股本结构
单位：万股
| 公告日期 | 2026-08-05 | 2026-04-29 | 2026-03-26 | 2026-02-12 | 2026-02-12 | 2025-10-30 |
|---|---|---|---|---|---|---|
| 证券总股本 | 2083.37 | 2080.15 | 2080.13 | 2073.62 | 2073.50 | 2073.27 |
| 普通股本 | 2083.37 | 2080.15 | 2080.13 | 2073.62 | 2073.50 | 2073.27 |
| 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 | 2026-07-03 | 2026-04-03 | 2026-03-12 | 2026-01-31 | 2025-12-31 | 2025-09-26 |
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 |
|---|---|---|---|---|
| 2026-08-05 | 2083.37 | 未披露 |
更多>>
From April 3, 2026 to July 3,2026
Directors’ deferred compensation
Payments of withholding taxes for stock-based compensation awards
Stock-based compensation activity
|
2026-07-03 |
| 2026-04-29 | 2080.15 | 未披露 |
更多>>
From December 31, 2025 to April 3, 2026
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
|
2026-04-03 |
| 2026-03-26 | 2080.13 | 未披露 | 定期报告 | 2026-03-12 |
| 2026-02-12 | 2073.62 | 未披露 | 定期报告 | 2026-01-31 |
| 2026-02-12 | 2073.50 | 未披露 |
更多>>
From December 31, 2024 to December 31, 2025
Stock-based compensation activity
Repurchase of common stock
Payments for withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2025-12-31 |
| 2025-10-30 | 2073.27 | 未披露 |
更多>>
From December 31, 2024 to September 26, 2025
Stock-based compensation activity
Repurchase of common stock
Payments of withholding taxes for stock-based compensation awards
Directors' deferred compensation
|
2025-09-26 |
| 2025-07-30 | 2072.69 | 未披露 |
更多>>
From March 28, 2025 to June 27, 2025
Stock-based compensation activity
Repurchase of common stock
Payments of withholding taxes for stock-based compensation awards
Directors' deferred compensation
|
2025-06-27 |
| 2025-05-01 | 2714.80 | 未披露 |
更多>>
From December 31,2024 to March 28,2025
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’deferred compensation
|
2025-03-28 |
| 2025-03-27 | 2081.43 | 未披露 | 定期报告 | 2025-03-12 |
| 2025-02-19 | 2076.52 | 未披露 | 定期报告 | 2025-01-31 |
| 2025-02-19 | 2076.40 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Payments for withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Stock-based compensation activity
|
2024-12-31 |
| 2024-10-30 | 2075.13 | 未披露 |
更多>>
From June 28, 2024 to September 27, 2024
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
|
2024-09-27 |
| 2024-08-06 | 2074.70 | 未披露 |
更多>>
From March 29, 2024 to June 28, 2024
Directors’ deferred compensation
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
|
2024-06-28 |
| 2024-03-26 | 2073.09 | 未披露 | 定期报告 | 2024-03-15 |
| 2024-02-15 | 2064.60 | 未披露 | 定期报告 | 2024-01-31 |
| 2024-02-15 | 2064.60 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Stock-based compensation activity
Payments for withholding taxes for stock-based compensation awards
Directors’deferred compensation
|
2023-12-31 |
| 2023-11-01 | 2064.24 | 未披露 |
更多>>
From June 30, 2023 to September 29, 2023
Payments of withholding taxes for stock-based compensation awards
Stock-based compensation activity
|
2023-09-29 |
| 2023-08-02 | 2063.68 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
|
2023-06-30 |
| 2023-05-03 | 2060.87 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2023-03-31 |
| 2023-04-04 | 2060.86 | 未披露 | 定期报告 | 2023-03-20 |
| 2023-02-16 | 2054.35 | 未披露 | 定期报告 | 2023-01-31 |
| 2023-02-16 | 2054.30 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Payments for withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Stock-based compensation activity
|
2022-12-31 |
| 2022-11-02 | 2052.81 | 未披露 |
更多>>
From July 1, 2022 to September 30, 2022
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Stock-based compensation activity
|
2022-09-30 |
| 2022-08-03 | 2052.37 | 未披露 |
更多>>
From April 1, 2022 to July 1, 2022
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2022-07-01 |
| 2022-04-28 | 2051.14 | 未披露 |
更多>>
From December 31, 2021 to April 1, 2022
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2022-04-01 |
| 2022-03-24 | 2045.00 | 未披露 | 定期报告 | 2022-03-07 |
| 2022-02-17 | 2044.82 | 未披露 | 定期报告 | 2022-01-31 |
| 2022-02-17 | 2044.80 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Stock-based compensation activity
