股本结构
单位：万股
| 公告日期 | 2025-11-04 | 2025-08-05 | 2025-05-01 | 2025-04-01 | 2025-02-24 | 2025-02-24 |
|---|---|---|---|---|---|---|
| 证券总股本 | 2059.05 | 2058.13 | 2049.07 | 2055.05 | 2024.19 | 2026.29 |
| 普通股本 | 2059.05 | 2058.13 | 2049.07 | 2055.05 | 2024.19 | 2026.29 |
| 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 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2025-03-20 | 2025-02-18 | 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 |
|---|---|---|---|---|
| 2025-11-04 | 2059.05 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2025-09-30 |
| 2025-08-05 | 2058.13 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2025-06-30 |
| 2025-05-01 | 2049.07 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2025-03-31 |
| 2025-04-01 | 2055.05 | 未披露 | 定期报告 | 2025-03-20 |
| 2025-02-24 | 2024.19 | 未披露 | 定期报告 | 2025-02-18 |
| 2025-02-24 | 2026.29 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2024-12-31 |
| 2024-11-04 | 2002.65 | 未披露 | 定期报告 | 2024-10-31 |
| 2024-11-04 | 2003.63 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2024-09-30 |
| 2024-08-01 | 2003.88 | 未披露 | 定期报告 | 2024-07-30 |
| 2024-08-01 | 2004.14 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Shares issued in connection with stock compensation plans
|
2024-06-30 |
| 2024-06-06 | 2003.91 | 未披露 | 定期报告 | 2024-06-04 |
| 2024-05-02 | 1998.21 | 未披露 | 定期报告 | 2024-04-30 |
| 2024-05-02 | 1998.23 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2024-03-31 |
| 2024-04-02 | 1998.23 | 未披露 | 定期报告 | 2024-03-21 |
| 2024-02-23 | 1978.62 | 未披露 | 定期报告 | 2024-02-20 |
| 2024-02-23 | 1977.78 | 未披露 |
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From December 31,2022 to December 31,2023
Shares issued in connection with stock compensation plans
|
2023-12-31 |
| 2023-11-02 | 1976.16 | 未披露 | 定期报告 | 2023-10-30 |
| 2023-11-02 | 1976.37 | 未披露 |
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From June 30, 2023 to September 30, 2023
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2023-09-30 |
| 2023-08-08 | 1976.43 | 未披露 | 定期报告 | 2023-08-03 |
| 2023-08-08 | 1976.45 | 未披露 |
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From March 31, 2023 to June 30, 2023
Shares issued in connection with stock compensation plans
|
2023-06-30 |
| 2023-05-04 | 1971.66 | 未披露 |
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From December 31, 2022 to March 31, 2023
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2023-03-31 |
| 2023-03-31 | 1971.66 | 未披露 | 定期报告 | 2023-03-30 |
| 2023-03-28 | 1971.68 | 未披露 | 定期报告 | 2023-03-16 |
| 2023-03-16 | 1971.81 | 未披露 | 定期报告 | 2023-03-15 |
| 2023-02-27 | 1962.54 | 未披露 | 定期报告 | 2023-02-20 |
| 2023-02-27 | 1953.49 | 未披露 |
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From December 31, 2021 to December 31, 2022
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2022-12-31 |
| 2022-11-03 | 1952.96 | 未披露 | 定期报告 | 2022-11-03 |
| 2022-11-03 | 1952.99 | 未披露 |
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From June 30, 2022 to September 30, 2022
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2022-09-30 |
| 2022-08-04 | 1952.81 | 未披露 | 定期报告 | 2022-08-04 |
| 2022-08-04 | 1952.22 | 未披露 |
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From March 31, 2022 to June 30, 2022
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2022-06-30 |
| 2022-05-05 | 1949.72 | 未披露 | 定期报告 | 2022-05-05 |
| 2022-04-07 | 1949.75 | 未披露 | 定期报告 | 2022-04-05 |
| 2022-05-05 | 1949.71 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Shares issued in connection with stock compensation plans
|
2022-03-31 |
| 2022-03-31 | 1945.75 | 未披露 | 定期报告 | 2022-03-17 |
| 2022-03-01 | 1934.63 | 未披露 | 定期报告 | 2022-02-28 |
| 2022-03-01 | 1935.04 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Shares issued in connection with equity offering
Shares issued in connection with at-the-market offering program
Shares issued in connection with stock compensation plans
Shares issued in connection with acquisition
Treasury stock activity
|
2021-12-31 |
| 2021-10-21 | 1872.48 | 未披露 | 定期报告 | 2021-09-30 |
| 2021-07-22 | 1872.51 | 未披露 | 定期报告 | 2021-07-22 |
| 2021-07-22 | 1872.50 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Shares issued in connection with equity offering
Shares issued in connection with stock compensation plans
|
2021-06-30 |
| 2021-05-07 | 1833.35 | 未披露 |
更多>>
1.Common stock offered 2,500,000 shares.
