股本结构
单位：万股
| 公告日期 | 2025-11-06 | 2025-11-06 | 2025-08-07 | 2025-08-07 | 2025-05-08 | 2025-05-08 |
|---|---|---|---|---|---|---|
| 证券总股本 | 4595.22 | 4634.89 | 4649.51 | 4649.06 | 4713.91 | 4767.02 |
| 普通股本 | 4595.22 | 4634.89 | 4649.51 | 4649.06 | 4713.91 | 4767.02 |
| 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 | 2025-10-31 | 2025-09-30 | 2025-08-01 | 2025-06-30 | 2025-05-01 | 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 |
|---|---|---|---|---|
| 2025-11-06 | 4595.22 | 未披露 | 定期报告 | 2025-10-31 |
| 2025-11-06 | 4634.89 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Issuance of common stock in connection with the Company's equity plans
|
2025-09-30 |
| 2025-08-07 | 4649.51 | 未披露 | 定期报告 | 2025-08-01 |
| 2025-08-07 | 4649.06 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2025-06-30 |
| 2025-05-08 | 4713.91 | 未披露 | 定期报告 | 2025-05-01 |
| 2025-04-14 | 4750.22 | 未披露 | 定期报告 | 2025-04-07 |
| 2025-05-08 | 4767.02 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Issuance of common stock in connection with the Company's equity plans
|
2025-03-31 |
| 2025-03-03 | 4765.01 | 未披露 | 定期报告 | 2025-02-25 |
| 2025-03-03 | 4761.77 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
|
2024-12-31 |
| 2024-11-07 | 4808.14 | 未披露 | 定期报告 | 2024-11-01 |
| 2024-11-06 | 4837.30 | 未披露 | 定期报告 | 2024-09-30 |
| 2024-08-09 | 4867.58 | 未披露 | 定期报告 | 2024-08-02 |
| 2024-08-09 | 4896.24 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
|
2024-06-30 |
| 2024-05-10 | 4890.20 | 未披露 | 定期报告 | 2024-05-03 |
| 2024-04-12 | 4886.59 | 未披露 | 定期报告 | 2024-04-05 |
| 2024-05-10 | 4884.13 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
|
2024-03-31 |
| 2024-02-29 | 4809.59 | 未披露 | 定期报告 | 2024-02-22 |
| 2024-02-29 | 4806.89 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Issuance of common stock in connection with the Company's equity plans
|
2023-12-31 |
| 2023-11-08 | 4790.74 | 未披露 | 定期报告 | 2023-11-02 |
| 2023-11-08 | 4789.85 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
|
2023-09-30 |
| 2023-08-09 | 4885.56 | 未披露 | 定期报告 | 2023-08-02 |
| 2023-08-09 | 4881.88 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
|
2023-06-30 |
| 2023-05-09 | 4827.40 | 未披露 | 定期报告 | 2023-05-03 |
| 2023-04-14 | 4819.32 | 未披露 | 定期报告 | 2023-04-10 |
| 2023-05-09 | 4817.92 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
|
2023-03-31 |
| 2023-03-01 | 4789.68 | 未披露 | 定期报告 | 2023-02-22 |
| 2023-03-01 | 4811.21 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
|
2022-12-31 |
| 2022-11-08 | 4833.12 | 未披露 | 定期报告 | 2022-11-01 |
| 2022-11-08 | 4861.25 | 未披露 |
更多>>
From June 30, 2022 to September 30, 2022
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
|
2022-09-30 |
| 2022-08-09 | 4901.52 | 未披露 | 定期报告 | 2022-08-02 |
| 2022-08-09 | 4899.23 | 未披露 |
更多>>
From March 31, 2022 to June 30, 2022
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2022-06-30 |
| 2022-05-10 | 4882.98 | 未披露 | 定期报告 | 2022-05-03 |
| 2022-04-14 | 4881.17 | 未披露 | 定期报告 | 2022-04-13 |
| 2022-05-10 | 4875.22 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2022-03-31 |
| 2022-03-11 | 4814.69 | 未披露 | 定期报告 | 2022-03-04 |
| 2022-03-11 | 4771.49 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
Issuance of common stock in connection with the Company's equity plans
|
2021-12-31 |
| 2021-11-09 | 4784.91 | 未披露 | 定期报告 | 2021-11-02 |
| 2021-11-09 | 4798.27 | 未披露 |
更多>>
From June 30, 2021 to September 30, 2021
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2021-09-30 |
| 2021-08-09 | 4803.17 | 未披露 | 定期报告 | 2021-08-02 |
| 2021-08-09 | 4798.35 | 未披露 |
更多>>
From March 31, 2021 to June 30, 2021
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2021-06-30 |
