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股本结构

单位:万股
公告日期 2024-03-14 2024-03-14 2023-11-13 2023-11-13 2023-08-11 2023-08-11
证券总股本 11842.80 11225.14 11444.91 11039.62 11429.52 11030.60
普通股本 11842.80 11225.14 11444.91 11039.62 11429.52 11030.60
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 2024-03-07 2023-12-30 2023-11-03 2023-09-30 2023-08-04 2023-07-01
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
2024-03-14 11842.80 未披露 定期报告 2024-03-07
2024-03-14 11225.14 未披露
更多>>
From December 31, 2022 to December 30, 2023 Issuance of common stock, net of costs Vesting of restricted stock
2023-12-30
2023-11-13 11444.91 未披露 定期报告 2023-11-03
2023-11-13 11039.62 未披露
更多>>
From July 1, 2023 to September 30, 2023 Vesting of restricted stock
2023-09-30
2023-08-11 11429.52 未披露 定期报告 2023-08-04
2023-08-11 11030.60 未披露
更多>>
From April 1, 2023 to July 1, 2023 Vesting of restricted stock
2023-07-01
2023-05-11 11143.20 未披露 定期报告 2023-05-05
2023-04-19 11137.67 未披露 定期报告 2023-04-10
2023-05-11 10990.10 未披露
更多>>
From December 31, 2022 to April 1, 2023 Issuance of common stock and pre-funded warrants, net of costs Vesting of restricted stock
2023-04-01
2023-03-17 11154.83 未披露 定期报告 2023-03-10
2023-01-26 10910.74 未披露
更多>>
Common stock offered by the company 14,000,000 shares
2023-01-27
2023-03-14 9288.35 未披露
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From December 25, 2021 to December 31, 2022 Vesting of restricted stock Issuance of common stock, net of costs Sale of treasury stock, net of costs
2022-12-31
2022-11-08 9512.45 未披露 定期报告 2022-10-28
2022-11-08 9262.71 未披露
更多>>
From June 25, 2022 to September 24, 2022 Sale of registered stock Vesting of restricted stock
2022-09-24
2022-08-04 9363.74 未披露 定期报告 2022-08-03
2022-08-04 9180.26 未披露
更多>>
From March 26, 2022 to June 25, 2022 Sale of registered stock Vesting of restricted stock
2022-06-25
2022-05-05 9191.43 未披露 定期报告 2022-05-04
2022-04-21 9189.19 未披露 定期报告 2022-03-30
2022-05-05 9009.72 未披露
更多>>
From December 25, 2021 to March 26, 2022 Vesting of restricted stock
2022-03-26
2022-03-14 9224.05 未披露 定期报告 2022-03-11
2022-03-14 8998.85 未披露
更多>>
From December 26, 2020 to December 25, 2021 Vesting of restricted stock Restricted stock for tax withholding obligations Issuance of common stock Sale of treasury stock, net of costs
2021-12-25
2021-11-04 9219.02 未披露 定期报告 2021-11-02
2021-11-04 8954.65 未披露
更多>>
From June 26, 2021 to September 25, 2021 Sale of registered stock
2021-09-25
2021-08-05 9149.02 未披露 定期报告 2021-08-03
2021-08-05 8894.65 未披露
更多>>
From March 27, 2021 to June 26, 2021 Vesting of restricted stock Sale of registered stock
2021-06-26
2021-05-06 9128.49 未披露 定期报告 2021-05-05
2021-04-23 9128.85 未披露 定期报告 2021-03-30
2021-05-06 8879.42 未披露
更多>>
From December 31, 2020 To March 27, 2021 Vesting of restricted stock Restricted stock for tax withholding obligations
2021-03-27
2021-03-05 9128.49 未披露 定期报告 2021-03-01
2021-03-05 8544.34 未披露
更多>>
From December 28, 2019 to December 26, 2020 Vesting of restricted stock Restricted stock for tax withholding obligations Sale of registered stock, net of costs
2020-12-26
2020-11-05 8505.30 未披露 定期报告 2020-11-04
2020-11-05 8259.64 未披露 定期报告 2020-09-26
2020-08-06 8496.30 未披露 定期报告 2020-08-04
2020-08-06 8497.03 未披露 定期报告 2020-06-27
2020-05-07 8491.03 未披露 定期报告 2020-05-06
2020-05-07 8491.40 未披露 定期报告 2020-03-28
2020-03-11 8491.40 未披露 定期报告 2020-03-09
2020-01-21 8493.25 未披露 定期报告 2020-01-09
2020-03-11 8253.64 未披露
