股本结构
单位：万股
| 公告日期 | 2025-11-06 | 2025-11-06 | 2025-08-05 | 2025-08-05 | 2025-05-06 | 2025-05-06 |
|---|---|---|---|---|---|---|
| 证券总股本 | 3099.91 | 3099.80 | 3141.89 | 3141.80 | 3212.95 | 3212.90 |
| 普通股本 | 3099.91 | 3099.80 | 3141.89 | 3141.80 | 3212.95 | 3212.90 |
| 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 | 2025-08-01 | 2025-06-30 | 2025-05-02 | 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 |
|---|---|---|---|---|
| 2025-11-06 | 3099.91 | 未披露 | 定期报告 | 2025-11-03 |
| 2025-11-06 | 3099.80 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
|
2025-09-30 |
| 2025-08-05 | 3141.89 | 未披露 | 定期报告 | 2025-08-01 |
| 2025-08-05 | 3141.80 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
Issuance of stock under Employee Stock Purchase Plan
|
2025-06-30 |
| 2025-05-06 | 3212.95 | 未披露 | 定期报告 | 2025-05-02 |
| 2025-05-06 | 3212.90 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
|
2025-03-31 |
| 2025-03-31 | 3218.08 | 未披露 | 定期报告 | 2025-03-17 |
| 2025-02-28 | 3215.41 | 未披露 | 定期报告 | 2025-02-24 |
| 2025-03-31 | 3234.53 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Issuance of stock under Employee Stock Purchase Plan
Issuance of restricted shares of common stock
Repurchase of common stock
|
2024-12-31 |
| 2024-11-07 | 3250.61 | 未披露 | 定期报告 | 2024-11-04 |
| 2024-11-07 | 3250.40 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
|
2024-09-30 |
| 2024-08-01 | 3261.76 | 未披露 | 定期报告 | 2024-07-29 |
| 2024-08-01 | 3261.70 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Issuance of stock under Employee Stock Purchase Plan
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
|
2024-06-30 |
| 2024-05-02 | 3253.25 | 未披露 | 定期报告 | 2024-04-30 |
| 2024-05-02 | 3260.50 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
|
2024-03-31 |
| 2024-03-29 | 3260.27 | 未披露 | 定期报告 | 2024-03-15 |
| 2024-02-23 | 3262.58 | 未披露 | 定期报告 | 2024-02-20 |
| 2024-03-29 | 3267.48 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Repurchase of common stock
Exercise of stock options
Issuance of stock under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2023-12-31 |
| 2023-11-02 | 3274.75 | 未披露 | 定期报告 | 2023-10-31 |
| 2023-11-02 | 3277.20 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Issuance of common stock on restricted stock units, net of stock withheld
Repurchase of common stock
|
2023-09-30 |
| 2023-08-03 | 3281.75 | 未披露 | 定期报告 | 2023-07-31 |
| 2023-08-03 | 3283.60 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
Issuance of stock under Employee Stock Purchase Plan
|
2023-06-30 |
| 2023-05-05 | 3271.11 | 未披露 | 定期报告 | 2023-05-01 |
| 2023-05-05 | 3272.60 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
Exercise of stock options
|
2023-03-31 |
| 2023-03-31 | 3272.48 | 未披露 | 定期报告 | 2023-03-15 |
| 2023-02-24 | 3271.41 | 未披露 | 定期报告 | 2023-02-21 |
| 2023-02-24 | 3277.50 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
Exercise of stock options
|
2022-12-31 |
| 2022-11-03 | 3284.86 | 未披露 | 定期报告 | 2022-10-31 |
| 2022-11-03 | 3293.70 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Repurchase of common stock
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
|
2022-09-30 |
| 2022-08-04 | 3303.38 | 未披露 | 定期报告 | 2022-08-02 |
| 2022-08-04 | 3309.40 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Issuance of shares under Employee Stock Purchase Plan
Repurchase of common stock
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
|
2022-06-30 |
| 2022-05-05 | 3302.04 | 未披露 | 定期报告 | 2022-05-02 |
| 2022-05-05 | 3306.40 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
Repurchase of common stock
|
2022-03-31 |
| 2022-03-30 | 3318.25 | 未披露 | 定期报告 | 2022-03-24 |
