 924.17 | 未披露 | 定期报告 | 2018-08-06 |
| 2018-08-09 | 924.12 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-03 | 923.04 | 未披露 | 定期报告 | 2018-05-01 |
| 2018-05-03 | 922.97 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-15 | 922.26 | 未披露 | 定期报告 | 2018-03-12 |
| 2018-03-15 | 921.49 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2017-12-31 |
| 2017-11-03 | 919.30 | 未披露 | 定期报告 | 2017-11-01 |
| 2017-11-03 | 919.32 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-04 | 918.84 | 未披露 | 定期报告 | 2017-08-01 |
| 2017-08-04 | 918.75 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-05 | 914.58 | 未披露 | 定期报告 | 2017-05-01 |
| 2017-05-05 | 914.50 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-03-10 | 913.27 | 未披露 | 定期报告 | 2017-03-06 |
| 2017-03-10 | 912.75 | 未披露 |
更多>>
From December 31, 2015 to December 31, 2016
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2016-12-31 |
| 2016-11-04 | 911.52 | 未披露 | 定期报告 | 2016-11-01 |
| 2016-11-04 | 911.41 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-05 | 910.71 | 未披露 | 定期报告 | 2016-08-01 |
| 2016-08-05 | 910.67 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-06 | 907.39 | 未披露 | 定期报告 | 2016-05-03 |
| 2016-05-06 | 907.28 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-11 | 906.55 | 未披露 | 定期报告 | 2016-03-04 |
| 2016-03-11 | 905.77 | 未披露 |
更多>>
From December 31, 2014 to December 31, 2015
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2015-12-31 |
| 2015-11-06 | 900.32 | 未披露 | 定期报告 | 2015-11-02 |
| 2015-11-06 | 900.12 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-07 | 893.03 | 未披露 | 定期报告 | 2015-08-03 |
| 2015-05-07 | 892.14 | 未披露 | 定期报告 | 2015-05-01 |
| 2015-05-07 | 892.02 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-13 | 891.91 | 未披露 | 定期报告 | 2015-03-09 |
| 2015-03-13 | 891.21 | 未披露 |
更多>>
from December 31,2013 to December 31,2014
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2014-12-31 |
| 2014-11-07 | 890.16 | 未披露 | 定期报告 | 2014-11-03 |
| 2014-11-07 | 890.04 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-08 | 889.31 | 未披露 | 定期报告 | 2014-08-04 |
| 2014-08-08 | 889.16 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-09 | 886.81 | 未披露 | 定期报告 | 2014-05-05 |
| 2014-05-09 | 886.38 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-14 | 883.90 | 未披露 | 定期报告 | 2014-03-06 |
| 2014-03-14 | 883.00 | 未披露 |
更多>>
from December 31,2012 to December 31,2013
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2013-12-31 |
| 2013-11-07 | 879.76 | 未披露 | 定期报告 | 2013-11-05 |
| 2013-11-07 | 879.32 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-08-08 | 878.31 | 未披露 | 定期报告 | 2013-08-05 |
| 2013-08-08 | 878.16 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-05-08 | 874.24 | 未披露 | 定期报告 | 2013-05-03 |
| 2013-05-08 | 874.05 | 未披露 | 定期报告 | 2013-03-31 |
| 2013-03-14 | 871.95 | 未披露 | 定期报告 | 2013-03-04 |
| 2013-03-14 | 871.03 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2012-12-31 |
| 2012-11-07 | 869.81 | 未披露 | 定期报告 | 2012-11-05 |
| 2012-11-07 | 869.53 | 未披露 | 定期报告 | 2012-09-30 |
| 2012-08-09 | 866.19 | 未披露 | 定期报告 | 2012-08-06 |
| 2012-05-08 | 864.32 | 未披露 | 定期报告 | 2012-05-02 |
| 2012-05-08 | 864.17 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-03-15 | 862.06 | 未披露 | 定期报告 | 2012-03-07 |
| 2012-03-15 | 861.10 | 未披露 |
更多>>
from Dec 31,2010 to Dec 31,2011
Stock issuance
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2011-12-31 |
| 2011-11-08 | 859.30 | 未披露 | 定期报告 | 2011-11-03 |
| 2011-08-09 | 848.09 | 未披露 | 定期报告 | 2011-08-09 |
| 2011-05-09 | 766.72 | 未披露 | 定期报告 | 2011-05-03 |
| 2011-03-15 | 764.94 | 未披露 | 定期报告 | 2011-03-09 |
| 2011-03-15 | 763.71 | 未披露 |
更多>>
from December 31, 2009 to December 31, 2010
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2010-12-31 |
| 2010-11-08 | 757.74 | 未披露 | 定期报告 | 2010-11-03 |
| 2010-08-06 | 755.37 | 未披露 | 定期报告 | 2010-08-03 |
| 2010-05-07 | 752.00 | 未披露 | 定期报告 | 2010-05-06 |
| 2010-03-11 | 751.68 | 未披露 | 定期报告 | 2010-03-09 |
| 2010-03-11 | 750.72 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
|
2009-12-31 |
| 2009-03-12 | 741.32 | 未披露 | 定期报告 | 2009-03-06 |