2.The number of shares of common stock outstanding immediately after this offering is based on 15,833,470 shares of common stock issued and outstanding as of April 30, 2021.
|
2021-05-07 |
| 2021-04-22 | 1583.35 | 未披露 |
更多>>
from December 31, 2020 to March 31, 2021
Shares issued in connection with at-the-market offering program
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2021-03-31 |
| 2021-04-02 | 1579.26 | 未披露 | 定期报告 | 2021-03-18 |
| 2021-02-22 | 1538.93 | 未披露 |
更多>>
From December 31, 2019 to December 31, 2020
Shares issued in connection with at-the-market offering program
Shares issued in connection with stock compensation plans
|
2020-12-31 |
| 2020-10-22 | 1477.37 | 未披露 | 定期报告 | 2020-10-21 |
| 2020-10-22 | 1477.22 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2020-09-30 |
| 2020-07-23 | 1476.93 | 未披露 | 定期报告 | 2020-07-23 |
| 2020-07-23 | 1476.93 | 未披露 |
更多>>
From March 31, 2020 to June 30, 2020
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2020-06-30 |
| 2020-04-23 | 1475.12 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2020-03-31 |
| 2020-04-08 | 1475.17 | 未披露 | 定期报告 | 2020-03-26 |
| 2020-02-24 | 1465.27 | 未披露 |
更多>>
From December 31, 2018 to December 31, 2019
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2019-12-31 |
| 2019-10-25 | 1464.58 | 未披露 | 定期报告 | 2019-10-23 |
| 2019-10-25 | 1464.53 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Shares issued in connection with stock compensation plans
Treasury stock activity and transfers of stock to rabbi trust
|
2019-09-30 |
| 2019-07-25 | 1464.61 | 未披露 | 定期报告 | 2019-07-25 |
| 2019-07-25 | 1464.71 | 未披露 |
更多>>
from March 31, 2019 to June 30, 2019
Shares issued in connection with stock compensation plans
|
2019-06-30 |
| 2019-04-25 | 1498.54 | 未披露 | 定期报告 | 2019-04-25 |
| 2019-04-25 | 1498.57 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Shares issued in connection with stock compensation plans
Treasury stock activity
|
2019-03-31 |
| 2019-03-26 | 1498.85 | 未披露 | 定期报告 | 2019-03-22 |
| 2019-02-21 | 1490.29 | 未披露 | 定期报告 | 2019-02-21 |
| 2019-02-21 | 1490.58 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Treasury stock purchases
Shares issued in connection with stock compensation plans
|
2018-12-31 |
| 2018-10-25 | 1489.85 | 未披露 | 定期报告 | 2018-10-25 |
| 2018-10-25 | 1489.60 | 未披露 |
更多>>
from December 31, 2017 to September 30, 2018
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2018-09-30 |
| 2018-07-26 | 1488.87 | 未披露 | 定期报告 | 2018-07-26 |
| 2018-07-26 | 1489.97 | 未披露 |
更多>>
from December 31, 2017 to June 30, 2018
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2018-06-30 |
| 2018-04-16 | 1487.52 | 未披露 | 定期报告 | 2018-04-06 |
| 2018-04-26 | 1487.62 | 未披露 |
更多>>
from December 31, 2017 to March 31, 2018
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2018-03-31 |
| 2018-03-08 | 1490.52 | 未披露 | 定期报告 | 2018-03-08 |
| 2018-03-08 | 1478.20 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2017-12-31 |
| 2017-10-26 | 1476.93 | 未披露 |
更多>>
from December 31, 2016 to September 30, 2017
Shares issued in connection with stock compensation plans
|
2017-09-30 |
| 2017-07-27 | 1477.07 | 未披露 |
更多>>
from December 31, 2016 to June 30, 2017
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2017-06-30 |
| 2017-04-12 | 1472.42 | 未披露 | 定期报告 | 2017-04-07 |
| 2017-04-27 | 1472.46 | 未披露 |
更多>>
from December 31, 2016 to March 31, 2017
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2017-03-31 |
| 2017-04-05 | 1472.56 | 未披露 | 定期报告 | 2017-03-24 |
| 2017-03-10 | 1476.10 | 未披露 | 定期报告 | 2017-03-09 |
| 2017-03-09 | 1449.64 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2016-12-31 |
| 2016-10-27 | 1448.23 | 未披露 | 定期报告 | 2016-10-27 |
| 2016-10-27 | 1448.46 | 未披露 |
更多>>
From December 31, 2015 to September 30, 2016
Shares issued in connection with stock compensation plans
|
2016-09-30 |
| 2016-09-23 | 1448.91 | 未披露 | 定期报告 | 2016-09-14 |
| 2016-07-28 | 1447.25 | 未披露 |
更多>>