| 2022-02-25 | 3325.13 | 未披露 | 定期报告 | 2022-02-23 |
| 2022-02-25 | 3324.00 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
|
2021-12-31 |
| 2021-11-05 | 3331.18 | 未披露 | 定期报告 | 2021-11-02 |
| 2021-11-05 | 3340.60 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
|
2021-09-30 |
| 2021-08-06 | 3357.47 | 未披露 | 定期报告 | 2021-08-03 |
| 2021-08-06 | 3365.70 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares, net of shares withheld
Repurchase of common stock
|
2021-06-30 |
| 2021-05-06 | 3359.99 | 未披露 | 定期报告 | 2021-05-03 |
| 2021-05-06 | 3367.90 | 未披露 |
更多>>
From December 31, 2020 to March 31, 2021
Exercise of stock options
Issuance of restricted common shares, net of shares withheld
Repurchase of common stock
|
2021-03-31 |
| 2021-03-25 | 3377.46 | 未披露 | 定期报告 | 2021-03-24 |
| 2021-02-26 | 3373.21 | 未披露 | 定期报告 | 2021-02-23 |
| 2021-03-25 | 3363.33 | 未披露 |
更多>>
from December 31, 2019 to December 31, 2020
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
|
2020-12-31 |
| 2020-11-06 | 3349.60 | 未披露 | 定期报告 | 2020-11-03 |
| 2020-11-06 | 3349.10 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Exercise of stock options
Issuance of restricted common shares,net of shares withheld
|
2020-09-30 |
| 2020-08-05 | 3346.52 | 未披露 | 定期报告 | 2020-07-31 |
| 2020-08-05 | 3343.30 | 未披露 |
更多>>
from March 31, 2020 to June 30, 2020
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares,net of shares withheld
|
2020-06-30 |
| 2020-05-06 | 3287.51 | 未披露 | 定期报告 | 2020-05-04 |
| 2020-05-29 | 3283.65 | 未披露 |
更多>>
from December 31, 2019 to March 31, 2020
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
|
2020-03-31 |
| 2020-03-30 | 3283.18 | 未披露 | 定期报告 | 2020-03-25 |
| 2020-03-02 | 3308.92 | 未披露 | 定期报告 | 2020-02-27 |
| 2020-03-02 | 3258.50 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
|
2019-12-31 |
| 2019-11-07 | 3242.11 | 未披露 | 定期报告 | 2019-11-05 |
| 2019-11-07 | 3239.70 | 未披露 |
更多>>
From June 30, 2019 to September 30, 2019
Exercise of stock options
Issuance of restricted common shares
|
2019-09-30 |
| 2019-08-07 | 3233.21 | 未披露 | 定期报告 | 2019-08-05 |
| 2019-08-07 | 3229.70 | 未披露 |
更多>>
from March 31, 2019 to June 30, 2019
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2019-06-30 |
| 2019-05-08 | 3294.22 | 未披露 | 定期报告 | 2019-05-06 |
| 2019-05-08 | 3288.10 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Exercise of stock options
Issuance of restricted common shares
|
2019-03-31 |
| 2019-03-27 | 3282.67 | 未披露 | 定期报告 | 2019-03-18 |
| 2019-03-11 | 3274.13 | 未披露 | 定期报告 | 2019-03-04 |
| 2019-03-11 | 3255.80 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2018-12-31 |
| 2018-11-02 | 3241.21 | 未披露 | 定期报告 | 2018-10-31 |
| 2018-11-02 | 3239.80 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-03 | 3235.55 | 未披露 | 定期报告 | 2018-08-01 |
| 2018-08-03 | 3233.10 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-04 | 3214.56 | 未披露 | 定期报告 | 2018-05-01 |
| 2018-05-04 | 3214.20 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-27 | 3213.42 | 未披露 | 定期报告 | 2018-03-19 |
| 2018-03-14 | 3212.88 | 未披露 | 定期报告 | 2018-03-12 |
| 2018-03-14 | 3204.80 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2017-12-31 |
| 2017-11-03 | 3141.32 | 未披露 | 定期报告 | 2017-10-31 |
| 2017-11-03 | 3143.30 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-04 | 3122.38 | 未披露 | 定期报告 | 2017-08-01 |
| 2017-08-04 | 3118.00 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-05 | 3009.58 | 未披露 | 定期报告 | 2017-05-01 |
| 2017-05-05 | 2999.50 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-03-29 | 2993.23 | 未披露 | 定期报告 | 2017-03-22 |
| 2017-03-14 | 2991.71 | 未披露 | 定期报告 | 2017-03-13 |
| 2017-03-14 | 2951.80 | 未披露 |
更多>>
