股本结构
单位：万股
| 公告日期 | 2025-10-31 | 2025-10-31 | 2025-08-06 | 2025-05-01 | 2025-05-01 | 2025-04-01 |
|---|---|---|---|---|---|---|
| 证券总股本 | 10061.60 | 10070.00 | 10072.38 | 10079.69 | 10090.00 | 10096.71 |
| 普通股本 | 10061.60 | 10070.00 | 10072.38 | 10079.69 | 10090.00 | 10096.71 |
| 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 | 2025-10-21 | 2025-09-30 | 2025-07-28 | 2025-04-23 | 2025-03-31 | 2025-03-07 |
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 | 10061.60 | 未披露 | 定期报告 | 2025-10-21 |
| 2025-10-31 | 10070.00 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Repurchases of common stock in open market
|
2025-09-30 |
| 2025-08-06 | 10072.38 | 未披露 | 定期报告 | 2025-07-28 |
| 2025-05-01 | 10079.69 | 未披露 | 定期报告 | 2025-04-23 |
| 2025-05-01 | 10090.00 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Issuance of restricted stock
Receipt of treasury stock
Repurchases of common stock in open market
|
2025-03-31 |
| 2025-04-01 | 10096.71 | 未披露 | 定期报告 | 2025-03-07 |
| 2025-02-28 | 10070.91 | 未披露 | 定期报告 | 2025-02-13 |
| 2025-02-28 | 10077.54 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Receipt of treasury stock
Repurchases of common stock in open market
|
2024-12-31 |
| 2024-11-01 | 10074.95 | 未披露 | 定期报告 | 2024-10-22 |
| 2024-11-01 | 10080.00 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Repurchases of common stock in open market
|
2024-09-30 |
| 2024-08-06 | 10062.53 | 未披露 | 定期报告 | 2024-07-24 |
| 2024-08-06 | 10070.00 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Repurchases of common stock in open market
|
2024-06-30 |
| 2024-05-02 | 10068.53 | 未披露 | 定期报告 | 2024-04-22 |
| 2024-05-02 | 10070.00 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Receipt of treasury stock
|
2024-03-31 |
| 2024-02-28 | 10014.00 | 未披露 | 定期报告 | 2024-02-14 |
| 2024-02-28 | 10025.28 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Receipt of treasury stock
|
2023-12-31 |
| 2023-11-01 | 10024.08 | 未披露 | 定期报告 | 2023-10-23 |
| 2023-10-31 | 10024.14 | 未披露 | 定期报告 | 2023-09-30 |
| 2023-08-04 | 10023.08 | 未披露 | 定期报告 | 2023-07-24 |
| 2023-05-03 | 10023.57 | 未披露 | 定期报告 | 2023-04-20 |
| 2023-05-03 | 10020.00 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Receipt of treasury stock
|
2023-03-31 |
| 2023-02-27 | 9972.74 | 未披露 | 定期报告 | 2023-02-13 |
| 2023-02-27 | 9978.29 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Receipt of treasury stock
|
2022-12-31 |
| 2022-11-02 | 9978.85 | 未披露 | 定期报告 | 2022-10-24 |
| 2022-11-02 | 9980.00 | 未披露 | 定期报告 | 2022-09-30 |
| 2022-08-04 | 9977.76 | 未披露 | 定期报告 | 2022-07-25 |
| 2022-08-04 | 9980.00 | 未披露 |
更多>>
From March 31,2022 to June 30, 2022
Receipt of treasury stock
|
2022-06-30 |
| 2022-05-03 | 9980.26 | 未披露 | 定期报告 | 2022-04-21 |
| 2022-05-03 | 9980.00 | 未披露 |
更多>>
from December 31, 2021 to March 31, 2022
