股本结构
单位：万股
| 公告日期 | 2024-03-21 | 2023-12-21 | 2023-09-26 | 2023-08-08 | 2023-07-18 | 2023-07-18 |
|---|---|---|---|---|---|---|
| 证券总股本 | 3542.71 | 3550.26 | 3529.50 | 3498.87 | 3493.50 | 3491.55 |
| 普通股本 | 3542.71 | 3550.26 | 3529.50 | 3498.87 | 3493.50 | 3491.55 |
| 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 | 2024-02-29 | 2023-11-30 | 2023-08-31 | 2023-07-27 | 2023-06-30 | 2023-05-31 |
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 |
|---|---|---|---|---|
| 2024-03-21 | 3542.71 | 未披露 |
更多>>
From November 30, 2023 to February 29, 2024
Repurchase of shares
Stock option activity
|
2024-02-29 |
| 2023-12-21 | 3550.26 | 未披露 |
更多>>
From August 31, 2023 to November 30, 2023
Stock option activity
|
2023-11-30 |
| 2023-09-26 | 3529.50 | 未披露 |
更多>>
From May 31, 2023 to August 31, 2023
Stock option activity
Restricted stock activity
|
2023-08-31 |
| 2023-08-08 | 3498.87 | 未披露 | 定期报告 | 2023-07-27 |
| 2023-07-18 | 3493.50 | 未披露 | 定期报告 | 2023-06-30 |
| 2023-07-18 | 3491.55 | 未披露 |
更多>>
From May 31, 2022 to May 31, 2023
Stock option activity
Restricted stock activity
Repurchase of shares
|
2023-05-31 |
| 2023-03-21 | 3470.68 | 未披露 |
更多>>
From November 30, 2022 to February 28, 2023
Restricted stock activity
Stock option activity
|
2023-02-28 |
| 2022-12-20 | 3445.51 | 未披露 |
更多>>
From August 31, 2022 to November 30, 2022
Stock option activity
Repurchase of shares
|
2022-11-30 |
| 2022-09-22 | 3508.31 | 未披露 | 定期报告 | 2022-08-31 |
| 2022-08-09 | 3540.55 | 未披露 | 定期报告 | 2022-07-28 |
| 2022-07-21 | 3541.66 | 未披露 | 定期报告 | 2022-06-30 |
| 2022-07-21 | 3539.11 | 未披露 |
更多>>
From May 31, 2021 to May 31, 2022
Stock option activity
Restricted stock activity
Repurchase of shares
|
2022-05-31 |
| 2022-03-22 | 3519.67 | 未披露 |
更多>>
From November 30, 2021 to February 28, 2022
Stock option activity
Repurchase of shares
|
2022-02-28 |
| 2021-12-21 | 3546.89 | 未披露 | 定期报告 | 2021-11-30 |
| 2021-09-23 | 3547.12 | 未披露 |
更多>>
From May 31, 2021 to August 31, 2021
Stock option activity
Restricted stock activity
|
2021-08-31 |
| 2021-08-18 | 3547.56 | 未披露 | 定期报告 | 2021-08-03 |
| 2021-08-18 | 3546.76 | 未披露 | 定期报告 | 2021-07-31 |
| 2021-07-21 | 3540.46 | 未披露 | 定期报告 | 2021-06-30 |
| 2021-07-21 | 3537.52 | 未披露 |
更多>>
From May 31, 2020 To May 31, 2021
Stock option activity
Restricted stock activity
|
2021-05-31 |
| 2021-03-23 | 3531.95 | 未披露 |
更多>>
From November 30, 2020 to February 28, 2021
Stock option activity
Restricted stock activity
|
2021-02-28 |
| 2020-12-18 | 3529.23 | 未披露 |
更多>>
From August 31, 2020 to November 30, 2020
Stock option activity
Restricted stock activity
|
2020-11-30 |
| 2020-09-24 | 3530.08 | 未披露 |
更多>>
From May 31, 2020 to August 31, 2020
Stock option activity
Restricted stock activity
|
2020-08-31 |
| 2020-08-28 | 3530.35 | 未披露 | 定期报告 | 2020-08-12 |
| 2020-07-21 | 3515.54 | 未披露 | 定期报告 | 2020-06-30 |
| 2020-07-21 | 3509.73 | 未披露 |
更多>>
From May 31, 2019 to May 31, 2020
Stock option activity
Restricted stock activity
Repurchase of shares
|
2020-05-31 |
| 2020-03-25 | 3510.07 | 未披露 |
更多>>
from November 30, 2019 to February 29, 2020
Stock option activity
Restricted stock activity
|
2020-02-29 |
| 2019-12-20 | 3491.36 | 未披露 |
更多>>
from August 31, 2019 to November 30, 2019
Stock option activity
Repurchase of shares
|
2019-11-30 |
| 2019-09-26 | 3497.03 | 未披露 |
更多>>
from May 31, 2019 to August 31, 2019
Stock option activity
Restricted stock activity
|
2019-08-31 |
| 2019-08-15 | 3506.70 | 未披露 | 定期报告 | 2019-08-01 |
