股本结构
单位：万股
| 公告日期 | 2025-11-10 | 2025-11-10 | 2025-08-08 | 2025-08-08 | 2025-05-12 | 2025-05-12 |
|---|---|---|---|---|---|---|
| 证券总股本 | 10927.31 | 10877.61 | 10832.70 | 10782.14 | 10657.05 | 10537.70 |
| 普通股本 | 10927.31 | 10877.61 | 10832.70 | 10782.14 | 10657.05 | 10537.70 |
| 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 | 2025-11-05 | 2025-09-30 | 2025-08-04 | 2025-06-30 | 2025-05-05 | 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 |
|---|---|---|---|---|
| 2025-11-10 | 10927.31 | 未披露 | 定期报告 | 2025-11-05 |
| 2025-11-10 | 10877.61 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Net share settlement of equity awards
|
2025-09-30 |
| 2025-08-08 | 10832.70 | 未披露 | 定期报告 | 2025-08-04 |
| 2025-08-08 | 10782.14 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Issuance of common stock upon issuance of ESPP
Net share settlement of equity awards
|
2025-06-30 |
| 2025-05-12 | 10657.05 | 未披露 | 定期报告 | 2025-05-05 |
| 2025-05-12 | 10537.70 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Net share settlement of equity awards
|
2025-03-31 |
| 2025-02-24 | 10510.91 | 未披露 | 定期报告 | 2025-01-31 |
| 2025-02-24 | 10488.00 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Repurchases of common stock
Issuance of common stock upon exercise of ESPP
Net share settlement of equity awards
|
2024-12-31 |
| 2024-11-12 | 10430.73 | 未披露 | 定期报告 | 2024-11-05 |
| 2024-11-12 | 10396.74 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Net share settlement of equity awards
|
2024-09-30 |
| 2024-08-05 | 10366.99 | 未披露 | 定期报告 | 2024-07-29 |
| 2024-08-05 | 10336.06 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Issuance of common stock upon issuance of ESPP
Net share settlement of equity awards
|
2024-06-30 |
| 2024-04-29 | 10221.74 | 未披露 | 定期报告 | 2024-04-22 |
| 2024-04-29 | 10156.99 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Net share settlement of equity awards
Repurchases of common stock
|
2024-03-31 |
| 2024-02-20 | 10294.90 | 未披露 | 定期报告 | 2024-01-31 |
| 2024-02-20 | 10282.37 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Repurchases of common stock
|
2023-12-31 |
| 2023-10-30 | 11581.49 | 未披露 | 定期报告 | 2023-10-23 |
| 2023-10-30 | 11567.18 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Issuance of common stock upon exercise of stock options
Net share settlement of equity awards
|
2023-09-30 |
| 2023-08-07 | 11532.13 | 未披露 | 定期报告 | 2023-07-31 |
| 2023-08-07 | 11517.76 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Repurchases of common stock
|
2023-06-30 |
| 2023-05-01 | 11971.63 | 未披露 | 定期报告 | 2023-04-24 |
| 2023-05-01 | 11962.83 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Repurchases of common stock
Issuance of common stock upon exercise of stock options
Net share settlement of equity awards
|
2023-03-31 |
| 2023-02-21 | 12655.19 | 未披露 | 定期报告 | 2023-01-31 |
| 2023-02-21 | 12647.38 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Repurchases of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
|
2022-12-31 |
| 2022-11-01 | 12547.73 | 未披露 | 定期报告 | 2022-10-25 |
| 2022-11-01 | 12542.39 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Repurchases of common stock
Net share settlement of equity awards
|
2022-09-30 |
| 2022-08-04 | 12639.87 | 未披露 | 定期报告 | 2022-07-28 |
| 2022-08-04 | 12634.39 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Repurchases of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
|
2022-06-30 |
| 2022-05-02 | 12589.48 | 未披露 | 定期报告 | 2022-04-25 |
| 2022-04-14 | 12668.18 | 未披露 | 定期报告 | 2022-04-04 |
| 2022-05-02 | 12668.20 | 未披露 |
更多>>
from December 31, 2021 to March 31, 2022
Repurchases of common stock
Issuance of common stock upon exercise of stock options
Net share settlement of equity awards
|
2022-03-31 |
| 2022-02-22 | 13484.85 | 未披露 | 定期报告 | 2022-01-31 |
| 2022-02-22 | 13695.20 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Issuance of common stock in connection with equity offering, net of offering costs
Issuance of common stock upon conversion of 2023 notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Repurchase of common stock
|
2021-12-31 |
| 2021-11-01 | 14494.74 | 未披露 | 定期报告 | 2021-10-25 |
| 2021-11-01 | 14490.14 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
|
2021-09-30 |
| 2021-08-09 | 14467.78 | 未披露 | 定期报告 | 2021-08-06 |
| 2021-08-09 | 14462.14 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Issuance of common stock upon conversions of 2023 notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
|
2021-06-30 |
| 2021-05-03 | 14193.51 | 未披露 | 定期报告 | 2021-04-30 |
| 2021-04-16 | 14184.67 | 未披露 | 定期报告 | 2021-04-05 |
| 2021-05-03 | 14131.71 | 未披露 |
更多>>
from December 31, 2020 to March 31, 2021
Issuance of common stock in connection with equity offering, net of offering costs
Issuance of common stock upon conversions of 2023 notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
|
2021-03-31 |
| 2021-02-22 | 13914.75 | 未披露 |
更多>>
1.Common stock offered by the company 9,804,000 shares.
