股本结构
单位：万股
| 公告日期 | 2025-11-07 | 2025-11-07 | 2025-09-17 | 2025-08-08 | 2025-08-08 | 2025-05-12 |
|---|---|---|---|---|---|---|
| 证券总股本 | 2888.73 | 2887.60 | 2862.95 | 2632.19 | 2631.70 | 2634.20 |
| 普通股本 | 2888.73 | 2887.60 | 2862.95 | 2632.19 | 2631.70 | 2634.20 |
| 优先股 | 未披露 | 5.00 | 未披露 | 未披露 | 2.00 | 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 | 2025-11-06 | 2025-09-30 | 2025-09-17 | 2025-08-07 | 2025-06-30 | 2025-05-09 |
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 |
|---|---|---|---|---|
| 2025-11-07 | 2888.73 | 未披露 | 定期报告 | 2025-11-06 |
| 2025-11-07 | 2887.60 | 5.00 |
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From June 30, 2025 to September 30, 2025
Securities purchase and exchange agreement
Issuance of preferred stock, net of issuance costs
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
Issuance of common stock, net of offering costs
|
2025-09-30 |
| 2025-09-17 | 2862.95 | 未披露 |
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Common stock offered 2,307,692 shares by the Company
|
2025-09-17 |
| 2025-08-08 | 2632.19 | 未披露 | 定期报告 | 2025-08-07 |
| 2025-08-08 | 2631.70 | 2.00 |
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From March 31, 2025 to June 30, 2025
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
Retirement of common shares
|
2025-06-30 |
| 2025-05-12 | 2634.20 | 未披露 | 定期报告 | 2025-05-09 |
| 2025-04-24 | 2728.99 | 未披露 | 定期报告 | 2025-04-24 |
| 2025-05-12 | 2634.20 | 2.00 |
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From December 31,2024 to March 31,2025
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
|
2025-03-31 |
| 2025-03-17 | 2629.07 | 未披露 | 定期报告 | 2025-03-14 |
| 2025-03-17 | 2629.10 | 2.00 |
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From December 31, 2023 to December 31, 2024
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
Retirement of common shares
ESPP issuances
Issuance of common stock, net of offering costs
|
2024-12-31 |
| 2024-11-12 | 2630.51 | 未披露 | 定期报告 | 2024-11-08 |
| 2024-11-12 | 2601.80 | 2.00 |
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From June 30, 2024 to September 30, 2024
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
|
2024-09-30 |
| 2024-08-09 | 2596.40 | 未披露 | 定期报告 | 2024-08-07 |
| 2024-08-09 | 2585.20 | 2.00 |
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From March 31, 2024 to June 30, 2024
Restricted stock awards, net of forfeitures
ESPP issuances
Dividends declared related to RSA, net of accrued dividends forfeited
Issuance of common stock, net of offering costs
|
2024-06-30 |
| 2024-05-10 | 2473.38 | 未披露 | 定期报告 | 2024-05-08 |
| 2024-04-29 | 2563.78 | 未披露 | 定期报告 | 2024-04-26 |
| 2024-05-10 | 2471.50 | 2.00 |
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From December 31, 2023 to March 31, 2024
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
ESPP issuances
Restricted stock awards, net of forfeitures
|
2024-03-31 |
| 2024-04-01 | 2470.88 | 未披露 | 定期报告 | 2024-03-28 |
| 2024-04-01 | 2468.00 | 2.00 |
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From December 31, 2022 to December 31, 2023
Dividends declared related to RSA, net of accrued dividends forfeited
DRIP shares issued