| 2019-07-18 | 3482.61 | 未披露 | 定期报告 | 2019-06-28 |
| 2019-07-18 | 3478.78 | 未披露 |
更多>>
from May 31, 2018 to May 31, 2019
Stock option activity
Restricted stock activity
Repurchase of shares
|
2019-05-31 |
| 2019-03-20 | 3506.66 | 未披露 |
更多>>
From November 30, 2018 to February 28, 2019
Restricted stock activity
Repurchase of shares
|
2019-02-28 |
| 2018-12-19 | 3509.51 | 未披露 |
更多>>
From May 31, 2018 To November 30,2018
Stock option activity
Restricted stock activity
|
2018-11-30 |
| 2018-09-27 | 3504.11 | 未披露 |
更多>>
From May 31, 2018 To August 31, 2018
Restricted stock activity
Stock option activity
|
2018-08-31 |
| 2018-08-31 | 3503.96 | 未披露 | 定期报告 | 2018-08-14 |
| 2018-07-11 | 3474.03 | 未披露 | 定期报告 | 2018-06-29 |
| 2018-07-11 | 3471.56 | 未披露 |
更多>>
From May 31, 2017 To May 31, 2018
Restricted stock activity
Stock option activity
Repurchase of shares
|
2018-05-31 |
| 2018-03-21 | 3463.87 | 未披露 |
更多>>
From May 31, 2017 To February 28, 2018
Restricted stock activity
Stock option activity
Repurchase of shares
|
2018-02-28 |
| 2017-12-22 | 3472.94 | 未披露 |
更多>>
From May 31, 2017 To November 30, 2017
Restricted stock activity
Stock option activity
Repurchase of shares
|
2017-11-30 |
| 2017-09-20 | 3462.21 | 未披露 |
更多>>
from May 31, 2017 to August 31, 2017
Restricted stock activity
Stock option activity
Repurchase of shares
|
2017-08-31 |
| 2017-08-31 | 3462.21 | 未披露 | 定期报告 | 2017-08-16 |
| 2017-07-12 | 3439.65 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-07-12 | 3435.45 | 未披露 |
更多>>
from May 31, 2016 to May 31, 2017
Restricted stock activity
Stock option activity
Repurchase of shares
|
2017-05-31 |
| 2017-03-22 | 3432.42 | 未披露 |
更多>>
from May 31, 2016 to February 28, 2017
Stock option activity
Restricted stock activity
Repurchase of shares
|
2017-02-28 |
| 2016-12-22 | 3432.90 | 未披露 |
更多>>
From May 31, 2016 to November 30, 2016
Restricted stock activity
Stock option activity
Repurchase of shares
|
2016-11-30 |
| 2016-10-12 | 3429.98 | 未披露 | 定期报告 | 2016-10-11 |
| 2016-09-23 | 3417.43 | 未披露 |
更多>>
From May 31, 2016 to August 31, 2016
Restricted stock activity
Stock option activity
Repurchase of shares
|
2016-08-31 |
| 2016-08-31 | 3429.98 | 未披露 | 定期报告 | 2016-08-16 |
| 2016-07-13 | 3469.86 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-07-13 | 3451.46 | 未披露 |
更多>>
from May 31, 2015 to May 31, 2016
Stock option activity
Restricted stock activity
Repurchase of shares
|
2016-05-31 |
| 2016-03-23 | 3474.83 | 未披露 |
更多>>
from May 31, 2015 to February 29, 2016
Restricted stock activity
Stock option activity
Repurchase of shares
|
2016-02-29 |
| 2015-12-18 | 3504.36 | 未披露 |
更多>>
from May 31, 2015 to November 30, 2015
Restricted stock activity
Stock option activity
Repurchase of shares
|
2015-11-30 |
| 2015-09-25 | 3520.61 | 未披露 |
更多>>
from May 31, 2015 to August 31, 2015
Restricted stock activity
Stock option activity
Repurchase of shares
|
2015-08-31 |
| 2015-08-28 | 3551.65 | 未披露 | 定期报告 | 2015-08-18 |
| 2015-07-15 | 3536.64 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-07-15 | 3542.29 | 未披露 |
更多>>
from May 31, 2014 to May 31, 2015
Restricted stock activity
Stock option activity
Repurchase of shares
|
2015-05-31 |
| 2015-03-31 | 3981.61 | 未披露 |
更多>>
from May 31, 2014 to February 28, 2015
Stock option activity
Restricted stock activity
Repurchase of shares
|
2015-02-28 |
| 2014-12-19 | 3979.10 | 未披露 |
更多>>
from May 31, 2014 to November 30, 2014
Stock option activity
Restricted stock activity
Repurchase of shares
|
2014-11-30 |
