股本结构
单位：万股
| 公告日期 | 2025-10-31 | 2025-10-31 | 2025-07-25 | 2025-07-25 | 2025-04-25 | 2025-04-25 |
|---|---|---|---|---|---|---|
| 证券总股本 | 4010.39 | 4013.97 | 4037.83 | 4037.03 | 4046.72 | 4055.92 |
| 普通股本 | 4010.39 | 4013.97 | 4037.83 | 4037.03 | 4046.72 | 4055.92 |
| 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 | 2025-10-24 | 2025-09-30 | 2025-07-18 | 2025-06-30 | 2025-04-18 | 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 |
|---|---|---|---|---|
| 2025-10-31 | 4010.39 | 未披露 | 定期报告 | 2025-10-24 |
| 2025-10-31 | 4013.97 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2025-09-30 |
| 2025-07-25 | 4037.83 | 未披露 | 定期报告 | 2025-07-18 |
| 2025-07-25 | 4037.03 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Stock grants to Company directors
Treasury stock purchases
|
2025-06-30 |
| 2025-04-25 | 4046.72 | 未披露 | 定期报告 | 2025-04-18 |
| 2025-04-25 | 4055.92 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Employee income tax paid on vested equity awards
Vested employee stock awards
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2025-03-31 |
| 2025-03-25 | 4062.18 | 未披露 | 定期报告 | 2025-03-06 |
| 2025-02-13 | 4033.00 | 未披露 | 定期报告 | 2025-02-07 |
| 2025-02-13 | 4032.84 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Treasury stock purchases
Vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
Issuance of common stock upon warrant exercise, net
|
2024-12-31 |
| 2024-11-01 | 4032.78 | 未披露 | 定期报告 | 2024-10-25 |
| 2024-11-01 | 4033.82 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Sale of common stock under employee stock purchase plan
Issuance of common stock upon warrant exercise, net
Treasury stock purchases
|
2024-09-30 |
| 2024-07-26 | 4010.37 | 未披露 | 定期报告 | 2024-07-19 |
| 2024-07-26 | 4009.37 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Stock awards
Treasury stock purchases
|
2024-06-30 |
| 2024-04-26 | 4025.95 | 未披露 | 定期报告 | 2024-04-19 |
| 2024-04-26 | 4026.93 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
Treasury stock purchases
|
2024-03-31 |
| 2024-03-26 | 4036.34 | 未披露 | 定期报告 | 2024-03-07 |
| 2024-02-15 | 4022.93 | 未披露 | 定期报告 | 2024-02-09 |
| 2024-02-15 | 4022.50 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Exercise of common stock options and vested employee stock award
Employee income tax paid on vested equity awards
Sale of common stock under employee stock purchase plan
|
2023-12-31 |
| 2023-10-27 | 4094.37 | 未披露 | 定期报告 | 2023-10-20 |
| 2023-10-27 | 4122.07 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2023-09-30 |
| 2023-08-03 | 4206.28 | 未披露 | 定期报告 | 2023-07-28 |
| 2023-08-03 | 4237.29 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Treasury stock purchases
|
2023-06-30 |
| 2023-05-04 | 4443.44 | 未披露 | 定期报告 | 2023-04-28 |
| 2023-05-04 | 4570.76 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Sale of common stock under employee stock purchase plan
Treasury stock purchases
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
|
2023-03-31 |
| 2023-03-23 | 4881.95 | 未披露 | 定期报告 | 2023-03-02 |
| 2023-02-16 | 5044.12 | 未披露 | 定期报告 | 2023-02-10 |
| 2023-02-16 | 5059.84 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Sale of common stock under employee stock purchase plan
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
|
2022-12-31 |
| 2022-11-04 | 5059.84 | 未披露 | 定期报告 | 2022-10-28 |
| 2022-11-04 | 5059.71 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Exercise of common stock options and vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
|
2022-09-30 |
| 2022-08-04 | 5058.76 | 未披露 | 定期报告 | 2022-07-29 |
| 2022-05-05 | 5052.18 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
Sale of common stock under employee stock purchase plan
|
2022-03-31 |
