股本结构

单位:万股
公告日期 2026-02-27 2026-02-27 2025-11-07 2025-11-07 2025-08-08 2025-08-08
证券总股本 4925.43 4962.00 4988.72 4995.00 5050.11 5050.20
普通股本 4925.43 4962.00 4988.72 4995.00 5050.11 5050.20
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 2026-02-20 2026-01-02 2025-10-31 2025-10-03 2025-08-01 2025-07-04
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
2026-02-27 4925.43 未披露 定期报告 2026-02-20
2026-02-27 4962.00 未披露
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From January 3, 2025 to January 2, 2026 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
2026-01-02
2025-11-07 4988.72 未披露 定期报告 2025-10-31
2025-11-07 4995.00 未披露
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From July 4, 2025 to October 3, 2025 Employee stock purchase plan Purchase of treasury shares Exercise of stock options
2025-10-03
2025-08-08 5050.11 未披露 定期报告 2025-08-01
2025-08-08 5050.20 未披露
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From April 4, 2025 to July 4, 2025 Settlement of restricted stock units Employee stock purchase plan Purchase of treasury shares
2025-07-04
2025-05-09 5075.15 未披露 定期报告 2025-05-02
2025-04-21 5075.74 未披露 定期报告 2025-04-09
2025-05-09 5085.40 未披露
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From January 3, 2025 to April 4, 2025 Employee stock purchase plan Purchase of treasury shares Exercise of stock options Settlement of restricted stock units
2025-04-04
2025-02-28 5081.82 未披露 定期报告 2025-02-21
2025-02-28 5081.40 未披露
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From December 29, 2023 to January 3, 2025 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
2025-01-03
2025-02-06 5121.50 未披露 定期报告 2024-12-31
2024-11-01 5076.45 未披露 定期报告 2024-10-25
2024-11-01 5076.50 未披露
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From June 28, 2024 to September 27, 2024 Employee stock purchase plan Settlement of restricted stock units Exercise of stock options
2024-09-27
2024-08-02 5073.07 未披露 定期报告 2024-07-26
2024-08-02 5073.10 未披露
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From March 29, 2024 to June 28, 2024 Settlement of restricted stock units Employee stock purchase plan Purchase of treasury shares Exercise of stock options
2024-06-28
2024-05-03 5067.03 未披露 定期报告 2024-04-26
2024-04-22 5067.34 未披露 定期报告 2024-04-10
2024-05-03 5067.40 未披露
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From December 29, 2023 to March 29, 2024 Employee stock purchase plan Purchase of treasury shares Settlement of restricted stock units Exercise of stock options
2024-03-29
2024-02-23 5056.32 未披露 定期报告 2024-02-16
2024-02-23 5057.30 未披露
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From December 30, 2022 to December 29, 2023 Settlement of restricted stock units Employee stock purchase plan Exercise of stock options Purchase of treasury shares
2023-12-29
2023-11-03 5062.24 未披露 定期报告 2023-10-27
2023-11-03 5066.70 未披露
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From June 30, 2023 to September 29, 2023 Employee stock purchase plan Purchase of treasury stock
2023-09-29
2023-08-07 5084.89 未披露 定期报告 2023-07-28
2023-08-07 5084.90 未披露
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From March 31, 2023 to June 30, 2023 Employee stock purchase plan Settlement of restricted stock units
2023-06-30
2023-04-24 5083.51 未披露 定期报告 2023-04-12
2023-05-05 5083.50 未披露
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From December 30, 2022 to March 31, 2023 Employee stock purchase plan Settlement of restricted stock units Exercise of stock options
2023-03-31
2023-02-24 5064.24 未披露 定期报告 2023-02-17
2023-02-24 5064.30 未披露 定期报告 2022-12-30
2022-11-04 5063.82 未披露 定期报告 2022-10-28
2022-11-04 5078.90 未披露
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From July 1, 2022 to September 30, 2022 Employee stock purchase plan Purchase of treasury stock
2022-09-30
2022-08-05 5111.68 未披露 定期报告 2022-07-29
2022-08-05 5111.70 未披露
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From April 1, 2022 to July 1, 2022 Employee stock purchase plan Purchase of treasury stock Settlement of restricted stock units
2022-07-01
