数据中心
龙虎榜
大单追踪
资金流向
业绩预告
新股申购
行情中心
沪深市场
香港市场
美国市场
全球市场
行业风云
全球市场
向上 向下

   OPTT
-- -- --

今开：-- 昨收：-- 最高：-- 最低：--
成交量：--万手 市盈率：-- 总市值($)：-- 换手率：--
加入自选股

首页概览 公司概况 财务分析 高管介绍 股本结构 公司新闻

股本结构

单位：万股
公告日期 2024-03-13 2024-03-13 2023-12-01 2023-11-29 2023-12-13 2023-09-13
证券总股本 5946.36 5946.31 5878.87 6082.99 5878.88 5873.20
普通股本 5946.36 5946.31 5878.87 6082.99 5878.88 5873.20
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 2024-03-11 2024-01-31 2023-11-27 2023-11-24 2023-10-31 2023-07-31
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
2024-03-13 5946.36 未披露 定期报告 2024-03-11
2024-03-13 5946.31 未披露
更多>>
From November 1, 2023 to January 31, 2024 Common stock issued upon vesting of restricted stock Shares withheld for tax withholdings
2024-01-31
2023-12-01 5878.87 未披露 定期报告 2023-11-27
2023-11-29 6082.99 未披露 定期报告 2023-11-24
2023-12-13 5878.88 未披露
更多>>
From August 1, 2023 to October 31, 2023 Common stock issued upon vesting of restricted stock Issuance of common stock - Cantor At The Market offering, net of issuance costs Acquisition of treasury stock
2023-10-31
2023-08-24 5878.76 未披露 定期报告 2023-08-22
2023-09-13 5873.20 未披露
更多>>
From May 1, 2023 to July 31, 2023 Common stock issued related to bonus and earn out payments Common stock issued upon vesting of restricted stock
2023-07-31
2023-06-30 5873.09 未披露 定期报告 2023-06-29
2023-07-28 5626.37 未披露
更多>>
From April 30, 2022 to April 30, 2023 Common stock issued upon vesting of restricted stock units Shares withheld for tax withholdings
2023-04-30
2023-03-13 5621.37 未披露
更多>>
From May 1, 2022 to January 31, 2023 Common stock issued upon vesting of restricted stock Acquisition of treasury stock
2023-01-31
2022-12-14 5592.19 未披露 定期报告 2022-12-14
2022-12-14 5589.85 未披露 定期报告 2022-10-31
2022-10-19 5592.19 未披露 定期报告 2022-10-18
2022-09-12 5592.29 未披露 定期报告 2022-09-12
2022-09-12 5589.85 未披露
更多>>
From May 1, 2021 to July 31, 2022 Common stock issued upon vesting of restricted stock
2022-07-31
2022-07-13 5588.19 未披露 定期报告 2022-07-13
2022-07-13 5590.52 未披露
更多>>
From April 30, 2021 to April 30, 2022 Proceeds from stock options exercises Issuance of shares in acquisition Acquisition of treasury stock
2022-04-30
2022-03-14 5589.42 未披露
更多>>
From May 1, 2021 to January 31, 2022 Proceeds from stock options exercises Issuance of shares for acquisition
2022-01-31
2022-01-10 5587.32 未披露 定期报告 2022-01-05
2021-12-14 5587.32 未披露 定期报告 2021-12-14
2021-11-19 5583.32 未披露 定期报告 2021-11-16
2021-12-14 5247.80 未披露
更多>>
From May 1, 2021 to October 31, 2021 Proceeds from stock options exercises
2021-10-31
2021-08-27 5245.80 未披露 定期报告 2021-08-25
2021-07-19 5243.70 未披露
更多>>
From April 30, 2020 To April 30, 2021 Proceeds from stock options exercises Exercise of common warrants, net of costs Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs Issuance of shares in acquisition
2021-04-30
2021-03-05 5098.58 未披露 定期报告 2021-03-01
2021-03-05 5056.88 未披露
更多>>
From November 1, 2020 to January 31, 2021 Proceeds from stock options exercises Exercise of common warrants, net of costs Issuance of common stock- Aspire financing, net of issuance costs Market offering, net of issuance costs Acquisition of treasury stock
2021-01-31
2020-12-04 3079.84 未披露 定期报告 2020-12-01
2020-11-20 2847.01 未披露 定期报告 2020-11-18
2020-12-07 2414.93 未披露
更多>>
From August 1, 2020 to October 31, 2020 Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs
2020-10-31
2020-11-02 2414.93 未披露 定期报告 2020-10-30
2020-11-02 2358.97 未披露 定期报告 2020-10-18
2020-10-09 2308.97 未披露 定期报告 2020-10-08
2020-09-14 1862.06 未披露
更多>>
From May 1, 2020 to July 31, 2020 Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs
2020-07-31
2020-06-29 1712.06 未披露 定期报告 2020-06-23
2020-06-12 1612.06 未披露 定期报告 2020-06-05
2020-06-29 1293.52 未披露
更多>>
From April 30, 2019 to April 30, 2020 Issuance (forfeiture) of restricted stock, net Exercise of prefunded warrants, net of issuance costs Common stock issued for commitment fee- Aspire Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs Acquisition of treasury stock
2020-04-30
2020-03-09 925.55 未披露 定期报告 2020-03-05
2020-02-07 870.47 未披露 定期报告 2020-02-04
2020-03-09 869.51 未披露
更多>>