Receipt of treasury stock
|
2022-03-31 |
| 2022-02-25 | 9943.82 | 未披露 | 定期报告 | 2022-02-11 |
| 2022-02-25 | 9949.14 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Receipt of treasury stock
|
2021-12-31 |
| 2021-11-02 | 9949.25 | 未披露 | 定期报告 | 2021-10-21 |
| 2021-11-02 | 9950.00 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Receipt of treasury stock
|
2021-09-30 |
| 2021-08-03 | 9950.38 | 未披露 | 定期报告 | 2021-07-22 |
| 2021-08-03 | 9950.00 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Receipt of treasury stock
|
2021-06-30 |
| 2021-05-04 | 9954.24 | 未披露 | 定期报告 | 2021-04-22 |
| 2021-05-04 | 9960.00 | 未披露 |
更多>>
From December 31, 2020 to March 31, 2021
Receipt of treasury stock
|
2021-03-31 |
| 2021-02-26 | 9926.57 | 未披露 | 定期报告 | 2021-02-12 |
| 2021-02-26 | 9940.75 | 未披露 |
更多>>
From December 31, 2019 to December 31, 2020
Receipt of treasury stock
Exchange of Holdings shares
Stock options exercised
Repurchases of common stock in open market
|
2020-12-31 |
| 2020-11-02 | 9943.25 | 未披露 | 定期报告 | 2020-10-22 |
| 2020-11-02 | 9940.00 | 未披露 | 定期报告 | 2020-09-30 |
| 2020-07-31 | 9944.59 | 未披露 | 定期报告 | 2020-07-23 |
| 2020-09-21 | 9944.70 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Receipt of treasury stock
|
2020-06-30 |
| 2020-05-11 | 9940.51 | 未披露 | 定期报告 | 2020-05-04 |
| 2020-05-11 | 9940.00 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Receipt of treasury stock
Exchange of Holdings shares
Repurchases of common stock in open market
|
2020-03-31 |
| 2020-02-27 | 9843.34 | 未披露 | 定期报告 | 2020-02-13 |
| 2020-02-27 | 9859.29 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
|
2019-12-31 |
| 2019-10-31 | 9860.00 | 未披露 | 定期报告 | 2019-10-23 |
| 2019-10-31 | 9860.00 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Receipt of treasury stock
Repurchases of common stock in open market
|
2019-09-30 |
| 2019-07-31 | 9864.46 | 未披露 | 定期报告 | 2019-07-24 |
| 2019-07-31 | 9860.00 | 未披露 |
更多>>
from March 31, 2019 to June 30,2019
Repurchases of common stock in open market
|
2019-06-30 |
| 2019-05-01 | 9885.26 | 未披露 | 定期报告 | 2019-04-23 |
| 2019-05-01 | 9910.00 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Receipt of treasury stock
Repurchases of common stock in open market
|
2019-03-31 |
| 2019-02-27 | 9874.39 | 未披露 | 定期报告 | 2019-02-13 |
| 2019-02-27 | 9892.65 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Receipt of treasury stock
Stock options exercised
|
2018-12-31 |
| 2018-10-31 | 9892.83 | 未披露 | 定期报告 | 2018-10-25 |
| 2018-10-31 | 9890.00 | 未披露 |
更多>>
From December 31, 2017 to September 30, 2018
Receipt of treasury stock
Stock options exercised
|
2018-09-30 |
| 2018-08-02 | 9886.38 | 未披露 | 定期报告 | 2018-07-25 |
| 2018-08-02 | 9890.00 | 未披露 |
更多>>
from December 31, 2017 to June 30, 2018
Receipt of treasury stock