2022-04-20 5182.16 未披露 定期报告 2022-04-06
2022-05-06 5182.20 未披露
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From December 31, 2021 to April 1, 2022 Employee stock purchase plan Purchase of treasury stock Settlement of restricted stock units
2022-04-01
2022-02-25 5211.62 未披露 定期报告 2022-02-18
2022-02-25 5211.60 未披露
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From January 1, 2021 to December 31, 2021 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
2021-12-31
2021-11-05 5211.15 未披露 定期报告 2021-10-29
2021-11-05 5211.20 未披露
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From July 2, 2021 to October 1, 2021 Employee stock purchase plan Exercise of stock options
2021-10-01
2021-08-06 5205.87 未披露 定期报告 2021-07-30
2021-08-06 5205.90 未披露
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From April 2, 2021 to July 2, 2021 Purchase of treasury stock Settlement of restricted stock units
2021-07-02
2021-04-21 5212.29 未披露 定期报告 2021-04-07
2021-05-07 5212.30 未披露
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From January 1, 2021 to April 2, 2021 Employee stock purchase plan Settlement of restricted stock units
2021-04-02
2021-02-26 5180.39 未披露 定期报告 2021-02-19
2021-02-26 5180.40 未披露
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From January 3, 2020 to January 1, 2021 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
2021-01-01
2020-11-06 5162.95 未披露 定期报告 2020-10-30
2020-11-06 5163.00 未披露
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From July 3, 2020 to October 2, 2020 Employee stock purchase plan
2020-10-02
2020-08-10 5162.24 未披露 定期报告 2020-07-31
2020-08-10 5162.30 未披露
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From April 3, 2020 to July 3, 2020 Employee stock purchase plan Exercise of stock options Settlement of restricted stock units
2020-07-03
2020-05-08 5154.59 未披露 定期报告 2020-05-01
2020-05-08 5154.60 未披露
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From January 3, 2020 to April 3, 2020 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
2020-04-03
2020-04-15 5153.89 未披露 定期报告 2020-04-01
2020-02-28 5181.80 未披露 定期报告 2020-02-21
2020-02-28 5175.60 未披露
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From December 28, 2018 To January 3, 2020 Settlement of restricted stock units Purchase of treasury shares Exercise of stock options Employee stock purchase plan
2020-01-03
2019-11-01 5182.89 未披露 定期报告 2019-10-25
2019-11-01 5202.50 未披露
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from June 28, 2019 to September 27, 2019 Employee stock purchase plan Exercise of stock options
2019-09-27
2019-08-02 5191.93 未披露 定期报告 2019-07-26
2019-08-02 5191.90 未披露
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From March 29, 2019 To June 28, 2019 Employee stock purchase plan Settlement of restricted stock units
2019-06-28
2019-05-03 5190.10 未披露 定期报告 2019-04-26
2019-04-16 5190.08 未披露 定期报告 2019-04-02
2019-05-03 5190.10 未披露
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From December 28, 2018 To March 29, 2019 Employee stock purchase plan Settlement of restricted stock units
2019-03-29
2019-02-22 5149.84 未披露 定期报告 2019-02-15
2019-02-22 5149.90 未披露
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From December 29, 2017 To December 28, 2018 Employee stock purchase plan Purchase of treasury shares Settlement of restricted stock units
2018-12-28
2018-11-02 5201.22 未披露 定期报告 2018-10-26
2018-11-02 5205.20 未披露 定期报告 2018-09-28
2018-08-03 5203.75 未披露 定期报告 2018-07-27
2018-08-03 5203.80 未披露 定期报告 2018-06-29
2018-05-31 5200.00 未披露
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Exponent, Inc. (Nasdaq:EXPO) announced that its stockholders have approved a two-for-one stock split of its common stock and a change in the number of authorized shares of common stock to 120 million. On June 7, 2018, each stockholder of record at the close of business on May 31, 2018 will receive one additional share of common stock for every outstanding share of common stock held. Upon completion of the stock split, Exponent will have approximately 52 million shares of common stock outstanding.
