离子地球物理
IO

股本结构

单位：万股
公告日期 2021-11-03 2021-11-03 2021-07-08 2021-08-12 2021-04-26 2021-05-06
证券总股本 2961.70 2862.73 2963.75 2857.79 2881.12 1734.42
普通股本 2961.70 2862.73 2963.75 2857.79 2881.12 1734.42
优先股 未披露 未披露 0.0001 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 2021-11-01 2021-09-30 2021-07-07 2021-06-30 2021-04-20 2021-03-31
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
2021-11-03 2961.70 未披露 定期报告 2021-11-01
2021-11-03 2862.73 未披露
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from July 1, 2021 to September 30, 2021 Vested restricted stock cancelled for employee minimum income taxes Vesting of restricted stock units/awards
2021-09-30
2021-07-08 2963.75 0.0001 定期报告 2021-07-07
2021-08-12 2857.79 未披露
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From March 31, 2021 to June 30, 2021 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes Shares issued as part of the Restructuring Transactions
2021-06-30
2021-04-26 2881.12 未披露 定期报告 2021-04-20
2021-05-06 1734.42 未披露
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From December 31, 2020 to March 31, 2021 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes Public equity offering
2021-03-31
2021-03-10 1796.04 未披露 定期报告 2021-03-10
2021-03-03 1796.34 未披露 定期报告 2021-03-02
2021-02-18 1796.90 未披露
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1.Common stock offered by the company 2,990,001 shares. 2.The number of shares of common stock to be outstanding after this offering is based on 14,979,013 shares of common stock outstanding as of February 12, 2021.
2021-02-18
2021-02-12 1497.90 未披露 定期报告 2021-02-11
2021-01-29 1498.15 未披露 定期报告 2021-01-28
2021-01-22 1498.15 未披露 定期报告 2021-01-22
2021-02-12 1433.31 未披露
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from December 31, 2019 to December 31, 2020 Exercise of stock options Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
2020-12-31
2020-11-05 1499.35 未披露 定期报告 2020-11-02
2020-11-05 1431.55 未披露
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From July 1, 2020 to September 30, 2020 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
2020-09-30
2020-08-06 1500.62 未披露 定期报告 2020-08-03
2020-08-06 1424.58 未披露
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From April 1, 2020 to June 30, 2020 Exercise of stock options Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
2020-06-30
2020-05-07 1503.66 未披露 定期报告 2020-05-04
2020-05-07 1424.01 未披露
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from January 1, 2020 to March 31, 2020 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
2020-03-31
2020-04-22 1502.76 未披露 定期报告 2020-03-27
2020-02-06 1422.48 未披露
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from December 31, 2019 to December 31, 2019 Exercise of stock options Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
2019-12-31
2019-12-19 1503.97 未披露 定期报告 2019-12-19
2019-10-31 1420.17 未披露
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from July 1, 2019 to September 30, 2019 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes
2019-09-30
2019-08-01 1417.78 未披露 定期报告 2019-07-29
2019-08-01 1417.16 未披露
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from April 1, 2019 to June 30,2019 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes
2019-06-30
2019-05-02 1406.95 未披露
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from January 1, 2019 to March 31, 2019 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes
2019-03-31
2019-04-11 1495.99 未披露 定期报告 2019-03-29
2019-02-07 1401.56 未披露
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from December 31, 2017 to December 31, 2018 Exercise of stock options Vesting of restricted stock units/awards Public equity offering Restricted stock cancelled for employee minimum income taxes
2018-12-31
2018-11-01 1411.73 未披露 定期报告 2018-10-29
2018-08-02 1400.30 未披露 定期报告 2018-06-30
2018-05-03 1390.95 未披露 定期报告 2018-03-31
2018-04-13 1407.77 未披露 定期报告 2018-03-29
2018-02-08 1202.22 未披露 定期报告 2018-02-06
2018-02-08 1201.97 未披露
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from December 31, 2016 to December 31, 2017 Exercise of stock options Vesting of restricted stock units/awards Employee purchases of unregistered shares of common stock Restricted stock cancelled for employee minimum income taxes
2017-12-31
2017-11-02 1189.62 未披露 定期报告 2017-09-30
2017-08-03 1188.37 未披露 定期报告 2017-06-30
2017-05-04 1187.16 未披露 定期报告 2017-03-31
2017-02-09 1179.24 未披露 定期报告 2017-02-06
2017-02-09 1179.24 未披露
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from December 31, 2015 to December 31, 2016 Vesting of restricted stock units/awards Purchase of treasury shares Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP Issuance of stock in bond exchange
2016-12-31
2016-11-23 1207.30 未披露 定期报告 2016-11-22
2016-11-03 1178.63 未披露 定期报告 2016-09-30
2016-09-23 1208.65 未披露 定期报告 2016-09-21
2016-08-04 1178.62 未披露 定期报告 2016-06-30
2016-05-05 1202.64 未披露 定期报告 2016-05-04
2016-05-05 1058.01 未披露 定期报告 2016-03-31
2016-02-11 1056.76 未披露
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From December 31, 2014 to February 5, 2016 Vesting of restricted stock units/awards Purchase of treasury shares Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP On February 4, 2016, we completed a one-for-fifteen reverse stock split, and our stock began trading on a reverse-split adjusted basis on February 5, 2016.
