股本结构
单位：万股
| 公告日期 | 2025-11-10 | 2025-11-10 | 2025-08-05 | 2025-08-05 | 2025-05-12 | 2025-05-12 |
|---|---|---|---|---|---|---|
| 证券总股本 | 1900.30 | 1898.90 | 1908.30 | 1908.00 | 1906.30 | 1898.00 |
| 普通股本 | 1900.30 | 1898.90 | 1908.30 | 1908.00 | 1906.30 | 1898.00 |
| 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 | 2025-11-03 | 2025-09-30 | 2025-07-30 | 2025-06-30 | 2025-05-05 | 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 |
|---|---|---|---|---|
| 2025-11-10 | 1900.30 | 未披露 | 定期报告 | 2025-11-03 |
| 2025-11-10 | 1898.90 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2025-09-30 |
| 2025-08-05 | 1908.30 | 未披露 | 定期报告 | 2025-07-30 |
| 2025-08-05 | 1908.00 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Issuance of common stock under stock plans, including tax effects
|
2025-06-30 |
| 2025-05-12 | 1906.30 | 未披露 | 定期报告 | 2025-05-05 |
| 2025-05-12 | 1898.00 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Issuance of common stock under stock plans, including tax effects
|
2025-03-31 |
| 2025-04-01 | 1898.10 | 未披露 | 定期报告 | 2025-03-17 |
| 2025-03-07 | 1898.10 | 未披露 | 定期报告 | 2025-03-03 |
| 2025-03-07 | 1883.80 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2024-12-31 |
| 2024-11-08 | 1899.60 | 未披露 | 定期报告 | 2024-11-04 |
| 2024-11-08 | 1898.30 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2024-09-30 |
| 2024-08-05 | 1906.00 | 未披露 | 定期报告 | 2024-07-30 |
| 2024-08-05 | 1905.60 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2024-06-30 |
| 2024-05-03 | 1910.70 | 未披露 | 定期报告 | 2024-04-29 |
| 2024-05-03 | 1924.20 | 未披露 |
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From December 31, 2023 to March 31, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2024-03-31 |
| 2024-04-02 | 1944.41 | 未披露 | 定期报告 | 2024-03-18 |
| 2024-03-08 | 1939.40 | 未披露 | 定期报告 | 2024-03-04 |
| 2024-03-08 | 1924.80 | 未披露 |
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From December 31,2022 to December 31,2023
Repurchases of common stock
Issuance of common stock under stock plans, including tax effects
|
2023-12-31 |
| 2023-11-08 | 1923.90 | 未披露 | 定期报告 | 2023-11-01 |
| 2023-11-08 | 1923.50 | 未披露 |
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From June 30, 2023 to September 30, 2023
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2023-09-30 |
| 2023-08-09 | 1921.20 | 未披露 | 定期报告 | 2023-08-02 |
| 2023-08-09 | 1918.00 | 未披露 |
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From March 31, 2023 to June 30, 2023
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2023-06-30 |
| 2023-05-09 | 1920.00 | 未披露 | 定期报告 | 2023-05-02 |
| 2023-05-09 | 1919.10 | 未披露 |
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From December 31, 2022 to March 31, 2023
Issuance of common stock under stock plans, including tax effects
|
2023-03-31 |
| 2023-03-28 | 1919.06 | 未披露 | 定期报告 | 2023-03-13 |
| 2023-03-10 | 1919.10 | 未披露 | 定期报告 | 2023-03-06 |
| 2023-03-10 | 1906.20 | 未披露 |
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From December 31, 2021 to December 31, 2022
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2022-12-31 |
| 2022-11-04 | 1905.20 | 未披露 | 定期报告 | 2022-10-31 |
| 2022-11-04 | 1904.70 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Issuance of common stock under stock plans, including tax effects
|
2022-09-30 |
| 2022-08-05 | 1898.00 | 未披露 | 定期报告 | 2022-08-01 |
| 2022-08-05 | 1885.40 | 未披露 |
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From March 31, 2022 to June 30, 2022
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2022-06-30 |
| 2022-05-06 | 1887.60 | 未披露 | 定期报告 | 2022-05-02 |
| 2022-05-06 | 1894.10 | 未披露 |
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From December 31, 2021 to March 31, 2022
Issuance of common stock under stock plans, including tax effects
|
2022-03-31 |
| 2022-03-29 | 1911.17 | 未披露 | 定期报告 | 2022-03-14 |
| 2022-03-10 | 1898.30 | 未披露 | 定期报告 | 2022-03-07 |
| 2022-03-10 | 1905.80 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2021-12-31 |
| 2021-11-05 | 1917.10 | 未披露 | 定期报告 | 2021-11-01 |
| 2021-11-05 | 1917.80 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2021-09-30 |
| 2021-08-06 | 1916.80 | 未披露 | 定期报告 | 2021-08-02 |