2018-06-08
2018-04-17 2600.45 未披露 定期报告 2018-04-03
2018-05-04 2600.40 未披露 定期报告 2018-03-30
2018-02-23 2576.91 未披露 定期报告 2018-02-16
2018-02-23 2576.90 未披露
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From December 30, 2016 To December 29, 2017 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2017-12-29
2017-11-03 2581.07 未披露 定期报告 2017-10-27
2017-11-03 2581.00 未披露 定期报告 2017-09-29
2017-08-04 2579.34 未披露 定期报告 2017-07-28
2017-08-04 2579.30 未披露 定期报告 2017-06-30
2017-04-18 2587.12 未披露 定期报告 2017-04-04
2017-05-05 2587.10 未披露 定期报告 2017-03-31
2017-02-24 2559.70 未披露 定期报告 2017-02-17
2017-02-24 2559.70 未披露
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from January 1, 2016 to December 30, 2016 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2016-12-30
2016-11-04 2559.25 未披露 定期报告 2016-10-28
2016-11-04 2559.20 未披露 定期报告 2016-09-30
2016-08-05 2598.44 未披露 定期报告 2016-07-29
2016-08-05 2598.50 未披露 定期报告 2016-07-01
2016-05-06 2595.48 未披露 定期报告 2016-04-29
2016-05-06 2595.40 未披露 定期报告 2016-04-01
2016-04-13 2594.84 未披露 定期报告 2016-03-30
2016-02-26 2572.06 未披露 定期报告 2016-02-19
2016-02-26 2572.00 未披露
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from January 2, 2015 to January 1, 2016 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units On May 28, 2015, the Company’s stockholders approved an amendment to the Company’s certificate of incorporation to (i) amend the number of authorized shares of common stock to 80,000,000, (ii) amend the number of authorized shares of preferred stock to 2,000,000, and (iii) effect a two-for-one stock split.
2016-01-01
2015-11-06 2574.69 未披露 定期报告 2015-10-30
2015-11-06 2568.10 未披露 定期报告 2015-10-02
2015-08-07 2592.28 未披露 定期报告 2015-07-31
2015-08-07 2592.20 未披露 定期报告 2015-07-03
2015-08-07 2598.15 未披露
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On May 28, 2015, the Company’s stockholders approved an amendment to the Company’s certificate of incorporation to (i) amend the number of authorized shares of common stock to 80,000,000, (ii) amend the number of authorized shares of preferred stock to 2,000,000, and (iii) effect a two-for-one stock split.
