股本结构

单位:万股
公告日期 2025-07-30 2025-07-29 2025-04-24 2025-04-23 2025-02-28 2025-02-27
证券总股本 3288.67 3288.13 3281.96 3281.89 3281.03 3277.61
普通股本 3288.67 3288.13 3281.96 3281.89 3281.03 3277.61
优先股 未披露 未披露 未披露 未披露 未披露 未披露
其他 未披露 未披露 未披露 未披露 未披露 未披露
变动日期 2025-07-25 2025-06-30 2025-04-18 2025-03-31 2025-02-21 2024-12-31
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
2025-07-30 3288.67 未披露 定期报告 2025-07-25
2025-07-29 3288.13 未披露 定期报告 2025-06-30
2025-04-24 3281.96 未披露 定期报告 2025-04-18
2025-04-23 3281.89 未披露 定期报告 2025-03-31
2025-02-28 3281.03 未披露 定期报告 2025-02-21
2025-02-27 3277.61 未披露
更多>>
From December 31, 2023 to December 31, 2024 Issuance/(cancellation) of non-vested stock Exercise of stock options Non-cash compensation Surrendered shares
2024-12-31
2024-12-10 3275.45 未披露 定期报告 2024-11-15
2024-11-07 3275.11 未披露
更多>>
From June 30, 2024 to September 30, 2024 Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2024-09-30
2024-07-25 3274.06 未披露 定期报告 2024-07-19
2024-07-25 3273.95 未披露
更多>>
From March 31, 2024 to June 30, 2024 Issuance/(cancellation) of non-vested stock Surrendered shares
2024-06-30
2024-04-25 3267.69 未披露 定期报告 2024-04-19
2024-04-25 3267.61 未披露
更多>>
From December 31, 2023 to March 31, 2024 Issuance/(cancellation) of non-vested stock Surrendered shares
2024-03-31
2024-02-22 3266.76 未披露
更多>>
From December 31, 2022 to December 31, 2023 Exercise of stock options Issuance/(cancellation) of non-vested stock Issuance of stock – employee stock purchase plan
2023-12-31
2023-10-25 3263.33 未披露 定期报告 2023-10-20
2023-10-25 3263.36 未披露
更多>>
From June 30, 2023 to September 30, 2023 Issuance/(cancellation) of non-vested stock Issuance of stock – employee stock purchase plan Exercise of stock options
2023-09-30
2023-08-10 3263.30 未披露 定期报告 2023-08-04
2023-07-27 3260.79 未披露 定期报告 2023-07-21
2023-07-27 3260.83 未披露
更多>>
From March 31, 2023 to June 30, 2023 Issuance of stock – employee stock purchase plan Exercise of stock options Non-cash compensation Surrendered shares Noncontrolling interest contributions Noncontrolling interest distributions Net loss
2023-06-30
2023-08-10 3260.78 未披露 定期报告 2023-06-23
2023-05-04 3255.94 未披露 定期报告 2023-04-28
2023-04-27 3255.10 未披露 定期报告 2023-04-11
2023-05-04 3254.41 未披露
更多>>
From December 31, 2022 to March 31, 2023 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Surrendered shares
2023-03-31
2023-02-16 3255.06 未披露 定期报告 2023-02-10
2023-02-16 3251.83 未披露
更多>>
From December 31, 2021 to December 31, 2022 Issuance/(cancellation) of non-vested stock Surrendered shares Issuance of stock – employee stock purchase plan Shares repurchased Exercise of stock options
2022-12-31
2022-10-27 3249.20 未披露 定期报告 2022-10-21
2022-10-27 3247.95 未披露
更多>>
From June 30, 2022 to September 30, 2022 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2022-09-30
2022-07-28 3244.33 未披露 定期报告 2022-07-22
2022-07-28 3243.25 未披露
更多>>
From March 31, 2022 to June 30, 2022 Issuance/(cancellation) of non-vested stock Issuance of stock – employee stock purchase plan Exercise of stock options Surrendered shares Shares repurchased
2022-06-30
2022-04-27 3257.28 未披露 定期报告 2022-04-14
2022-04-28 3256.66 未披露
更多>>
From December 31, 2021 to March 31, 2022 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options
2022-03-31
2022-02-24 3252.57 未披露 定期报告 2022-02-18
2022-02-24 3251.00 未披露
更多>>
From December 31, 2020 to December 31, 2021 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
2021-12-31
2021-11-03 3260.24 未披露 定期报告 2021-10-29
2021-11-03 3259.08 未披露
更多>>
From June 30, 2021 to September 30, 2021 Issuance of stock – employee stock purchase plan Exercise of stock options Non-cash compensation Surrendered shares Shares repurchased Noncontrolling interest distribution Acquired noncontrolling interest Net income
2021-09-30
2021-08-05 3263.20 未披露 定期报告 2021-07-30
2021-08-05 3257.68 未披露
更多>>
From March 31, 2021 to June 30, 2021 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
2021-06-30
2021-04-29 3257.18 未披露 定期报告 2021-04-23
2021-04-28 3256.78 未披露 定期报告 2021-04-13
2021-04-29 3256.77 未披露
更多>>
from December 31, 2020 to March 31, 2021 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