2016-02-05
2015-12-21 16239.51 未披露 定期报告 2015-12-18
2015-11-05 16479.03 未披露 定期报告 2015-09-30
2015-08-06 16470.62 未披露 定期报告 2015-06-30
2015-05-07 16468.70 未披露 定期报告 2015-03-31
2015-02-17 16448.41 未披露
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from December 31, 2013 to December 31, 2014 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
2014-12-31
2014-11-06 16420.36 未披露 定期报告 2014-09-30
2014-08-07 16408.60 未披露 定期报告 2014-06-30
2014-05-01 16405.43 未披露 定期报告 2014-04-21
2014-04-15 16528.64 未披露 定期报告 2014-04-01
2014-05-01 16404.93 未披露 定期报告 2014-03-31
2014-02-24 16373.78 未披露
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from December 31, 2012 to December 31, 2013 Conversion payment of preferred stock Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
2013-12-31
2013-11-15 16330.67 未披露 定期报告 2013-10-28
2013-11-15 16329.90 未披露 定期报告 2013-09-30
2013-08-08 15705.38 未披露 定期报告 2013-07-31
2013-08-08 15702.26 未披露 定期报告 2013-06-30
2013-05-01 15685.14 未披露 定期报告 2013-04-23
2013-05-01 15666.56 未披露 定期报告 2013-03-31
2013-02-19 15639.07 未披露 定期报告 2013-02-12
2013-02-19 15635.69 未披露
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from December 31, 2011 to December 31, 2012 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
2012-12-31
2012-11-09 15600.77 未披露 定期报告 2012-11-02
2012-11-09 15598.57 未披露 定期报告 2012-09-30
2012-08-07 15585.04 未披露 定期报告 2012-07-31
2012-08-07 15584.69 未披露 定期报告 2012-06-30
2012-05-03 15560.48 未披露 定期报告 2012-04-27
2012-05-03 15560.07 未披露 定期报告 2012-03-31
2012-02-24 15558.50 未披露 定期报告 2012-02-17
2012-02-24 15547.98 未披露
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from December 31, 2010 to December 31, 2011 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
2011-12-31
2011-11-03 15520.37 未披露 定期报告 2011-10-28
2011-11-03 15519.54 未披露 定期报告 2011-09-30
2011-08-04 15513.88 未披露 定期报告 2011-07-27
2011-08-04 15511.83 未披露 定期报告 2011-06-30
2011-05-05 15510.30 未披露 定期报告 2011-04-29
2011-05-05 15495.74 未披露 定期报告 2011-03-31
2011-02-24 15302.89 未披露 定期报告 2011-02-18
2011-02-24 15287.07 未披露
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from December 31, 2009 to December 31, 2010 Issuance of stock to BGP Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Conversion of cumulative convertible preferred stock
2010-12-31
2010-11-04 15243.29 未披露 定期报告 2010-10-29
2010-11-04 15243.20 未披露 定期报告 2010-09-30
2010-08-05 15234.14 未披露 定期报告 2010-07-19
2010-08-05 15230.64 未披露 定期报告 2010-06-30
2010-05-06 15227.97 未披露 定期报告 2010-04-30
2010-05-06 14261.69 未披露 定期报告 2010-03-31
2010-03-01 11869.60 未披露 定期报告 2010-02-22
2010-03-01 11868.87 7.00
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from December 31, 2008 to December 31, 2009 Purchase of treasury stock Issuance of stock Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
2009-12-31
2009-03-02 9973.50 未披露 定期报告 2009-02-12
2009-03-02 9962.19 7.00
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from December 31, 2007 to December 31, 2008 Reclassification of preferred stock to equity Purchase of treasury stock Issuance of stock for ARAM acquisition Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP Conversion of 5.5% convertible senior notes Issuance of treasury stock
2008-12-31
2008-02-27 9399.67 未披露 定期报告 2008-02-14
2008-02-27 9384.76 未披露
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from December 31, 2006 to December 31, 2007 Purchase treasury stock Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP Conversion of 5.5% convertible senior notes Issuance of treasury stock
2007-12-31
2007-03-15 8023.89 未披露 定期报告 2007-02-28
2007-03-15 8012.35 未披露
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from December 31, 2005 to December 31, 2006 Impact of adoption of SFAS 123R on restricted stock Purchase treasury stock Exercise of stock options Vesting of restricted stock units/awards Issuance of stock for the ESPP Issuance of treasury stock
2006-12-31
2006-03-31 7992.50 未披露 定期报告 2006-03-24
2006-03-31 7976.43 未披露