| 2021-05-07 | 4763.54 | 未披露 | 定期报告 | 2021-05-03 |
| 2021-04-14 | 4769.00 | 未披露 | 定期报告 | 2021-04-13 |
| 2021-05-07 | 4771.80 | 未披露 |
更多>>
From December 31, 2020 To March 31, 2021
Issuance of common stock in connection with the Company's equity plans
|
2021-03-31 |
| 2021-03-15 | 4743.29 | 未披露 | 定期报告 | 2021-03-08 |
| 2021-03-15 | 4749.54 | 未披露 |
更多>>
From December 31, 2019 to December 31, 2020
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
Issuance of common stock in connection with the Company's equity plans
|
2020-12-31 |
| 2020-11-06 | 4750.40 | 未披露 | 定期报告 | 2020-11-02 |
| 2020-11-06 | 4753.42 | 未披露 |
更多>>
From June 30, 2020 to September 30, 2020
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2020-09-30 |
| 2020-08-10 | 4748.55 | 未披露 | 定期报告 | 2020-08-03 |
| 2020-08-10 | 4749.49 | 未披露 |
更多>>
from March 31, 2020 to June 30, 2020
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2020-06-30 |
| 2020-05-11 | 4619.83 | 未披露 | 定期报告 | 2020-05-06 |
| 2020-04-15 | 4623.58 | 未披露 | 定期报告 | 2020-04-13 |
| 2020-05-11 | 4630.61 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Issuance of common stock in connection with the Company's equity plan
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2020-03-31 |
| 2020-03-16 | 4623.83 | 未披露 | 定期报告 | 2020-03-09 |
| 2020-03-16 | 4657.70 | 未披露 |
更多>>
from December 31, 2018 to December 31, 2019
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
Issuance of common stock in connection with the Company's equity plans
|
2019-12-31 |
| 2019-11-08 | 4693.80 | 未披露 | 定期报告 | 2019-11-01 |
| 2019-11-08 | 4719.99 | 未披露 |
更多>>
from June 30, 2019 to September 30, 2019
Net income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Other comprehensive income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Net loss attributable to non-controlling interests
Net proceeds from equity plans, net of withholding tax payments
Share-based compensation expense
Purchase of treasury stock
|
2019-09-30 |
| 2019-08-09 | 4722.65 | 未披露 | 定期报告 | 2019-08-02 |
| 2019-08-09 | 4721.77 | 未披露 |
更多>>
from December 31, 2018 to June 30,2019
Beginning balance adjustment as a result of the adoption of new accounting standards
Net income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Other comprehensive income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Net proceeds from the private placement of ANP
Net loss attributable to non-controlling interests
Net proceeds from equity plans, net of withholding tax payments
Share-based compensation expense
Purchase of treasury stock
|
2019-06-30 |
| 2019-05-10 | 4706.54 | 未披露 | 定期报告 | 2019-05-03 |
| 2019-04-18 | 4706.47 | 未披露 | 定期报告 | 2019-04-17 |
| 2019-05-10 | 4709.86 | 未披露 | 定期报告 | 2019-03-31 |
| 2019-03-15 | 4678.88 | 未披露 | 定期报告 | 2019-03-08 |
| 2019-03-15 | 4663.11 | 未披露 |
更多>>
from December 31, 2017 to December 31, 2018
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2018-12-31 |
| 2018-11-09 | 4609.85 | 未披露 | 定期报告 | 2018-11-02 |
| 2018-11-09 | 4615.97 | 未披露 | 定期报告 | 2018-09-30 |
| 2018-08-09 | 4625.65 | 未披露 | 定期报告 | 2018-08-02 |
| 2018-08-09 | 4641.68 | 未披露 | 定期报告 | 2018-06-30 |
| 2018-05-10 | 4661.41 | 未披露 | 定期报告 | 2018-05-03 |
| 2018-04-18 | 4660.29 | 未披露 | 定期报告 | 2018-04-16 |
| 2018-05-10 | 5047.17 | 未披露 | 定期报告 | 2018-03-31 |
| 2018-03-14 | 4635.06 | 未披露 | 定期报告 | 2018-03-06 |
| 2018-03-14 | 4662.36 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
|
2017-12-31 |
| 2017-11-09 | 4597.57 | 未披露 | 定期报告 | 2017-11-02 |
| 2017-11-09 | 4589.64 | 未披露 | 定期报告 | 2017-09-30 |
| 2017-08-09 | 4619.59 | 未披露 | 定期报告 | 2017-08-02 |
| 2017-08-09 | 4624.89 | 未披露 | 定期报告 | 2017-06-30 |
| 2017-05-10 | 4573.79 | 未披露 | 定期报告 | 2017-05-03 |
| 2017-04-21 | 4586.46 | 未披露 | 定期报告 | 2017-04-17 |