| 2022-03-24 | 5052.18 | 未披露 | 定期报告 | 2022-03-03 |
| 2022-02-17 | 5051.98 | 未披露 | 定期报告 | 2022-02-14 |
| 2022-02-17 | 5037.99 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
Sale of common stock under employee stock purchase plan
|
2021-12-31 |
| 2021-11-04 | 5037.99 | 未披露 | 定期报告 | 2021-10-29 |
| 2021-11-04 | 5037.98 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Sale of common stock under employee stock purchase plan
|
2021-09-30 |
| 2021-08-09 | 5037.98 | 未披露 | 定期报告 | 2021-07-30 |
| 2021-05-06 | 5034.56 | 未披露 |
更多>>
From December 31, 2020 to March 31, 2021
Exercise of common stock options and vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
|
2021-03-31 |
| 2021-03-30 | 5034.56 | 未披露 | 定期报告 | 2021-03-23 |
| 2021-03-18 | 5030.45 | 未披露 | 定期报告 | 2021-03-04 |
| 2021-02-22 | 5034.41 | 未披露 | 定期报告 | 2021-02-16 |
| 2021-02-22 | 5018.14 | 未披露 |
更多>>
From December 31,2019 to December 31,2020
Exercise of common stock options and vested restricted stock units
Sale of common stock under employee stock purchase plan
Shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
|
2020-12-31 |
| 2020-11-05 | 5014.02 | 未披露 | 定期报告 | 2020-10-30 |
| 2020-11-05 | 5018.14 | 未披露 |
更多>>
From June 30, 2020 to July 31, 2020
Sale of common stock under employee stock purchase plan
|
2020-07-31 |
| 2020-05-08 | 5014.02 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Exercise of common stock options and stock issued under equity award plan
Sale of common stock under employee stock purchase plan
Treasury shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
|
2020-03-31 |
| 2020-03-13 | 5025.74 | 未披露 | 定期报告 | 2020-03-04 |
| 2020-02-18 | 5047.43 | 未披露 | 定期报告 | 2020-02-12 |
| 2020-02-18 | 5032.28 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Treasury shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
Sale of common stock under employee stock purchase plan
Exercise of common stock options and vested restricted stock units
Common stock purchased and cancelled
|
2019-12-31 |
| 2019-11-05 | 5042.14 | 未披露 | 定期报告 | 2019-10-31 |
| 2019-11-05 | 5049.01 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Exercise of common stock options and stock issued under equity award plan
Sale of common stock under employee stock purchase plan
|
2019-09-30 |
| 2019-08-05 | 5091.88 | 未披露 | 定期报告 | 2019-07-31 |
| 2019-08-05 | 5089.20 | 未披露 |
更多>>
from April 1, 2019 to June 30,2019
Exercise of common stock options and stock issued under equity award plan
Common stock purchased and cancelled
Treasury stock purchases
|
2019-06-30 |
| 2019-05-06 | 5123.34 | 未披露 | 定期报告 | 2019-04-30 |
| 2019-05-06 | 5129.84 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Exercise of common stock options and stock issued under equity award plan
Sale of common stock under employee stock purchase plan
Treasury shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
|
2019-03-31 |
| 2019-03-22 | 5164.78 | 未披露 | 定期报告 | 2019-03-04 |
| 2019-02-21 | 5163.60 | 未披露 | 定期报告 | 2019-02-12 |
| 2019-02-21 | 5138.83 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Exercise of common stock options and vested restricted stock units
Treasury shares acquired from vested employee stock awards for income tax withholdings
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2018-12-31 |
| 2018-11-06 | 5189.53 | 未披露 | 定期报告 | 2018-10-31 |
| 2018-11-06 | 5192.84 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-07 | 5207.82 | 未披露 | 定期报告 | 2018-07-31 |
| 2018-05-07 | 5204.58 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-22 | 5216.51 | 未披露 | 定期报告 | 2018-03-05 |
| 2018-02-26 | 5178.40 | 未披露 | 定期报告 | 2018-02-16 |
| 2018-02-26 | 5175.46 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Exercise of common stock options and vested restricted stock units