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from December 31, 2004 to December 31, 2005 Issuance of restricted stock awards Cancellation of restricted stock awards Purchase treasury stock Exercise of stock options Vesting of restricted stock units Issuance of stock for the Employee Stock Purchase Plan Issuance of treasury stock
2005-12-31
2005-03-16 7867.52 未披露 定期报告 2005-03-01
2005-03-16 7856.17 未披露
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from December 31, 2003 to December 31, 2004 Issuance of restricted stock awards Cancellation of restricted stock awards Purchase treasury stock Exercise of stock options Issuance of common stock Issuance of common stock in business acquisition Issuance of stock for the Employee Stock Purchase Plan Issuance of treasury stock
2004-12-31
2004-03-12 5310.61 未披露 定期报告 2004-03-02
2004-03-12 5139.03 未披露
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from December 31, 2002 to December 31, 2003 Issuance of restricted stock award Cancellation of restricted stock award Purchase treasury stock Exchange of warrant obligation Issuance of stock for the Employee Stock Purchase Plan Issuance of treasury stock
2003-12-31
2003-03-31 5125.09 未披露 定期报告 2003-03-14
2003-03-31 5107.89 未披露
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from December 31, 2001 to December 31, 2002 Repurchase and exchange of preferred stock Issuance of restricted stock award Cancellation of restricted stock award Purchase treasury stock Exercise of stock options Issuance of stock for the Employee Stock Purchase Plan
2002-12-31
2002-04-01 5091.19 未披露 定期报告 2002-03-01
2002-04-01 5086.57 5.50
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from December 31, 2000 to December 31, 2001 Purchase treasury stock Preferred dividend Issuance of stock for the Employee Stock Purchase Plan
2001-12-31
2001-03-19 5093.64 5.50
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from May 31, 2000 to December 31, 2000 Purchase treasury stock Exercise of stock options and related tax benefits Issuance of stock for the Employee Stock Purchase Plan
2000-12-31
2000-08-17 5078.91 未披露 定期报告 2000-06-30
2000-08-17 5074.42 5.50
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from May 31, 1999 to May 31, 2000 Issuance of restricted stock award Cancelation of restricted stock awards Purchase treasury stock Reissue treasury stock Exercise of stock options and related tax benefits Issuance of stock for the Employee Stock Purchase Plan
2000-05-31
1999-08-20 5066.39 未披露 定期报告 1999-06-30
1999-08-20 5066.34 4.00
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from May 31, 1998 to May 31, 1999 Issuance of restricted stock Issuance of stock in conjunction with Business acquisition Exercise of stock options and related tax benefits Issuance of stock for the Employee Stock Purchase Plan Preferred stock offering
1999-05-31
1998-07-29 4458.46 未披露
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from May 31, 1997 to May 31, 1998 Issuance of restricted stock Issuance of stock in Conjunction with business Acquisition Exercise of stock options and Related tax benefits Issuance of stock for the Employee Stock Purchase Plan
1998-05-31
1997-08-28 4322.29 未披露 定期报告 1997-06-30
1997-08-28 4328.09 未披露
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from May 31, 1996 to May 31, 1997 Exercise of stock options and related tax benefits
1997-05-31
1996-07-22 4296.97 未披露
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from May 31, 1995 to May 31, 1996 Exercise of stock options Public offering
1996-05-31
from July 1, 2021 to September 30, 2021 Vested restricted stock cancelled for employee minimum income taxes Vesting of restricted stock units/awards
From March 31, 2021 to June 30, 2021 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes Shares issued as part of the Restructuring Transactions
From December 31, 2020 to March 31, 2021 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes Public equity offering
1.Common stock offered by the company 2,990,001 shares. 2.The number of shares of common stock to be outstanding after this offering is based on 14,979,013 shares of common stock outstanding as of February 12, 2021.