| 2014-09-24 | 3987.76 | 未披露 |
更多>>
from May 31, 2014 to August 31, 2014
Stock option activity
Restricted stock activity
|
2014-08-31 |
| 2014-08-29 | 3989.12 | 未披露 | 定期报告 | 2014-08-19 |
| 2014-07-17 | 3959.04 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-07-17 | 3956.02 | 未披露 |
更多>>
from May 31, 2013 to May 31, 2014
Stock option activity
Restricted stock activity
Repurchase of shares
|
2014-05-31 |
| 2014-03-25 | 3956.86 | 未披露 |
更多>>
from May 31, 2013 to February 28, 2014
Stock option activity
Restricted stock activity
Repurchase of shares
|
2014-02-28 |
| 2013-12-20 | 3960.04 | 未披露 |
更多>>
From May 31, 2013 to November 30, 2013
Stock option activity
Restricted stock activity
|
2013-11-30 |
| 2013-09-25 | 3958.21 | 未披露 |
更多>>
from May 31, 2013 to August 31, 2013
Stock option activity
Restricted stock activity
|
2013-08-31 |
| 2013-08-30 | 3958.97 | 未披露 | 定期报告 | 2013-08-19 |
| 2013-07-26 | 3919.64 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-07-26 | 3938.22 | 未披露 |
更多>>
from May 31, 2012 to May 31, 2013
Restricted stock activity
Stock option activity
Repurchase of shares
|
2013-05-31 |
| 2013-03-22 | 3973.34 | 未披露 |
更多>>
from May 31, 2012 to February 28, 2013
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
|
2013-02-28 |
| 2012-12-21 | 3969.48 | 未披露 |
更多>>
from May 31, 2012 to November 30, 2012
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
|
2012-11-30 |
| 2012-09-25 | 3995.27 | 未披露 |
更多>>
from May 31, 2012 to August 31, 2012
Restricted stock activity
Repurchase of shares
|
2012-08-31 |
| 2012-08-31 | 3994.02 | 未披露 | 定期报告 | 2012-08-20 |
| 2012-07-19 | 4016.71 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-07-19 | 4027.30 | 未披露 |
更多>>
from May 31, 2011 to May 31, 2012
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
Bond hedge and warrant activity
|
2012-05-31 |
| 2012-03-26 | 4028.78 | 未披露 |
更多>>
from May 31, 2011 to February 29, 2012
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
|
2012-02-29 |
| 2011-12-22 | 4028.31 | 未披露 |
更多>>
From May 31, 2011 to November 30, 2011
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
|
2011-11-30 |
| 2011-10-14 | 4046.06 | 未披露 | 定期报告 | 2011-10-12 |
| 2011-09-23 | 4046.06 | 未披露 |
更多>>
Restricted stock activity
|
2011-08-31 |
| 2011-07-13 | 3968.21 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-07-13 | 3978.10 | 未披露 |
更多>>
from May 31 2010 to May 31 2011
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
|
2011-05-31 |
| 2011-03-22 | 3973.90 | 未披露 |
更多>>
From May 31, 2010 to February 28, 2011
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
|
2011-02-28 |
| 2010-12-21 | 3967.72 | 未披露 |
更多>>
From May 31, 2010 to November 30, 2010
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
|
2010-11-30 |
| 2010-09-23 | 3966.28 | 未披露 |
更多>>
From May 31, 2010 to August 31, 2010
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
|
2010-08-31 |
| 2010-07-16 | 3948.20 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-07-16 | 3948.40 | 未披露 |
更多>>
From May 31 2009 to May 31 2010
Exercise of stock options and stock awards
Restricted stock activity
Bond hedge and warrant activity
|
2010-05-31 |
| 2010-03-19 | 3902.53 | 未披露 |
更多>>
From May 31 2009 to Feb 28 2010
Exercise of stock options and stock awards
Restricted stock activity
Bond hedge and warrant activity
|
2010-02-28 |
| 2009-07-16 | 3885.09 | 未披露 | 定期报告 | 2009-06-30 |
| 2009-07-16 | 3888.40 | 未披露 |
更多>>
from May 31, 2008 to May 31, 2009
Exercise of stock options and stock awards