Payments for withholding taxes for stock-based compensation awards
Directors' deferred compensation
|
2021-12-31 |
| 2021-11-02 | 2043.92 | 未披露 |
更多>>
From July 2, 2021 to October 1, 2021
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2021-10-01 |
| 2021-08-03 | 2043.76 | 未披露 |
更多>>
From April 2, 2021 to July 2, 2021
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2021-07-02 |
| 2021-04-29 | 2041.37 | 未披露 |
更多>>
from December 31, 2020 to April 2, 2021
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2021-04-02 |
| 2021-03-25 | 2039.59 | 未披露 | 定期报告 | 2021-03-08 |
| 2021-02-18 | 2033.01 | 未披露 | 定期报告 | 2021-01-29 |
| 2021-02-18 | 2032.80 | 未披露 |
更多>>
From December 31,2019 to December 31,2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Repurchase of shares
|
2020-12-31 |
| 2020-10-22 | 2032.73 | 未披露 |
更多>>
From June 26, 2020 to September 25, 2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2020-09-25 |
| 2020-07-23 | 2032.22 | 未披露 |
更多>>
From March 27, 2020 to June 26, 2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’deferred compensation
|
2020-06-26 |
| 2020-04-23 | 2030.98 | 未披露 |
更多>>
From December 31, 2019 to March 27, 2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Repurchase of shares
Directors’ deferred compensation
|
2020-03-27 |
| 2020-03-30 | 2034.04 | 未披露 | 定期报告 | 2020-03-16 |
| 2020-02-13 | 2040.53 | 未披露 | 定期报告 | 2020-01-31 |
| 2020-02-13 | 2040.40 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Stock-based compensation activity
Payments for withholding taxes for stock-based compensation awards
Repurchase of shares
Directors’ deferred compensation
|
2019-12-31 |
| 2019-10-24 | 2040.30 | 未披露 |
更多>>
from June 28, 2019 to September 27, 2019
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2019-09-27 |
| 2019-07-25 | 2039.94 | 未披露 |
更多>>
from March 29, 2019 to June 28, 2019
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
|
2019-06-28 |
| 2019-05-02 | 2035.47 | 未披露 |
更多>>
from December 31, 2018 to March 29, 2019
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Repurchase of shares
|
2019-03-29 |
| 2019-03-25 | 2031.71 | 未披露 | 定期报告 | 2019-03-11 |
| 2019-02-14 | 2023.81 | 未披露 | 定期报告 | 2019-02-01 |
| 2019-02-14 | 2024.20 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Stock-based compensation activity
Repurchase of 10 shares
Directors’ deferred compensation
|
2018-12-31 |
| 2018-10-25 | 2024.43 | 未披露 | 定期报告 | 2018-09-28 |
| 2018-07-26 | 2023.59 | 未披露 | 定期报告 | 2018-06-29 |
| 2018-04-26 | 2019.06 | 未披露 | 定期报告 | 2018-03-30 |
| 2018-03-26 | 2015.42 | 未披露 | 定期报告 | 2018-03-07 |
| 2018-02-15 | 2011.61 | 未披露 | 定期报告 | 2018-02-02 |
| 2018-02-15 | 2010.60 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Stock-based compensation activity
Directors’ deferred compensation
Repurchase of 32 shares
|
2017-12-31 |
| 2017-10-26 | 2004.35 | 未披露 | 定期报告 | 2017-09-29 |
| 2017-07-27 | 2003.87 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-04-28 | 1998.65 | 未披露 | 定期报告 | 2017-04-19 |
| 2017-03-27 | 2000.53 | 未披露 | 定期报告 | 2017-03-07 |
| 2017-02-17 | 1995.02 | 未披露 | 定期报告 | 2017-02-10 |
| 2017-02-17 | 1994.80 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Stock-based compensation expense
Repurchase of 147 shares
Directors’ deferred compensation
|
2016-12-31 |
| 2016-10-27 | 1993.79 | 未披露 | 定期报告 | 2016-10-21 |
| 2016-07-28 | 1996.73 | 未披露 | 定期报告 | 2016-07-22 |
| 2016-05-09 | 2002.72 | 未披露 | 定期报告 | 2016-05-04 |
| 2016-04-29 | 2003.19 | 未披露 | 定期报告 | 2016-04-21 |
| 2016-03-28 | 2002.72 | 未披露 | 定期报告 | 2016-03-07 |
| 2016-02-25 | 2000.70 | 未披露 | 定期报告 | 2016-02-18 |
| 2016-02-25 | 2000.30 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Directors’ deferred compensation
Repurchase of 212 shares
|
2015-12-31 |
| 2015-11-02 | 2000.21 | 未披露 | 定期报告 | 2015-10-23 |
| 2015-07-31 | 2012.48 | 未披露 | 定期报告 | 2015-07-23 |
| 2015-05-01 | 2015.12 | 未披露 | 定期报告 | 2015-04-23 |
| 2015-03-26 | 2045.68 | 未披露 | 定期报告 | 2015-03-09 |
| 2015-02-27 | 2010.06 | 未披露 | 定期报告 | 2015-02-20 |
| 2015-02-27 | 2021.04 | 未披露 |
更多>>
From December 31,2013 to December 31,2014