更多>>
from December 29, 2018 to December 28, 2019 Vesting of restricted stock Restricted stock for tax withholding obligations Sale of registered stock, net of costs
2019-12-28
2019-11-07 8401.68 未披露 定期报告 2019-11-04
2019-11-07 8205.37 未披露 定期报告 2019-09-28
2019-08-08 8408.63 未披露 定期报告 2019-08-05
2019-08-08 8205.37 未披露
更多>>
From March 30, 2019 to June 29, 2019 Vesting of restricted stock Sale of registered stock
2019-06-29
2019-05-09 8413.36 未披露 定期报告 2019-05-06
2019-04-15 8343.81 未披露 定期报告 2019-04-01
2019-05-09 8128.72 未披露
更多>>
from December 29, 2018 to March 30, 2019 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations Sale of registered stock
2019-03-30
2019-03-14 7628.21 未披露 定期报告 2019-03-08
2019-03-14 7400.88 未披露
更多>>
from December 30, 2017 to December 29, 2018 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations
2018-12-29
2018-11-26 7661.15 未披露 定期报告 2018-11-23
2018-11-08 7313.53 未披露
更多>>
from December 30, 2017 to September 29, 2018 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations
2018-09-29
2018-08-09 7662.75 未披露 定期报告 2018-08-06
2018-08-09 7313.53 未披露
更多>>
from December 30, 2017 to June 30, 2018 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations
2018-06-30
2018-05-10 7652.95 未披露 定期报告 2018-05-07
2018-05-10 7307.88 未披露
更多>>
from December 30, 2017 to March 31, 2018 Vesting of restricted stock
2018-03-31
2018-03-23 7652.45 未披露 定期报告 2018-03-14
2018-03-23 7305.88 未披露
更多>>
from December 31, 2016 to December 30, 2017 Vesting of restricted stock Restricted stock for tax withholding obligations
2017-12-30
2017-11-09 7533.66 未披露 定期报告 2017-11-06
2017-11-09 7218.77 未披露
更多>>
from December 31, 2016 to September 30, 2017 Vesting of restricted stock
2017-09-30
2017-08-10 7515.66 未披露 定期报告 2017-08-04
2017-08-10 7218.77 未披露 定期报告 2017-07-01
2017-05-11 7519.54 未披露 定期报告 2017-05-05
2017-05-01 7513.54 未披露 定期报告 2017-04-21
2017-05-11 6453.87 未披露 定期报告 2017-04-01
2017-03-23 6754.64 未披露 定期报告 2017-03-17
2017-03-23 6453.87 未披露
更多>>
From December 31, 2015 to December 31, 2016 Vesting of restricted stock Restricted stock for tax withholding obligations
2016-12-31
2017-03-23 6674.05 未披露 定期报告 2016-11-04
2017-03-23 6404.80 未披露
更多>>
From December 26, 2015 to September 24, 2016 Vesting of restricted stock Restricted stock for tax withholdings
2016-09-24
2016-08-03 6676.95 未披露 定期报告 2016-07-29
2016-08-03 6403.93 未披露
更多>>
From December 26, 2015 to June 25, 2016 Vesting of restricted stock Restricted stock for tax withholdings
2016-06-25
2016-05-04 6667.33 未披露 定期报告 2016-04-29
2016-05-04 6397.93 未披露
更多>>
From December 26, 2015 to March 26, 2016 Vesting of restricted stock Restricted stock for tax withholdings
2016-03-26
2016-04-11 6678.19 未披露 定期报告 2016-03-24
2016-03-04 6667.39 未披露 定期报告 2016-02-26
2016-03-04 6397.74 未披露
更多>>
from December 27, 2014 to December 26, 2015 Exercise of stock options and warrants Vesting of restricted stock Restricted stock for tax withholding obligations
2015-12-26
2015-11-05 6646.79 未披露 定期报告 2015-10-30
2015-11-05 6349.93 未披露
更多>>
From December 27, 2014 to September 26, 2015 Vesting of restricted stock Exercise of stock options and warrants Restricted stock for tax withholdings
2015-09-26
2015-08-06 6654.61 未披露 定期报告 2015-08-04
2015-08-06 6329.70 未披露
更多>>
From December 27, 2014 to June 27, 2015 Vesting of restricted stock Exercise of stock options and warrants Restricted stock for tax withholdings
2015-06-27
2015-05-11 6649.58 未披露 定期报告 2015-05-08