From December 31, 2015 to December 31, 2016
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Treasury shares returned to authorized
As of 6:00 PM Eastern Time on June 30, 2016, the Company effected a 1-for-4 reverse stock split of its common stock.
|
2016-12-31 |
| 2016-11-03 | 2936.81 | 未披露 | 定期报告 | 2016-10-31 |
| 2016-11-02 | 2934.70 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-08 | 2915.82 | 未披露 | 定期报告 | 2016-08-04 |
| 2016-08-02 | 2913.40 | 未披露 |
更多>>
As of 6:00 PM Eastern Time on June 30, 2016, the Company effected a 1-for-4 reverse stock split of its common stock.
|
2016-07-01 |
| 2016-05-05 | 11634.17 | 未披露 | 定期报告 | 2016-05-02 |
| 2016-05-02 | 11623.70 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-14 | 11617.75 | 未披露 | 定期报告 | 2016-03-11 |
| 2016-03-04 | 11615.23 | 未披露 | 定期报告 | 2016-03-01 |
| 2016-03-04 | 11598.10 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2015-12-31 |
| 2015-11-05 | 11571.20 | 未披露 | 定期报告 | 2015-10-30 |
| 2015-11-04 | 11560.10 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-05 | 11427.91 | 未披露 | 定期报告 | 2015-07-31 |
| 2015-08-04 | 11420.20 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-06 | 11352.85 | 未披露 | 定期报告 | 2015-05-01 |
| 2015-05-05 | 11351.30 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-25 | 11348.30 | 未披露 | 定期报告 | 2015-03-17 |
| 2015-03-11 | 11346.68 | 未披露 | 定期报告 | 2015-03-06 |
| 2015-03-11 | 11272.90 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2014-12-31 |
| 2014-11-06 | 11200.46 | 未披露 | 定期报告 | 2014-10-31 |
| 2014-11-05 | 11191.70 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-08 | 11158.66 | 未披露 | 定期报告 | 2014-07-29 |
| 2014-08-04 | 11152.30 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-06 | 11114.90 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-25 | 11094.38 | 未披露 | 定期报告 | 2014-03-17 |
| 2014-03-03 | 11071.12 | 未披露 | 定期报告 | 2014-02-24 |
| 2014-03-03 | 11010.50 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2013-12-31 |
| 2013-11-08 | 10959.68 | 未披露 | 定期报告 | 2013-10-31 |
| 2013-11-06 | 10946.60 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-08-02 | 10886.70 | 未披露 | 定期报告 | 2013-07-26 |
| 2013-08-01 | 10865.20 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-05-06 | 10831.09 | 未披露 | 定期报告 | 2013-04-29 |
| 2013-05-06 | 10828.50 | 未披露 | 定期报告 | 2013-03-31 |
| 2013-03-26 | 10823.58 | 未披露 | 定期报告 | 2013-03-18 |
| 2013-03-01 | 10823.33 | 未披露 | 定期报告 | 2013-02-25 |
| 2013-03-01 | 10817.30 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2012-12-31 |
| 2012-11-05 | 10787.63 | 未披露 | 定期报告 | 2012-10-31 |
| 2012-08-07 | 10784.39 | 未披露 | 定期报告 | 2012-07-31 |
| 2012-05-04 | 10761.81 | 未披露 | 定期报告 | 2012-04-30 |
| 2012-02-29 | 10711.70 | 未披露 | 定期报告 | 2012-02-27 |
| 2012-02-29 | 10668.90 | 未披露 |
更多>>
from December 31, 2010 to December 31, 2011
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2011-12-31 |
| 2011-11-04 | 10647.55 | 未披露 | 定期报告 | 2011-11-03 |
| 2011-08-05 | 10642.37 | 未披露 | 定期报告 | 2011-08-04 |
| 2011-05-06 | 10609.60 | 未披露 | 定期报告 | 2011-05-05 |
| 2011-03-14 | 10601.27 | 未披露 | 定期报告 | 2011-03-14 |
| 2011-03-14 | 10578.60 | 未披露 |
更多>>
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Issuance of restricted shares in satisfaction of accrued compensation
|
2010-12-31 |
| 2010-11-05 | 10476.66 | 未披露 | 定期报告 | 2010-11-04 |
| 2010-08-06 | 10464.99 | 未披露 | 定期报告 | 2010-08-04 |
| 2010-05-12 | 10416.26 | 未披露 | 定期报告 | 2010-05-12 |
| 2010-03-15 | 10413.52 | 未披露 | 定期报告 | 2010-03-15 |
| 2010-03-15 | 10409.20 | 未披露 |
更多>>
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2009-12-31 |
| 2009-03-31 | 10328.39 | 未披露 | 定期报告 | 2009-03-27 |