|
2018-06-30 |
| 2018-05-02 | 9881.98 | 未披露 | 定期报告 | 2018-04-25 |
| 2018-05-02 | 9880.00 | 未披露 |
更多>>
from December 31, 2017 to March 31, 2018
Receipt of treasury stock
|
2018-03-31 |
| 2018-02-28 | 9813.91 | 未披露 | 定期报告 | 2018-02-20 |
| 2018-03-23 | 9819.59 | 未披露 | 定期报告 | 2018-02-09 |
| 2018-02-28 | 9830.55 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
Conversion of convertible debt, net of tax
|
2017-12-31 |
| 2017-10-31 | 9831.08 | 未披露 | 定期报告 | 2017-10-25 |
| 2017-10-31 | 9830.00 | 未披露 |
更多>>
From December 31, 2017 to September 30, 2017
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
Conversion of convertible debt, net of tax
|
2017-09-30 |
| 2017-08-02 | 9873.46 | 未披露 | 定期报告 | 2017-07-25 |
| 2017-08-02 | 9870.00 | 未披露 |
更多>>
from December 31, 2016 to June 30, 2017
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
Conversion of convertible debt, net of tax
|
2017-06-30 |
| 2017-04-28 | 8956.97 | 未披露 | 定期报告 | 2017-04-21 |
| 2017-04-28 | 8950.00 | 未披露 |
更多>>
from December 31, 2016 to March 31, 2017
Receipt of treasury stock
Stock warrants exercised
Repurchases of common stock in open market
|
2017-03-31 |
| 2017-02-22 | 8905.23 | 未披露 | 定期报告 | 2017-02-15 |
| 2017-03-24 | 8909.02 | 未披露 | 定期报告 | 2017-02-13 |
| 2017-02-22 | 8892.98 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
|
2016-12-31 |
| 2016-10-28 | 8979.63 | 未披露 | 定期报告 | 2016-10-21 |
| 2016-10-28 | 8980.00 | 未披露 |
更多>>
From December 31,2015 to September 30,2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
|
2016-09-30 |
| 2016-07-29 | 8977.04 | 未披露 | 定期报告 | 2016-07-22 |
| 2016-07-29 | 8980.00 | 未披露 |
更多>>
From December 31, 2015 to June 30, 2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
|
2016-06-30 |
| 2016-04-28 | 9001.40 | 未披露 | 定期报告 | 2016-04-20 |
| 2016-04-28 | 9000.00 | 未披露 |
更多>>
From December 31, 2015 to March 31, 2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
|
2016-03-31 |
| 2016-05-06 | 9019.16 | 未披露 | 定期报告 | 2016-03-08 |
| 2016-02-25 | 8977.70 | 未披露 | 定期报告 | 2016-02-16 |
| 2016-02-25 | 9013.01 | 未披露 |
更多>>
From December 31, 2014 to December 31, 2015
Conversion of preferred stock
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
|
2015-12-31 |
| 2015-10-29 | 9143.79 | 未披露 | 定期报告 | 2015-10-22 |
| 2015-10-29 | 9140.00 | 未披露 |
更多>>
from December 31, 2014 to September 30, 2015
Receipt of treasury stock
Conversion of preferred stock
Stock options exercised
|
2015-09-30 |
| 2015-07-30 | 9144.95 | 未披露 | 定期报告 | 2015-07-23 |
| 2015-07-30 | 9150.00 | 未披露 |
更多>>
from December 31, 2014 to June 30, 2015
Conversion of preferred stock
Receipt of treasury stock
Stock options exercised
|
2015-06-30 |
| 2015-05-01 | 9149.46 | 未披露 | 定期报告 | 2015-04-24 |
| 2015-05-01 | 8820.00 | 未披露 |
更多>>
from December 31, 2014 to March 31, 2015