Treasury shares withheld for the payment of taxes
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2017-12-31 |
| 2017-11-03 | 5184.25 | 未披露 | 定期报告 | 2017-10-31 |
| 2017-11-03 | 5184.26 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-04 | 5184.08 | 未披露 | 定期报告 | 2017-07-31 |
| 2017-08-04 | 5176.61 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-08 | 5173.83 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-03-22 | 5181.84 | 未披露 | 定期报告 | 2017-03-06 |
| 2017-02-27 | 5184.57 | 未披露 | 定期报告 | 2017-02-17 |
| 2017-02-27 | 5176.59 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Exercise of common stock options and vested restricted stock units
Sale of common stock under employee stock purchase plan
|
2016-12-31 |
| 2016-11-04 | 5174.17 | 未披露 | 定期报告 | 2016-10-31 |
| 2016-11-04 | 5174.42 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-05 | 5154.14 | 未披露 | 定期报告 | 2016-07-29 |
| 2016-08-05 | 5148.08 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-06 | 5138.74 | 未披露 | 定期报告 | 2016-04-29 |
| 2016-05-06 | 5137.34 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-17 | 5135.30 | 未披露 | 定期报告 | 2016-03-04 |
| 2016-02-26 | 5112.75 | 未披露 | 定期报告 | 2016-02-16 |
| 2016-02-26 | 5100.50 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2015-12-31 |
| 2015-11-05 | 5075.23 | 未披露 | 定期报告 | 2015-10-31 |
| 2015-11-05 | 5068.99 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-05 | 5060.27 | 未披露 | 定期报告 | 2015-07-31 |
| 2015-08-05 | 5048.14 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-07 | 5167.58 | 未披露 | 定期报告 | 2015-05-01 |
| 2015-05-07 | 5165.81 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-18 | 5159.19 | 未披露 | 定期报告 | 2015-03-04 |
| 2015-02-18 | 5133.76 | 未披露 | 定期报告 | 2015-02-06 |
| 2015-02-18 | 5118.60 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2014-12-31 |
| 2014-11-03 | 5117.93 | 未披露 | 定期报告 | 2014-10-29 |
| 2014-11-03 | 5132.38 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-08 | 5112.68 | 未披露 | 定期报告 | 2014-08-01 |
| 2014-08-08 | 5096.34 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-08 | 5109.61 | 未披露 | 定期报告 | 2014-04-30 |
| 2014-05-08 | 5137.12 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-19 | 5161.38 | 未披露 | 定期报告 | 2014-03-05 |
| 2014-02-14 | 5137.57 | 未披露 | 定期报告 | 2014-02-03 |
| 2014-02-14 | 5123.01 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2013-12-31 |
| 2013-11-07 | 5122.67 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-08-07 | 5202.67 | 未披露 | 定期报告 | 2013-08-02 |
| 2013-08-07 | 5188.33 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-03-19 | 5187.73 | 未披露 | 定期报告 | 2013-03-04 |
| 2013-02-15 | 5180.56 | 未披露 | 定期报告 | 2013-02-08 |
| 2013-02-15 | 5143.28 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2012-12-31 |
| 2012-11-08 | 5125.58 | 未披露 | 定期报告 | 2012-09-30 |
| 2012-08-08 | 5125.33 | 未披露 | 定期报告 | 2012-08-01 |
| 2012-08-08 | 5094.43 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-05-04 | 5094.43 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-02-24 | 5097.52 | 未披露 | 定期报告 | 2012-02-10 |
| 2012-02-24 | 5061.22 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2011-12-31 |
| 2011-11-04 | 5072.29 | 未披露 | 定期报告 | 2011-10-31 |
| 2011-11-04 | 5098.03 | 未披露 | 定期报告 | 2011-09-30 |
| 2011-08-05 | 5188.34 | 未披露 | 定期报告 | 2011-08-01 |
| 2011-08-05 | 5204.20 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-05-06 | 5288.62 | 未披露 | 定期报告 | 2011-05-04 |
| 2011-05-06 | 5337.12 | 未披露 | 定期报告 | 2011-03-31 |
| 2011-02-25 | 5390.86 | 未披露 | 定期报告 | 2011-02-17 |
| 2011-02-25 | 5417.30 | 未披露 |
更多>>
From Dec 31 2009 to Dec 31 2010
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2010-12-31 |
| 2010-11-05 | 5504.17 | 未披露 | 定期报告 | 2010-11-01 |