2015-05-11 6308.87 未披露
更多>>
From December 27, 2014 to March 28, 2015 Exercise of stock warrants
2015-03-28
2015-04-07 6654.31 未披露 定期报告 2015-03-20
2015-03-12 6579.04 未披露 定期报告 2015-03-06
2015-03-12 6307.77 未披露
更多>>
From December 28, 2013 to December 27, 2014 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
2014-12-27
2014-11-06 6590.79 未披露 定期报告 2014-10-31
2014-11-06 6264.87 未披露
更多>>
from December 28, 2013 to September 27, 2014 Vesting of restricted stock Exercise of stock options Restricted stock for tax withholdings Treasury stock purchases
2014-09-27
2014-08-07 6606.06 未披露 定期报告 2014-08-01
2014-08-07 6264.35 未披露
更多>>
from December 28, 2013 to June 28, 2014 Vesting of restricted stock Exercise of stock options Treasury stock purchases
2014-06-28
2014-05-08 6596.67 未披露 定期报告 2014-05-02
2014-05-08 6252.55 未披露
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from December 28, 2013 to March 29, 2014 Exercise of stock options Treasury stock purchases
2014-03-29
2014-03-17 6579.04 未披露 定期报告 2014-03-14
2014-03-17 6256.09 未披露
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From December 31,2012 to December 28,2013 Restricted stock for tax withholding obligations Treasury stock purchase
2013-12-28
2013-11-05 6642.01 未披露 定期报告 2013-11-01
2013-11-05 6615.79 未披露 定期报告 2013-10-30
2013-10-30 6665.22 未披露 定期报告 2013-10-25
2013-11-05 6238.65 未披露
更多>>
from December 29, 2012 to September 28, 2013 Vesting of restricted stock Treasury stock purchases
2013-09-28
2013-08-09 6691.91 未披露 定期报告 2013-08-07
2013-08-08 6743.51 未披露 定期报告 2013-08-02
2013-08-08 6341.80 未披露
更多>>
from December 29, 2012 to June 29, 2013 Vesting of restricted stock Treasury stock purchases
2013-06-29
2013-05-09 6631.62 未披露 定期报告 2013-05-03
2013-05-09 6393.55 未披露
更多>>
from December 29, 2012 to March 30, 2013 Vesting of restricted stock
2013-03-30
2013-04-05 6651.86 未披露 定期报告 2013-03-20
2013-03-18 6657.86 未披露 定期报告 2013-03-15
2013-03-18 6383.55 未披露
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from December 31, 2011 to December 29, 2012 Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
2012-12-29
2012-11-08 6629.54 未披露 定期报告 2012-11-02
2012-11-08 6341.43 未披露
更多>>
from December 31, 2011 to September 29, 2012 Vesting of restricted stock Restricted stock for tax withholdings Treasury stock purchase
2012-09-29
2012-08-09 6630.38 未披露 定期报告 2012-08-03
2012-08-09 6341.53 未披露
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from December 31, 2011 to June 30, 2012 Vesting of restricted stock Restricted stock for tax withholdings Treasury stock purchase
2012-06-30
2012-05-10 6682.49 未披露 定期报告 2012-05-04
2012-05-10 6401.57 未披露
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from December 31, 2011 to March 31, 2012 Treasury stock purchase
2012-03-31
2012-03-15 6701.70 未披露 定期报告 2012-03-09
2012-03-15 6436.15 未披露
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from December 25, 2010 to December 31, 2011 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
2011-12-31
2011-11-03 6784.56 未披露 定期报告 2011-10-28
2011-11-03 6413.41 未披露
更多>>
from December 25, 2010 to September 24, 2011 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
2011-09-24
2011-08-04 6724.61 未披露 定期报告 2011-07-29
2011-08-04 6441.97 未披露
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from dec 25 2010 to jun 25 2011 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2011-06-25
2011-05-05 6456.24 未披露 定期报告 2011-04-29
2011-05-05 6462.61 未披露
更多>>