Receipt of treasury stock
Stock options exercised
|
2015-03-31 |
| 2015-04-06 | 8748.86 | 9.62 | 定期报告 | 2015-02-17 |
| 2015-03-02 | 8778.87 | 9.62 |
更多>>
from December 31, 2013 to December 31, 2014
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock through tender offer
|
2014-12-31 |
| 2014-10-28 | 8775.29 | 未披露 | 定期报告 | 2014-10-21 |
| 2014-10-28 | 8775.56 | 未披露 |
更多>>
From December 31, 2013 to September 30, 2014
Receipt of treasury stock
Stock-based compensation
Stock warrants exercised
Repurchases of common stock in open market
|
2014-09-30 |
| 2014-07-29 | 8772.63 | 未披露 | 定期报告 | 2014-07-22 |
| 2014-07-29 | 8772.67 | 未披露 |
更多>>
From December 31, 2013 to June 30, 2014
Receipt of treasury stock
Stock-based compensation
Stock warrants exercised
Repurchases of common stock in open market
|
2014-06-30 |
| 2014-04-29 | 8809.78 | 未披露 | 定期报告 | 2014-04-22 |
| 2014-04-29 | 8811.15 | 未披露 |
更多>>
from December 31, 2013 to March 31, 2014
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
|
2014-03-31 |
| 2014-04-01 | 8861.29 | 9.62 | 定期报告 | 2014-03-04 |
| 2014-02-20 | 8800.03 | 未披露 | 定期报告 | 2014-02-13 |
| 2014-02-20 | 8799.39 | 9.62 |
更多>>
from December 31, 2012 to December 31, 2013
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock through tender offer
|
2013-12-31 |
| 2013-11-22 | 8742.98 | 35.34 | 定期报告 | 2013-10-23 |
| 2013-10-29 | 8742.85 | 未披露 |
更多>>
from December 31, 2012 to September 30, 2013
Receipt of treasury stock
Stock options exercised
Repurchases of common stock through tender offer
|
2013-09-30 |
| 2013-07-30 | 8729.87 | 未披露 | 定期报告 | 2013-07-23 |
| 2013-07-30 | 8729.48 | 未披露 |
更多>>
from December 31, 2012 to June 30, 2013
Receipt of treasury stock
Stock options exercised
Repurchases of common stock through tender offer
|
2013-06-30 |
| 2013-04-26 | 8722.22 | 未披露 | 定期报告 | 2013-04-22 |
| 2013-04-26 | 8721.99 | 未披露 |
更多>>
from December 31, 2012 to March 31, 2013
Receipt of treasury stock
Repurchases of common stock through tender offer
|
2013-03-31 |
| 2013-04-02 | 9628.84 | 35.34 | 定期报告 | 2013-03-04 |
| 2013-02-19 | 9548.89 | 未披露 | 定期报告 | 2013-02-12 |
| 2013-02-19 | 9568.58 | 35.34 |
更多>>
from December 31, 2011 to December 31, 2012
Receipt of treasury stock
|
2012-12-31 |
| 2012-10-26 | 9566.20 | 未披露 | 定期报告 | 2012-10-22 |
| 2012-10-26 | 9570.00 | 35.34 |
更多>>
from Dec 31,2011 to September 30, 2012
Receipt of treasury stock
|
2012-09-30 |
| 2012-07-27 | 9566.13 | 未披露 | 定期报告 | 2012-07-23 |
| 2012-07-27 | 9570.00 | 35.34 |
更多>>
from DEC 31, 2011 to June 30, 2012
Receipt of treasury stock
|
2012-06-30 |
| 2012-05-01 | 9558.26 | 未披露 | 定期报告 | 2012-04-25 |
| 2012-05-01 | 9560.00 | 37.50 |
更多>>
from December 31,2011 to March 31,2012
Issuance of restricted stock
Receipt of treasury stock
|
2012-03-31 |
| 2012-02-23 | 9467.16 | 未披露 | 定期报告 | 2012-02-15 |