Purchase of vested stock for employee payroll tax withholding
ESPP issuances
Restricted stock awards, net of forfeitures
|
2023-12-31 |
| 2023-11-09 | 2464.82 | 未披露 | 定期报告 | 2023-11-08 |
| 2023-11-09 | 2464.50 | 2.00 |
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From June 30, 2023 to September 30, 2023
DRIP shares issued
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
|
2023-09-30 |
| 2023-08-07 | 2467.09 | 未披露 | 定期报告 | 2023-08-04 |
| 2023-07-21 | 2465.24 | 未披露 | 定期报告 | 2023-07-20 |
| 2023-08-07 | 2460.90 | 未披露 |
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From March 31, 2023 to June 30, 2023
DRIP shares issued
Dividends declared related to RSA
Purchase of vested stock for employee payroll tax withholding
|
2023-06-30 |
| 2023-05-11 | 2460.86 | 未披露 | 定期报告 | 2023-05-10 |
| 2023-05-01 | 2555.94 | 未披露 | 定期报告 | 2023-05-01 |
| 2023-05-11 | 2460.90 | 未披露 |
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From December 31, 2022 to March 31, 2023
DRIP shares issued
Dividends declared related to RSA
Purchase of vested stock for employee payroll tax withholding
Issuance of Preferred stock
|
2023-03-31 |
| 2023-03-31 | 2461.75 | 未披露 | 定期报告 | 2023-03-15 |
| 2023-03-16 | 2460.86 | 未披露 | 定期报告 | 2023-03-14 |
| 2023-01-27 | 2461.75 | 未披露 | 定期报告 | 2023-01-26 |
| 2023-03-16 | 2460.90 | 未披露 |
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From December 31, 2021 to December 31, 2022
Issuance of common stock under dividend reinvestment plan
Stock-based compensation expense
Purchase of vested stock for employee payroll tax withholding
Issuance of common stock, net of offering costs
|
2022-12-31 |
| 2022-11-08 | 2442.48 | 未披露 | 定期报告 | 2022-11-07 |
| 2022-11-08 | 2442.50 | 未披露 | 定期报告 | 2022-09-30 |
| 2022-08-08 | 2435.56 | 未披露 | 定期报告 | 2022-08-05 |
| 2022-07-28 | 2418.68 | 未披露 | 定期报告 | 2022-07-20 |
| 2022-08-08 | 2418.70 | 未披露 | 定期报告 | 2022-06-30 |
| 2022-05-09 | 2416.11 | 未披露 | 定期报告 | 2022-05-06 |
| 2022-05-02 | 2416.47 | 未披露 | 定期报告 | 2022-05-02 |
| 2022-05-04 | 2416.10 | 未披露 | 定期报告 | 2022-03-31 |
| 2022-03-01 | 2415.87 | 未披露 | 定期报告 | 2022-02-28 |
| 2022-03-01 | 2415.90 | 未披露 | 定期报告 | 2021-12-31 |
| 2021-11-12 | 2407.19 | 未披露 | 定期报告 | 2021-11-11 |
| 2021-11-12 | 2255.90 | 未披露 | 定期报告 | 2021-09-30 |
| 2021-08-13 | 2254.73 | 未披露 | 定期报告 | 2021-08-12 |
| 2021-08-10 | 2253.00 | 未披露 | 定期报告 | 2021-06-30 |
| 2021-05-13 | 2250.97 | 未披露 | 定期报告 | 2021-05-12 |
| 2021-04-29 | 2240.60 | 未披露 | 定期报告 | 2021-04-29 |
| 2021-05-11 | 2253.00 | 未披露 | 定期报告 | 2021-03-31 |
| 2021-03-29 | 2240.05 | 未披露 | 定期报告 | 2021-03-26 |
| 2021-03-22 | 2197.00 | 未披露 | 定期报告 | 2020-12-31 |
| 2020-11-12 | 2178.17 | 未披露 | 定期报告 | 2020-11-11 |
| 2020-11-05 | 2143.50 | 未披露 | 定期报告 | 2020-09-30 |
| 2020-08-10 | 2118.35 | 未披露 | 定期报告 | 2020-08-06 |
| 2020-08-06 | 2090.50 | 未披露 | 定期报告 | 2020-06-30 |
| 2020-06-05 | 2090.67 | 未披露 | 定期报告 | 2020-05-29 |
| 2020-05-11 | 2090.36 | 未披露 | 定期报告 | 2020-05-08 |
| 2020-04-29 | 2090.67 | 未披露 | 定期报告 | 2020-04-22 |
| 2020-05-08 | 2083.80 | 未披露 | 定期报告 | 2020-03-31 |
| 2020-03-16 | 2082.04 | 未披露 | 定期报告 | 2020-03-13 |
| 2020-03-04 | 2053.00 | 未披露 | 定期报告 | 2019-12-31 |
| 2019-11-12 | 1981.60 | 未披露 | 定期报告 | 2019-11-11 |
| 2019-11-12 | 1944.70 | 未披露 | 定期报告 | 2019-09-30 |