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2011-03-26
2011-03-10 6728.22 未披露 定期报告 2011-03-04
2011-03-10 6477.52 未披露
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Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2010-12-25
2010-11-03 6486.94 未披露 定期报告 2010-10-29
2010-11-03 6487.72 未披露
更多>>
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2010-09-25
2010-08-03 6665.67 未披露 定期报告 2010-07-30
2010-08-03 6663.57 未披露
更多>>
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2010-06-26
2010-03-08 6661.39 未披露 定期报告 2010-03-05
2010-03-08 6660.60 未披露
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from December 27, 2008 to December 26, 2009 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
2009-12-26
2009-03-10 6825.77 未披露
更多>>
from December 29, 2007 to December 27, 2008 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2008-12-27
2008-03-31 7193.59 未披露 定期报告 2008-03-21
2008-03-17 7104.34 未披露 定期报告 2008-03-14
2008-03-31 6774.20 未披露
更多>>
from December 30, 2006 to December 29, 2007 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
2007-12-29
2008-03-17 6742.79 未披露
更多>>
from December 31, 2005 to December 30, 2006 Exercise of stock options Change in accounting for stock compensation Forfeiture of nonvested stock Restricted stock for tax withholding obligations Treasury stock purchase
2006-12-30
2006-03-21 6861.48 未披露 定期报告 2006-03-17
2006-03-21 6934.18 未披露
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from December 25, 2004 to December 31, 2005 Exercise of stock options Issuance of restricted stock Forfeiture of unvested restricted stock Treasury stock purchases Treasury stock purchases
2005-12-31
2005-03-25 6972.44 未披露 定期报告 2005-03-15
2005-03-25 6994.85 未披露
更多>>
from December 31, 2003 to December 25, 2004 Exercise of stock options Issuance of restricted stock and options Treasury stock purchases
2004-12-25
2004-03-15 7005.69 未披露 定期报告 2004-03-05
2004-03-15 7004.50 未披露
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from December 31, 2002 to December 31, 2003 Exercise of stock options Issuance of restricted stock
2003-12-31
2003-03-14 6939.13 未披露
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from December 31, 2001 to December 31, 2002 Exercise of stock options
2002-12-31
2002-03-20 6911.23 未披露 定期报告 2002-02-28
2002-03-20 6904.55 未披露
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from December 31, 2000 to December 31, 2001 Issuance of common stock, net of issuance costs of $1,340,563 Exercise of stock options
2001-12-31
2001-04-02 6492.50 未披露 定期报告 2001-03-30
2001-04-02 6468.11 未披露
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from December 31, 1999 to December 31, 2000 Issuance of common stock and assumption of obligations under vested stock options, for acquisition Exercise of stock options All share data give retroactive effect to the 2 for 1 stock splits effected in the form of a stock dividends for shareholders of record as of June 30, 2000, effected on July 13, 2000
2000-12-31
2000-03-30 3136.93 未披露 定期报告 2000-03-23
2000-03-30 3014.94 未披露
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from December 31, 1998 to December 31, 1999 Issuance of common stock, net of issuance costs of $4,902,000 Repurchase of common stock Exercise of stock options All shares give retroactive effect to the 2 for 1 stock split effected in the form of a stock dividend for shareholders of record as of December 20, 1999, and effected on December 29, 1999.