from December 31, 2019 to December 31, 2020 Exercise of stock options Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
From July 1, 2020 to September 30, 2020 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
From April 1, 2020 to June 30, 2020 Exercise of stock options Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
from January 1, 2020 to March 31, 2020 Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
from December 31, 2019 to December 31, 2019 Exercise of stock options Vesting of restricted stock units/awards Vested restricted stock cancelled for employee minimum income taxes
from July 1, 2019 to September 30, 2019 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes
from April 1, 2019 to June 30,2019 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes
from January 1, 2019 to March 31, 2019 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes
from December 31, 2017 to December 31, 2018 Exercise of stock options Vesting of restricted stock units/awards Public equity offering Restricted stock cancelled for employee minimum income taxes
from December 31, 2016 to December 31, 2017 Exercise of stock options Vesting of restricted stock units/awards Employee purchases of unregistered shares of common stock Restricted stock cancelled for employee minimum income taxes
from December 31, 2015 to December 31, 2016 Vesting of restricted stock units/awards Purchase of treasury shares Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP Issuance of stock in bond exchange
From December 31, 2014 to February 5, 2016 Vesting of restricted stock units/awards Purchase of treasury shares Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP On February 4, 2016, we completed a one-for-fifteen reverse stock split, and our stock began trading on a reverse-split adjusted basis on February 5, 2016.
from December 31, 2013 to December 31, 2014 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
from December 31, 2012 to December 31, 2013 Conversion payment of preferred stock Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
from December 31, 2011 to December 31, 2012 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
from December 31, 2010 to December 31, 2011 Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
from December 31, 2009 to December 31, 2010 Issuance of stock to BGP Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Conversion of cumulative convertible preferred stock
from December 31, 2008 to December 31, 2009 Purchase of treasury stock Issuance of stock Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP
from December 31, 2007 to December 31, 2008 Reclassification of preferred stock to equity Purchase of treasury stock Issuance of stock for ARAM acquisition Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP Conversion of 5.5% convertible senior notes Issuance of treasury stock
from December 31, 2006 to December 31, 2007 Purchase treasury stock Exercise of stock options Vesting of restricted stock units/awards Restricted stock cancelled for employee minimum income taxes Issuance of stock for the ESPP Conversion of 5.5% convertible senior notes Issuance of treasury stock
from December 31, 2005 to December 31, 2006 Impact of adoption of SFAS 123R on restricted stock Purchase treasury stock Exercise of stock options Vesting of restricted stock units/awards Issuance of stock for the ESPP Issuance of treasury stock
from December 31, 2004 to December 31, 2005 Issuance of restricted stock awards Cancellation of restricted stock awards Purchase treasury stock Exercise of stock options Vesting of restricted stock units Issuance of stock for the Employee Stock Purchase Plan Issuance of treasury stock
from December 31, 2003 to December 31, 2004 Issuance of restricted stock awards Cancellation of restricted stock awards Purchase treasury stock Exercise of stock options Issuance of common stock Issuance of common stock in business acquisition Issuance of stock for the Employee Stock Purchase Plan Issuance of treasury stock
from December 31, 2002 to December 31, 2003 Issuance of restricted stock award Cancellation of restricted stock award Purchase treasury stock Exchange of warrant obligation Issuance of stock for the Employee Stock Purchase Plan Issuance of treasury stock
from December 31, 2001 to December 31, 2002 Repurchase and exchange of preferred stock Issuance of restricted stock award Cancellation of restricted stock award Purchase treasury stock Exercise of stock options Issuance of stock for the Employee Stock Purchase Plan
from December 31, 2000 to December 31, 2001 Purchase treasury stock Preferred dividend Issuance of stock for the Employee Stock Purchase Plan
from May 31, 2000 to December 31, 2000 Purchase treasury stock Exercise of stock options and related tax benefits Issuance of stock for the Employee Stock Purchase Plan
from May 31, 1999 to May 31, 2000 Issuance of restricted stock award Cancelation of restricted stock awards Purchase treasury stock Reissue treasury stock Exercise of stock options and related tax benefits Issuance of stock for the Employee Stock Purchase Plan
from May 31, 1998 to May 31, 1999 Issuance of restricted stock Issuance of stock in conjunction with Business acquisition Exercise of stock options and related tax benefits Issuance of stock for the Employee Stock Purchase Plan Preferred stock offering
from May 31, 1997 to May 31, 1998 Issuance of restricted stock Issuance of stock in Conjunction with business Acquisition Exercise of stock options and Related tax benefits Issuance of stock for the Employee Stock Purchase Plan
from May 31, 1996 to May 31, 1997 Exercise of stock options and related tax benefits
from May 31, 1995 to May 31, 1996 Exercise of stock options Public offering
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