2.The number of shares of common stock to be outstanding after this offering is based on 129,343,524 shares of common stock outstanding as of December 31, 2020.
|
2021-02-22 |
| 2021-02-22 | 12942.34 | 未披露 | 定期报告 | 2021-01-31 |
| 2021-02-22 | 12934.35 | 未披露 |
更多>>
From December 31,2019 to December 31,2020
Issuance of common stock upon conversion of 2023 convertible senior notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
|
2020-12-31 |
| 2020-10-26 | 12881.09 | 未披露 | 定期报告 | 2020-10-23 |
| 2020-10-26 | 12865.44 | 未披露 |
更多>>
From June 30,2020 to September 30,2020
Issuance of common stock upon conversion of 2023 convertible senior notes
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of equity awards
|
2020-09-30 |
| 2020-08-03 | 12431.42 | 未披露 | 定期报告 | 2020-07-31 |
| 2020-08-03 | 12412.27 | 未披露 |
更多>>
From March 31, 2020 to June 30,2020
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
|
2020-06-30 |
| 2020-05-04 | 12364.65 | 未披露 | 定期报告 | 2020-05-01 |
| 2020-04-17 | 12355.53 | 未披露 | 定期报告 | 2020-04-06 |
| 2020-05-04 | 12354.28 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
|
2020-03-31 |
| 2020-02-20 | 12189.00 | 未披露 | 定期报告 | 2020-01-31 |
| 2020-02-20 | 12158.35 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Repurchase of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Issuance of common stock in connection with prior acquisition
|
2019-12-31 |
| 2019-11-04 | 12098.18 | 未披露 | 定期报告 | 2019-11-01 |
| 2019-11-04 | 12066.88 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Issuance of common stock in connection with prior acquisition
|
2019-09-30 |
| 2019-07-29 | 11965.14 | 未披露 | 定期报告 | 2019-07-26 |
| 2019-07-29 | 11933.60 | 未披露 |
更多>>
from March 31, 2019 to June 30,2019
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
|
2019-06-30 |
| 2019-04-29 | 11854.80 | 未披露 | 定期报告 | 2019-04-26 |
| 2019-04-26 | 11828.57 | 未披露 | 定期报告 | 2019-04-08 |
| 2019-04-29 | 11819.67 | 未披露 |
更多>>
from December 31, 2018 to March 31, 2019
Repurchase of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Issuance of common stock in connection with acquisition
|
2019-03-31 |
| 2019-02-25 | 11587.16 | 未披露 | 定期报告 | 2019-01-31 |
| 2019-02-25 | 11550.04 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Repurchase of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Warrant exercises
|
2018-12-31 |
| 2018-10-29 | 11489.76 | 未披露 | 定期报告 | 2018-10-26 |
| 2018-10-29 | 11459.80 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-07-30 | 11396.03 | 未披露 | 定期报告 | 2018-07-27 |
| 2018-07-30 | 11355.10 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-04-26 | 11214.88 | 未披露 | 定期报告 | 2018-04-25 |
| 2018-04-26 | 11186.75 | 未披露 | 定期报告 | 2018-04-10 |
| 2018-04-26 | 11274.87 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-02-26 | 10996.28 | 未披露 | 定期报告 | 2018-01-31 |
| 2018-02-26 | 10966.76 | 未披露 |
更多>>
From December 31, 2016 to December 31, 2017
Issuance of common stock in connection with follow-on offering, net of offering costs
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Warrant exercises
|
2017-12-31 |
| 2017-10-30 | 10844.17 | 未披露 | 定期报告 | 2017-10-27 |
| 2017-10-30 | 10816.32 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-07-31 | 9600.91 | 未披露 | 定期报告 | 2017-07-27 |
| 2017-07-25 | 9568.49 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-01 | 9445.12 | 未披露 | 定期报告 | 2017-04-28 |
| 2017-04-21 | 9436.89 | 未披露 | 定期报告 | 2017-04-04 |
| 2017-05-01 | 9424.50 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-02-23 | 9183.07 | 未披露 | 定期报告 | 2017-01-31 |
| 2017-02-23 | 9170.88 | 未披露 |
更多>>
From December 31, 2015 to December 31, 2016
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
|
2016-12-31 |
| 2016-11-07 | 9134.76 | 未披露 | 定期报告 | 2016-10-31 |
| 2016-11-07 | 9111.32 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-03 | 9102.83 | 未披露 | 定期报告 | 2016-07-29 |
| 2016-08-01 | 9089.32 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-03 | 9012.47 | 未披露 | 定期报告 | 2016-04-29 |
| 2016-04-22 | 9009.99 | 未披露 | 定期报告 | 2016-04-04 |
| 2016-05-03 | 8996.29 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-04 | 8995.69 | 未披露 | 定期报告 | 2016-02-29 |
| 2016-03-04 | 8810.00 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of restricted stock units (RSUs)
Warrant exercises
Issuance of common stock in connection with acquisition
Repurchase of common stock
|
2015-12-31 |
| 2015-12-21 | 8808.53 | 未披露 | 定期报告 | 2015-11-30 |
| 2015-11-05 | 8788.39 | 未披露 | 定期报告 | 2015-10-31 |
| 2015-11-02 | 8776.29 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-06 | 8765.58 | 未披露 | 定期报告 | 2015-07-31 |
| 2015-08-03 | 8756.01 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-08 | 8604.97 | 未披露 | 定期报告 | 2015-04-30 |
| 2015-04-24 | 8591.25 | 未披露 | 定期报告 | 2015-04-10 |