From December 31, 2015 to June 30, 2016
Shares issued in connection with stock compensation plans
Treasury stock purchases
|
2016-06-30 |
| 2016-04-29 | 1438.55 | 未披露 |
更多>>
From December 31, 2015 to March 31, 2016
Shares issued in connection with stock compensation plans
|
2016-03-31 |
| 2016-04-01 | 1438.54 | 未披露 | 定期报告 | 2016-03-24 |
| 2016-03-11 | 1432.43 | 未披露 | 定期报告 | 2016-03-09 |
| 2016-03-11 | 1421.21 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Shares issued in connection with stock compensation plans
|
2015-12-31 |
| 2015-10-30 | 1419.37 | 未披露 |
更多>>
from December 31, 2014 to September 30, 2015
Shares issued in connection with stock compensation plans
|
2015-09-30 |
| 2015-07-28 | 1419.27 | 未披露 | 定期报告 | 2015-07-28 |
| 2015-07-28 | 1419.60 | 未披露 |
更多>>
from December 31, 2014 to June 30, 2015
Shares issued in connection with stock compensation plans
|
2015-06-30 |
| 2015-04-28 | 1414.19 | 未披露 | 定期报告 | 2015-04-28 |
| 2015-04-28 | 1414.61 | 未披露 |
更多>>
from December 31, 2014 to March 31, 2015
Shares issued in connection with stock compensation plans
|
2015-03-31 |
| 2015-03-16 | 1414.61 | 未披露 | 定期报告 | 2015-03-13 |
| 2015-03-16 | 1399.71 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Shares issued in connection with stock compensation plans
|
2014-12-31 |
| 2014-07-29 | 1397.91 | 未披露 |
更多>>
from December 31, 2013 to June 30, 2014
Shares issued in connection with stock compensation plans
|
2014-06-30 |
| 2014-04-29 | 1394.41 | 未披露 |
更多>>
from December 31, 2013 to March 31, 2014
Shares issued in connection with stock compensation plans
|
2014-03-31 |
| 2014-03-07 | 1393.41 | 未披露 | 定期报告 | 2014-03-07 |
| 2014-03-07 | 1377.23 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Shares issued in connection with stock compensation plans
|
2013-12-31 |
| 2013-10-30 | 1376.00 | 未披露 | 定期报告 | 2013-10-30 |
| 2013-10-30 | 1375.90 | 未披露 |
更多>>
from December 31, 2012 to September 30, 2013
Shares issued in connection with stock compensation plans
|
2013-09-30 |
| 2013-07-30 | 1375.38 | 未披露 | 定期报告 | 2013-07-30 |
| 2013-07-30 | 1375.02 | 未披露 |
更多>>
from December 31, 2012 to June 30, 2013
Shares issued in connection with stock compensation plans
|
2013-06-30 |
| 2013-03-14 | 1368.33 | 未披露 |
更多>>
from December 31, 2012 to March 14, 2013
Shares issued in connection with stock compensation plans
|
2013-03-14 |
| 2013-03-14 | 1351.96 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Shares issued in connection with stock compensation plans
|
2012-12-31 |
| 2012-07-31 | 1351.15 | 未披露 |
更多>>
from December 31, 2011 to June 30, 2012
Shares issued in connection with stock compensation plans
|
2012-06-30 |
| 2012-03-09 | 1348.32 | 未披露 | 定期报告 | 2012-03-05 |
| 2012-03-09 | 1336.72 | 未披露 |
更多>>
from Dec 31,2010 to Dec 31,2011
Shares issued in connection with stock compensation plans
|
2011-12-31 |
| 2011-08-02 | 1335.36 | 未披露 |
更多>>
From Dec 31 2010 to Jun 30 2011
Shares issued in connection with stock compensation plans
|
2011-06-30 |
| 2011-04-28 | 1333.07 | 未披露 |
更多>>
Shares issued in connection with stock compensation plans
|
2011-03-31 |
| 2011-02-28 | 1332.97 | 未披露 | 定期报告 | 2011-02-23 |
| 2011-02-28 | 1322.47 | 未披露 |
更多>>
Shares issued for AECO acquisition
Shares issued in connection with stock compensation plans
|
2010-12-31 |
| 2010-07-29 | 1320.22 | 未披露 | 定期报告 | 2010-07-29 |
| 2010-07-29 | 1319.92 | 未披露 |
更多>>
Shares issued for AECO acquisition
Shares issued in connection with stock compensation plans
|
2010-06-30 |
| 2010-04-29 | 1295.97 | 未披露 |
更多>>
Shares issued in connection with stock compensation plans
|
2010-03-31 |
| 2010-03-12 | 1295.94 | 未披露 | 定期报告 | 2010-03-12 |
| 2010-03-12 | 1287.04 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Shares issued for LRI acquisition
Shares issued in connection with stock compensation plans
|
2009-12-31 |
| 2009-03-13 | 1284.14 | 未披露 | 定期报告 | 2009-03-06 |
| 2009-03-13 | 1278.09 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Shares issued for stock option exercises