Restricted stock activity
Bond hedge and warrant activity
|
2009-05-31 |
| 2008-07-11 | 3873.70 | 未披露 | 定期报告 | 2008-06-30 |
| 2008-07-11 | 3877.30 | 未披露 |
更多>>
from May 31, 2007 to May 31, 2008
Exercise of stock options and stock awards
Restricted stock activity
Common stock issued in debt for equity transaction
Repurchase of shares
|
2008-05-31 |
| 2007-07-20 | 3779.56 | 未披露 | 定期报告 | 2007-06-30 |
| 2007-07-20 | 3772.90 | 未披露 |
更多>>
from May 31, 2006 to May 31, 2007
Exercise of stock options and stock awards
|
2007-05-31 |
| 2006-07-17 | 3666.31 | 未披露 | 定期报告 | 2006-06-30 |
| 2006-07-17 | 3665.40 | 未披露 |
更多>>
from May 31, 2005 to May 31, 2006
Exercise of stock options and stock awards
Common stock issued in debt for equity transaction
|
2006-05-31 |
| 2005-07-22 | 3259.15 | 未披露 | 定期报告 | 2005-07-18 |
| 2005-07-22 | 3258.60 | 未披露 |
更多>>
from May 31, 2004 to May 31, 2005
Treasury stock
Exercise of stock options and stock awards
|
2005-05-31 |
| 2004-07-22 | 3224.39 | 未披露 | 定期报告 | 2004-07-01 |
| 2004-07-22 | 3224.50 | 未披露 |
更多>>
from May 31, 2003 to May 31, 2004
Treasury stock
Exercise of stock options and stock awards
|
2004-05-31 |
| 2003-08-18 | 3184.98 | 未披露 | 定期报告 | 2003-07-31 |
| 2003-08-18 | 3185.10 | 未披露 |
更多>>
from May 31, 2002 to May 31, 2003
Exercise of stock options and stock awards
Treasury stock
|
2003-05-31 |
| 2002-08-26 | 3186.61 | 未披露 | 定期报告 | 2002-07-31 |
| 2002-08-26 | 3187.00 | 未披露 |
更多>>
from May 31, 2001 to May 31, 2002
Issuance of common stock
Exercise of stock options and stock awards Awards
Treasury stock
|
2002-05-31 |
| 2001-08-27 | 2693.62 | 未披露 | 定期报告 | 2001-07-31 |
| 2001-08-27 | 2693.70 | 未披露 |
更多>>
from May 31, 2000 to May 31, 2001
Treasury stock
Exercise of stock options and stock awards
|
2001-05-31 |
| 2000-08-24 | 2685.66 | 未披露 | 定期报告 | 2000-07-31 |
| 2000-08-24 | 2686.50 | 未披露 |
更多>>
from May 31, 1999 to May 31, 2000
Treasury stock
Exercise of stock options and stock awards
|
2000-05-31 |
| 1999-08-18 | 2740.13 | 未披露 | 定期报告 | 1999-07-31 |
| 1999-08-18 | 2738.10 | 未披露 |
更多>>
from May 31, 1998 to May 31, 1999
Exercise of stock options and stock awards
Treasury stock
|
1999-05-31 |
| 1998-08-20 | 2770.73 | 未披露 | 定期报告 | 1998-07-31 |
| 1998-08-20 | 2770.40 | 未披露 |
更多>>
from May 31, 1997 to May 31, 1998
Three-for-two stock split
Exercise of stock options and stock awards
Issuance of common stock
Treasury stock
|
1998-05-31 |
| 1997-08-22 | 1834.12 | 未披露 | 定期报告 | 1997-07-31 |
| 1997-08-22 | 1820.40 | 未披露 |
更多>>
from May 31, 1996 to May 31, 1997
Issuance of common stock
Exercise of stock options and stock awards
Treasury stock purchased
|
1997-05-31 |
| 1996-08-20 | 1595.38 | 未披露 | 定期报告 | 1996-07-31 |
| 1996-08-20 | 1599.80 | 未披露 |
更多>>
from May 31, 1995 to May 31, 1996
Exercise of stock options and stock awards
Treasury stock purchased
|
1996-05-31 |
| 1995-08-11 | 1596.15 | 未披露 | 定期报告 | 1995-07-31 |
| 1995-08-11 | 1596.10 | 未披露 |
更多>>
from May 31, 1994 to May 31, 1995
Exercise of stock options and stock awards
Treasury stock purchased
|
1995-05-31 |
| 1994-08-24 | 1590.68 | 未披露 | 定期报告 | 1994-06-30 |
| 1994-08-24 | 1590.60 | 未披露 |
更多>>
from May 31, 1993 to May 31, 1994
Exercise of stock options and stock awards
Treasury stock purchased
|
1994-05-31 |
| 1994-08-24 | 1590.10 | 未披露 |
更多>>
from May 31, 1992 to May 31, 1993
Exercise of stock options, stock awards and employee stock purchases
Treasury stock purchased
|
1993-05-31 |
From November 30, 2023 to February 29, 2024
Repurchase of shares
