股本结构

单位:万股
公告日期 2025-10-29 2025-10-29 2025-07-30 2025-07-31 2025-04-18 2025-04-24
证券总股本 24199.99 24200.00 24161.67 24161.51 24250.41 24250.40
普通股本 24199.99 24200.00 24161.67 24161.51 24250.41 24250.40
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 2025-10-16 2025-09-30 2025-07-24 2025-06-30 2025-04-07 2025-03-31
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
2025-10-29 24199.99 未披露 定期报告 2025-10-16
2025-10-29 24200.00 未披露
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From June 30, 2025 to September 30, 2025 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
2025-09-30
2025-07-30 24161.67 未披露 定期报告 2025-07-24
2025-07-31 24161.51 未披露
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From March 31, 2025 to June 30, 2025 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan Repurchases of common stock
2025-06-30
2025-04-18 24250.41 未披露 定期报告 2025-04-07
2025-04-24 24250.40 未披露
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From December 31, 2024 to March 31, 2025 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
2025-03-31
2025-02-19 24245.23 未披露 定期报告 2025-02-14
2025-02-19 24218.21 未披露
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From December 31, 2023 to December 31, 2024 Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of stock-based compensation
2024-12-31
2024-10-29 24216.26 未披露
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From June 30, 2024 to September 30, 2024 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
2024-09-30
2024-07-30 24214.24 未披露
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From March 31, 2024 to June 30, 2024 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
2024-06-30
2024-04-30 24206.38 未披露
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From December 31, 2023 to March 31, 2024 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
2024-03-31
2024-02-21 24199.34 未披露 定期报告 2024-02-16
2024-02-21 24153.43 未披露
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From December 31, 2022 to December 31, 2023 Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of stock-based compensation
2023-12-31
2023-10-26 24151.63 未披露 定期报告 2023-10-19
2023-10-26 24160.00 未披露
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From June 30, 2023 to September 30, 2023 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
2023-09-30
2023-07-27 24149.07 未披露 定期报告 2023-07-20
2023-07-27 24148.91 未披露
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From March 31, 2023 to June 30, 2023 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
2023-06-30
2023-04-21 24141.96 未披露 定期报告 2023-04-10
2023-04-27 24140.00 未披露
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From December 31, 2022 to March 31, 2023 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
2023-03-31
2023-02-22 24135.94 未披露 定期报告 2023-02-17
2023-02-22 24080.00 未披露
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From December 31, 2021 to December 31, 2022 Repurchases of common stock Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of stock-based compensation
2022-12-31
2022-10-27 24208.56 未披露 定期报告 2022-10-20
2022-10-27 24280.00 未披露
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From June 30, 2022 to September 30, 2022 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan Repurchases of common stock
2022-09-30
2022-07-27 24533.14 未披露 定期报告 2022-07-21
2022-07-28 24580.00 未披露
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From March 31, 2022 to June 30, 2022 Repurchases of common stock Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
2022-06-30
2022-04-28 24771.42 未披露 定期报告 2022-04-21
2022-04-22 24783.38 未披露 定期报告 2022-04-11
2022-04-28 24780.00 未披露
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From December 31, 2021 to March 31, 2022 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan Repurchases of common stock
2022-03-31
2022-02-23 24816.35 未披露 定期报告 2022-02-17
2022-02-23 24670.00 未披露
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From December 31, 2020 to December 31, 2021 Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of share based compensation Repurchases of common stock
2021-12-31
2021-10-28 24750.34 未披露 定期报告 2021-10-21
2021-10-28 24750.00 未披露
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From June 30, 2021 to September 30, 2021 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
2021-09-30
2021-07-29 24756.79 未披露 定期报告 2021-07-22
2021-07-29 24760.00 未披露
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From March 31, 2021 to June 30, 2021 Exercise/ vesting of share based compensation Issuance of common stock under ESPP
2021-06-30
2021-04-28 24745.65 未披露 定期报告 2021-04-12
2021-04-29 24750.00 未披露
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From December 31, 2020 to March 31, 2021 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