| 2019-08-09 | 1916.20 | 未披露 | 定期报告 | 2019-08-08 |
| 2019-07-10 | 1912.25 | 未披露 | 定期报告 | 2019-07-01 |
| 2019-08-09 | 1913.70 | 未披露 | 定期报告 | 2019-06-30 |
| 2019-05-03 | 1911.54 | 未披露 | 定期报告 | 2019-05-03 |
| 2019-04-30 | 1910.96 | 未披露 | 定期报告 | 2019-04-18 |
| 2019-05-03 | 1907.30 | 未披露 | 定期报告 | 2019-03-31 |
| 2019-03-18 | 1905.87 | 未披露 | 定期报告 | 2019-03-14 |
| 2019-03-18 | 1891.90 | 未披露 | 定期报告 | 2018-12-31 |
| 2018-11-09 | 1889.81 | 未披露 | 定期报告 | 2018-11-08 |
| 2018-11-09 | 1884.90 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-08 | 1879.23 | 未披露 | 定期报告 | 2018-08-08 |
| 2018-08-08 | 1874.50 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-06-26 | 1866.67 | 未披露 | 定期报告 | 2018-06-25 |
| 2018-06-22 | 1874.24 | 未披露 | 定期报告 | 2018-06-13 |
| 2018-05-09 | 1866.67 | 未披露 | 定期报告 | 2018-05-08 |
| 2018-04-30 | 1856.11 | 未披露 | 定期报告 | 2018-04-20 |
| 2018-05-09 | 1856.10 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-16 | 1854.70 | 未披露 | 定期报告 | 2018-03-15 |
| 2018-03-16 | 1845.70 | 未披露 | 定期报告 | 2017-12-31 |
| 2017-11-07 | 1800.42 | 未披露 | 定期报告 | 2017-11-07 |
| 2017-11-07 | 1773.00 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-07 | 1743.90 | 未披露 | 定期报告 | 2017-08-07 |
| 2017-08-03 | 1743.20 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-06-19 | 1743.23 | 未披露 | 定期报告 | 2017-06-09 |
| 2017-04-28 | 1729.23 | 未披露 | 定期报告 | 2017-04-28 |
| 2017-05-08 | 1722.00 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-03-13 | 1721.75 | 未披露 | 定期报告 | 2017-03-10 |
| 2017-03-07 | 1462.40 | 未披露 | 定期报告 | 2016-12-31 |
| 2016-11-07 | 1460.55 | 未披露 | 定期报告 | 2016-11-07 |
| 2016-11-03 | 1459.40 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-24 | 1459.14 | 未披露 | 定期报告 | 2016-08-22 |
| 2016-08-09 | 1449.13 | 未披露 | 定期报告 | 2016-08-09 |
| 2016-08-09 | 1448.40 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-10 | 1448.13 | 未披露 | 定期报告 | 2016-05-09 |
| 2016-05-10 | 1445.20 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-15 | 1452.24 | 未披露 | 定期报告 | 2016-03-10 |
| 2016-03-15 | 1450.90 | 未披露 |
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from December 31, 2014 to December 31, 2015
Issuance of common stock, net of offering costs
|
2015-12-31 |
| 2015-11-05 | 1265.33 | 未披露 | 定期报告 | 2015-10-28 |
| 2015-11-05 | 1035.30 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-04 | 1035.33 | 未披露 | 定期报告 | 2015-07-31 |
| 2015-07-30 | 1020.60 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-04-30 | 1021.71 | 未披露 | 定期报告 | 2015-05-15 |
| 2015-05-13 | 1020.63 | 未披露 | 定期报告 | 2015-05-11 |
| 2015-05-07 | 1020.60 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-31 | 1020.63 | 未披露 | 定期报告 | 2015-03-27 |
| 2015-03-31 | 1020.60 | 未披露 |
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from November 11 , 2014 to December 31,2014
Issuance of common stock, net of offering costs
|
2014-12-31 |
| 2014-11-14 | 756.88 | 未披露 | 定期报告 | 2014-11-12 |
| 2014-11-14 | 748.90 | 未披露 |
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Company’s Board of Directors approved the reverse split ratio of one new share for each five (1:5) of the Company’s current common shares. The reverse stock split is effective as of the close of business on October 22, 2014.