2021-03-31
2021-02-25 3284.85 未披露 定期报告 2021-02-19
2021-02-25 3281.43 未披露
更多>>
From December 31,2019 to December 31,2020 Issuance of stock – employee stock purchase plan Issuance of stock –plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2020-12-31
2020-10-29 3281.05 未披露 定期报告 2020-10-23
2020-10-29 3280.28 未披露
更多>>
From June 30, 2020 to September 30, 2020 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2020-09-30
2020-07-29 3246.67 未披露 定期报告 2020-07-24
2020-07-29 3244.27 未披露
更多>>
from March 31, 2020 to June 30, 2020 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2020-06-30
2020-05-07 3237.92 未披露 定期报告 2020-05-01
2020-05-07 3237.03 未披露
更多>>
from December 31, 2019 to March 31, 2020 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2020-03-31
2020-02-19 3231.40 未披露 定期报告 2020-02-14
2020-02-19 3228.41 未披露
更多>>
from December 31, 2018 to December 31, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2019-12-31
2019-10-30 3225.53 未披露 定期报告 2019-10-25
2019-10-30 3224.66 未披露
更多>>
from June 30, 2019 to September 30, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options
2019-09-30
2019-08-01 3217.49 未披露 定期报告 2019-07-26
2019-08-01 3213.02 未披露
更多>>
from March 31, 2019 to June 30, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
2019-06-30
2019-04-26 3204.48 未披露 定期报告 2019-04-11
2019-05-01 3203.77 未披露
更多>>
from December 31, 2018 to March 31, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Exercise of stock options Non-cash compensation Surrendered shares Noncontrolling interest distribution Net income
2019-03-31
2019-02-28 3201.03 未披露 定期报告 2019-02-22
2019-02-28 3197.35 未披露
更多>>
from December 31, 2017 to December 31, 2018 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
2018-12-31
2018-10-30 3188.86 未披露 定期报告 2018-10-26
2018-10-29 3187.73 未披露 定期报告 2018-09-30
2018-08-01 3183.60 未披露 定期报告 2018-07-27
2018-08-01 3180.14 未披露 定期报告 2018-06-30
2018-05-08 3406.37 未披露 定期报告 2018-05-04
2018-04-25 3405.79 未披露 定期报告 2018-04-12
2018-05-08 3405.66 未披露 定期报告 2018-03-31
2018-02-28 3398.48 未披露 定期报告 2018-02-23
2018-02-28 3396.48 未披露
更多>>
from December 31, 2016 to December 31, 2017 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options
2017-12-31
2017-11-08 3393.67 未披露 定期报告 2017-11-03
2017-11-08 3391.36 未披露 定期报告 2017-09-30
2017-07-27 3386.21 未披露 定期报告 2017-07-21
2017-07-26 3385.06 未披露 定期报告 2017-06-30
2017-05-03 3372.83 未披露 定期报告 2017-04-28
2017-04-25 3367.35 未披露 定期报告 2017-04-13
2017-05-03 3369.30 未披露 定期报告 2017-03-31
2017-03-01 3360.74 未披露 定期报告 2017-02-24
2017-03-01 3359.72 未披露
更多>>
from December 31, 2015 to December 31, 2016 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Surrendered shares Shares repurchased
2016-12-31
2016-11-04 3356.96 未披露 定期报告 2016-11-01
2016-11-03 3355.14 未披露 定期报告 2016-09-30
2016-08-03 3354.75 未披露 定期报告 2016-07-29
2016-08-02 3349.99 未披露 定期报告 2016-06-30
2016-05-04 3341.86 未披露 定期报告 2016-04-29
2016-04-22 3343.00 未披露 定期报告 2016-04-15
2016-05-04 3334.05 未披露 定期报告 2016-03-31
2016-03-10 3332.91 未披露 定期报告 2016-03-04
2016-03-10 3360.73 未披露
更多>>
from December 31, 2014 to December 31, 2015 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Exercise of stock options Issuance/(cancellation) of non-vested stock Surrendered shares Shares repurchased
2015-12-31
2015-11-05 3369.12 未披露 定期报告 2015-11-02
2015-11-04 3367.22 未披露 定期报告 2015-09-30
2015-07-29 3366.59 未披露 定期报告 2015-06-30
2015-04-29 3366.82 未披露 定期报告 2015-04-24
2015-04-29 3364.39 未披露 定期报告 2015-03-31
2015-03-04 3367.30 未披露 定期报告 2015-02-27
2015-03-04 3359.46 未披露
更多>>
from December 31, 2013 to December 31, 2014 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
2014-12-31
2014-10-29 3338.04 未披露 定期报告 2014-10-24
2014-10-29 3334.79 未披露 定期报告 2014-09-30
2014-07-30 3323.46 未披露 定期报告 2014-07-25
2014-07-30 3319.59 未披露 定期报告 2014-06-30
2014-05-08 3281.26 未披露 定期报告 2014-05-02
2014-04-30 3252.70 未披露 定期报告 2014-04-11
2014-05-08 3260.84 未披露 定期报告 2014-03-31
2014-03-12 3271.71 未披露 定期报告 2014-03-10
2014-03-12 3253.90 未披露
更多>>
from December 31, 2012 to December 31, 2013 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
2013-12-31
2013-11-12 3246.05 未披露 定期报告 2013-11-07