| 2010-11-05 | 5528.52 | 未披露 | 定期报告 | 2010-09-30 |
| 2010-08-06 | 5614.04 | 未披露 | 定期报告 | 2010-08-02 |
| 2010-08-06 | 5593.59 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-05-07 | 5593.61 | 未披露 | 定期报告 | 2010-05-03 |
| 2010-05-07 | 5593.32 | 未披露 | 定期报告 | 2010-03-31 |
| 2010-02-23 | 5601.39 | 未披露 | 定期报告 | 2010-02-12 |
| 2010-02-23 | 5560.90 | 未披露 |
更多>>
From December 31, 2008 to December 31, 2009
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2009-12-31 |
| 2009-02-23 | 5694.61 | 未披露 | 定期报告 | 2009-02-16 |
| 2009-02-23 | 5636.97 | 未披露 |
更多>>
From December 31, 2007 to December 31, 2008
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2008-12-31 |
| 2008-02-27 | 6067.43 | 未披露 | 定期报告 | 2008-02-18 |
| 2008-02-27 | 6047.86 | 未披露 |
更多>>
From December 31, 2006 to December 31, 2007
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2007-12-31 |
| 2007-03-01 | 6434.57 | 未披露 | 定期报告 | 2007-02-23 |
| 2007-03-01 | 6395.86 | 未披露 |
更多>>
From December 31, 2005 to December 31, 2006
Sale of common stock, net of offering costs and underwriting discount of $8,864
Exercise of common stock options
Sale of common stock under employee stock purchase plan
|
2006-12-31 |
| 2006-03-14 | 5951.30 | 未披露 | 定期报告 | 2006-03-10 |
| 2006-03-14 | 5871.56 | 未披露 |
更多>>
From December 31, 2004 to December 31, 2005
Exercise of common stock options
Sale of common stock under employee stock purchase plan
|
2005-12-31 |
| 2005-03-10 | 5766.91 | 未披露 | 定期报告 | 2005-03-08 |
| 2005-03-10 | 5764.89 | 未披露 |
更多>>
From December 31, 2003 to December 31, 2004
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Treasury stock purchases
|
2004-12-31 |
| 2004-03-11 | 5326.53 | 未披露 | 定期报告 | 2004-03-08 |
| 2004-03-11 | 5799.37 | 未披露 |
更多>>
From December 31, 2002 to December 31, 2003
Exercise of common stock options
Sale of common stock under employee stock purchase plan
|
2003-12-31 |
| 2003-03-31 | 5764.55 | 未披露 | 定期报告 | 2003-03-27 |
| 2003-03-31 | 5743.65 | 未披露 |
更多>>
From December 31, 2001 to December 31, 2002
Exercise of common stock options
Sale of common stock under employee stock purchase plan
|
2002-12-31 |
| 2002-04-01 | 5695.90 | 未披露 | 定期报告 | 2002-03-15 |
| 2002-04-01 | 5682.51 | 未披露 |
更多>>
From December 31, 2000 to December 31, 2001
Exercise of common stock options
Sale of common stock under employee stock purchase plan
|
2001-12-31 |
| 2001-06-29 | 5620.90 | 未披露 | 定期报告 | 2001-06-15 |
| 2001-06-29 | 5610.16 | 未披露 |
更多>>
From March 31, 2000 to March 31, 2001
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Sale of common stock, net of offering costs of $349
On November 7, 2000, the Board of Directors declared a stock dividend
|
2001-03-31 |
| 2000-06-27 | 2478.17 | 未披露 | 定期报告 | 2000-06-07 |
| 2000-06-27 | 2473.63 | 未披露 |
更多>>
From March 31, 1999 to March 31, 2000
Exercise of common stock options (at prices ranging from $6.88 to $12.75 per share)
Sale of common stock under employee stock purchase plan
|
2000-03-31 |
| 1999-06-28 | 2450.87 | 未披露 | 定期报告 | 1999-06-17 |
| 1999-06-28 | 2446.94 | 未披露 |
更多>>
From March 31, 1998 to March 31, 1999
Exercise of common stock options (at prices ranging from $6.88 to $16.63 per share)
Sale of common stock under employee stock purchase plan
|
1999-03-31 |
| 1998-06-26 | 2414.13 | 未披露 | 定期报告 | 1998-06-16 |
| 1998-06-26 | 2400.99 | 未披露 |
更多>>
From March 31, 1997 to March 31, 1998
Exercise of common stock options (at prices ranging from $6.32 to $16.63 per share)
Sale of common stock under employee stock purchase plan
Sale of common stock, net of offering Costs of $3,648
On May 5, 1998, the Company's Board of Directors declared a 100 percent stock dividend (one share for each share outstanding) payable to stockholders of record on May 20, 1998.