2015-06-05
2015-05-08 1299.07 未披露 定期报告 2015-05-01
2015-05-08 1299.10 未披露 定期报告 2015-04-03
2015-04-16 1298.73 未披露 定期报告 2015-04-01
2015-03-02 1287.10 未披露 定期报告 2015-02-20
2015-03-02 1287.10 未披露
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from January 3, 2014 to January 2, 2015 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2015-01-02
2014-11-07 1286.66 未披露 定期报告 2014-10-31
2014-11-07 1290.80 未披露 定期报告 2014-10-03
2014-08-08 1308.79 未披露 定期报告 2014-08-01
2014-08-08 1308.80 未披露 定期报告 2014-07-04
2014-05-09 1310.28 未披露 定期报告 2014-05-02
2014-05-09 1313.40 未披露 定期报告 2014-04-04
2014-04-16 1314.14 未披露 定期报告 2014-04-02
2014-03-03 1306.32 未披露 定期报告 2014-02-21
2014-03-03 1306.40 未披露
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from December 28, 2012 to December 31,2013 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2013-12-31
2013-11-01 1310.32 未披露 定期报告 2013-10-25
2013-11-01 1310.00 未披露 定期报告 2013-09-27
2013-08-02 1313.31 未披露 定期报告 2013-07-26
2013-08-02 1313.30 未披露 定期报告 2013-06-28
2013-05-03 1318.52 未披露 定期报告 2013-04-26
2013-04-17 1320.28 未披露 定期报告 2013-04-03
2013-05-03 1321.80 未披露 定期报告 2013-03-29
2013-02-28 1313.07 未披露 定期报告 2013-02-15
2013-02-28 1320.60 未披露
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from December 30, 2011 to December 28, 2012 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2012-12-28
2012-11-05 1322.38 未披露 定期报告 2012-10-26
2012-11-05 1318.70 未披露 定期报告 2012-09-28
2012-08-03 1318.05 未披露 定期报告 2012-07-27
2012-08-03 1318.00 未披露 定期报告 2012-06-29
2012-05-04 1341.08 未披露 定期报告 2012-04-27
2012-05-04 1345.80 未披露 定期报告 2012-03-30
2012-02-27 1332.30 未披露 定期报告 2012-02-17
2012-02-27 1330.00 未披露
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from December 31, 2010 to December 30, 2011 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2011-12-30
2011-11-04 1324.31 未披露 定期报告 2011-10-28
2011-11-04 1326.70 未披露 定期报告 2011-09-30
2011-08-05 1365.03 未披露 定期报告 2011-07-29
2011-08-05 1366.50 未披露 定期报告 2011-07-01
2011-05-09 1401.30 未披露 定期报告 2011-04-29
2011-05-09 1402.90 未披露 定期报告 2011-04-01
2011-02-28 1403.84 未披露 定期报告 2011-02-18
2011-02-28 1399.60 未披露
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from January 1, 2010 to December 31, 2010 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2010-12-31
2010-11-05 1387.26 未披露 定期报告 2010-10-29
2010-11-05 1385.77 未披露 定期报告 2010-10-01
2010-08-06 1387.38 未披露 定期报告 2010-07-30
2010-08-06 1386.58 未披露 定期报告 2010-07-02
2010-05-05 1385.94 未披露 定期报告 2010-04-30
2010-05-05 1381.79 未披露 定期报告 2010-04-02
2010-02-24 1366.88 未披露 定期报告 2010-02-19
2010-02-24 1373.70 未披露
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from January 2, 2009 to January 1, 2010 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2010-01-01
2009-02-25 1370.01 未披露 定期报告 2009-02-20
2009-02-25 1369.00 未披露
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from December 28, 2007 to January 2, 2009 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2009-01-02
2008-03-05 1458.22 未披露 定期报告 2008-02-22
2008-03-05 1435.90 未披露
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from December 29, 2006 to December 28, 2007 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
2007-12-28
2007-03-08 1478.64 未披露 定期报告 2007-02-23
2007-03-08 1471.30 未披露
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from December 30, 2005 to December 29, 2006 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares On May 24, 2006, the Company effects a two-for-one stock split.