| 2015-05-06 | 8584.93 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-06 | 8450.12 | 未披露 | 定期报告 | 2015-02-27 |
| 2015-03-06 | 8400.80 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Issuance of common stock upon exercise of common stock warrants
Issuance of common stock in connection with acquisition
Repurchase of common stock
|
2014-12-31 |
| 2014-11-07 | 8384.95 | 未披露 | 定期报告 | 2014-10-31 |
| 2014-11-03 | 8373.88 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-08 | 8368.75 | 未披露 | 定期报告 | 2014-07-31 |
| 2014-08-04 | 8364.49 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-05-12 | 8306.49 | 未披露 | 定期报告 | 2014-04-30 |
| 2014-05-01 | 8268.61 | 未披露 | 定期报告 | 2014-03-31 |
| 2014-03-06 | 8193.99 | 未披露 | 定期报告 | 2014-02-28 |
| 2014-03-06 | 8170.82 | 未披露 |
更多>>
from December 31, 2012 to December 31, 2013
Issuance of preferred stock and common stock upon exercise of stock warrants
Conversion of preferred stock to common stock
Issuance of common stock for settlement of restricted stock units (RSUs)
Shares withheld related to net share settlement of RSUs
Issuance of common stock, net
Issuance of common stock upon exercise of common stock warrants
In August 2013, our board of directors and stockholders approved an amendment to our certificate of incorporation to effect a two-for-three reverse split of our common stock. The record date of the reverse stock split was September 3, 2013, the date the amendment to our certificate of incorporation was filed with the Delaware Secretary of State.
|
2013-12-31 |
| 2013-11-13 | 8172.83 | 未披露 |
更多>>
a 2-for-3 reverse split of our common stock, which became effective on September 3, 2013;
the automatic conversion of all outstanding shares of our convertible preferred stock into 53,911,337 shares of common stock upon the completion of this offering after giving effect to the conversion price adjustments more fully described in “Capitalization—Special Conversion Adjustments for the Series D, Series E and Series F Convertible Preferred Stock;”
the conversion of all outstanding convertible preferred stock warrants into warrants to purchase 1,118,282 shares of our common stock immediately upon the completion of this offering;
|
2013-11-13 |
| 2013-10-25 | 1309.24 | 6281.84 |
更多>>
from December 31, 2012 to September 30, 2013
Issuance of common stock upon exercise of stock options
|
2013-09-30 |
| 2013-10-01 | 1301.75 | 6281.47 |
更多>>
In August 2013, the board of directors and stockholders approved an amendment to our certificate of incorporation to effect a two-for-three reverse stock split of our common stock that became effective on September 3, 2013
|
2013-09-04 |
| 2013-08-14 | 1952.66 | 6281.47 |
更多>>
from December 31, 2012 to June 30, 2013
Issuance of common stock upon exercise of stock options (unaudited)
|
2013-06-30 |
From June 30, 2025 to September 30, 2025
Net share settlement of equity awards
From March 31, 2025 to June 30, 2025
Issuance of common stock upon issuance of ESPP
Net share settlement of equity awards
From December 31, 2024 to March 31, 2025
Net share settlement of equity awards
From December 31, 2023 to December 31, 2024
Repurchases of common stock
Issuance of common stock upon exercise of ESPP
Net share settlement of equity awards
From June 30, 2024 to September 30, 2024
Net share settlement of equity awards
From March 31, 2024 to June 30, 2024
Issuance of common stock upon issuance of ESPP
Net share settlement of equity awards
From December 31, 2023 to March 31, 2024
Net share settlement of equity awards
Repurchases of common stock
From December 31, 2022 to December 31, 2023
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Repurchases of common stock
From June 30, 2023 to September 30, 2023
Issuance of common stock upon exercise of stock options
Net share settlement of equity awards
From March 31, 2023 to June 30, 2023
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Repurchases of common stock
From December 31, 2022 to March 31, 2023
Repurchases of common stock
Issuance of common stock upon exercise of stock options
Net share settlement of equity awards
From December 31, 2021 to December 31, 2022
Repurchases of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
From June 30, 2022 to September 30, 2022
Repurchases of common stock
Net share settlement of equity awards
From March 31, 2022 to June 30, 2022
Repurchases of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
from December 31, 2021 to March 31, 2022
Repurchases of common stock
Issuance of common stock upon exercise of stock options
Net share settlement of equity awards
From December 31, 2020 to December 31, 2021
Issuance of common stock in connection with equity offering, net of offering costs