2013-11-12 3240.95 未披露 定期报告 2013-09-30
2013-07-31 3218.13 未披露 定期报告 2013-07-26
2013-07-31 3210.62 未披露 定期报告 2013-06-30
2013-04-30 3146.49 未披露 定期报告 2013-04-25
2013-04-26 3137.41 未披露 定期报告 2013-04-11
2013-04-30 3138.29 未披露 定期报告 2013-03-31
2013-03-12 3138.16 未披露 定期报告 2013-03-07
2013-03-12 3108.66 未披露
更多>>
from December 31, 2011 to December 31, 2012 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
2012-12-31
2012-11-06 3094.13 未披露 定期报告 2012-11-01
2012-11-06 3164.08 未披露 定期报告 2012-09-30
2012-08-07 3063.78 未披露 定期报告 2012-08-02
2012-08-07 3132.88 未披露 定期报告 2012-06-30
2012-05-09 3012.70 未披露 定期报告 2012-05-03
2012-05-08 3073.05 未披露 定期报告 2012-03-31
2012-02-28 3000.33 未披露 定期报告 2012-02-23
2012-02-28 3032.85 未披露
更多>>
from December 31, 2010 to December 31, 2011 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
2011-12-31
2011-11-01 2943.60 未披露 定期报告 2011-10-27
2011-11-01 3002.97 未披露 定期报告 2011-09-30
2011-08-02 2925.91 未披露 定期报告 2011-07-29
2011-08-02 2989.03 未披露 定期报告 2011-06-30
2011-04-26 2947.36 未披露 定期报告 2011-04-20
2011-04-26 2944.51 未披露 定期报告 2011-03-31
2011-02-22 2948.93 未披露 定期报告 2011-02-18
2011-02-22 2923.28 未披露
更多>>
Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock
2010-12-31
2010-10-26 2902.81 未披露 定期报告 2010-10-21
2010-10-26 2831.89 未披露 定期报告 2010-09-30
2010-08-09 2882.06 未披露 定期报告 2010-08-04
2010-08-09 2875.74 未披露 定期报告 2010-06-30
2010-04-27 2855.96 未披露 定期报告 2010-04-22
2010-04-27 2843.60 未披露 定期报告 2010-03-31
2010-02-23 2828.05 未披露 定期报告 2010-02-19
2010-02-23 2819.12 未披露
更多>>
from December 31, 2008 to December 31, 2009 Issuance of stock — employee stock purchase plan Issuance of stock — 401(k) plan Exercise of stock options Issuance of non-vested stock
2009-12-31
2009-02-17 2724.77 未披露 定期报告 2009-02-13
2009-02-17 2708.32 未披露
更多>>
from December 31, 2007 to December 31, 2008 Issuance of stock for employee stock purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options and warrants Issuance of non-vested stock
2008-12-31
2008-02-27 2647.06 未披露 定期报告 2008-02-20
2008-02-27 2636.86 未披露
更多>>
from December 31, 2006 to December 31, 2007 Issuance of stock for employee stock purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Issuance of non-vested stock
2007-12-31
2007-02-20 2582.68 未披露 定期报告 2007-02-07
2007-02-20 2579.87 未披露
更多>>
from December 31, 2005 to December 31, 2006 Issuance of stock for employee stock purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Issuance of non-vested stock Issuance of stock in connection with public offering, net Four-for-three stock split
2006-12-31
2006-03-16 1590.08 未披露 定期报告 2006-02-15
2006-03-16 1587.75 未披露
更多>>
from December 31, 2004 to December 31, 2005 Issuance of stock for Employee Stock Purchase Plan Issuance of stock in connection with 401(k) plan Exercise of stock options Issuance of stock options as compensation Issuance of options in conjunction with acquisitions Issuance of restricted stock
2005-12-31
2005-03-17 1535.99 未披露 定期报告 2005-03-10
2005-03-17 1530.64 未披露
更多>>
from December 31, 2003 to December 31, 2004 Issuance of stock for Employee Stock Purchase Plan Issuance of stock in connection with 401(k) Plan Exercise of stock options Issuance of stock as compensation Issuance of stock in connection with public offering, net of offering costs of $4,473 Exercise of warrants Issuance of stock in conjunction with acquisition
2004-12-31
2004-03-29 1214.49 未披露 定期报告 2004-03-22
2004-03-29 1190.40 未披露
更多>>
from December 31, 2002 to December 31, 2003 Issuance of stock for Employee Stock Purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Exercise of warrants Issuance of stock in conjunction with acquisitions Issuance of stock as compensation Issuance of stock in connection with Private Placement, net of offering costs of $171,000
2003-12-31
2003-03-28 940.41 未披露 定期报告 2003-03-21
2003-03-28 916.38 未披露
更多>>
from December 31, 2001 to December 31, 2002 Issuance of stock for Employee Stock Purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Exercise of warrants Issuance of stock in connection with Private Placement
2002-12-31
2002-03-21 736.47 未披露 定期报告 2002-03-18
2002-03-21 717.82 未披露
更多>>