| 2021-08-06 | 1908.60 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2021-06-30 |
| 2021-05-06 | 1912.90 | 未披露 | 定期报告 | 2021-05-03 |
| 2021-05-06 | 1912.40 | 未披露 |
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From December 31, 2020 to March 31, 2021
Issuance of common stock under stock plans, including tax effects
|
2021-03-31 |
| 2021-03-30 | 1912.43 | 未披露 | 定期报告 | 2021-03-15 |
| 2021-03-11 | 1912.30 | 未披露 | 定期报告 | 2021-03-04 |
| 2021-03-11 | 1901.70 | 未披露 |
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From December 31, 2019 to December 31, 2020
Issuance of common stock under stock plans, including tax effects
|
2020-12-31 |
| 2020-11-06 | 1896.40 | 未披露 | 定期报告 | 2020-11-03 |
| 2020-11-06 | 1894.80 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Issuance of common stock under stock plans, net
|
2020-09-30 |
| 2020-08-10 | 1889.30 | 未披露 | 定期报告 | 2020-08-04 |
| 2020-08-10 | 1877.00 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Issuance of common stock under stock plans, net
|
2020-06-30 |
| 2020-05-11 | 1876.00 | 未披露 | 定期报告 | 2020-05-06 |
| 2020-05-11 | 1875.80 | 未披露 |
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From December 31, 2019 to March 31, 2020
Issuance of common stock under stock plans, net
|
2020-03-31 |
| 2020-03-31 | 1875.78 | 未披露 | 定期报告 | 2020-03-16 |
| 2020-03-13 | 1875.50 | 未披露 | 定期报告 | 2020-03-06 |
| 2020-03-13 | 1864.40 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Issuance of common stock under stock plans, including tax effects
|
2019-12-31 |
| 2019-11-08 | 1862.20 | 未披露 | 定期报告 | 2019-11-04 |
| 2019-11-08 | 1861.60 | 未披露 |
更多>>
from July 1, 2019 to September 30, 2019
Issuance of common stock under stock plans, net
|
2019-09-30 |
| 2019-08-06 | 1855.20 | 未披露 | 定期报告 | 2019-08-01 |
| 2019-08-06 | 1845.80 | 未披露 |
更多>>
From January 1, 2019 to June 30, 2019
Issuance of common stock under stock plans, net
|
2019-06-30 |
| 2019-05-10 | 1843.70 | 未披露 | 定期报告 | 2019-05-06 |
| 2019-05-10 | 1841.90 | 未披露 | 定期报告 | 2019-03-31 |
| 2019-04-02 | 1841.97 | 未披露 | 定期报告 | 2019-03-20 |
| 2019-03-08 | 1841.10 | 未披露 | 定期报告 | 2019-03-04 |
| 2019-03-08 | 1832.00 | 未披露 |
更多>>
from December 31, 2017 to December 31,2018
Repurchases of common stock
|
2018-12-31 |
| 2018-11-06 | 1826.40 | 未披露 | 定期报告 | 2018-11-02 |
| 2018-11-06 | 1826.20 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-08 | 1807.40 | 未披露 | 定期报告 | 2018-08-03 |
| 2018-08-08 | 1794.00 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-10 | 1798.40 | 未披露 | 定期报告 | 2018-05-07 |
| 2018-05-10 | 1801.70 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-27 | 1806.80 | 未披露 | 定期报告 | 2018-03-26 |
| 2018-03-09 | 1804.00 | 未披露 | 定期报告 | 2018-03-05 |
| 2018-03-09 | 1804.10 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Repurchases of common stock
|
2017-12-31 |
| 2017-11-07 | 1797.50 | 未披露 | 定期报告 | 2017-11-03 |
| 2017-11-07 | 1790.20 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-08 | 1773.40 | 未披露 | 定期报告 | 2017-08-04 |
| 2017-08-08 | 1761.20 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-09 | 1773.80 | 未披露 | 定期报告 | 2017-05-05 |
| 2017-05-09 | 1788.30 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-04-05 | 1824.60 | 未披露 | 定期报告 | 2017-03-27 |
| 2017-03-10 | 1808.20 | 未披露 | 定期报告 | 2017-03-06 |
| 2017-03-10 | 1836.10 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2016-12-31 |
| 2016-11-08 | 1821.80 | 未披露 | 定期报告 | 2016-11-03 |
| 2016-11-08 | 1820.70 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-09 | 1806.00 | 未披露 | 定期报告 | 2016-08-04 |
| 2016-08-09 | 1794.70 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-10 | 1782.70 | 未披露 | 定期报告 | 2016-05-04 |
| 2016-04-04 | 1780.17 | 未披露 | 定期报告 | 2016-04-01 |
| 2016-05-10 | 1780.10 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-11 | 1778.40 | 未披露 | 定期报告 | 2016-03-07 |
| 2016-03-11 | 1775.20 | 未披露 |
更多>>
From December 31, 2014 to December 31, 2015
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
|
2015-12-31 |
| 2015-11-06 | 1774.20 | 未披露 | 定期报告 | 2015-11-02 |
| 2015-11-06 | 1780.80 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-05 | 1792.00 | 未披露 | 定期报告 | 2015-07-31 |
| 2015-08-05 | 1795.50 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-07 | 1802.80 | 未披露 | 定期报告 | 2015-05-04 |