Proceeds from exercise of 20 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
|
2014-12-31 |
| 2014-10-30 | 2015.47 | 未披露 | 定期报告 | 2014-10-15 |
| 2014-08-01 | 2064.96 | 未披露 | 定期报告 | 2014-07-22 |
| 2014-05-01 | 2059.42 | 未披露 | 定期报告 | 2014-04-23 |
| 2014-04-01 | 2091.72 | 未披露 | 定期报告 | 2014-03-10 |
| 2014-03-14 | 2059.57 | 未披露 | 定期报告 | 2014-02-21 |
| 2014-03-14 | 2089.00 | 未披露 |
更多>>
From December 31,2012 to December 31,2013
Proceeds from exercise of 74 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Directors’ deferred compensation
|
2013-12-31 |
| 2013-11-01 | 2061.95 | 未披露 | 定期报告 | 2013-10-23 |
| 2013-08-06 | 2058.54 | 未披露 | 定期报告 | 2013-07-26 |
| 2013-04-30 | 2053.70 | 未披露 | 定期报告 | 2013-04-23 |
| 2013-03-26 | 2076.60 | 未披露 | 定期报告 | 2013-03-11 |
| 2013-03-08 | 2046.03 | 未披露 | 定期报告 | 2013-02-20 |
| 2013-03-08 | 2044.30 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Proceeds from exercise of 16 shares under option plans
Income tax benefit from stock compensation realization
Repurchase of 6 shares
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
|
2012-12-31 |
| 2012-11-02 | 2043.26 | 未披露 | 定期报告 | 2012-10-26 |
| 2012-08-08 | 2043.61 | 未披露 | 定期报告 | 2012-07-27 |
| 2012-05-01 | 2042.07 | 未披露 | 定期报告 | 2012-04-25 |
| 2012-02-29 | 2041.22 | 未披露 | 定期报告 | 2012-02-14 |
| 2012-02-29 | 2030.80 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Proceeds from exercise of 53 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Repurchase of 132 shares
Directors’ deferred compensation
|
2011-12-31 |
| 2011-11-07 | 2030.59 | 未披露 | 定期报告 | 2011-10-26 |
| 2011-08-09 | 2043.74 | 未披露 | 定期报告 | 2011-07-29 |
| 2011-04-29 | 2040.69 | 未披露 | 定期报告 | 2011-04-25 |
| 2011-03-09 | 2035.78 | 未披露 | 定期报告 | 2011-02-21 |
| 2011-03-09 | 2032.00 | 未披露 |
更多>>
from December 31, 2009 to December 31, 2010
Proceeds from exercise of 154 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Other equity transactions
|
2010-12-31 |
| 2010-11-05 | 2020.75 | 未披露 | 定期报告 | 2010-10-29 |
| 2010-08-09 | 2035.09 | 未披露 | 定期报告 | 2010-07-23 |
| 2010-04-30 | 2027.75 | 未披露 | 定期报告 | 2010-04-23 |
| 2010-03-08 | 2027.71 | 未披露 | 定期报告 | 2010-02-22 |
| 2010-03-08 | 2023.40 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Proceeds from exercise of 32,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Other equity transactions
|
2009-12-31 |
| 2009-02-27 | 2010.90 | 未披露 | 定期报告 | 2009-02-13 |
| 2009-02-27 | 2025.10 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Proceeds from exercise of 12,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Repurchase of 300,000 shares
|
2008-12-31 |
| 2008-02-29 | 2038.94 | 未披露 | 定期报告 | 2008-02-15 |
| 2008-02-29 | 2047.10 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Proceeds from exercise of 296,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Other equity transactions
|
2007-12-31 |
| 2007-03-15 | 2036.91 | 未披露 | 定期报告 | 2007-03-02 |
| 2007-03-15 | 2010.50 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Proceeds from exercise of 841,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Other equity transactions
|
2006-12-31 |
| 2006-03-16 | 1927.89 | 未披露 | 定期报告 | 2006-03-03 |
| 2006-03-16 | 1924.13 | 未披露 |
更多>>
from DECEMBER 31, 2004 to DECEMBER 31, 2005
Proceeds from sale of 29,955 shares under option plans
Other equity transactions
Forfeiture of restricted stock
|
2005-12-31 |
| 2005-03-14 | 1921.28 | 未披露 | 定期报告 | 2005-03-11 |
| 2005-03-14 | 1921.95 | 未披露 |
更多>>
from DECEMBER 31, 2003 to DECEMBER 31, 2004
Proceeds from sale of 228,298 shares under option plans
Proceeds from stock offering of 2,250,000 shares
Exercise of 115,000 warrants
Other equity transactions
Forfeiture of restricted stock
|
2004-12-31 |
| 2004-03-15 | 1671.19 | 未披露 | 定期报告 | 2004-03-05 |
| 2004-03-15 | 1662.54 | 未披露 |
更多>>
from DECEMBER 31, 2002 to DECEMBER 31, 2003
Proceeds from sale of 1,900 shares under option plans
Income tax benefit from employees' stock options
Other equity transactions
Forfeiture of restricted stock
|
2003-12-31 |
| 2003-03-31 | 1663.38 | 未披露 | 定期报告 | 2003-03-10 |
| 2003-03-31 | 1663.63 | 未披露 |
更多>>
from DECEMBER 31, 2001 to DECEMBER 31, 2002