| 2017-05-10 | 4595.82 | 未披露 | 定期报告 | 2017-03-31 |
| 2017-03-15 | 4591.01 | 未披露 | 定期报告 | 2017-03-08 |
| 2017-03-15 | 4624.86 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Issuance of common stock in connection with the Company's equity plans
Treasury stock acquired
Issuance of treasury stock in connection with the Company's equity plans
|
2016-12-31 |
| 2016-11-09 | 4602.38 | 未披露 | 定期报告 | 2016-11-02 |
| 2016-11-09 | 4603.80 | 未披露 | 定期报告 | 2016-09-30 |
| 2016-08-09 | 4512.12 | 未披露 | 定期报告 | 2016-08-02 |
| 2016-08-09 | 4651.59 | 未披露 | 定期报告 | 2016-06-30 |
| 2016-05-10 | 4484.57 | 未披露 | 定期报告 | 2016-05-03 |
| 2016-04-22 | 4489.76 | 未披露 | 定期报告 | 2016-04-11 |
| 2016-05-10 | 4610.08 | 未披露 | 定期报告 | 2016-03-31 |
| 2016-03-15 | 4491.39 | 未披露 | 定期报告 | 2016-03-08 |
| 2016-03-15 | 4519.85 | 未披露 |
更多>>
from December 31, 2014 to December 31, 2015
Treasury stock acquired
Issuance of common stock from treasury
Exercise of stock options
Issuance of common stock to employees in connection with the release of vested restricted stock units, net of common stock withheld to settle equity awards
Issuance of common stock to nonemployees in connection with the release of vested restricted stock units
Issuance of common stock to employees under ESPP
|
2015-12-31 |
| 2015-11-13 | 4501.95 | 未披露 | 定期报告 | 2015-11-09 |
| 2015-11-13 | 4520.65 | 未披露 | 定期报告 | 2015-09-30 |
| 2015-08-13 | 4533.74 | 未披露 | 定期报告 | 2015-08-10 |
| 2015-08-13 | 4532.95 | 未披露 | 定期报告 | 2015-06-30 |
| 2015-05-14 | 4472.42 | 未披露 | 定期报告 | 2015-05-11 |
| 2015-04-08 | 4465.94 | 未披露 | 定期报告 | 2015-04-02 |
| 2015-05-14 | 4466.20 | 未披露 | 定期报告 | 2015-03-31 |
| 2015-03-26 | 4456.47 | 未披露 | 定期报告 | 2015-03-18 |
| 2015-03-26 | 4464.68 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Common stock issued through initial public offering
Exercise of stock options
Issuance of common stock to employees in connection with the release of vested deferred stock units, net of common stock withheld to settle equity awards
Issuance of common stock to nonemployees in connection with the release of vested deferred stock units
Treasury stock acquired
|
2014-12-31 |
| 2014-11-13 | 4464.88 | 未披露 | 定期报告 | 2014-11-10 |
| 2014-11-13 | 4464.54 | 未披露 | 定期报告 | 2014-09-30 |
| 2014-08-13 | 4464.42 | 未披露 | 定期报告 | 2014-08-08 |
| 2014-08-13 | 4463.59 | 未披露 | 定期报告 | 2014-06-30 |
| 2014-06-25 | 4340.59 | 未披露 | 定期报告 | 2014-06-25 |
| 2014-06-05 | 3879.59 | 未披露 | 定期报告 | 2014-05-30 |
| 2014-05-20 | 3876.59 | 未披露 | 定期报告 | 2014-03-31 |
From June 30, 2025 to September 30, 2025
Issuance of common stock in connection with the Company's equity plans
From March 31, 2025 to June 30, 2025
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
From December 31, 2024 to March 31, 2025
Issuance of common stock in connection with the Company's equity plans
From December 31, 2023 to December 31, 2024
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
From March 31, 2024 to June 30, 2024
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
From December 31, 2023 to March 31, 2024
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
From December 31, 2022 to December 31, 2023
Issuance of common stock in connection with the Company's equity plans
From June 30, 2023 to September 30, 2023
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
From March 31, 2023 to June 30, 2023
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
From December 31, 2022 to March 31, 2023
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
From December 31, 2021 to December 31, 2022
Issuance of common stock in connection with the Company's equity plans
Issuance of treasury stock in connection with the Company's equity plans