Stock option activity
From August 31, 2023 to November 30, 2023
Stock option activity
From May 31, 2023 to August 31, 2023
Stock option activity
Restricted stock activity
From May 31, 2022 to May 31, 2023
Stock option activity
Restricted stock activity
Repurchase of shares
From November 30, 2022 to February 28, 2023
Restricted stock activity
Stock option activity
From August 31, 2022 to November 30, 2022
Stock option activity
Repurchase of shares
From May 31, 2021 to May 31, 2022
Stock option activity
Restricted stock activity
Repurchase of shares
From November 30, 2021 to February 28, 2022
Stock option activity
Repurchase of shares
From May 31, 2021 to August 31, 2021
Stock option activity
Restricted stock activity
From May 31, 2020 To May 31, 2021
Stock option activity
Restricted stock activity
From November 30, 2020 to February 28, 2021
Stock option activity
Restricted stock activity
From August 31, 2020 to November 30, 2020
Stock option activity
Restricted stock activity
From May 31, 2020 to August 31, 2020
Stock option activity
Restricted stock activity
From May 31, 2019 to May 31, 2020
Stock option activity
Restricted stock activity
Repurchase of shares
from November 30, 2019 to February 29, 2020
Stock option activity
Restricted stock activity
from August 31, 2019 to November 30, 2019
Stock option activity
Repurchase of shares
from May 31, 2019 to August 31, 2019
Stock option activity
Restricted stock activity
from May 31, 2018 to May 31, 2019
Stock option activity
Restricted stock activity
Repurchase of shares
From November 30, 2018 to February 28, 2019
Restricted stock activity
Repurchase of shares
From May 31, 2018 To November 30,2018
Stock option activity
Restricted stock activity
From May 31, 2018 To August 31, 2018
Restricted stock activity
Stock option activity
From May 31, 2017 To May 31, 2018
Restricted stock activity
Stock option activity
Repurchase of shares
From May 31, 2017 To February 28, 2018
Restricted stock activity
Stock option activity
Repurchase of shares
From May 31, 2017 To November 30, 2017
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2017 to August 31, 2017
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2016 to May 31, 2017
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2016 to February 28, 2017
Stock option activity
Restricted stock activity
Repurchase of shares
From May 31, 2016 to November 30, 2016
Restricted stock activity
Stock option activity
Repurchase of shares
From May 31, 2016 to August 31, 2016
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2015 to May 31, 2016
Stock option activity
Restricted stock activity
Repurchase of shares
from May 31, 2015 to February 29, 2016
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2015 to November 30, 2015
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2015 to August 31, 2015
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2014 to May 31, 2015
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2014 to February 28, 2015
Stock option activity
Restricted stock activity
Repurchase of shares
from May 31, 2014 to November 30, 2014
Stock option activity
Restricted stock activity
Repurchase of shares
from May 31, 2014 to August 31, 2014
Stock option activity
Restricted stock activity
from May 31, 2013 to May 31, 2014
Stock option activity
Restricted stock activity
Repurchase of shares
from May 31, 2013 to February 28, 2014
Stock option activity
Restricted stock activity
Repurchase of shares
From May 31, 2013 to November 30, 2013