| 2012-02-23 | 9524.69 | 40.00 | 定期报告 | 2011-12-31 |
| 2011-11-04 | 9525.65 | 未披露 | 定期报告 | 2011-10-26 |
| 2011-11-04 | 9530.00 | 未披露 |
更多>>
from December 31,2010 to September 30,2011
Issuance of restricted stock
Forfeiture of restricted stock
Receipt of treasury stock
Stock options exercised
|
2011-09-30 |
| 2011-08-04 | 9528.51 | 未披露 | 定期报告 | 2011-07-27 |
| 2011-08-04 | 9530.00 | 未披露 |
更多>>
from December 31,2010 to June 30,2011
Issuance of restricted stock
Forfeiture of restricted stock
Receipt of treasury stock
Stock options exercised
|
2011-06-30 |
| 2011-05-02 | 9512.72 | 未披露 | 定期报告 | 2011-04-27 |
| 2011-05-02 | 9520.00 | 未披露 |
更多>>
from December 31,2010 to March 31,2011
Issuance of restricted stock
Receipt of treasury stock
|
2011-03-31 |
| 2011-02-24 | 9334.14 | 未披露 | 定期报告 | 2011-02-15 |
| 2011-02-24 | 9344.44 | 40.00 | 定期报告 | 2010-12-31 |
| 2010-11-03 | 9344.59 | 未披露 | 定期报告 | 2010-10-28 |
| 2010-11-03 | 9344.99 | 40.00 |
更多>>
from December 31, 2009 to September 30, 2010
Forfeiture of restricted stock
Receipt of treasury stock
|
2010-09-30 |
| 2010-08-05 | 9345.60 | 未披露 | 定期报告 | 2010-07-29 |
| 2010-08-05 | 9345.76 | 40.00 |
更多>>
From Dec 31 2009 to Jun 30 2010
Forfeiture of restricted stock
Receipt of treasury stock
|
2010-06-30 |
| 2010-02-23 | 9330.29 | 未披露 | 定期报告 | 2010-02-12 |
| 2010-02-23 | 9328.17 | 40.00 |
更多>>
From December 31, 2008 to December 31, 2009
Common stock issued under Securities Litigation Settlement
|
2009-12-31 |
| 2009-02-24 | 8800.97 | 未披露 | 定期报告 | 2009-02-13 |
| 2009-02-24 | 8801.88 | 40.00 |
更多>>
From December 31, 2007 to December 31, 2008
Issuance of restricted stock
Issuance of common stock
Receipt of treasury stock
Restricted stock cancellations
|
2008-12-31 |
| 2008-02-26 | 7885.37 | 未披露 | 定期报告 | 2008-02-15 |
| 2008-02-26 | 7871.27 | 40.00 |
更多>>
From December 31, 2006 to December 31, 2007
Receipt of treasury stock
Issuance of restricted stock
Retirement of treasury stock
|
2007-12-31 |
| 2007-03-01 | 7868.45 | 未披露 | 定期报告 | 2007-02-15 |
| 2007-03-01 | 7867.95 | 40.00 |
更多>>
From December 31, 2005 to December 31, 2006
Issuance of convertible perpetual preferred stock
Fractional share adjustment for reverse stock split
Receipt of treasury stock
Issuance of restricted stock
On October 18, 2006, at a special meeting of our stockholders, our stockholders approved a proposal to amend our Restated Certificate of Incorporation to effect a one for-five reverse stock split of our common stock, whereby each issued and outstanding five shares of common stock were combined into and became one share of common stock, and decrease the number of authorized shares of common stock from 600 million shares to 200 million shares. At the close of business on October 25, 2006, the reverse stock split became effective.