| 2015-05-07 | 1804.70 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-30 | 1805.31 | 未披露 | 定期报告 | 2015-03-26 |
| 2015-03-11 | 1805.00 | 未披露 | 定期报告 | 2015-03-06 |
| 2015-03-11 | 1815.30 | 未披露 |
更多>>
From December 31,2013 to December 31,2014
Issuance of common stock under stock plans, including tax effects
Purchase of common stock
|
2014-12-31 |
| 2014-11-05 | 1820.50 | 未披露 | 定期报告 | 2014-11-03 |
| 2014-11-05 | 1824.70 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-06 | 1824.40 | 未披露 | 定期报告 | 2014-08-01 |
| 2014-08-06 | 1845.80 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-09 | 1881.90 | 未披露 | 定期报告 | 2014-05-06 |
| 2014-05-09 | 1899.70 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-31 | 1900.96 | 未披露 | 定期报告 | 2014-03-27 |
| 2014-03-13 | 1957.00 | 未披露 | 定期报告 | 2014-03-06 |
| 2014-03-13 | 1975.60 | 未披露 |
更多>>
From December 31,2012 to December 31,2013
Issuance of common stock under stock plans, including tax effects
Retirement of treasury stock
|
2013-12-31 |
| 2013-11-12 | 1975.30 | 未披露 | 定期报告 | 2013-11-07 |
| 2013-11-12 | 1989.60 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-08-07 | 2020.30 | 未披露 | 定期报告 | 2013-08-02 |
| 2013-08-07 | 2024.10 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-05-10 | 2052.80 | 未披露 | 定期报告 | 2013-05-07 |
| 2013-05-10 | 2236.40 | 未披露 | 定期报告 | 2013-03-31 |
| 2013-04-01 | 2235.77 | 未披露 | 定期报告 | 2013-03-28 |
| 2013-03-18 | 2233.50 | 未披露 | 定期报告 | 2013-03-13 |
| 2013-03-18 | 2229.30 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Issuance of common stock under stock plans, including tax benefit
Purchase of common stock
|
2012-12-31 |
| 2012-11-09 | 2229.50 | 未披露 | 定期报告 | 2012-11-06 |
| 2012-11-09 | 2230.30 | 未披露 | 定期报告 | 2012-09-30 |
| 2012-08-09 | 2241.80 | 未披露 | 定期报告 | 2012-08-06 |
| 2012-08-09 | 2253.00 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-05-03 | 2261.00 | 未披露 | 定期报告 | 2012-05-01 |
| 2012-05-03 | 2259.60 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-03-09 | 2271.40 | 未披露 | 定期报告 | 2012-03-06 |
| 2012-03-09 | 2274.70 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Issuance of common stock under stock plans, including tax benefit
Purchase of common stock
|
2011-12-31 |
| 2011-11-04 | 2267.30 | 未披露 | 定期报告 | 2011-11-01 |
| 2011-11-04 | 2256.40 | 未披露 | 定期报告 | 2011-09-30 |
| 2011-08-04 | 2269.40 | 未披露 | 定期报告 | 2011-08-01 |
| 2011-08-04 | 2268.70 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-05-10 | 2271.00 | 未披露 | 定期报告 | 2011-05-06 |
| 2011-05-10 | 2265.30 | 未披露 | 定期报告 | 2011-03-31 |
| 2011-03-14 | 2264.60 | 未披露 | 定期报告 | 2011-03-10 |
| 2011-03-14 | 2281.20 | 未披露 |
更多>>
Issuance of common stock upon exercise of options and under stock purchase plan
|
2010-12-31 |
| 2010-11-05 | 2242.56 | 未披露 | 定期报告 | 2010-11-03 |
| 2010-11-05 | 2236.10 | 未披露 | 定期报告 | 2010-09-30 |
| 2010-08-05 | 2255.73 | 未披露 | 定期报告 | 2010-08-03 |
| 2010-08-05 | 2254.00 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-05-10 | 2254.06 | 未披露 | 定期报告 | 2010-05-07 |
| 2010-05-10 | 2251.50 | 未披露 | 定期报告 | 2010-03-31 |
| 2010-03-12 | 2244.99 | 未披露 | 定期报告 | 2010-03-10 |
| 2010-03-12 | 2233.40 | 未披露 |
更多>>
From December 31, 2008 to December 31, 2009
Issuance of common stock upon exercise of options and under stock purchase plan, including tax benefit
Purchase of common stock
|
2009-12-31 |
| 2009-03-13 | 2304.47 | 未披露 | 定期报告 | 2009-03-09 |
| 2009-03-13 | 2304.50 | 未披露 |
更多>>
From December 31, 2007 to December 31, 2008
Issuance of common stock upon exercise of options and under stock purchase plan, including tax benefit
Purchase of common stock
|
2008-12-31 |
| 2008-03-14 | 2326.28 | 未披露 | 定期报告 | 2008-03-03 |
| 2008-03-14 | 2315.30 | 未披露 |
更多>>
From December 31, 2006 to December 31, 2007
Issuance of common stock under stock option plans, including tax benefit
Purchase of common stock
|
2007-12-31 |
| 2007-11-05 | 2307.70 | 未披露 | 定期报告 | 2007-07-13 |
| 2007-11-05 | 2304.50 | 未披露 |
更多>>
From December 31, 2005 to December 31, 2006
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan, including tax benefit
Purchase of common stock
|
2006-12-31 |
| 2006-03-15 | 2135.37 | 未披露 | 定期报告 | 2006-03-10 |
| 2006-03-15 | 2102.30 | 未披露 |