from October 31, 2019 to January 31, 2020 Issuance of restricted stock, net Exercise of prefunded warrants, net of issuance costs Sale of stock to Aspire ELOC, net of financing costs Sale of stock thru AGP ATM, net of financing costs
2020-01-31
2019-12-09 756.11 未披露 定期报告 2019-12-02
2019-11-05 678.80 未披露 定期报告 2019-11-04
2019-12-09 648.54 未披露
更多>>
from July 31, 2019 to October 31, 2019 Issuance/(forfeiture) of restricted stock, net Acquisition of treasury stock Exercise of pre-funded warrants
2019-10-31
2019-10-25 609.81 未披露 定期报告 2019-10-24
2019-09-16 577.11 未披露
更多>>
from April 30, 2019 to July 31, 2019 Issuance/(forfeiture) of restricted stock, net Acquisition of treasury stock Exercise of pre-funded warrants
2019-07-31
2019-07-22 577.17 未披露 定期报告 2019-07-15
2019-07-22 542.17 未披露
更多>>
From April 30, 2018 to April 30, 2019 Issuance/(forfeiture) of restricted stock, net Common stock issued for commitment fee Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs Issuance of common stock, common and pre-funded warrants, net of issuance costs Exercise of pre-funded warrants
2019-04-30
2019-04-03 124.85 未披露 定期报告 2019-03-27
2019-03-11 114.00 未披露
更多>>
Reflects a one-for-twenty reverse stock split of our issued and outstanding shares of common stock, options and warrants effective March 12, 2019 and the corresponding adjustment of all common stock prices per share and stock option and warrant exercise prices per share and conversion ratios.
2019-03-12
2019-03-11 2272.60 未披露 定期报告 2019-03-05
2019-03-11 2031.43 未披露
更多>>
From April 30, 2018 to January 31, 2019 Issuance of restricted stock, net Sale of stock, net of financing costs Common stock issued for commitment fee Acquisition of treasury stock
2019-01-31
2018-12-10 1899.21 未披露
更多>>
From April 30, 2018 to October 31, 2018 Issuance of restricted stock, net Sale of stock, net of financing costs Common stock issued for commitment fee Acquisition of treasury stock
2018-10-31
2018-10-12 1879.21 未披露 定期报告 2018-10-12
2018-10-12 1879.36 未披露 定期报告 2018-09-28
2018-09-12 1879.69 未披露 定期报告 2018-09-06
2018-08-13 1836.83 未披露
更多>>
From April 30, 2018 to July 31, 2018 Issuance of restricted stock, net
2018-07-31
2018-07-17 1836.83 未披露 定期报告 2018-07-05
2018-03-06 1835.09 未披露
更多>>
From April 30, 2017 To January 31, 2018 Issuance of restricted stock, net Sale of stock, net of financing costs Acquisition of treasury stock
2018-01-31
2017-12-12 1826.39 未披露
更多>>
From April 30, 2017 To October 31, 2017 Issuance of restricted stock, net Sale of stock, net of financing costs Acquisition of treasury stock
2017-10-31
2017-08-25 1252.61 未披露 定期报告 2017-08-24
2017-09-07 1255.11 未披露
更多>>
From April 30, 2017 to July 31, 2017 Issuance of restricted stock, net Sale of stock, net of financing costs Acquisition of treasury stock
2017-07-31
2017-07-14 1257.33 未披露 定期报告 2017-07-10
2017-07-14 626.59 未披露
更多>>
from April 30, 2016 to April 30, 2017 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
2017-04-30
2017-04-07 626.63 未披露 定期报告 2017-04-05
2017-03-07 631.40 未披露 定期报告 2017-02-28
2017-03-07 626.72 未披露
更多>>
From April 30, 2016 to January 31, 2017 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
2017-01-31
2016-12-09 632.10 未披露 定期报告 2016-11-30
2016-12-09 630.78 未披露
更多>>
From April 30, 2016 to October 31, 2016 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
2016-10-31
2016-10-07 313.00 未披露 定期报告 2016-10-07
2016-09-30 351.00 未披露 定期报告 2016-09-30
2016-09-12 316.19 未披露 定期报告 2016-08-31
2016-09-12 354.45 未披露
更多>>
From April 30, 2016 to July 31,2016 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
2016-07-31
2016-07-15 251.19 未披露 定期报告 2016-06-30
2016-07-15 234.52 未披露
更多>>
From April 30, 2015 to April 30, 2016 Issuance of restricted stock, net Sale of stock Legal Settlement Acquisition of treasury stock On October 27, 2015, the Company filed a Certificate of Amendment to our Certificate of Incorporation to effect a one-for-10 reverse stock split of our Common Stock and to decrease the number of authorized shares of our Common Stock to 50,000,000 shares (the “Reverse Stock Split”).The Common Stock began trading on a reverse stock split-adjusted basis on the NASDAQ Stock Market (“NASDAQ”) on October 29, 2015.