2006-12-29
2006-03-06 817.88 未披露 定期报告 2006-02-24
2006-03-06 809.60 未披露
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from December 31, 2004 to December 30, 2005 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares
2005-12-30
2005-03-15 792.25 未披露 定期报告 2005-03-04
2005-03-15 800.60 未披露
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from January 2, 2004 to December 31, 2004 Employee stock purchase plan Exercise of stock options, net of swaps
2004-12-31
2004-03-17 735.53 未披露 定期报告 2004-03-05
2004-03-17 729.80 未披露
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from January 3, 2003 to January 2, 2004 Stock based compensation Employee stock purchase plan Sale of stock pursuant to other stock plans Purchase of treasury shares
2004-01-02
2003-04-03 714.92 未披露 定期报告 2003-03-21
2003-04-03 710.40 未披露
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from December 28, 2001 to January 3, 2003 Stock based compensation Acquisition of Novigen Employee stock purchase plan Sale of stock pursuant to other stock plans Purchase of treasury shares
2003-01-03
2002-03-28 656.77 未披露 定期报告 2002-03-15
2002-03-28 648.80 未披露
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from December 29, 2000 to December 28, 2001 Net issuance of common stock Sale of stock pursuant to employee stock plans Purchase of treasury shares
2001-12-28
2001-03-29 646.30 未披露 定期报告 2001-03-16
2001-03-29 645.60 未披露
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from December 31, 1999 to December 29, 2000 Net issuance of common stock Sale of stock pursuant to employee stock plans Purchase of treasury shares
2000-12-29
2000-03-30 669.88 未披露 定期报告 2000-03-17
2000-03-30 667.90 未披露
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from January 1, 1999 to December 31, 1999 Sale of stock pursuant to employee stock plans Purchase of treasury shares
1999-12-31
1999-04-01 696.91 未披露 定期报告 1999-03-19
1999-04-01 720.00 未披露
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from January 2, 1998 to January 1, 1999 Sale of stock pursuant to employee stock plans Purchase of treasury shares
1999-01-01
1998-04-02 746.94 未披露 定期报告 1998-03-27
1998-04-02 744.20 未披露
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from January 3, 1997 to January 2, 1998 Sale of stock pursuant to employee stock plans Acquisition of EEG
1998-01-02
1997-04-03 680.58 未披露
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from December 29, 1995 to January 3,1997 Sale of stock pursuant to employee benefit plans Acquisition of EHS Purchase of treasury shares Stock options exercised
1997-01-03
1997-04-03 663.74 未披露
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from December 30, 1994 to December 29, 1995 Sale of stock pursuant to employee benefit plans Issuance of stock to directors Purchase of treasury shares Stock options exercised
1995-12-29
From January 3, 2025 to January 2, 2026 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
From July 4, 2025 to October 3, 2025 Employee stock purchase plan Purchase of treasury shares Exercise of stock options
From April 4, 2025 to July 4, 2025 Settlement of restricted stock units Employee stock purchase plan Purchase of treasury shares
From January 3, 2025 to April 4, 2025 Employee stock purchase plan Purchase of treasury shares Exercise of stock options Settlement of restricted stock units
From December 29, 2023 to January 3, 2025 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
From June 28, 2024 to September 27, 2024 Employee stock purchase plan Settlement of restricted stock units Exercise of stock options
From March 29, 2024 to June 28, 2024 Settlement of restricted stock units Employee stock purchase plan Purchase of treasury shares Exercise of stock options
From December 29, 2023 to March 29, 2024 Employee stock purchase plan Purchase of treasury shares Settlement of restricted stock units Exercise of stock options
From December 30, 2022 to December 29, 2023 Settlement of restricted stock units Employee stock purchase plan Exercise of stock options Purchase of treasury shares
From June 30, 2023 to September 29, 2023 Employee stock purchase plan Purchase of treasury stock
From March 31, 2023 to June 30, 2023 Employee stock purchase plan Settlement of restricted stock units
From December 30, 2022 to March 31, 2023 Employee stock purchase plan Settlement of restricted stock units Exercise of stock options
From July 1, 2022 to September 30, 2022 Employee stock purchase plan Purchase of treasury stock
From April 1, 2022 to July 1, 2022 Employee stock purchase plan Purchase of treasury stock Settlement of restricted stock units
From December 31, 2021 to April 1, 2022 Employee stock purchase plan Purchase of treasury stock Settlement of restricted stock units
From January 1, 2021 to December 31, 2021 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
From July 2, 2021 to October 1, 2021 Employee stock purchase plan Exercise of stock options
From April 2, 2021 to July 2, 2021 Purchase of treasury stock Settlement of restricted stock units