1999-12-31
1999-03-30 1232.50 未披露 定期报告 1999-03-23
1999-03-30 1226.86 未披露
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from December 31, 1997 to December 31, 1998 Issuance of common stock, net of issuance costs of $1,829,000 Exercise of stock options
1998-12-31
1998-03-27 1214.67 未披露 定期报告 1998-03-23
1998-03-27 1112.21 未披露
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from December 31, 1996 to December 31, 1997 Exercise of stock options
1997-12-31
1997-03-31 1093.88 未披露 定期报告 1997-03-24
1997-03-31 1093.14 未披露
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from December 31, 1995 to December 31, 1996 Exercise of stock options
1996-12-31
1997-03-31 1091.50 未披露
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from December 31, 1994 to December 31, 1995 Issuance of common stock, net of issuance of $397,143 Purchase of common stock Exercise of stock options
1995-12-31
From December 31, 2022 to December 30, 2023 Issuance of common stock, net of costs Vesting of restricted stock
From July 1, 2023 to September 30, 2023 Vesting of restricted stock
From April 1, 2023 to July 1, 2023 Vesting of restricted stock
From December 31, 2022 to April 1, 2023 Issuance of common stock and pre-funded warrants, net of costs Vesting of restricted stock
Common stock offered by the company 14,000,000 shares
From December 25, 2021 to December 31, 2022 Vesting of restricted stock Issuance of common stock, net of costs Sale of treasury stock, net of costs
From June 25, 2022 to September 24, 2022 Sale of registered stock Vesting of restricted stock
From March 26, 2022 to June 25, 2022 Sale of registered stock Vesting of restricted stock
From December 25, 2021 to March 26, 2022 Vesting of restricted stock
From December 26, 2020 to December 25, 2021 Vesting of restricted stock Restricted stock for tax withholding obligations Issuance of common stock Sale of treasury stock, net of costs
From June 26, 2021 to September 25, 2021 Sale of registered stock
From March 27, 2021 to June 26, 2021 Vesting of restricted stock Sale of registered stock
From December 31, 2020 To March 27, 2021 Vesting of restricted stock Restricted stock for tax withholding obligations
From December 28, 2019 to December 26, 2020 Vesting of restricted stock Restricted stock for tax withholding obligations Sale of registered stock, net of costs
from December 29, 2018 to December 28, 2019 Vesting of restricted stock Restricted stock for tax withholding obligations Sale of registered stock, net of costs
From March 30, 2019 to June 29, 2019 Vesting of restricted stock Sale of registered stock
from December 29, 2018 to March 30, 2019 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations Sale of registered stock
from December 30, 2017 to December 29, 2018 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations
from December 30, 2017 to September 29, 2018 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations
from December 30, 2017 to June 30, 2018 Vesting of restricted stock Repurchases of restricted stock to satisfy tax withholding obligations
from December 30, 2017 to March 31, 2018 Vesting of restricted stock
from December 31, 2016 to December 30, 2017 Vesting of restricted stock Restricted stock for tax withholding obligations
from December 31, 2016 to September 30, 2017 Vesting of restricted stock
From December 31, 2015 to December 31, 2016 Vesting of restricted stock Restricted stock for tax withholding obligations
From December 26, 2015 to September 24, 2016 Vesting of restricted stock Restricted stock for tax withholdings
From December 26, 2015 to June 25, 2016 Vesting of restricted stock Restricted stock for tax withholdings
From December 26, 2015 to March 26, 2016 Vesting of restricted stock Restricted stock for tax withholdings
from December 27, 2014 to December 26, 2015 Exercise of stock options and warrants Vesting of restricted stock Restricted stock for tax withholding obligations
From December 27, 2014 to September 26, 2015 Vesting of restricted stock Exercise of stock options and warrants Restricted stock for tax withholdings