2021-03-31
2021-02-25 24710.08 未披露 定期报告 2021-02-18
2021-02-25 24710.00 未披露
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From December 31, 2019 to December 31, 2020 Preferred stock conversion Issuance of common stock under ESPP Exercise/ vesting of share based compensation Repurchases of common stock
2020-12-31
2020-10-28 24721.32 未披露 定期报告 2020-10-21
2020-10-28 24870.00 未披露
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From June 30, 2020 to September 30, 2020 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
2020-09-30
2020-08-04 24892.12 未披露 定期报告 2020-07-28
2020-08-04 24880.00 未披露
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From March 31, 2020 to June 30, 2020 Exercise/ vesting of share based compensation Issuance of common stock under ESPP
2020-06-30
2020-04-29 24875.27 未披露 定期报告 2020-04-20
2020-04-30 24870.00 未披露
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From December 31, 2019 to March 31, 2020 Preferred stock conversion Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
2020-03-31
2020-04-30 25244.10 未披露 定期报告 2020-02-25
2020-02-28 25015.11 200.00
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From December 31, 2018 to December 31, 2019 Conversion of shares of common stock of PDH into common stock Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
2019-12-31
2019-11-07 25109.94 未披露 定期报告 2019-11-01
2019-11-07 25109.93 200.00
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from June 30, 2019 to September 30, 2019 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
2019-09-30
2019-08-02 25666.45 200.00 定期报告 2019-07-26
2019-08-02 25660.00 未披露
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from December 31, 2018 to June 30, 2019 Exercise/vesting of share based compensation Conversion of shares of common stock of PDH into common stock Issuance of common stock under ESPP Repurchases of common stock
2019-06-30
2019-05-01 25755.36 未披露 定期报告 2019-04-26
2019-04-25 25353.61 未披露 定期报告 2019-04-10
2019-05-01 25744.21 200.00
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from December 31, 2018 to March 31, 2019 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP Share repurchase
2019-03-31
2019-02-28 25239.56 未披露 定期报告 2019-02-22
2019-02-28 28897.42 200.00
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From January 1, 2018 to December 31, 2018 Conversion of PDH Common Stock into common stock Exercise/ vesting of share based compensation Issuance of common stock under ESPP
2018-12-31
2018-11-01 28832.98 未披露 定期报告 2018-10-26
2018-11-01 28830.00 未披露
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From January 1, 2018 to September 30, 2018 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2018-09-30
2018-08-02 28823.08 未披露 定期报告 2018-07-27
2018-08-02 28820.00 未披露
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From January 1, 2018 to June 30, 2018 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2018-06-30
2018-05-03 28812.60 未披露 定期报告 2018-04-27
2018-05-03 28810.00 未披露
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from January 1, 2018 to March 31, 2018 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2018-03-31
2018-02-28 28802.89 未披露 定期报告 2018-02-23
2018-02-28 28740.59 未披露
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from December 31, 2016 to December 31, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2017-12-31
2017-11-02 28709.72 未披露 定期报告 2017-10-27
2017-11-02 28709.43 未披露
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From December 31, 2016 To September 30, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2017-09-30
2017-08-09 28672.28 未披露 定期报告 2017-08-04
2017-08-09 28630.00 200.00
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from December 31, 2016 to June 30, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2017-06-30
2017-05-09 28617.70 未披露 定期报告 2017-05-05
2017-04-14 28568.07 未披露 定期报告 2017-04-10
2017-05-09 28566.44 200.00
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from December 31, 2016 to March 31, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2017-03-31
2017-03-13 28424.72 未披露 定期报告 2017-02-24
2017-03-13 28422.12 200.00
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from December 31, 2015 to December 31, 2016 Issuance of common stock to former non-founder director for exercise of stock options Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP Issuance of common stock at $8.25 per share in the September 2016 Equity Offering Series B Convertible Preferred Stock settlement
2016-12-31
2016-11-07 27847.05 未披露 定期报告 2016-11-01
2016-11-07 27842.08 200.00
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from June 30, 2016 to September 30, 2016 Issuance of common stock at $8.25 per share in the September 2016 Equity Offering Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2016-09-30