2016-04-30
2016-04-14 196.48 未披露 定期报告 2016-04-13
2016-03-11 193.68 未披露 定期报告 2016-02-29
2016-02-12 195.32 未披露 定期报告 2016-02-12
2016-03-11 191.85 未披露
更多>>
from April 30, 2015 to January 31, 2016 Reverse stock split Sale of Common Stock,net Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2016-01-31
2015-12-14 183.43 未披露 定期报告 2015-11-30
2015-12-14 183.23 未披露
更多>>
from April 30, 2015 to October 31, 2015 Reverse stock split Sale of Common Stock,net Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2015-10-31
2015-12-14 183.45 未披露
更多>>
On October 27, 2015, the Company filed a Certificate of Amendment to our Certificate of Incorporation to effect a one-for-10 reverse stock split of our Common Stock and to decrease the number of authorized shares of our Common Stock to 50,000,000 shares (the “Reverse Stock Split”).The Common Stock began trading on a reverse stock split-adjusted basis on the NASDAQ Stock Market (“NASDAQ”) on October 29, 2015.
2015-10-29
2015-09-03 1834.54 未披露 定期报告 2015-08-28
2015-09-08 1834.79 未披露
更多>>
from April 30, 2015 to July 31, 2015 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2015-07-31
2015-07-06 1834.91 未披露
更多>>
From April 30, 2014 to April 30, 2015 Issuance of restricted stock, net Acquisition of treasury stock
2015-04-30
2015-03-11 1835.46 未披露
更多>>
from April 30, 2014 to January 31, 2015 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2015-01-31
2014-12-10 1806.66 未披露 定期报告 2014-11-30
2014-12-10 1813.74 未披露
更多>>
from April 30, 2014 to October 31, 2014 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2014-10-31
2014-09-12 1758.43 未披露 定期报告 2014-08-31
2014-09-12 1754.56 未披露
更多>>
from April 30, 2014 to July 31, 2014 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2014-07-31
2014-07-29 1754.56 未披露 定期报告 2014-06-30
2014-07-29 1755.58 未披露
更多>>
From April 30, 2013 to April 30, 2014 Issuance of restricted stock, net Stock issued upon exercise of stock options Acquisition of treasury stock Sale of stock, net
2014-04-30
2014-03-14 1375.55 未披露 定期报告 2014-02-28
2014-03-14 1270.34 未披露
更多>>
From April 30, 2013 to January 31, 2014 Issuance of restricted stock, net Stock issued upon exercise of stock options Acquisition of treasury stock, net Sale of stock, net
2014-01-31
2013-12-13 1216.00 未披露 定期报告 2013-11-30
2013-12-13 1168.90 未披露
更多>>
From April 30, 2013 to October 31, 2013 Issuance of restricted stock, net Stock issued upon exercise of stock options Sale of stock, net Acquisition of treasury stock, net
2013-10-31
2013-09-13 1035.69 未披露
更多>>
from April 30, 2013 to July 31, 2013 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2013-07-31
2013-07-12 1035.51 未披露 定期报告 2013-06-30
2013-07-12 1036.94 未披露
更多>>
from April 30, 2012 to April 30, 2013 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2013-04-30
2013-03-15 1040.65 未披露 定期报告 2013-02-28
2013-02-08 1037.88 未披露 定期报告 2013-02-07
2013-03-15 1037.28 未披露
更多>>
from April 30, 2012 to January 31, 2013 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2013-01-31
2012-12-14 1039.47 未披露 定期报告 2012-11-30
2012-12-14 1038.77 未披露
更多>>
from April 30, 2012 to October 31, 2012 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2012-10-31
2012-08-27 1037.76 未披露 定期报告 2012-08-20
2012-07-13 1038.21 未披露 定期报告 2012-06-30
2012-07-13 1038.38 未披露
更多>>
from April 30, 2011 to April 30, 2012 Issuance (forfeiture) of restricted stock, net
2012-04-30
2012-03-12 1041.44 未披露 定期报告 2012-02-29
2012-03-12 1039.22 未披露
更多>>
From April 30, 2011 to January 31, 2012 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2012-01-31
2011-12-12 1041.44 未披露 定期报告 2011-11-30
2011-12-12 1039.78 未披露
更多>>
from April 30, 2011 to October 31, 2011 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2011-10-31
2011-09-09 1039.47 未披露 定期报告 2011-08-31
2011-09-09 1039.78 未披露
更多>>
Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
2011-07-31
2011-07-14 1040.27 未披露 定期报告 2011-06-30
2011-03-14 1041.15 未披露 定期报告 2011-02-28
2011-03-14 1041.25 未披露
更多>>
from Apr 30 2010 to Jan 31 2011 Issuance of vested and unvested restricted stock Acquisition of treasury stock