From December 27, 2014 to June 27, 2015 Vesting of restricted stock Exercise of stock options and warrants Restricted stock for tax withholdings
From December 27, 2014 to March 28, 2015 Exercise of stock warrants
From December 28, 2013 to December 27, 2014 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
from December 28, 2013 to September 27, 2014 Vesting of restricted stock Exercise of stock options Restricted stock for tax withholdings Treasury stock purchases
from December 28, 2013 to June 28, 2014 Vesting of restricted stock Exercise of stock options Treasury stock purchases
from December 28, 2013 to March 29, 2014 Exercise of stock options Treasury stock purchases
From December 31,2012 to December 28,2013 Restricted stock for tax withholding obligations Treasury stock purchase
from December 29, 2012 to September 28, 2013 Vesting of restricted stock Treasury stock purchases
from December 29, 2012 to June 29, 2013 Vesting of restricted stock Treasury stock purchases
from December 29, 2012 to March 30, 2013 Vesting of restricted stock
from December 31, 2011 to December 29, 2012 Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
from December 31, 2011 to September 29, 2012 Vesting of restricted stock Restricted stock for tax withholdings Treasury stock purchase
from December 31, 2011 to June 30, 2012 Vesting of restricted stock Restricted stock for tax withholdings Treasury stock purchase
from December 31, 2011 to March 31, 2012 Treasury stock purchase
from December 25, 2010 to December 31, 2011 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
from December 25, 2010 to September 24, 2011 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
from dec 25 2010 to jun 25 2011 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
from December 27, 2008 to December 26, 2009 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations Treasury stock purchase
from December 29, 2007 to December 27, 2008 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
from December 30, 2006 to December 29, 2007 Exercise of stock options Vesting of restricted stock Restricted stock for tax withholding obligations
from December 31, 2005 to December 30, 2006 Exercise of stock options Change in accounting for stock compensation Forfeiture of nonvested stock Restricted stock for tax withholding obligations Treasury stock purchase
from December 25, 2004 to December 31, 2005 Exercise of stock options Issuance of restricted stock Forfeiture of unvested restricted stock Treasury stock purchases Treasury stock purchases
from December 31, 2003 to December 25, 2004 Exercise of stock options Issuance of restricted stock and options Treasury stock purchases
from December 31, 2002 to December 31, 2003 Exercise of stock options Issuance of restricted stock
from December 31, 2001 to December 31, 2002 Exercise of stock options
from December 31, 2000 to December 31, 2001 Issuance of common stock, net of issuance costs of $1,340,563 Exercise of stock options
from December 31, 1999 to December 31, 2000 Issuance of common stock and assumption of obligations under vested stock options, for acquisition Exercise of stock options All share data give retroactive effect to the 2 for 1 stock splits effected in the form of a stock dividends for shareholders of record as of June 30, 2000, effected on July 13, 2000
from December 31, 1998 to December 31, 1999 Issuance of common stock, net of issuance costs of $4,902,000 Repurchase of common stock Exercise of stock options All shares give retroactive effect to the 2 for 1 stock split effected in the form of a stock dividend for shareholders of record as of December 20, 1999, and effected on December 29, 1999.
from December 31, 1997 to December 31, 1998 Issuance of common stock, net of issuance costs of $1,829,000 Exercise of stock options
from December 31, 1996 to December 31, 1997 Exercise of stock options
from December 31, 1995 to December 31, 1996 Exercise of stock options
from December 31, 1994 to December 31, 1995 Issuance of common stock, net of issuance of $397,143 Purchase of common stock Exercise of stock options