|
2014-10-23 |
| 2014-10-02 | 3780.71 | 未披露 | 定期报告 | 2014-09-08 |
| 2014-08-14 | 3779.01 | 未披露 | 定期报告 | 2014-08-12 |
| 2014-08-14 | 3561.90 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-12 | 3696.67 | 未披露 | 定期报告 | 2014-05-07 |
| 2014-05-12 | 3545.10 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-31 | 3696.67 | 未披露 | 定期报告 | 2014-03-27 |
| 2014-03-31 | 3538.50 | 未披露 |
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From December 31,2012 to December 31,2013
Issuance of treasury shares
Exercise of stock options
|
2013-12-31 |
| 2013-11-07 | 3538.59 | 未披露 | 定期报告 | 2013-11-04 |
| 2013-11-07 | 3532.70 | 未披露 | 定期报告 | 2013-09-30 |
| 2013-08-07 | 3538.09 | 未披露 | 定期报告 | 2013-08-05 |
| 2013-08-06 | 3530.70 | 未披露 | 定期报告 | 2013-06-30 |
| 2013-05-09 | 3696.67 | 未披露 | 定期报告 | 2013-05-08 |
| 2013-05-09 | 3525.80 | 未披露 | 定期报告 | 2013-03-31 |
| 2013-04-01 | 3531.19 | 未披露 | 定期报告 | 2013-03-29 |
| 2013-04-01 | 3517.80 | 未披露 |
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from December 31, 2011 to December 31, 2012
Exercise of options
Issuance of treasury shares
Purchase of treasury shares
|
2012-12-31 |
| 2012-11-01 | 3525.36 | 未披露 | 定期报告 | 2012-10-31 |
| 2012-10-31 | 3520.00 | 未披露 | 定期报告 | 2012-09-30 |
| 2012-08-06 | 3525.36 | 未披露 | 定期报告 | 2012-07-30 |
| 2012-07-31 | 3520.00 | 未披露 | 定期报告 | 2012-06-30 |
| 2012-05-10 | 3596.78 | 未披露 | 定期报告 | 2012-05-10 |
| 2012-05-08 | 3591.40 | 未披露 | 定期报告 | 2012-03-31 |
| 2012-03-19 | 3696.67 | 未披露 | 定期报告 | 2012-03-13 |
| 2012-03-19 | 3570.20 | 未披露 |
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from December 31, 2010 to December 31, 2011
Issuance of treasury shares
Purchase of treasury shares
|
2011-12-31 |
| 2011-08-12 | 3576.95 | 未披露 | 定期报告 | 2011-08-05 |
| 2011-08-10 | 3571.60 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-05-12 | 3675.49 | 未披露 | 定期报告 | 2011-05-09 |
| 2011-05-12 | 3571.60 | 未披露 | 定期报告 | 2011-03-31 |
| 2011-03-17 | 3675.49 | 未披露 | 定期报告 | 2011-03-15 |
| 2011-03-17 | 3566.60 | 未披露 |
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from December 31, 2009 to December 31, 2010
Option exercise
|
2010-12-31 |
| 2010-11-12 | 3675.49 | 未披露 | 定期报告 | 2010-11-08 |
| 2010-11-12 | 3566.60 | 未披露 | 定期报告 | 2010-09-30 |
| 2010-08-12 | 3674.19 | 未披露 | 定期报告 | 2010-08-09 |
| 2010-08-12 | 3565.30 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-03-15 | 3672.71 | 未披露 | 定期报告 | 2010-02-26 |
| 2010-03-15 | 3564.80 | 未披露 |
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From December 31, 2008 to December 31, 2009
Issuance of common stock
Purchase of treasury shares
Cancellation of treasury shares
|
2009-12-31 |
| 2009-03-24 | 3703.17 | 未披露 | 定期报告 | 2009-03-09 |
| 2009-03-24 | 3666.70 | 未披露 |
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From December 31, 2007 to December 31, 2008
Issuance of common stock
Deferred compensation relating to restricted stock
Acquisition of treasury shares from affiliate
Purchase of treasury shares
Issuance of treasury shares to 401k plan
|
2008-12-31 |
| 2008-03-31 | 3694.85 | 未披露 | 定期报告 | 2008-03-24 |
| 2008-03-31 | 3608.10 | 未披露 |
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From December 31, 2006 to December 31, 2007
Issuance of common stock
Deferred compensation relating to restricted stock
Exercise of stock options
Purchase of treasury shares
|
2007-12-31 |
| 2007-04-02 | 3668.91 | 未披露 | 定期报告 | 2007-03-26 |
| 2007-04-02 | 3547.90 | 未披露 |