2011-01-31
2010-12-10 1041.81 未披露
更多>>
from Apr 30 2010 to Oct 31 2010 Issuance of vested and unvested restricted stock to employees, net Issuance of vested and unvested restricted stock to non-employees, net
2010-10-31
2010-09-09 1041.05 未披露
更多>>
from April 30, 2010 to July 31, 2010 Net issuance of vested and unvested restricted stock to employees
2010-07-31
2010-07-14 1038.95 未披露
更多>>
from April 30, 2009 to February 26, 2010 Issuance of vested and unvested restricted stock to employees Issuance of vested and unvested restricted stock to non-employees
2010-02-26
2010-03-12 1039.06 未披露
更多>>
from Apr 30 2009 to Jan 31 2010 Issuance of vested and unvested restricted stock to employees Issuance of vested and unvested restricted stock to non-employees
2010-01-31
From November 1, 2023 to January 31, 2024 Common stock issued upon vesting of restricted stock Shares withheld for tax withholdings
From August 1, 2023 to October 31, 2023 Common stock issued upon vesting of restricted stock Issuance of common stock - Cantor At The Market offering, net of issuance costs Acquisition of treasury stock
From May 1, 2023 to July 31, 2023 Common stock issued related to bonus and earn out payments Common stock issued upon vesting of restricted stock
From April 30, 2022 to April 30, 2023 Common stock issued upon vesting of restricted stock units Shares withheld for tax withholdings
From May 1, 2022 to January 31, 2023 Common stock issued upon vesting of restricted stock Acquisition of treasury stock
From May 1, 2021 to July 31, 2022 Common stock issued upon vesting of restricted stock
From April 30, 2021 to April 30, 2022 Proceeds from stock options exercises Issuance of shares in acquisition Acquisition of treasury stock
From May 1, 2021 to January 31, 2022 Proceeds from stock options exercises Issuance of shares for acquisition
From May 1, 2021 to October 31, 2021 Proceeds from stock options exercises
From April 30, 2020 To April 30, 2021 Proceeds from stock options exercises Exercise of common warrants, net of costs Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs Issuance of shares in acquisition
From November 1, 2020 to January 31, 2021 Proceeds from stock options exercises Exercise of common warrants, net of costs Issuance of common stock- Aspire financing, net of issuance costs Market offering, net of issuance costs Acquisition of treasury stock
From August 1, 2020 to October 31, 2020 Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs
From May 1, 2020 to July 31, 2020 Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs
From April 30, 2019 to April 30, 2020 Issuance (forfeiture) of restricted stock, net Exercise of prefunded warrants, net of issuance costs Common stock issued for commitment fee- Aspire Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs Acquisition of treasury stock
from October 31, 2019 to January 31, 2020 Issuance of restricted stock, net Exercise of prefunded warrants, net of issuance costs Sale of stock to Aspire ELOC, net of financing costs Sale of stock thru AGP ATM, net of financing costs
from July 31, 2019 to October 31, 2019 Issuance/(forfeiture) of restricted stock, net Acquisition of treasury stock Exercise of pre-funded warrants
from April 30, 2019 to July 31, 2019 Issuance/(forfeiture) of restricted stock, net Acquisition of treasury stock Exercise of pre-funded warrants
From April 30, 2018 to April 30, 2019 Issuance/(forfeiture) of restricted stock, net Common stock issued for commitment fee Issuance of common stock- Aspire financing, net of issuance costs Issuance of common stock- AGP At The Market offering, net of issuance costs Issuance of common stock, common and pre-funded warrants, net of issuance costs Exercise of pre-funded warrants
Reflects a one-for-twenty reverse stock split of our issued and outstanding shares of common stock, options and warrants effective March 12, 2019 and the corresponding adjustment of all common stock prices per share and stock option and warrant exercise prices per share and conversion ratios.