更多>>
From December 31, 2004 to December 31, 2005
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan, including tax benefit
Purchase of common stock
|
2005-12-31 |
| 2005-03-14 | 2168.24 | 未披露 | 定期报告 | 2005-03-02 |
| 2005-03-14 | 2168.40 | 未披露 |
更多>>
From December 31, 2003 to December 31, 2004
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
Purchase of common stock
Structured stock repurchases,net
|
2004-12-31 |
| 2004-03-12 | 2206.72 | 未披露 | 定期报告 | 2004-03-08 |
| 2004-03-12 | 2246.10 | 未披露 |
更多>>
From December 31, 2002 to December 31, 2003
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
Purchase of common stock
|
2003-12-31 |
| 2003-03-31 | 2248.68 | 未披露 | 定期报告 | 2003-03-27 |
| 2003-03-31 | 2284.10 | 未披露 |
更多>>
From December 31, 2001 to December 31, 2002
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan, including tax benefit
Purchase of common stock
|
2002-12-31 |
| 2002-03-20 | 2327.46 | 未披露 | 定期报告 | 2002-03-18 |
| 2002-03-20 | 2305.30 | 未披露 |
更多>>
From December 31, 2000 to December 31, 2001
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
|
2001-12-31 |
| 2001-04-02 | 2223.85 | 未披露 | 定期报告 | 2001-03-23 |
| 2001-04-02 | 2181.20 | 未披露 |
更多>>
From December 31, 1999 to December 31, 2000
Issuance of common stock in public offering, net of issuance costs of approximately $65
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
|
2000-12-31 |
| 2000-03-10 | 2054.57 | 未披露 | 定期报告 | 2000-03-09 |
| 2000-03-10 | 1940.81 | 未披露 |
更多>>
From December 31, 1998 to December 31, 1999
All share and per share amounts contained herein give effect to our two-for-one stock split effected on February 7, 2000. On March 9, 2000
Issuance of common stock related to acquisition
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan
|
1999-12-31 |
| 1999-03-31 | 878.75 | 未披露 | 定期报告 | 1999-03-05 |
| 1999-03-31 | 865.42 | 未披露 |
更多>>
From December 31, 1997 to December 31, 1998
Issuance of common stock under stock option plans
Issuance of common stock under employee stock purchase plan
|
1998-12-31 |
| 1998-03-30 | 844.14 | 未披露 | 定期报告 | 1998-03-06 |
| 1998-03-30 | 839.18 | 未披露 |
更多>>
From December 31, 1996 to December 31, 1997
Issuance of common stock under stock option plans
Issuance of common stock under employee stock purchase plan
|
1997-12-31 |
| 1997-03-31 | 830.11 | 未披露 | 定期报告 | 1997-03-21 |
| 1997-03-31 | 830.00 | 未披露 |
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From December 31, 1995 to December 31, 1996
Issuance of common stock in initial public offering,net of issuance costs of $3,565,947
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1996-12-31 |
From June 30, 2025 to September 30, 2025
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From March 31, 2025 to June 30, 2025
Issuance of common stock under stock plans, including tax effects
From December 31, 2024 to March 31, 2025
Issuance of common stock under stock plans, including tax effects
From December 31, 2023 to December 31, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From June 30, 2024 to September 30, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From March 31, 2024 to June 30, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31, 2023 to March 31, 2024
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31,2022 to December 31,2023
Repurchases of common stock
Issuance of common stock under stock plans, including tax effects
From June 30, 2023 to September 30, 2023
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From March 31, 2023 to June 30, 2023
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31, 2022 to March 31, 2023
Issuance of common stock under stock plans, including tax effects
From December 31, 2021 to December 31, 2022
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From June 30, 2022 to September 30, 2022
Issuance of common stock under stock plans, including tax effects
From March 31, 2022 to June 30, 2022
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31, 2021 to March 31, 2022
Issuance of common stock under stock plans, including tax effects
From December 31, 2020 to December 31, 2021
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From June 30, 2021 to September 30, 2021