2016-07-12 22959.72 260.00 定期报告 2016-07-08
2016-08-09 22959.72 200.00
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from March 31, 2016 to June 30, 2016 Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2016-06-30
2016-05-10 22955.79 未披露 定期报告 2016-05-06
2016-04-15 22954.69 未披露 定期报告 2016-04-12
2016-04-15 22952.83 未披露 定期报告 2016-04-06
2016-05-10 22952.37 260.00
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from December 31, 2015 to March 31, 2016 Issuance of common stock to former non-founder director for exercise of stock options Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2016-03-31
2016-03-11 22951.34 未披露 定期报告 2016-03-04
2016-03-11 22946.42 260.00
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from December 31, 2014 to December 31, 2015 Issuance of common stock to Founder Entities as stock dividend to Series A Preferred Stock declared on December 31, 2014 Issuance of common stock to former non-founder director for exercise of stock options Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP Issuance of common stock at $26.50 per share in June 2015 Equity Offering Issuance of common shares to non-employee Issuance of common shares at $12.56 per share in connection with Alent acquisition on December 1, 2015
2015-12-31
2015-11-16 21087.96 260.00
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from June 30, 2015 to September 30, 2015 Issuance of common shares to non-employee Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2015-09-30
2015-08-14 21086.49 未披露 定期报告 2015-08-12
2015-07-13 21086.11 260.00 定期报告 2015-07-10
2015-08-14 21086.10 260.00
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From March 31, 2015 to June 30, 2015 Issuance of common stock at $26.50 per share in June 2015 Equity Offering Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
2015-06-30
2015-05-15 19262.17 未披露 定期报告 2015-05-08
2015-04-10 19222.17 未披露 定期报告 2015-04-09
2015-05-15 19222.16 200.00
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From December 31, 2014 to March 31, 2015 Issuance of common shares to Founders from stock dividend declared on December 31, 2014 Issuance of common shares to former non-founder director for exercise of stock options Conversion of PDH non-controlling interest to common shares Issuance of common shares from Employee Stock Purchase Plan
2015-03-31
2015-03-30 19222.05 未披露 定期报告 2015-03-23
2015-03-20 19214.55 200.00 定期报告 2015-03-17
2015-02-12 19212.94 200.00 定期报告 2015-02-12
2015-02-02 19211.94 200.00 定期报告 2015-02-02
2015-03-30 18206.70 200.00
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From December 31, 2013 to December 31, 2014 Issuance of common shares @ $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares @ $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering on May 20, 2014 Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement Issuance of common shares at $25.59 per share in connection with Private Placement Offering on October 8, 2014 Issuance of common shares in connection with Agriphar Acquisition Issuance of common shares in connection with Chemtura Acquisition Issuance of common shares at $25.59 per share on November 6, 2014 Issuance of common shares at $24.50 per share in connection with Public Offering on November 17, 2014 Conversion of PDH non-controlling interest to common shares
2014-12-31
2014-11-10 16548.10 200.00 定期报告 2014-11-07
2014-11-03 15407.69 200.00 定期报告 2014-10-15
2014-11-14 13730.43 200.00
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from December 31, 2013 to September 30,2014 Issuance of common shares at $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares at $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement
2014-09-30
2014-08-06 13730.02 未披露 定期报告 2014-08-01
2014-08-06 13729.10 200.00
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from December 31, 2013 to June 30,2014 Issuance of common shares at $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares at $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement
2014-06-30
2014-05-23 13729.11 200.00 定期报告 2014-05-20
2014-05-07 12149.11 未披露 定期报告 2014-05-02
2014-04-25 12149.14 未披露 定期报告 2014-04-21
2014-05-07 12023.92 200.00
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from December 31, 2013 to March 31,2014 Issuance of common shares at $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares at $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement
2014-03-31
2014-03-31 11996.97 未披露 定期报告 2014-03-26
2014-01-17 10550.99 未披露 定期报告 2014-01-23
2014-03-31 10357.19 200.00