| 2009-03-31 | 10328.00 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of restricted common shares
|
2008-12-31 |
| 2008-03-17 | 10244.87 | 未披露 | 定期报告 | 2008-03-13 |
| 2008-03-17 | 10244.50 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of common shares under the 2000 Stock Plan
|
2007-12-31 |
| 2007-03-15 | 10154.31 | 未披露 | 定期报告 | 2007-03-13 |
| 2007-03-15 | 10129.80 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of restricted common shares
|
2006-12-31 |
| 2006-03-14 | 10098.56 | 未披露 | 定期报告 | 2006-03-03 |
| 2006-03-14 | 10051.70 | 未披露 |
更多>>
from December 31, 2004 to December 31, 2005
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of restricted common shares
|
2005-12-31 |
| 2005-03-15 | 10018.07 | 未披露 | 定期报告 | 2005-03-04 |
| 2005-03-15 | 9999.00 | 未披露 |
更多>>
from December 31, 2003 to December 31, 2004
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
|
2004-12-31 |
| 2004-03-08 | 9935.45 | 未披露 | 定期报告 | 2004-01-31 |
| 2004-03-08 | 9899.40 | 未披露 |
更多>>
from December 31,2002 to December 31,2003
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Forfeiture of restricted common shares
|
2003-12-31 |
| 2003-03-28 | 9839.53 | 未披露 | 定期报告 | 2003-03-25 |
| 2003-03-28 | 9823.90 | 未披露 |
更多>>
from December 31, 2001 to December 31, 2002
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
|
2002-12-31 |
| 2002-03-12 | 9798.79 | 未披露 | 定期报告 | 2002-02-26 |
| 2002-03-12 | 9737.50 | 未披露 |
更多>>
from December 31,2000 to December 31,2001
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Acquisition of treasury shares
|
2001-12-31 |
| 2001-03-30 | 9712.53 | 未披露 | 定期报告 | 2001-03-15 |
| 2001-03-30 | 9705.00 | 未披露 |
更多>>
from December 31, 1999 to December 31, 2000
Initial public offering
|
2000-12-31 |
From June 30, 2025 to September 30, 2025
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
From March 31, 2025 to June 30, 2025
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
Issuance of stock under Employee Stock Purchase Plan
From December 31, 2024 to March 31, 2025
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
From December 31, 2023 to December 31, 2024
Issuance of stock under Employee Stock Purchase Plan
Issuance of restricted shares of common stock
Repurchase of common stock
From June 30, 2024 to September 30, 2024
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
From March 31, 2024 to June 30, 2024
Issuance of stock under Employee Stock Purchase Plan
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
From December 31, 2023 to March 31, 2024
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
From December 31, 2022 to December 31, 2023
Repurchase of common stock
Exercise of stock options
Issuance of stock under Employee Stock Purchase Plan
Issuance of restricted common shares
From June 30, 2023 to September 30, 2023
Issuance of common stock on restricted stock units, net of stock withheld
Repurchase of common stock
From March 31, 2023 to June 30, 2023
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
Issuance of stock under Employee Stock Purchase Plan
From December 31, 2022 to March 31, 2023
Issuance of common stock on restricted stock units, net of shares withheld
Repurchase of common stock
Exercise of stock options
From December 31, 2021 to December 31, 2022
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
Exercise of stock options
From June 30, 2022 to September 30, 2022
Repurchase of common stock
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
From March 31, 2022 to June 30, 2022
Issuance of shares under Employee Stock Purchase Plan
Repurchase of common stock
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
From December 31, 2021 to March 31, 2022