|
2006-12-31 |
| 2006-03-29 | 39823.00 | 未披露 | 定期报告 | 2006-02-28 |
| 2006-03-29 | 39770.85 | 未披露 |
更多>>
From December 31, 2004 to December 31, 2005
Stock issued to employees exercising stock options
Restricted stock and other stock plans, less cancellations
Purchase or receipt of treasury stock
Reissuance of treasury stock
|
2005-12-31 |
| 2005-12-02 | 39722.40 | 未披露 | 定期报告 | 2005-09-30 |
| 2005-06-27 | 39706.34 | 未披露 | 定期报告 | 2005-05-31 |
| 2005-12-02 | 39652.16 | 未披露 |
更多>>
From December 31, 2003 to December 31, 2004
Stock issued to employees exercising stock options
Restricted stock and other stock plans, less cancellations
Purchase or receipt of treasury stock
|
2004-12-31 |
| 2005-06-27 | 39618.44 | 未披露 |
更多>>
From December 31, 2002 to December 31, 2003
Stock issued to employees exercising stock options
Restricted stock and other stock plans, less cancellations
Re-issuance of treasury stock
|
2003-12-31 |
| 2005-06-27 | 39614.87 | 未披露 |
更多>>
From December 31, 2001 to December 31, 2002
Stock issued to employees exercising stock options
Purchase of treasury stock
Cancellation of restricted stock
Re-issuance of treasury stock
Other issuances of treasury stock
|
2002-12-31 |
| 2002-03-27 | 39168.00 | 未披露 |
更多>>
From December 31, 2000 to December 31, 2001
Proceeds from exercise of options
|
2001-12-31 |
| 2002-03-27 | 39277.89 | 未披露 | 定期报告 | 2001-03-22 |
From June 30, 2025 to September 30, 2025
Repurchases of common stock in open market
From December 31, 2024 to March 31, 2025
Issuance of restricted stock
Receipt of treasury stock
Repurchases of common stock in open market
From December 31, 2023 to December 31, 2024
Receipt of treasury stock
Repurchases of common stock in open market
From June 30, 2024 to September 30, 2024
Repurchases of common stock in open market
From March 31, 2024 to June 30, 2024
Repurchases of common stock in open market
From December 31, 2023 to March 31, 2024
Receipt of treasury stock
From December 31, 2022 to December 31, 2023
Receipt of treasury stock
From December 31, 2022 to March 31, 2023
Receipt of treasury stock
From December 31, 2021 to December 31, 2022
Receipt of treasury stock
From March 31,2022 to June 30, 2022
Receipt of treasury stock
from December 31, 2021 to March 31, 2022
Receipt of treasury stock
From December 31, 2020 to December 31, 2021
Receipt of treasury stock
From June 30, 2021 to September 30, 2021
Receipt of treasury stock
From March 31, 2021 to June 30, 2021
Receipt of treasury stock
From December 31, 2020 to March 31, 2021
Receipt of treasury stock
From December 31, 2019 to December 31, 2020
Receipt of treasury stock
Exchange of Holdings shares
Stock options exercised
Repurchases of common stock in open market
From March 31, 2020 to June 30, 2020
Receipt of treasury stock
From December 31, 2019 to March 31, 2020
Receipt of treasury stock
Exchange of Holdings shares
Repurchases of common stock in open market
from December 31, 2018 to December 31, 2019
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
from June 30, 2019 to September 30, 2019
Receipt of treasury stock
Repurchases of common stock in open market
from March 31, 2019 to June 30,2019
Repurchases of common stock in open market
from December 31, 2018 to March 31, 2019
Receipt of treasury stock
Repurchases of common stock in open market
from December 31, 2017 to December 31, 2018
Receipt of treasury stock
Stock options exercised
From December 31, 2017 to September 30, 2018
Receipt of treasury stock
Stock options exercised
from December 31, 2017 to June 30, 2018
Receipt of treasury stock
from December 31, 2017 to March 31, 2018
Receipt of treasury stock
from December 31, 2016 to December 31, 2017
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
Conversion of convertible debt, net of tax
From December 31, 2017 to September 30, 2017
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
Conversion of convertible debt, net of tax
from December 31, 2016 to June 30, 2017
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
Conversion of convertible debt, net of tax
from December 31, 2016 to March 31, 2017
Receipt of treasury stock
Stock warrants exercised
Repurchases of common stock in open market
from December 31, 2015 to December 31, 2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
From December 31,2015 to September 30,2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
From December 31, 2015 to June 30, 2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
From December 31, 2015 to March 31, 2016
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