| 2008-03-12 | 731.69 | 未披露 | 定期报告 | 2008-03-07 |
| 2008-03-12 | 730.00 | 未披露 |
更多>>
from December 31,2006 to December 31,2007
Stock Issuance
Dividend reinvestment plan
Employee stock options and awards
Employee retirement plan
|
2007-12-31 |
| 2007-03-16 | 611.28 | 未披露 | 定期报告 | 2007-03-09 |
| 2007-03-16 | 608.60 | 未披露 |
更多>>
from December 31,2005 to December 31,2006
Officer bonus
Dividend reinvestment plan
Employee stock options and awards
Employee retirement plan
On May 12, 2006, the Company completed a three for two stock split on its Class A Non-Voting Common Stock and Class B Common Stock, which was effected in the form of a 50% stock dividend. Shareholders of record on May 30, 2006 received one additional share of stock for each two shares held
|
2006-12-31 |
| 2006-05-12 | 602.87 | 未披露 |
更多>>
3:2 stock split
|
2006-07-03 |
| 2006-03-17 | 401.91 | 未披露 | 定期报告 | 2006-03-13 |
| 2006-03-17 | 401.40 | 未披露 |
更多>>
from December 31,2004 to December 31,2005
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee retirement plan
|
2005-12-31 |
| 2005-03-31 | 397.01 | 未披露 | 定期报告 | 2005-02-28 |
| 2005-03-31 | 395.60 | 未披露 |
更多>>
from December 31,2003 to December 31,2004
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee retirement plan
|
2004-12-31 |
| 2004-03-10 | 391.83 | 未披露 | 定期报告 | 2004-03-01 |
| 2003-04-30 | 386.66 | 未披露 |
更多>>
3:2 stock split
|
2003-07-01 |
| 2003-03-21 | 257.77 | 未披露 | 定期报告 | 2003-03-03 |
| 2003-03-21 | 257.43 | 未披露 |
更多>>
from December 31,2001 to December 31,2002
Stock repurchase
Public stock issuance
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
|
2002-12-31 |
| 2002-03-26 | 205.51 | 未披露 | 定期报告 | 2002-03-01 |
| 2002-03-26 | 204.00 | 1.09 |
更多>>
from December 31,2000 to December 31,2001
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
|
2001-12-31 |
| 2001-03-26 | 201.76 | 未披露 | 定期报告 | 2001-03-01 |
| 2001-03-26 | 201.32 | 1.09 |
更多>>
from December 31,1999 to December 31,2000
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
|
2000-12-31 |
| 2000-03-30 | 200.13 | 未披露 | 定期报告 | 2000-03-01 |
| 2000-03-30 | 199.80 | 1.09 |
更多>>
from December 31,1998 to December 31,1999
Stock repurchase
Issuance of common stock
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
|
1999-12-31 |
| 1999-02-11 | 180.54 | 未披露 | 定期报告 | 1999-01-29 |
| 1999-02-11 | 180.38 | 1.09 |
更多>>
from December 31, 1997 to December 31, 1998
Dividend reinvestment plan
Employee stock options
Employee retirement plan
|
1998-12-31 |
| 1998-03-31 | 179.14 | 未披露 | 定期报告 | 1998-03-12 |
| 1998-03-31 | 178.03 | 1.09 |
更多>>
from December 31, 1996 to December 31, 1997
Bonus issuances
Dividend reinvestment plan
Employee stock options
Issuance of common stock
|
1997-12-31 |
| 1997-03-31 | 175.41 | 未披露 | 定期报告 | 1997-03-03 |
| 1997-03-31 | 174.83 | 4.39 |
更多>>
from December 31, 1995 to December 31, 1996
Mandatory sinking fund payments
Bonus issuance
Dividend reinvestment plan
Employee stock options
Issuance of common stock
|
1996-12-31 |
From March 31, 2026 to June 30, 2026
Dividend reinvestment plan
Employee stock options and awards
From December 31, 2025 to March 31, 2026
Dividend reinvestment plan
From December 31, 2024 to December 31, 2025
Dividend reinvestment plan
Employee stock options and awards
From June 30, 2025 to September 30, 2025
Dividend reinvestment plan
From March 31, 2025 to June 30, 2025
Dividend reinvestment plan
Employee stock options and awards
From December 31, 2024 to March 31, 2025
Dividend reinvestment plan
From December 31, 2023 to December 31, 2024
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
From June 30, 2024 to September 30, 2024
Dividend reinvestment plan
From March 31, 2024 to June 30, 2024
Dividend reinvestment plan
Employee stock options and awards
From December 31, 2023 to March 31, 2024
Dividend reinvestment plan
From December 31,2022 to December 31,2023
Public offering, net of costs
Dividend reinvestment plan
Employee stock options and awards
From June 30, 2023 to September 30, 2023
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