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
Repurchase of common stock
From December 31, 2020 to December 31, 2021
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
From June 30, 2021 to September 30, 2021
Exercise of stock options
Issuance of common shares on restricted stock units, net of shares withheld
From March 31, 2021 to June 30, 2021
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares, net of shares withheld
Repurchase of common stock
From December 31, 2020 to March 31, 2021
Exercise of stock options
Issuance of restricted common shares, net of shares withheld
Repurchase of common stock
from December 31, 2019 to December 31, 2020
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
From June 30, 2020 to September 30, 2020
Exercise of stock options
Issuance of restricted common shares,net of shares withheld
from March 31, 2020 to June 30, 2020
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares,net of shares withheld
from December 31, 2019 to March 31, 2020
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
from December 31, 2018 to December 31, 2019
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Repurchase of common stock
From June 30, 2019 to September 30, 2019
Exercise of stock options
Issuance of restricted common shares
from March 31, 2019 to June 30, 2019
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2018 to March 31, 2019
Exercise of stock options
Issuance of restricted common shares
from December 31, 2017 to December 31, 2018
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2016 to December 31, 2017
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
From December 31, 2015 to December 31, 2016
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Treasury shares returned to authorized
As of 6:00 PM Eastern Time on June 30, 2016, the Company effected a 1-for-4 reverse stock split of its common stock.
As of 6:00 PM Eastern Time on June 30, 2016, the Company effected a 1-for-4 reverse stock split of its common stock.
from December 31, 2014 to December 31, 2015
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2013 to December 31, 2014
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2012 to December 31, 2013
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2011 to December 31, 2012
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2010 to December 31, 2011
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Issuance of restricted shares in satisfaction of accrued compensation
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31, 2007 to December 31, 2008
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of restricted common shares
from December 31, 2006 to December 31, 2007
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of common shares under the 2000 Stock Plan
from December 31, 2005 to December 31, 2006
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of restricted common shares
from December 31, 2004 to December 31, 2005
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
Issuance of restricted common shares
from December 31, 2003 to December 31, 2004
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Forfeiture of restricted common shares
from December 31,2002 to December 31,2003
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
Forfeiture of restricted common shares
from December 31, 2001 to December 31, 2002
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Issuance of restricted common shares
from December 31,2000 to December 31,2001
Exercise of stock options
Issuance of shares under Employee Stock Purchase Plan
Acquisition of treasury shares
from December 31, 1999 to December 31, 2000
Initial public offering