Other equity transactions
Forfeiture of restricted stock
|
2002-12-31 |
| 2002-03-27 | 1663.70 | 未披露 | 定期报告 | 2002-03-11 |
| 2002-03-27 | 1660.92 | 未披露 |
更多>>
from DECEMBER 31, 2000 to DECEMBER 31, 2001
Proceeds from sale of 95,230 shares under option plans
Income tax benefit from employees' stock options
Other equity transactions
Forfeiture of restricted stock
|
2001-12-31 |
| 2001-03-29 | 1653.98 | 未披露 | 定期报告 | 2001-03-09 |
| 2001-03-29 | 1651.38 | 未披露 |
更多>>
from DECEMBER 31, 1999 to DECEMBER 31, 2000
Transfer additional paid-in-capital to common stock
Proceeds from sale of 218,380 shares under option plans
Income tax benefit from employees stock options
Other equity transactions
Forfeiture of restricted stock
|
2000-12-31 |
| 2001-03-29 | 1632.76 | 未披露 |
更多>>
from DECEMBER 31, 1998 to DECEMBER 31, 1999
Proceeds from sale of 12,220 shares under option plans
Other equity transactions
Forfeiture of restricted stock
|
1999-12-31 |
From April 3, 2026 to July 3,2026
Directors’ deferred compensation
Payments of withholding taxes for stock-based compensation awards
Stock-based compensation activity
From December 31, 2025 to April 3, 2026
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
From December 31, 2024 to December 31, 2025
Stock-based compensation activity
Repurchase of common stock
Payments for withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From December 31, 2024 to September 26, 2025
Stock-based compensation activity
Repurchase of common stock
Payments of withholding taxes for stock-based compensation awards
Directors' deferred compensation
From March 28, 2025 to June 27, 2025
Stock-based compensation activity
Repurchase of common stock
Payments of withholding taxes for stock-based compensation awards
Directors' deferred compensation
From December 31,2024 to March 28,2025
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’deferred compensation
From December 31, 2023 to December 31, 2024
Payments for withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Stock-based compensation activity
From June 28, 2024 to September 27, 2024
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
From March 29, 2024 to June 28, 2024
Directors’ deferred compensation
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
From December 31, 2022 to December 31, 2023
Stock-based compensation activity
Payments for withholding taxes for stock-based compensation awards
Directors’deferred compensation
From June 30, 2023 to September 29, 2023
Payments of withholding taxes for stock-based compensation awards
Stock-based compensation activity
From March 31, 2023 to June 30, 2023
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
From December 31, 2022 to March 31, 2023
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From December 31, 2021 to December 31, 2022
Payments for withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Stock-based compensation activity
From July 1, 2022 to September 30, 2022
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Stock-based compensation activity
From April 1, 2022 to July 1, 2022
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From December 31, 2021 to April 1, 2022
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From December 31, 2020 to December 31, 2021
Stock-based compensation activity
Payments for withholding taxes for stock-based compensation awards
Directors' deferred compensation
From July 2, 2021 to October 1, 2021
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From April 2, 2021 to July 2, 2021
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
from December 31, 2020 to April 2, 2021
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From December 31,2019 to December 31,2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
Repurchase of shares
From June 26, 2020 to September 25, 2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
From March 27, 2020 to June 26, 2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’deferred compensation
From December 31, 2019 to March 27, 2020
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Repurchase of shares