Issuance of common stock upon conversion of 2023 notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Repurchase of common stock
From June 30, 2021 to September 30, 2021
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
From March 31, 2021 to June 30, 2021
Issuance of common stock upon conversions of 2023 notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
from December 31, 2020 to March 31, 2021
Issuance of common stock in connection with equity offering, net of offering costs
Issuance of common stock upon conversions of 2023 notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
1.Common stock offered by the company 9,804,000 shares.
2.The number of shares of common stock to be outstanding after this offering is based on 129,343,524 shares of common stock outstanding as of December 31, 2020.
From December 31,2019 to December 31,2020
Issuance of common stock upon conversion of 2023 convertible senior notes
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
From June 30,2020 to September 30,2020
Issuance of common stock upon conversion of 2023 convertible senior notes
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of equity awards
From March 31, 2020 to June 30,2020
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
From December 31, 2019 to March 31, 2020
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
from December 31, 2018 to December 31, 2019
Repurchase of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net share settlement of equity awards
Issuance of common stock in connection with prior acquisition
from June 30, 2019 to September 30, 2019
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Issuance of common stock in connection with prior acquisition
from March 31, 2019 to June 30,2019
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
from December 31, 2018 to March 31, 2019
Repurchase of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Issuance of common stock in connection with acquisition
from December 31, 2017 to December 31, 2018
Repurchase of common stock
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Warrant exercises
From December 31, 2016 to December 31, 2017
Issuance of common stock in connection with follow-on offering, net of offering costs
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Warrant exercises
From December 31, 2015 to December 31, 2016
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
from December 31, 2014 to December 31, 2015
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of restricted stock units (RSUs)
Warrant exercises
Issuance of common stock in connection with acquisition
Repurchase of common stock
from December 31, 2013 to December 31, 2014
Issuance of common stock upon exercise of stock options and ESPP
Net issuance of common stock for settlement of RSUs
Issuance of common stock upon exercise of common stock warrants
Issuance of common stock in connection with acquisition
Repurchase of common stock
from December 31, 2012 to December 31, 2013
Issuance of preferred stock and common stock upon exercise of stock warrants
Conversion of preferred stock to common stock
Issuance of common stock for settlement of restricted stock units (RSUs)
Shares withheld related to net share settlement of RSUs
Issuance of common stock, net
Issuance of common stock upon exercise of common stock warrants
In August 2013, our board of directors and stockholders approved an amendment to our certificate of incorporation to effect a two-for-three reverse split of our common stock. The record date of the reverse stock split was September 3, 2013, the date the amendment to our certificate of incorporation was filed with the Delaware Secretary of State.
a 2-for-3 reverse split of our common stock, which became effective on September 3, 2013;
the automatic conversion of all outstanding shares of our convertible preferred stock into 53,911,337 shares of common stock upon the completion of this offering after giving effect to the conversion price adjustments more fully described in “Capitalization—Special Conversion Adjustments for the Series D, Series E and Series F Convertible Preferred Stock;”
the conversion of all outstanding convertible preferred stock warrants into warrants to purchase 1,118,282 shares of our common stock immediately upon the completion of this offering;
from December 31, 2012 to September 30, 2013
Issuance of common stock upon exercise of stock options
In August 2013, the board of directors and stockholders approved an amendment to our certificate of incorporation to effect a two-for-three reverse stock split of our common stock that became effective on September 3, 2013
from December 31, 2012 to June 30, 2013
Issuance of common stock upon exercise of stock options (unaudited)