|
1998-03-31 |
| 1997-06-25 | 1015.02 | 未披露 |
更多>>
From March 31, 1996 to March 31, 1997
Exercise of common stock options (at a price of $5.50 per share)
Sale of common stock under Employee stock purchase plan
|
1997-03-31 |
| 1996-07-01 | 1004.72 | 未披露 |
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From March 31, 1995 to March 31, 1996
Exercise of common stock options (at prices ranging from $3.83 to $5.50 per share)
Sale of common stock under employee stock purchase plan
Purchase of treasury stock
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1996-03-31 |
| 1995-06-29 | 1032.21 | 未披露 | 定期报告 | 1995-06-21 |
| 1995-06-29 | 1031.81 | 未披露 |
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From March 31, 1994 to March 31, 1995
Exercise of common stock options (at prices ranging from $3.83 to $5.50 per share)
Purchase of treasury stock
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1995-03-31 |
| 1995-06-29 | 1144.51 | 未披露 |
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From March 31, 1993 to March 31, 1994
Exercise of common stock options (at prices ranging from $3.83 to $4.58 per share)
Sale of common stock
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1994-03-31 |
From June 30, 2025 to September 30, 2025
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From March 31, 2025 to June 30, 2025
Stock grants to Company directors
Treasury stock purchases
From December 31, 2024 to March 31, 2025
Employee income tax paid on vested equity awards
Vested employee stock awards
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From December 31, 2023 to December 31, 2024
Treasury stock purchases
Vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
Issuance of common stock upon warrant exercise, net
From June 30, 2024 to September 30, 2024
Sale of common stock under employee stock purchase plan
Issuance of common stock upon warrant exercise, net
Treasury stock purchases
From March 31, 2024 to June 30, 2024
Stock awards
Treasury stock purchases
From December 31, 2023 to March 31, 2024
Vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
Treasury stock purchases
From December 31, 2022 to December 31, 2023
Exercise of common stock options and vested employee stock award
Employee income tax paid on vested equity awards
Sale of common stock under employee stock purchase plan
From June 30, 2023 to September 30, 2023
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From March 31, 2023 to June 30, 2023
Treasury stock purchases
From December 31, 2022 to March 31, 2023
Sale of common stock under employee stock purchase plan
Treasury stock purchases
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
From December 31, 2021 to December 31, 2022
Sale of common stock under employee stock purchase plan
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
From June 30, 2022 to September 30, 2022
Exercise of common stock options and vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
From December 31, 2021 to March 31, 2022
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
Sale of common stock under employee stock purchase plan
From December 31, 2020 to December 31, 2021
Exercise of common stock options and vested employee stock awards
Employee income tax paid on vested equity awards
Sale of common stock under employee stock purchase plan
From June 30, 2021 to September 30, 2021
Sale of common stock under employee stock purchase plan
From December 31, 2020 to March 31, 2021
Exercise of common stock options and vested employee stock awards
Sale of common stock under employee stock purchase plan
Employee income tax paid on vested equity awards
From December 31,2019 to December 31,2020
Exercise of common stock options and vested restricted stock units
Sale of common stock under employee stock purchase plan
Shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
From June 30, 2020 to July 31, 2020
Sale of common stock under employee stock purchase plan
From December 31, 2019 to March 31, 2020
Exercise of common stock options and stock issued under equity award plan
Sale of common stock under employee stock purchase plan
Treasury shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
from December 31, 2018 to December 31, 2019
Treasury shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
Sale of common stock under employee stock purchase plan
Exercise of common stock options and vested restricted stock units
Common stock purchased and cancelled
from June 30, 2019 to September 30, 2019
Exercise of common stock options and stock issued under equity award plan
Sale of common stock under employee stock purchase plan