Description of Security Offered 695,650 shares of Class A Non-Voting Common Stock by the company
From December 31, 2022 to March 31, 2023
Dividend reinvestment plan
Employee stock options and awards
From December 31, 2021 to December 31, 2022
Dividend reinvestment plan
Employee stock options and awards
From December 31, 2021 to March 31, 2022
Dividend reinvestment plan
Employee stock options and awards
From December 31, 2020 to December 31, 2021
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From June 30, 2021 to September 30, 2021
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From March 31, 2021 to June 30, 2021
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From December 31, 2020 to March 31, 2021
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From June 30, 2020 to September 30, 2020
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From March 31, 2020 to June 30, 2020
Issuance of common stock
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31, 2019 to March 31, 2020
Issuance of common stock：
Dividend reinvestment plan
Employee Retirement Plan
Employee stock options and awards
from December 31, 2018 to December 31, 2019
Issuance of common stock：
Dividend reinvestment plan
Employee Retirement Plan
Employee stock options and awards
from June 30, 2019 to September 30, 2019
Issuance of common stock：
Dividend reinvestment plan
Employee Retirement Plan
from December 31, 2017 to December 31, 2018
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31, 2016 to December 31, 2017
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From December 31, 2015 to December 31, 2016
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
From December 31, 2014 to December 31, 2015
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31,2013 to December 31,2014
Issuance of common stock:
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31,2012 to December 31,2013
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31, 2011 to December 31, 2012
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from Dec 31,2010 to Dec 31,2011
Stock issuance
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31, 2009 to December 31, 2010
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31, 2008 to December 31, 2009
Dividend reinvestment plan
Employee stock options and awards
Employee Retirement Plan
from December 31,2006 to December 31,2007
Stock Issuance
Dividend reinvestment plan
Employee stock options and awards
Employee retirement plan
from December 31,2005 to December 31,2006
Officer bonus
Dividend reinvestment plan
Employee stock options and awards
Employee retirement plan
On May 12, 2006, the Company completed a three for two stock split on its Class A Non-Voting Common Stock and Class B Common Stock, which was effected in the form of a 50% stock dividend. Shareholders of record on May 30, 2006 received one additional share of stock for each two shares held
3:2 stock split
from December 31,2004 to December 31,2005
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee retirement plan
from December 31,2003 to December 31,2004
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee retirement plan
3:2 stock split
from December 31,2001 to December 31,2002
Stock repurchase
Public stock issuance
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
from December 31,2000 to December 31,2001
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
from December 31,1999 to December 31,2000
Officer bonus
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
from December 31,1998 to December 31,1999
Stock repurchase
Issuance of common stock
Dividend reinvestment plan
Employee stock options
Employee Retirement Plan
from December 31, 1997 to December 31, 1998
Dividend reinvestment plan
Employee stock options
Employee retirement plan
from December 31, 1996 to December 31, 1997
Bonus issuances
Dividend reinvestment plan
Employee stock options
Issuance of common stock
from December 31, 1995 to December 31, 1996
Mandatory sinking fund payments
Bonus issuance
Dividend reinvestment plan
Employee stock options
Issuance of common stock