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from December 31, 2012 to December 31, 2013 Accrual of paid in kind dividend on cumulative preferred shares Shares repurchased Shares exchanged Shares canceled Issuance of 2 preferred shares @ $10.00 per share on April 25, 2013 Issuance of 1,999,998 preferred shares @ $10.00 per share with matching warrants on May 22, 2013 along with 2 matching warrants matching with previously issued preferred shares Issuance of 88,529,500 common shares @ $10.00 per share with matching warrants on May 22, 2013 Exercise of warrants for 13,071,199 common shares @ $10.50 per share on October 30, 2013 Exercise of warrants for 391,081 common shares @ $10.50 on November 13, 2013 Issuance of 761,904 common shares @ $10.50 per share on November 13, 2013 Exchange of warrants for 466,666 common shares @ $11.50 per share on November 20, 2013 Issuance of 349,691 common shares @ $11.00 per share on December 23, 2013 Issuance of 1,900 common shares @ $11.00 per share on December 23, 2013 to an unrelated third party for services
2013-12-31
From June 30, 2025 to September 30, 2025 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
From March 31, 2025 to June 30, 2025 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan Repurchases of common stock
From December 31, 2024 to March 31, 2025 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2023 to December 31, 2024 Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of stock-based compensation
From June 30, 2024 to September 30, 2024 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
From March 31, 2024 to June 30, 2024 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2023 to March 31, 2024 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2022 to December 31, 2023 Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of stock-based compensation
From June 30, 2023 to September 30, 2023 Exercise/ vesting of stock-based compensation Issuance of common stock under Employee Stock Purchase Plan
From March 31, 2023 to June 30, 2023 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2022 to March 31, 2023 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2021 to December 31, 2022 Repurchases of common stock Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of stock-based compensation
From June 30, 2022 to September 30, 2022 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan Repurchases of common stock
From March 31, 2022 to June 30, 2022 Repurchases of common stock Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan
From December 31, 2021 to March 31, 2022 Exercise/ vesting of share based compensation Issuance of common stock under Employee Stock Purchase Plan Repurchases of common stock
From December 31, 2020 to December 31, 2021 Issuance of common stock under Employee Stock Purchase Plan Exercise/ vesting of share based compensation Repurchases of common stock
From June 30, 2021 to September 30, 2021 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
From March 31, 2021 to June 30, 2021 Exercise/ vesting of share based compensation Issuance of common stock under ESPP
From December 31, 2020 to March 31, 2021 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
From December 31, 2019 to December 31, 2020 Preferred stock conversion Issuance of common stock under ESPP Exercise/ vesting of share based compensation Repurchases of common stock
From June 30, 2020 to September 30, 2020 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
From March 31, 2020 to June 30, 2020 Exercise/ vesting of share based compensation Issuance of common stock under ESPP
From December 31, 2019 to March 31, 2020 Preferred stock conversion Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
From December 31, 2018 to December 31, 2019 Conversion of shares of common stock of PDH into common stock Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
from June 30, 2019 to September 30, 2019 Exercise/ vesting of share based compensation Issuance of common stock under ESPP Repurchases of common stock
from December 31, 2018 to June 30, 2019 Exercise/vesting of share based compensation Conversion of shares of common stock of PDH into common stock Issuance of common stock under ESPP Repurchases of common stock
from December 31, 2018 to March 31, 2019 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP Share repurchase
From January 1, 2018 to December 31, 2018 Conversion of PDH Common Stock into common stock Exercise/ vesting of share based compensation Issuance of common stock under ESPP
From January 1, 2018 to September 30, 2018 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
From January 1, 2018 to June 30, 2018 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from January 1, 2018 to March 31, 2018 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from December 31, 2016 to December 31, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