from April 1, 2019 to June 30,2019
Exercise of common stock options and stock issued under equity award plan
Common stock purchased and cancelled
Treasury stock purchases
from December 31, 2018 to March 31, 2019
Exercise of common stock options and stock issued under equity award plan
Sale of common stock under employee stock purchase plan
Treasury shares acquired from vested employee stock awards for income tax withholdings
Treasury stock purchases
from December 31, 2017 to December 31, 2018
Exercise of common stock options and vested restricted stock units
Treasury shares acquired from vested employee stock awards for income tax withholdings
Sale of common stock under employee stock purchase plan
Treasury stock purchases
from December 31, 2016 to December 31, 2017
Exercise of common stock options and vested restricted stock units
Treasury shares withheld for the payment of taxes
Sale of common stock under employee stock purchase plan
Treasury stock purchases
from December 31, 2015 to December 31, 2016
Exercise of common stock options and vested restricted stock units
Sale of common stock under employee stock purchase plan
from December 31, 2014 to December 31, 2015
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
from December 31, 2013 to December 31, 2014
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
from December 31, 2012 to December 31, 2013
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
from December 31, 2011 to December 31, 2012
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
from December 31, 2010 to December 31, 2011
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From Dec 31 2009 to Dec 31 2010
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From December 31, 2008 to December 31, 2009
Exercise of common stock options and issuance of restricted stock
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From December 31, 2007 to December 31, 2008
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From December 31, 2006 to December 31, 2007
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From December 31, 2005 to December 31, 2006
Sale of common stock, net of offering costs and underwriting discount of $8,864
Exercise of common stock options
Sale of common stock under employee stock purchase plan
From December 31, 2004 to December 31, 2005
Exercise of common stock options
Sale of common stock under employee stock purchase plan
From December 31, 2003 to December 31, 2004
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Treasury stock purchases
From December 31, 2002 to December 31, 2003
Exercise of common stock options
Sale of common stock under employee stock purchase plan
From December 31, 2001 to December 31, 2002
Exercise of common stock options
Sale of common stock under employee stock purchase plan
From December 31, 2000 to December 31, 2001
Exercise of common stock options
Sale of common stock under employee stock purchase plan
From March 31, 2000 to March 31, 2001
Exercise of common stock options
Sale of common stock under employee stock purchase plan
Sale of common stock, net of offering costs of $349
On November 7, 2000, the Board of Directors declared a stock dividend
From March 31, 1999 to March 31, 2000
Exercise of common stock options (at prices ranging from $6.88 to $12.75 per share)
Sale of common stock under employee stock purchase plan
From March 31, 1998 to March 31, 1999
Exercise of common stock options (at prices ranging from $6.88 to $16.63 per share)
Sale of common stock under employee stock purchase plan
From March 31, 1997 to March 31, 1998
Exercise of common stock options (at prices ranging from $6.32 to $16.63 per share)
Sale of common stock under employee stock purchase plan
Sale of common stock, net of offering Costs of $3,648
On May 5, 1998, the Company's Board of Directors declared a 100 percent stock dividend (one share for each share outstanding) payable to stockholders of record on May 20, 1998.
From March 31, 1996 to March 31, 1997
Exercise of common stock options (at a price of $5.50 per share)
Sale of common stock under Employee stock purchase plan
From March 31, 1995 to March 31, 1996
Exercise of common stock options (at prices ranging from $3.83 to $5.50 per share)
Sale of common stock under employee stock purchase plan
Purchase of treasury stock
From March 31, 1994 to March 31, 1995
Exercise of common stock options (at prices ranging from $3.83 to $5.50 per share)
Purchase of treasury stock
From March 31, 1993 to March 31, 1994
Exercise of common stock options (at prices ranging from $3.83 to $4.58 per share)
Sale of common stock