From April 30, 2018 to January 31, 2019 Issuance of restricted stock, net Sale of stock, net of financing costs Common stock issued for commitment fee Acquisition of treasury stock
From April 30, 2018 to October 31, 2018 Issuance of restricted stock, net Sale of stock, net of financing costs Common stock issued for commitment fee Acquisition of treasury stock
From April 30, 2018 to July 31, 2018 Issuance of restricted stock, net
From April 30, 2017 To January 31, 2018 Issuance of restricted stock, net Sale of stock, net of financing costs Acquisition of treasury stock
From April 30, 2017 To October 31, 2017 Issuance of restricted stock, net Sale of stock, net of financing costs Acquisition of treasury stock
From April 30, 2017 to July 31, 2017 Issuance of restricted stock, net Sale of stock, net of financing costs Acquisition of treasury stock
from April 30, 2016 to April 30, 2017 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
From April 30, 2016 to January 31, 2017 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
From April 30, 2016 to October 31, 2016 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
From April 30, 2016 to July 31,2016 Issuance of restricted stock, net Sale of stock Acquisition of treasury stock
From April 30, 2015 to April 30, 2016 Issuance of restricted stock, net Sale of stock Legal Settlement Acquisition of treasury stock On October 27, 2015, the Company filed a Certificate of Amendment to our Certificate of Incorporation to effect a one-for-10 reverse stock split of our Common Stock and to decrease the number of authorized shares of our Common Stock to 50,000,000 shares (the “Reverse Stock Split”).The Common Stock began trading on a reverse stock split-adjusted basis on the NASDAQ Stock Market (“NASDAQ”) on October 29, 2015.
from April 30, 2015 to January 31, 2016 Reverse stock split Sale of Common Stock,net Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2015 to October 31, 2015 Reverse stock split Sale of Common Stock,net Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
On October 27, 2015, the Company filed a Certificate of Amendment to our Certificate of Incorporation to effect a one-for-10 reverse stock split of our Common Stock and to decrease the number of authorized shares of our Common Stock to 50,000,000 shares (the “Reverse Stock Split”).The Common Stock began trading on a reverse stock split-adjusted basis on the NASDAQ Stock Market (“NASDAQ”) on October 29, 2015.
from April 30, 2015 to July 31, 2015 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
From April 30, 2014 to April 30, 2015 Issuance of restricted stock, net Acquisition of treasury stock
from April 30, 2014 to January 31, 2015 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2014 to October 31, 2014 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2014 to July 31, 2014 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
From April 30, 2013 to April 30, 2014 Issuance of restricted stock, net Stock issued upon exercise of stock options Acquisition of treasury stock Sale of stock, net
From April 30, 2013 to January 31, 2014 Issuance of restricted stock, net Stock issued upon exercise of stock options Acquisition of treasury stock, net Sale of stock, net
From April 30, 2013 to October 31, 2013 Issuance of restricted stock, net Stock issued upon exercise of stock options Sale of stock, net Acquisition of treasury stock, net
from April 30, 2013 to July 31, 2013 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2012 to April 30, 2013 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2012 to January 31, 2013 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2012 to October 31, 2012 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2011 to April 30, 2012 Issuance (forfeiture) of restricted stock, net
From April 30, 2011 to January 31, 2012 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from April 30, 2011 to October 31, 2011 Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
Issuance (forfeiture) of restricted stock, net Acquisition of treasury stock
from Apr 30 2010 to Jan 31 2011 Issuance of vested and unvested restricted stock Acquisition of treasury stock
from Apr 30 2010 to Oct 31 2010 Issuance of vested and unvested restricted stock to employees, net Issuance of vested and unvested restricted stock to non-employees, net
from April 30, 2010 to July 31, 2010 Net issuance of vested and unvested restricted stock to employees
from April 30, 2009 to February 26, 2010 Issuance of vested and unvested restricted stock to employees Issuance of vested and unvested restricted stock to non-employees
from Apr 30 2009 to Jan 31 2010 Issuance of vested and unvested restricted stock to employees Issuance of vested and unvested restricted stock to non-employees