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From December 31, 2005 to December 31, 2006
Adjustment to number of shares outstanding
Issuance of common stock
Deferred compensation relating to restricted stock and restricted stock unit issuances, net of amortization
Purchase of treasury shares
|
2006-12-31 |
| 2006-05-10 | 3486.72 | 未披露 | 定期报告 | 2006-05-08 |
| 2006-05-10 | 3480.90 | 未披露 |
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From December 31, 2004 to December 31, 2005
Issuance of common stock
Deferred compensation relating to restricted stock and restricted stock unit issuances, net of amortization
|
2005-12-31 |
| 2005-03-31 | 3390.52 | 未披露 | 定期报告 | 2005-03-31 |
| 2005-03-31 | 3387.33 | 未披露 |
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From December 31, 2003 to December 31, 2004
Issuance of common stock (other) and warrants
Issuance of commons stock - secondary offering
Issuance of common stock - acquisition of CrystalTech
Exercise of stock options, net
Deferred compensation relating to restricted stock and restricted stock unit issuances
|
2004-12-31 |
| 2004-03-30 | 2651.77 | 未披露 | 定期报告 | 2004-03-19 |
| 2004-03-30 | 2620.92 | 未披露 |
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From December 31, 2002 to December 31, 2003
Issuance of common stock
Exercise of stock options
Deferred compensation relating to restricted stock and restricted stock unit issuances
|
2003-12-31 |
| 2003-03-31 | 2541.08 | 未披露 | 定期报告 | 2003-03-17 |
| 2003-03-31 | 2534.14 | 未披露 |
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From December 31, 2001 to December 31, 2002
Issuance of Common Stock
Issuance of common stock to employees and consultants
|
2002-12-31 |
| 2002-04-01 | 2301.25 | 未披露 | 定期报告 | 2002-03-18 |
| 2002-04-01 | 2221.25 | 未披露 |
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From December 31, 2000 to December 31, 2001
Issuance of Common Stock and Warrants
|
2001-12-31 |
| 2001-03-02 | 2137.35 | 未披露 |
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From December 31, 1999 to December 31, 2000
Recapitalization of Company
|
2000-12-31 |
From June 30, 2025 to September 30, 2025
Securities purchase and exchange agreement
Issuance of preferred stock, net of issuance costs
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
Issuance of common stock, net of offering costs
Common stock offered 2,307,692 shares by the Company
From March 31, 2025 to June 30, 2025
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
Retirement of common shares
From December 31,2024 to March 31,2025
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
From December 31, 2023 to December 31, 2024
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
Retirement of common shares
ESPP issuances
Issuance of common stock, net of offering costs
From June 30, 2024 to September 30, 2024
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
ESPP issuances
From March 31, 2024 to June 30, 2024
Restricted stock awards, net of forfeitures
ESPP issuances
Dividends declared related to RSA, net of accrued dividends forfeited
Issuance of common stock, net of offering costs
From December 31, 2023 to March 31, 2024
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
ESPP issuances
Restricted stock awards, net of forfeitures
From December 31, 2022 to December 31, 2023
Dividends declared related to RSA, net of accrued dividends forfeited
DRIP shares issued