Restricted stock awards
Shares issued in connection with the employee stock purchase plan
|
2008-12-31 |
| 2008-03-14 | 1259.95 | 未披露 | 定期报告 | 2008-03-04 |
| 2008-03-14 | 1243.38 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Shares issued for DYNAenergetics acquisition
Shares issued for stock option exercises
Restricted stock awards
Shares issued in connection with the employee stock purchase plan
|
2007-12-31 |
| 2007-03-08 | 1208.57 | 未披露 | 定期报告 | 2007-02-28 |
| 2007-03-08 | 1198.20 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Shares issued for stock option exercises
Restricted stock awards
Shares issued in connection with the employee stock purchase plan
|
2006-12-31 |
| 2006-03-15 | 1177.24 | 未披露 | 定期报告 | 2006-02-28 |
| 2006-03-15 | 1175.89 | 未披露 |
更多>>
from December 31, 2004 to December 31, 2005
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
Conversion of subordinated note
On September 23, 2005, the Company announced that its Board of Directors approved a 2-for-1 split of the Company’s common stock
|
2005-12-31 |
| 2005-03-22 | 539.14 | 未披露 | 定期报告 | 2005-03-11 |
| 2005-03-22 | 532.04 | 未披露 |
更多>>
from December 31, 2003 to December 31, 2004
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
|
2004-12-31 |
| 2004-03-22 | 508.96 | 未披露 | 定期报告 | 2004-03-12 |
| 2004-03-22 | 508.89 | 未披露 |
更多>>
from December 31, 2002 to December 31, 2003
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
|
2003-12-31 |
| 2003-03-31 | 506.14 | 未披露 |
更多>>
from December 31, 2001 to December 31, 2002
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
|
2002-12-31 |
| 2002-03-29 | 503.20 | 未披露 | 定期报告 | 2002-03-15 |
| 2002-03-29 | 503.00 | 未披露 |
更多>>
from December 31, 2000 to December 31, 2001
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
|
2001-12-31 |
| 2001-03-28 | 499.03 | 未披露 |
更多>>
from December 31, 1999 to December 31, 2000
Common stock issued to SNPE, Inc., net $563,748 in of issuance costs
Common stock issued in connection with the Employee Stock Purchase Plan
Forfeiture of restricted stock grant
|
2000-12-31 |
| 2000-03-30 | 284.24 | 未披露 |
更多>>
from December 31, 1998 to December 31, 1999
Common stock issued for stock option exercises
Common stock issued in connection with the Employee Stock Purchase Plan
|
1999-12-31 |
| 1999-03-31 | 283.46 | 未披露 | 定期报告 | 1999-03-22 |
| 1999-03-31 | 279.84 | 未披露 |
更多>>
from December 31, 1997 to December 31, 1998
Common stock issued for stock option exercises
Common stock issued in connection with the Employee Stock Purchase Plan
Shares issued in connection with the purchase of Spin Forge
Restricted stock grant related to the purchase of Spin Forge
Shares issued in connection with the purchase of PMP
Shares repurchased from related party
Shares received from related party in partial satisfaction of related party receivable
|
1998-12-31 |
| 1999-03-31 | 271.87 | 未披露 |
更多>>
from December 31, 1996 to December 31, 1997
Common stock issued for stock option exercises
|
1997-12-31 |
From June 30, 2025 to September 30, 2025
Shares issued in connection with stock compensation plans
Treasury stock activity
From March 31, 2025 to June 30, 2025
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2024 to March 31, 2025
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2023 to December 31, 2024
Shares issued in connection with stock compensation plans
Treasury stock activity
From June 30, 2024 to September 30, 2024
Shares issued in connection with stock compensation plans
Treasury stock activity
From March 31, 2024 to June 30, 2024
Shares issued in connection with stock compensation plans
From December 31, 2023 to March 31, 2024
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31,2022 to December 31,2023
Shares issued in connection with stock compensation plans
From June 30, 2023 to September 30, 2023
Shares issued in connection with stock compensation plans
Treasury stock activity
From March 31, 2023 to June 30, 2023