From December 31, 2016 To September 30, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from December 31, 2016 to June 30, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from December 31, 2016 to March 31, 2017 Exercise/ vesting of share based compensation Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from December 31, 2015 to December 31, 2016 Issuance of common stock to former non-founder director for exercise of stock options Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP Issuance of common stock at $8.25 per share in the September 2016 Equity Offering Series B Convertible Preferred Stock settlement
from June 30, 2016 to September 30, 2016 Issuance of common stock at $8.25 per share in the September 2016 Equity Offering Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from March 31, 2016 to June 30, 2016 Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from December 31, 2015 to March 31, 2016 Issuance of common stock to former non-founder director for exercise of stock options Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
from December 31, 2014 to December 31, 2015 Issuance of common stock to Founder Entities as stock dividend to Series A Preferred Stock declared on December 31, 2014 Issuance of common stock to former non-founder director for exercise of stock options Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP Issuance of common stock at $26.50 per share in June 2015 Equity Offering Issuance of common shares to non-employee Issuance of common shares at $12.56 per share in connection with Alent acquisition on December 1, 2015
from June 30, 2015 to September 30, 2015 Issuance of common shares to non-employee Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
From March 31, 2015 to June 30, 2015 Issuance of common stock at $26.50 per share in June 2015 Equity Offering Conversion of PDH Common Stock into common stock Issuance of common stock under ESPP
From December 31, 2014 to March 31, 2015 Issuance of common shares to Founders from stock dividend declared on December 31, 2014 Issuance of common shares to former non-founder director for exercise of stock options Conversion of PDH non-controlling interest to common shares Issuance of common shares from Employee Stock Purchase Plan
From December 31, 2013 to December 31, 2014 Issuance of common shares @ $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares @ $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering on May 20, 2014 Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement Issuance of common shares at $25.59 per share in connection with Private Placement Offering on October 8, 2014 Issuance of common shares in connection with Agriphar Acquisition Issuance of common shares in connection with Chemtura Acquisition Issuance of common shares at $25.59 per share on November 6, 2014 Issuance of common shares at $24.50 per share in connection with Public Offering on November 17, 2014 Conversion of PDH non-controlling interest to common shares
from December 31, 2013 to September 30,2014 Issuance of common shares at $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares at $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement
from December 31, 2013 to June 30,2014 Issuance of common shares at $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares at $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement
from December 31, 2013 to March 31,2014 Issuance of common shares at $11.00 per share on January 5, 2014 Issuance of common shares to Directors on July 31, 2014 Issuance of common shares from Employee Stock Purchase Plan Exercise of warrants for common shares at $11.50 per share Issuance of common shares at $19.00 per share in connection with Private Placement Offering Issuance of common shares at $11.00 per share in connection with 401(k) Exchange Agreement
from December 31, 2012 to December 31, 2013 Accrual of paid in kind dividend on cumulative preferred shares Shares repurchased Shares exchanged Shares canceled Issuance of 2 preferred shares @ $10.00 per share on April 25, 2013 Issuance of 1,999,998 preferred shares @ $10.00 per share with matching warrants on May 22, 2013 along with 2 matching warrants matching with previously issued preferred shares Issuance of 88,529,500 common shares @ $10.00 per share with matching warrants on May 22, 2013 Exercise of warrants for 13,071,199 common shares @ $10.50 per share on October 30, 2013 Exercise of warrants for 391,081 common shares @ $10.50 on November 13, 2013 Issuance of 761,904 common shares @ $10.50 per share on November 13, 2013 Exchange of warrants for 466,666 common shares @ $11.50 per share on November 20, 2013 Issuance of 349,691 common shares @ $11.00 per share on December 23, 2013 Issuance of 1,900 common shares @ $11.00 per share on December 23, 2013 to an unrelated third party for services