Purchase of vested stock for employee payroll tax withholding
ESPP issuances
Restricted stock awards, net of forfeitures
From June 30, 2023 to September 30, 2023
DRIP shares issued
Dividends declared related to RSA, net of accrued dividends forfeited
Purchase of vested stock for employee payroll tax withholding
Restricted stock awards, net of forfeitures
From March 31, 2023 to June 30, 2023
DRIP shares issued
Dividends declared related to RSA
Purchase of vested stock for employee payroll tax withholding
From December 31, 2022 to March 31, 2023
DRIP shares issued
Dividends declared related to RSA
Purchase of vested stock for employee payroll tax withholding
Issuance of Preferred stock
From December 31, 2021 to December 31, 2022
Issuance of common stock under dividend reinvestment plan
Stock-based compensation expense
Purchase of vested stock for employee payroll tax withholding
Issuance of common stock, net of offering costs
from December 31, 2014 to December 31, 2015
Issuance of common stock, net of offering costs
from November 11 , 2014 to December 31,2014
Issuance of common stock, net of offering costs
Company’s Board of Directors approved the reverse split ratio of one new share for each five (1:5) of the Company’s current common shares. The reverse stock split is effective as of the close of business on October 22, 2014.
From December 31,2012 to December 31,2013
Issuance of treasury shares
Exercise of stock options
from December 31, 2011 to December 31, 2012
Exercise of options
Issuance of treasury shares
Purchase of treasury shares
from December 31, 2010 to December 31, 2011
Issuance of treasury shares
Purchase of treasury shares
from December 31, 2009 to December 31, 2010
Option exercise
From December 31, 2008 to December 31, 2009
Issuance of common stock
Purchase of treasury shares
Cancellation of treasury shares
From December 31, 2007 to December 31, 2008
Issuance of common stock
Deferred compensation relating to restricted stock
Acquisition of treasury shares from affiliate
Purchase of treasury shares
Issuance of treasury shares to 401k plan
From December 31, 2006 to December 31, 2007
Issuance of common stock
Deferred compensation relating to restricted stock
Exercise of stock options
Purchase of treasury shares
From December 31, 2005 to December 31, 2006
Adjustment to number of shares outstanding
Issuance of common stock
Deferred compensation relating to restricted stock and restricted stock unit issuances, net of amortization
Purchase of treasury shares
From December 31, 2004 to December 31, 2005
Issuance of common stock
Deferred compensation relating to restricted stock and restricted stock unit issuances, net of amortization
From December 31, 2003 to December 31, 2004
Issuance of common stock (other) and warrants
Issuance of commons stock - secondary offering
Issuance of common stock - acquisition of CrystalTech
Exercise of stock options, net
Deferred compensation relating to restricted stock and restricted stock unit issuances
From December 31, 2002 to December 31, 2003
Issuance of common stock
Exercise of stock options
Deferred compensation relating to restricted stock and restricted stock unit issuances
From December 31, 2001 to December 31, 2002
Issuance of Common Stock
Issuance of common stock to employees and consultants
From December 31, 2000 to December 31, 2001
Issuance of Common Stock and Warrants
From December 31, 1999 to December 31, 2000
Recapitalization of Company