from December 31, 2000 to December 31, 2001 Issuance of stock for Employee Stock Purchase plan Issuance of stock in connection with 401(k) plan Issuance of stock and stock options Exercise of stock options Preferred stock conversion Exercise of warrants
2001-12-31
2001-03-19 564.42 未披露 定期报告 2001-03-12
2001-03-19 532.61 39.00
更多>>
from December 31, 1999 to December 31, 2000 Issuance of stock for Employee Stock Purchase Plan Issuance of stock in connection with 401(k) Plan Issuance of stock for bonuses Preferred stock conversion
2000-12-31
1998-04-16 306.00 未披露 定期报告 1998-03-31
1998-04-16 285.01 40.00
更多>>
from December 31,1996 to December 31,1997 Issuance of stock in connection with private placement stock, offering acquisition, and 401K plan Issuance of preferred stock
1997-12-31
1998-04-16 257.62 未披露
更多>>
from December 31,1995 to December 31,1996 Issuance of stock in connection with warrants Payments received on and write-off of stock subscriptions
1996-12-31
From December 31, 2023 to December 31, 2024 Issuance/(cancellation) of non-vested stock Exercise of stock options Non-cash compensation Surrendered shares
From June 30, 2024 to September 30, 2024 Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
From March 31, 2024 to June 30, 2024 Issuance/(cancellation) of non-vested stock Surrendered shares
From December 31, 2023 to March 31, 2024 Issuance/(cancellation) of non-vested stock Surrendered shares
From December 31, 2022 to December 31, 2023 Exercise of stock options Issuance/(cancellation) of non-vested stock Issuance of stock – employee stock purchase plan
From June 30, 2023 to September 30, 2023 Issuance/(cancellation) of non-vested stock Issuance of stock – employee stock purchase plan Exercise of stock options
From March 31, 2023 to June 30, 2023 Issuance of stock – employee stock purchase plan Exercise of stock options Non-cash compensation Surrendered shares Noncontrolling interest contributions Noncontrolling interest distributions Net loss
From December 31, 2022 to March 31, 2023 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Surrendered shares
From December 31, 2021 to December 31, 2022 Issuance/(cancellation) of non-vested stock Surrendered shares Issuance of stock – employee stock purchase plan Shares repurchased Exercise of stock options
From June 30, 2022 to September 30, 2022 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
From March 31, 2022 to June 30, 2022 Issuance/(cancellation) of non-vested stock Issuance of stock – employee stock purchase plan Exercise of stock options Surrendered shares Shares repurchased
From December 31, 2021 to March 31, 2022 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options
From December 31, 2020 to December 31, 2021 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
From June 30, 2021 to September 30, 2021 Issuance of stock – employee stock purchase plan Exercise of stock options Non-cash compensation Surrendered shares Shares repurchased Noncontrolling interest distribution Acquired noncontrolling interest Net income
From March 31, 2021 to June 30, 2021 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
from December 31, 2020 to March 31, 2021 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
From December 31,2019 to December 31,2020 Issuance of stock – employee stock purchase plan Issuance of stock –plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
From June 30, 2020 to September 30, 2020 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
from March 31, 2020 to June 30, 2020 Issuance of stock – employee stock purchase plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
from December 31, 2019 to March 31, 2020 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
from December 31, 2018 to December 31, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
from June 30, 2019 to September 30, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options
from March 31, 2019 to June 30, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares
from December 31, 2018 to March 31, 2019 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Exercise of stock options Non-cash compensation Surrendered shares Noncontrolling interest distribution Net income