Shares issued in connection with stock compensation plans
From December 31, 2022 to March 31, 2023
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2021 to December 31, 2022
Shares issued in connection with stock compensation plans
Treasury stock activity
From June 30, 2022 to September 30, 2022
Shares issued in connection with stock compensation plans
Treasury stock activity
From March 31, 2022 to June 30, 2022
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2021 to March 31, 2022
Shares issued in connection with stock compensation plans
From December 31, 2020 to December 31, 2021
Shares issued in connection with equity offering
Shares issued in connection with at-the-market offering program
Shares issued in connection with stock compensation plans
Shares issued in connection with acquisition
Treasury stock activity
From March 31, 2021 to June 30, 2021
Shares issued in connection with equity offering
Shares issued in connection with stock compensation plans
1.Common stock offered 2,500,000 shares.
2.The number of shares of common stock outstanding immediately after this offering is based on 15,833,470 shares of common stock issued and outstanding as of April 30, 2021.
from December 31, 2020 to March 31, 2021
Shares issued in connection with at-the-market offering program
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2019 to December 31, 2020
Shares issued in connection with at-the-market offering program
Shares issued in connection with stock compensation plans
From June 30, 2020 to September 30, 2020
Shares issued in connection with stock compensation plans
Treasury stock activity
From March 31, 2020 to June 30, 2020
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2019 to March 31, 2020
Shares issued in connection with stock compensation plans
Treasury stock activity
From December 31, 2018 to December 31, 2019
Shares issued in connection with stock compensation plans
Treasury stock activity
from June 30, 2019 to September 30, 2019
Shares issued in connection with stock compensation plans
Treasury stock activity and transfers of stock to rabbi trust
from March 31, 2019 to June 30, 2019
Shares issued in connection with stock compensation plans
from December 31, 2018 to March 31, 2019
Shares issued in connection with stock compensation plans
Treasury stock activity
from December 31, 2017 to December 31, 2018
Treasury stock purchases
Shares issued in connection with stock compensation plans
from December 31, 2017 to September 30, 2018
Shares issued in connection with stock compensation plans
Treasury stock purchases
from December 31, 2017 to June 30, 2018
Shares issued in connection with stock compensation plans
Treasury stock purchases
from December 31, 2017 to March 31, 2018
Shares issued in connection with stock compensation plans
Treasury stock purchases
from December 31, 2016 to December 31, 2017
Shares issued in connection with stock compensation plans
Treasury stock purchases
from December 31, 2016 to September 30, 2017
Shares issued in connection with stock compensation plans
from December 31, 2016 to June 30, 2017
Shares issued in connection with stock compensation plans
Treasury stock purchases
from December 31, 2016 to March 31, 2017
Shares issued in connection with stock compensation plans
Treasury stock purchases
from December 31, 2015 to December 31, 2016
Shares issued in connection with stock compensation plans
Treasury stock purchases
From December 31, 2015 to September 30, 2016
Shares issued in connection with stock compensation plans
From December 31, 2015 to June 30, 2016
Shares issued in connection with stock compensation plans
Treasury stock purchases
From December 31, 2015 to March 31, 2016
Shares issued in connection with stock compensation plans
from December 31, 2014 to December 31, 2015
Shares issued in connection with stock compensation plans
from December 31, 2014 to September 30, 2015
Shares issued in connection with stock compensation plans