Stock option activity
Restricted stock activity
from May 31, 2013 to August 31, 2013
Stock option activity
Restricted stock activity
from May 31, 2012 to May 31, 2013
Restricted stock activity
Stock option activity
Repurchase of shares
from May 31, 2012 to February 28, 2013
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
from May 31, 2012 to November 30, 2012
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
from May 31, 2012 to August 31, 2012
Restricted stock activity
Repurchase of shares
from May 31, 2011 to May 31, 2012
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
Bond hedge and warrant activity
from May 31, 2011 to February 29, 2012
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
From May 31, 2011 to November 30, 2011
Restricted stock activity
Exercise of stock options and stock awards
Repurchase of shares
Restricted stock activity
from May 31 2010 to May 31 2011
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
From May 31, 2010 to February 28, 2011
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
From May 31, 2010 to November 30, 2010
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
From May 31, 2010 to August 31, 2010
Exercise of stock options and stock awards
Restricted stock activity
Repurchase of shares
Bond hedge and warrant activity
From May 31 2009 to May 31 2010
Exercise of stock options and stock awards
Restricted stock activity
Bond hedge and warrant activity
From May 31 2009 to Feb 28 2010
Exercise of stock options and stock awards
Restricted stock activity
Bond hedge and warrant activity
from May 31, 2008 to May 31, 2009
Exercise of stock options and stock awards
Restricted stock activity
Bond hedge and warrant activity
from May 31, 2007 to May 31, 2008
Exercise of stock options and stock awards
Restricted stock activity
Common stock issued in debt for equity transaction
Repurchase of shares
from May 31, 2006 to May 31, 2007
Exercise of stock options and stock awards
from May 31, 2005 to May 31, 2006
Exercise of stock options and stock awards
Common stock issued in debt for equity transaction
from May 31, 2004 to May 31, 2005
Treasury stock
Exercise of stock options and stock awards
from May 31, 2003 to May 31, 2004
Treasury stock
Exercise of stock options and stock awards
from May 31, 2002 to May 31, 2003
Exercise of stock options and stock awards
Treasury stock
from May 31, 2001 to May 31, 2002
Issuance of common stock
Exercise of stock options and stock awards Awards
Treasury stock
from May 31, 2000 to May 31, 2001
Treasury stock
Exercise of stock options and stock awards
from May 31, 1999 to May 31, 2000
Treasury stock
Exercise of stock options and stock awards
from May 31, 1998 to May 31, 1999
Exercise of stock options and stock awards
Treasury stock
from May 31, 1997 to May 31, 1998
Three-for-two stock split
Exercise of stock options and stock awards
Issuance of common stock
Treasury stock
from May 31, 1996 to May 31, 1997
Issuance of common stock
Exercise of stock options and stock awards
Treasury stock purchased
from May 31, 1995 to May 31, 1996
Exercise of stock options and stock awards
Treasury stock purchased
from May 31, 1994 to May 31, 1995
Exercise of stock options and stock awards
Treasury stock purchased
from May 31, 1993 to May 31, 1994
Exercise of stock options and stock awards
Treasury stock purchased
from May 31, 1992 to May 31, 1993
Exercise of stock options, stock awards and employee stock purchases
Treasury stock purchased