From January 1, 2021 to April 2, 2021 Employee stock purchase plan Settlement of restricted stock units
From January 3, 2020 to January 1, 2021 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
From July 3, 2020 to October 2, 2020 Employee stock purchase plan
From April 3, 2020 to July 3, 2020 Employee stock purchase plan Exercise of stock options Settlement of restricted stock units
From January 3, 2020 to April 3, 2020 Employee stock purchase plan Exercise of stock options Purchase of treasury shares Settlement of restricted stock units
From December 28, 2018 To January 3, 2020 Settlement of restricted stock units Purchase of treasury shares Exercise of stock options Employee stock purchase plan
from June 28, 2019 to September 27, 2019 Employee stock purchase plan Exercise of stock options
From March 29, 2019 To June 28, 2019 Employee stock purchase plan Settlement of restricted stock units
From December 28, 2018 To March 29, 2019 Employee stock purchase plan Settlement of restricted stock units
From December 29, 2017 To December 28, 2018 Employee stock purchase plan Purchase of treasury shares Settlement of restricted stock units
Exponent, Inc. (Nasdaq:EXPO) announced that its stockholders have approved a two-for-one stock split of its common stock and a change in the number of authorized shares of common stock to 120 million. On June 7, 2018, each stockholder of record at the close of business on May 31, 2018 will receive one additional share of common stock for every outstanding share of common stock held. Upon completion of the stock split, Exponent will have approximately 52 million shares of common stock outstanding.
From December 30, 2016 To December 29, 2017 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from January 1, 2016 to December 30, 2016 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from January 2, 2015 to January 1, 2016 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units On May 28, 2015, the Company’s stockholders approved an amendment to the Company’s certificate of incorporation to (i) amend the number of authorized shares of common stock to 80,000,000, (ii) amend the number of authorized shares of preferred stock to 2,000,000, and (iii) effect a two-for-one stock split.
On May 28, 2015, the Company’s stockholders approved an amendment to the Company’s certificate of incorporation to (i) amend the number of authorized shares of common stock to 80,000,000, (ii) amend the number of authorized shares of preferred stock to 2,000,000, and (iii) effect a two-for-one stock split.
from January 3, 2014 to January 2, 2015 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from December 28, 2012 to December 31,2013 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from December 30, 2011 to December 28, 2012 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from December 31, 2010 to December 30, 2011 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from January 1, 2010 to December 31, 2010 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from January 2, 2009 to January 1, 2010 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from December 28, 2007 to January 2, 2009 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from December 29, 2006 to December 28, 2007 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares Settlement of restricted stock units
from December 30, 2005 to December 29, 2006 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares On May 24, 2006, the Company effects a two-for-one stock split.
from December 31, 2004 to December 30, 2005 Employee stock purchase plan Exercise of stock options, net of swaps Purchase of treasury shares
from January 2, 2004 to December 31, 2004 Employee stock purchase plan Exercise of stock options, net of swaps
from January 3, 2003 to January 2, 2004 Stock based compensation Employee stock purchase plan Sale of stock pursuant to other stock plans Purchase of treasury shares
from December 28, 2001 to January 3, 2003 Stock based compensation Acquisition of Novigen Employee stock purchase plan Sale of stock pursuant to other stock plans Purchase of treasury shares
from December 29, 2000 to December 28, 2001 Net issuance of common stock Sale of stock pursuant to employee stock plans Purchase of treasury shares
from December 31, 1999 to December 29, 2000 Net issuance of common stock Sale of stock pursuant to employee stock plans Purchase of treasury shares
from January 1, 1999 to December 31, 1999 Sale of stock pursuant to employee stock plans Purchase of treasury shares
from January 2, 1998 to January 1, 1999 Sale of stock pursuant to employee stock plans Purchase of treasury shares
from January 3, 1997 to January 2, 1998 Sale of stock pursuant to employee stock plans Acquisition of EEG
from December 29, 1995 to January 3,1997 Sale of stock pursuant to employee benefit plans Acquisition of EHS Purchase of treasury shares Stock options exercised
from December 30, 1994 to December 29, 1995 Sale of stock pursuant to employee benefit plans Issuance of stock to directors Purchase of treasury shares Stock options exercised