Purchase of treasury stock
From June 30, 2022 to September 30, 2022
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
From March 31, 2022 to June 30, 2022
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
From December 31, 2021 to March 31, 2022
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
From December 31, 2020 to December 31, 2021
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
Issuance of common stock in connection with the Company's equity plans
From June 30, 2021 to September 30, 2021
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
From March 31, 2021 to June 30, 2021
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
From December 31, 2020 To March 31, 2021
Issuance of common stock in connection with the Company's equity plans
From December 31, 2019 to December 31, 2020
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
Issuance of common stock in connection with the Company's equity plans
From June 30, 2020 to September 30, 2020
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
from March 31, 2020 to June 30, 2020
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
From December 31, 2019 to March 31, 2020
Issuance of common stock in connection with the Company's equity plan
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
from December 31, 2018 to December 31, 2019
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
Issuance of common stock in connection with the Company's equity plans
from June 30, 2019 to September 30, 2019
Net income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Other comprehensive income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Net loss attributable to non-controlling interests
Net proceeds from equity plans, net of withholding tax payments
Share-based compensation expense
Purchase of treasury stock
from December 31, 2018 to June 30,2019
Beginning balance adjustment as a result of the adoption of new accounting standards
Net income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Other comprehensive income (loss) attributable to Amphastar Pharmaceuticals, Inc.
Net proceeds from the private placement of ANP
Net loss attributable to non-controlling interests
Net proceeds from equity plans, net of withholding tax payments
Share-based compensation expense
Purchase of treasury stock
from December 31, 2017 to December 31, 2018
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
from December 31, 2016 to December 31, 2017
Issuance of common stock in connection with the Company's equity plans
Purchase of treasury stock
Issuance of treasury stock in connection with the Company's equity plans
from December 31, 2015 to December 31, 2016
Issuance of common stock in connection with the Company's equity plans
Treasury stock acquired
Issuance of treasury stock in connection with the Company's equity plans
from December 31, 2014 to December 31, 2015
Treasury stock acquired
Issuance of common stock from treasury
Exercise of stock options
Issuance of common stock to employees in connection with the release of vested restricted stock units, net of common stock withheld to settle equity awards
Issuance of common stock to nonemployees in connection with the release of vested restricted stock units
Issuance of common stock to employees under ESPP
from December 31, 2013 to December 31, 2014
Common stock issued through initial public offering
Exercise of stock options
Issuance of common stock to employees in connection with the release of vested deferred stock units, net of common stock withheld to settle equity awards
Issuance of common stock to nonemployees in connection with the release of vested deferred stock units
Treasury stock acquired