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From March 31, 2021 to June 30, 2021
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31, 2020 to March 31, 2021
Issuance of common stock under stock plans, including tax effects
From December 31, 2019 to December 31, 2020
Issuance of common stock under stock plans, including tax effects
From June 30, 2020 to September 30, 2020
Issuance of common stock under stock plans, net
From March 31, 2020 to June 30, 2020
Issuance of common stock under stock plans, net
From December 31, 2019 to March 31, 2020
Issuance of common stock under stock plans, net
from December 31, 2018 to December 31, 2019
Issuance of common stock under stock plans, including tax effects
from July 1, 2019 to September 30, 2019
Issuance of common stock under stock plans, net
From January 1, 2019 to June 30, 2019
Issuance of common stock under stock plans, net
from December 31, 2017 to December 31,2018
Repurchases of common stock
from December 31, 2016 to December 31, 2017
Repurchases of common stock
from December 31, 2015 to December 31, 2016
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31, 2014 to December 31, 2015
Issuance of common stock under stock plans, including tax effects
Repurchases of common stock
From December 31,2013 to December 31,2014
Issuance of common stock under stock plans, including tax effects
Purchase of common stock
From December 31,2012 to December 31,2013
Issuance of common stock under stock plans, including tax effects
Retirement of treasury stock
from December 31, 2011 to December 31, 2012
Issuance of common stock under stock plans, including tax benefit
Purchase of common stock
from December 31, 2010 to December 31, 2011
Issuance of common stock under stock plans, including tax benefit
Purchase of common stock
Issuance of common stock upon exercise of options and under stock purchase plan
From December 31, 2008 to December 31, 2009
Issuance of common stock upon exercise of options and under stock purchase plan, including tax benefit
Purchase of common stock
From December 31, 2007 to December 31, 2008
Issuance of common stock upon exercise of options and under stock purchase plan, including tax benefit
Purchase of common stock
From December 31, 2006 to December 31, 2007
Issuance of common stock under stock option plans, including tax benefit
Purchase of common stock
From December 31, 2005 to December 31, 2006
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan, including tax benefit
Purchase of common stock
From December 31, 2004 to December 31, 2005
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan, including tax benefit
Purchase of common stock
From December 31, 2003 to December 31, 2004
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
Purchase of common stock
Structured stock repurchases,net
From December 31, 2002 to December 31, 2003
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
Purchase of common stock
From December 31, 2001 to December 31, 2002
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan, including tax benefit
Purchase of common stock
From December 31, 2000 to December 31, 2001
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
From December 31, 1999 to December 31, 2000
Issuance of common stock in public offering, net of issuance costs of approximately $65
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan,including tax benefit
From December 31, 1998 to December 31, 1999
All share and per share amounts contained herein give effect to our two-for-one stock split effected on February 7, 2000. On March 9, 2000
Issuance of common stock related to acquisition
Issuance of common stock under stock option plans, including tax benefit
Issuance of common stock under employee stock purchase plan
From December 31, 1997 to December 31, 1998
Issuance of common stock under stock option plans
Issuance of common stock under employee stock purchase plan
From December 31, 1996 to December 31, 1997
Issuance of common stock under stock option plans
Issuance of common stock under employee stock purchase plan
From December 31, 1995 to December 31, 1996
Issuance of common stock in initial public offering,net of issuance costs of $3,565,947