from December 31, 2017 to December 31, 2018 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options Surrendered shares Shares repurchased
from December 31, 2016 to December 31, 2017 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Exercise of stock options
from December 31, 2015 to December 31, 2016 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Issuance/(cancellation) of non-vested stock Surrendered shares Shares repurchased
from December 31, 2014 to December 31, 2015 Issuance of stock – employee stock purchase plan Issuance of stock – 401(k) plan Exercise of stock options Issuance/(cancellation) of non-vested stock Surrendered shares Shares repurchased
from December 31, 2013 to December 31, 2014 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
from December 31, 2012 to December 31, 2013 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
from December 31, 2011 to December 31, 2012 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
from December 31, 2010 to December 31, 2011 Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock Surrendered shares
Issuance of stock—employee stock purchase plan Issuance of stock—401(k) plan Exercise of stock options Issuance of non-vested stock
from December 31, 2008 to December 31, 2009 Issuance of stock — employee stock purchase plan Issuance of stock — 401(k) plan Exercise of stock options Issuance of non-vested stock
from December 31, 2007 to December 31, 2008 Issuance of stock for employee stock purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options and warrants Issuance of non-vested stock
from December 31, 2006 to December 31, 2007 Issuance of stock for employee stock purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Issuance of non-vested stock
from December 31, 2005 to December 31, 2006 Issuance of stock for employee stock purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Issuance of non-vested stock Issuance of stock in connection with public offering, net Four-for-three stock split
from December 31, 2004 to December 31, 2005 Issuance of stock for Employee Stock Purchase Plan Issuance of stock in connection with 401(k) plan Exercise of stock options Issuance of stock options as compensation Issuance of options in conjunction with acquisitions Issuance of restricted stock
from December 31, 2003 to December 31, 2004 Issuance of stock for Employee Stock Purchase Plan Issuance of stock in connection with 401(k) Plan Exercise of stock options Issuance of stock as compensation Issuance of stock in connection with public offering, net of offering costs of $4,473 Exercise of warrants Issuance of stock in conjunction with acquisition
from December 31, 2002 to December 31, 2003 Issuance of stock for Employee Stock Purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Exercise of warrants Issuance of stock in conjunction with acquisitions Issuance of stock as compensation Issuance of stock in connection with Private Placement, net of offering costs of $171,000
from December 31, 2001 to December 31, 2002 Issuance of stock for Employee Stock Purchase plan Issuance of stock in connection with 401(k) plan Exercise of stock options Exercise of warrants Issuance of stock in connection with Private Placement
from December 31, 2000 to December 31, 2001 Issuance of stock for Employee Stock Purchase plan Issuance of stock in connection with 401(k) plan Issuance of stock and stock options Exercise of stock options Preferred stock conversion Exercise of warrants
from December 31, 1999 to December 31, 2000 Issuance of stock for Employee Stock Purchase Plan Issuance of stock in connection with 401(k) Plan Issuance of stock for bonuses Preferred stock conversion
from December 31,1996 to December 31,1997 Issuance of stock in connection with private placement stock, offering acquisition, and 401K plan Issuance of preferred stock
from December 31,1995 to December 31,1996 Issuance of stock in connection with warrants Payments received on and write-off of stock subscriptions