from December 31, 2014 to June 30, 2015
Shares issued in connection with stock compensation plans
from December 31, 2014 to March 31, 2015
Shares issued in connection with stock compensation plans
from December 31, 2013 to December 31, 2014
Shares issued in connection with stock compensation plans
from December 31, 2013 to June 30, 2014
Shares issued in connection with stock compensation plans
from December 31, 2013 to March 31, 2014
Shares issued in connection with stock compensation plans
from December 31, 2012 to December 31, 2013
Shares issued in connection with stock compensation plans
from December 31, 2012 to September 30, 2013
Shares issued in connection with stock compensation plans
from December 31, 2012 to June 30, 2013
Shares issued in connection with stock compensation plans
from December 31, 2012 to March 14, 2013
Shares issued in connection with stock compensation plans
from December 31, 2011 to December 31, 2012
Shares issued in connection with stock compensation plans
from December 31, 2011 to June 30, 2012
Shares issued in connection with stock compensation plans
from Dec 31,2010 to Dec 31,2011
Shares issued in connection with stock compensation plans
From Dec 31 2010 to Jun 30 2011
Shares issued in connection with stock compensation plans
Shares issued in connection with stock compensation plans
Shares issued for AECO acquisition
Shares issued in connection with stock compensation plans
Shares issued for AECO acquisition
Shares issued in connection with stock compensation plans
Shares issued in connection with stock compensation plans
from December 31, 2008 to December 31, 2009
Shares issued for LRI acquisition
Shares issued in connection with stock compensation plans
from December 31, 2007 to December 31, 2008
Shares issued for stock option exercises
Restricted stock awards
Shares issued in connection with the employee stock purchase plan
from December 31, 2006 to December 31, 2007
Shares issued for DYNAenergetics acquisition
Shares issued for stock option exercises
Restricted stock awards
Shares issued in connection with the employee stock purchase plan
from December 31, 2005 to December 31, 2006
Shares issued for stock option exercises
Restricted stock awards
Shares issued in connection with the employee stock purchase plan
from December 31, 2004 to December 31, 2005
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
Conversion of subordinated note
On September 23, 2005, the Company announced that its Board of Directors approved a 2-for-1 split of the Company’s common stock
from December 31, 2003 to December 31, 2004
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
from December 31, 2002 to December 31, 2003
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
from December 31, 2001 to December 31, 2002
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
from December 31, 2000 to December 31, 2001
Shares issued for stock option exercises
Shares issued in connection with the employee stock purchase plan
from December 31, 1999 to December 31, 2000
Common stock issued to SNPE, Inc., net $563,748 in of issuance costs
Common stock issued in connection with the Employee Stock Purchase Plan
Forfeiture of restricted stock grant
from December 31, 1998 to December 31, 1999
Common stock issued for stock option exercises
Common stock issued in connection with the Employee Stock Purchase Plan
from December 31, 1997 to December 31, 1998
Common stock issued for stock option exercises
Common stock issued in connection with the Employee Stock Purchase Plan
Shares issued in connection with the purchase of Spin Forge
Restricted stock grant related to the purchase of Spin Forge
Shares issued in connection with the purchase of PMP
Shares repurchased from related party
Shares received from related party in partial satisfaction of related party receivable
from December 31, 1996 to December 31, 1997
Common stock issued for stock option exercises