From December 31, 2014 to December 31, 2015
Conversion of preferred stock
Receipt of treasury stock
Stock options exercised
Repurchases of common stock in open market
from December 31, 2014 to September 30, 2015
Receipt of treasury stock
Conversion of preferred stock
Stock options exercised
from December 31, 2014 to June 30, 2015
Conversion of preferred stock
Receipt of treasury stock
Stock options exercised
from December 31, 2014 to March 31, 2015
Receipt of treasury stock
Stock options exercised
from December 31, 2013 to December 31, 2014
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock through tender offer
From December 31, 2013 to September 30, 2014
Receipt of treasury stock
Stock-based compensation
Stock warrants exercised
Repurchases of common stock in open market
From December 31, 2013 to June 30, 2014
Receipt of treasury stock
Stock-based compensation
Stock warrants exercised
Repurchases of common stock in open market
from December 31, 2013 to March 31, 2014
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock in open market
from December 31, 2012 to December 31, 2013
Receipt of treasury stock
Stock options exercised
Stock warrants exercised
Repurchases of common stock through tender offer
from December 31, 2012 to September 30, 2013
Receipt of treasury stock
Stock options exercised
Repurchases of common stock through tender offer
from December 31, 2012 to June 30, 2013
Receipt of treasury stock
Stock options exercised
Repurchases of common stock through tender offer
from December 31, 2012 to March 31, 2013
Receipt of treasury stock
Repurchases of common stock through tender offer
from December 31, 2011 to December 31, 2012
Receipt of treasury stock
from Dec 31,2011 to September 30, 2012
Receipt of treasury stock
from DEC 31, 2011 to June 30, 2012
Receipt of treasury stock
from December 31,2011 to March 31,2012
Issuance of restricted stock
Receipt of treasury stock
from December 31,2010 to September 30,2011
Issuance of restricted stock
Forfeiture of restricted stock
Receipt of treasury stock
Stock options exercised
from December 31,2010 to June 30,2011
Issuance of restricted stock
Forfeiture of restricted stock
Receipt of treasury stock
Stock options exercised
from December 31,2010 to March 31,2011
Issuance of restricted stock
Receipt of treasury stock
from December 31, 2009 to September 30, 2010
Forfeiture of restricted stock
Receipt of treasury stock
From Dec 31 2009 to Jun 30 2010
Forfeiture of restricted stock
Receipt of treasury stock
From December 31, 2008 to December 31, 2009
Common stock issued under Securities Litigation Settlement
From December 31, 2007 to December 31, 2008
Issuance of restricted stock
Issuance of common stock
Receipt of treasury stock
Restricted stock cancellations
From December 31, 2006 to December 31, 2007
Receipt of treasury stock
Issuance of restricted stock
Retirement of treasury stock
From December 31, 2005 to December 31, 2006
Issuance of convertible perpetual preferred stock
Fractional share adjustment for reverse stock split
Receipt of treasury stock
Issuance of restricted stock
On October 18, 2006, at a special meeting of our stockholders, our stockholders approved a proposal to amend our Restated Certificate of Incorporation to effect a one for-five reverse stock split of our common stock, whereby each issued and outstanding five shares of common stock were combined into and became one share of common stock, and decrease the number of authorized shares of common stock from 600 million shares to 200 million shares. At the close of business on October 25, 2006, the reverse stock split became effective.
From December 31, 2004 to December 31, 2005
Stock issued to employees exercising stock options
Restricted stock and other stock plans, less cancellations
Purchase or receipt of treasury stock
Reissuance of treasury stock
From December 31, 2003 to December 31, 2004
Stock issued to employees exercising stock options
Restricted stock and other stock plans, less cancellations
Purchase or receipt of treasury stock
From December 31, 2002 to December 31, 2003
Stock issued to employees exercising stock options
Restricted stock and other stock plans, less cancellations
Re-issuance of treasury stock
From December 31, 2001 to December 31, 2002
Stock issued to employees exercising stock options
Purchase of treasury stock
Cancellation of restricted stock
Re-issuance of treasury stock
Other issuances of treasury stock
From December 31, 2000 to December 31, 2001
Proceeds from exercise of options