Directors’ deferred compensation
from December 31, 2018 to December 31, 2019
Stock-based compensation activity
Payments for withholding taxes for stock-based compensation awards
Repurchase of shares
Directors’ deferred compensation
from June 28, 2019 to September 27, 2019
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
from March 29, 2019 to June 28, 2019
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Directors’ deferred compensation
from December 31, 2018 to March 29, 2019
Stock-based compensation activity
Payments of withholding taxes for stock-based compensation awards
Repurchase of shares
from December 31, 2017 to December 31, 2018
Stock-based compensation activity
Repurchase of 10 shares
Directors’ deferred compensation
from December 31, 2016 to December 31, 2017
Stock-based compensation activity
Directors’ deferred compensation
Repurchase of 32 shares
from December 31, 2015 to December 31, 2016
Stock-based compensation expense
Repurchase of 147 shares
Directors’ deferred compensation
from December 31, 2014 to December 31, 2015
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Directors’ deferred compensation
Repurchase of 212 shares
From December 31,2013 to December 31,2014
Proceeds from exercise of 20 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
From December 31,2012 to December 31,2013
Proceeds from exercise of 74 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Directors’ deferred compensation
from December 31, 2011 to December 31, 2012
Proceeds from exercise of 16 shares under option plans
Income tax benefit from stock compensation realization
Repurchase of 6 shares
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
from December 31, 2010 to December 31, 2011
Proceeds from exercise of 53 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Repurchase of 132 shares
Directors’ deferred compensation
from December 31, 2009 to December 31, 2010
Proceeds from exercise of 154 shares under option plans
Income tax benefit from stock compensation realization
Stock-based compensation expense
Shares withheld for employee taxes on equity awards
Other equity transactions
from December 31, 2008 to December 31, 2009
Proceeds from exercise of 32,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Other equity transactions
from December 31, 2007 to December 31, 2008
Proceeds from exercise of 12,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Repurchase of 300,000 shares
from December 31, 2006 to December 31, 2007
Proceeds from exercise of 296,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Other equity transactions
from December 31, 2005 to December 31, 2006
Proceeds from exercise of 841,000 shares under option plans
Income tax benefit from exercise of stock options
Stock-based compensation expense
Other equity transactions
from DECEMBER 31, 2004 to DECEMBER 31, 2005
Proceeds from sale of 29,955 shares under option plans
Other equity transactions
Forfeiture of restricted stock
from DECEMBER 31, 2003 to DECEMBER 31, 2004
Proceeds from sale of 228,298 shares under option plans
Proceeds from stock offering of 2,250,000 shares
Exercise of 115,000 warrants
Other equity transactions
Forfeiture of restricted stock
from DECEMBER 31, 2002 to DECEMBER 31, 2003
Proceeds from sale of 1,900 shares under option plans
Income tax benefit from employees' stock options
Other equity transactions
Forfeiture of restricted stock
from DECEMBER 31, 2001 to DECEMBER 31, 2002
Other equity transactions
Forfeiture of restricted stock
from DECEMBER 31, 2000 to DECEMBER 31, 2001
Proceeds from sale of 95,230 shares under option plans
Income tax benefit from employees' stock options
Other equity transactions
Forfeiture of restricted stock
from DECEMBER 31, 1999 to DECEMBER 31, 2000
Transfer additional paid-in-capital to common stock
Proceeds from sale of 218,380 shares under option plans
Income tax benefit from employees stock options
Other equity transactions
Forfeiture of restricted stock
from DECEMBER 31, 1998 to DECEMBER 31, 1999
Proceeds from sale of 12,220 shares under option plans
Other equity transactions
Forfeiture of restricted stock