Amphastar Pharmaceuticals, Inc. Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Amphastar Pharmaceuticals, Inc. (AMPH) reported Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period of 46.51 thousand shares for the 6-month period ending 2026-06-30, per its 10-Q filed 2026-08-06.
Financial Statements › Shareholders' Equity › Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod · last filed 2026-08-06
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for the quarter ending 2026-06-30 was 23.46K shares, a 154.59% increase year-over-year.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for the quarter ending 2026-03-31 was 23.05K shares, a 944.79% increase year-over-year.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for the quarter ending 2025-12-31 was 12.62K shares, a 652.74% increase year-over-year.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for the quarter ending 2025-09-30 was 0.00 shares, a 100.00% decline year-over-year.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for fiscal 2025 was 24.04K shares, a 5.36% increase from fiscal 2024.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for fiscal 2024 was 22.81K shares, a 329.48% increase from fiscal 2023.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for fiscal 2023 was 5.31K shares, a 94.18% decline from fiscal 2022.
- Amphastar Pharmaceuticals, Inc. share-based compensation arrangement by share-based payment award, options, forfeitures in period for fiscal 2022 was 91.25K shares, a 52.05% decline from fiscal 2021.
| Period end | Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period 3 month | Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period 6 month | Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period 9 month | Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period 12 month |
|---|---|---|---|---|
| 2026-06-30 | 23.46K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2026-08-06 | 46.51K shares 10-Q · filed 2026-08-06 | 59.12K shares derived: sum of 3 quarters · filed 2026-08-06 | 59.12K shares derived: sum of 4 quarters · filed 2026-08-06 |
| 2026-03-31 | 23.05K shares 10-Q · filed 2026-05-07 | 35.66K shares derived: sum of 2 quarters · filed 2026-05-07 | 35.66K shares derived: sum of 3 quarters · filed 2026-05-07 | 44.88K shares derived: sum of 4 quarters · filed 2026-05-07 |
| 2025-12-31 | 12.62K shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 12.62K shares derived: sum of 2 quarters · filed 2026-02-26 | 21.83K shares derived: sum of 3 quarters · filed 2026-02-26 | 24.04K shares 10-K · filed 2026-02-26 |
| 2025-09-30 | 0.00 shares derived: 10-Q 9 month − 10-Q 6 month · filed 2025-11-06 | 9.21K shares derived: sum of 2 quarters · filed 2025-11-06 | 11.42K shares 10-Q · filed 2025-11-06 | 13.10K shares derived: sum of 4 quarters · filed 2025-11-06 |
| 2025-06-30 | 9.21K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2025-08-07 | 11.42K shares 10-Q · filed 2025-08-07 | 13.10K shares derived: sum of 3 quarters · filed 2025-08-07 | 22.60K shares derived: sum of 4 quarters · filed 2025-08-07 |
| 2025-03-31 | 2.21K shares 10-Q · filed 2025-05-08 | 3.88K shares derived: sum of 2 quarters · filed 2025-05-08 | 13.38K shares derived: sum of 3 quarters · filed 2025-05-08 | 21.19K shares derived: sum of 4 quarters · filed 2025-05-08 |
| 2024-12-31 | 1.68K shares derived: 10-K 12 month − 10-Q 9 month · filed 2025-03-03 | 11.18K shares derived: sum of 2 quarters · filed 2025-03-03 | 18.98K shares derived: sum of 3 quarters · filed 2025-03-03 | 22.81K shares 10-K · filed 2025-03-03 |
| 2024-09-30 | 9.50K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2024-11-07 | 17.31K shares derived: sum of 2 quarters · filed 2024-11-07 | 21.14K shares 10-Q · filed 2024-11-07 | 21.92K shares derived: sum of 4 quarters · filed 2024-11-07 |
| 2024-06-30 | 7.81K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2024-08-09 | 11.64K shares 10-Q · filed 2024-08-09 | 12.42K shares derived: sum of 3 quarters · filed 2024-08-09 | 12.42K shares derived: sum of 4 quarters · filed 2024-08-09 |
| 2024-03-31 | 3.83K shares 10-Q · filed 2024-05-10 | 4.62K shares derived: sum of 2 quarters · filed 2024-05-10 | 4.62K shares derived: sum of 3 quarters · filed 2024-05-10 | 7.54K shares derived: sum of 4 quarters · filed 2024-05-10 |
| 2023-12-31 | 786.00 shares derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-29 | 786.00 shares derived: sum of 2 quarters · filed 2024-02-29 | 3.71K shares derived: sum of 3 quarters · filed 2024-02-29 | 5.31K shares 10-K · filed 2024-02-29 |
| 2023-09-30 | 0.00 shares derived: 10-Q 9 month − 10-Q 6 month · filed 2023-11-08 | 2.92K shares derived: sum of 2 quarters · filed 2023-11-08 | 4.53K shares 10-Q · filed 2023-11-08 | 4.53K shares derived: sum of 4 quarters · filed 2023-11-08 |
| 2023-06-30 | 2.92K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2023-08-09 | 4.53K shares 10-Q · filed 2023-08-09 | 4.53K shares derived: sum of 3 quarters · filed 2023-08-09 | 9.64K shares derived: sum of 4 quarters · filed 2023-08-09 |
| 2023-03-31 | 1.60K shares 10-Q · filed 2023-05-09 | 1.60K shares derived: sum of 2 quarters · filed 2023-05-09 | 6.72K shares derived: sum of 3 quarters · filed 2023-05-09 | 85.21K shares derived: sum of 4 quarters · filed 2023-05-09 |
| 2022-12-31 | 0.00 shares derived: 10-K 12 month − 10-Q 9 month · filed 2023-03-01 | 5.12K shares derived: sum of 2 quarters · filed 2023-03-01 | 83.61K shares derived: sum of 3 quarters · filed 2023-03-01 | 91.25K shares 10-K · filed 2023-03-01 |
| 2022-09-30 | 5.12K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2022-11-08 | 83.61K shares derived: sum of 2 quarters · filed 2022-11-08 | 91.25K shares 10-Q · filed 2022-11-08 | 125.76K shares derived: sum of 4 quarters · filed 2022-11-08 |
| 2022-06-30 | 78.49K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2022-08-09 | 86.13K shares 10-Q · filed 2022-08-09 | 120.64K shares derived: sum of 3 quarters · filed 2022-08-09 | 177.47K shares derived: sum of 4 quarters · filed 2022-08-09 |
| 2022-03-31 | 7.65K shares 10-Q · filed 2022-05-10 | 42.15K shares derived: sum of 2 quarters · filed 2022-05-10 | 98.99K shares derived: sum of 3 quarters · filed 2022-05-10 | 146.43K shares derived: sum of 4 quarters · filed 2022-05-10 |
| 2021-12-31 | 34.51K shares derived: 10-K 12 month − 10-Q 9 month · filed 2022-03-11 | 91.34K shares derived: sum of 2 quarters · filed 2022-03-11 | 138.78K shares derived: sum of 3 quarters · filed 2022-03-11 | 190.29K shares 10-K · filed 2022-03-11 |
| 2021-09-30 | 56.84K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2021-11-09 | 104.28K shares derived: sum of 2 quarters · filed 2021-11-09 | 155.78K shares 10-Q · filed 2021-11-09 | 176.40K shares derived: sum of 4 quarters · filed 2021-11-09 |
| 2021-06-30 | 47.44K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2021-08-09 | 98.95K shares 10-Q · filed 2021-08-09 | 119.56K shares derived: sum of 3 quarters · filed 2021-08-09 | 126.93K shares derived: sum of 4 quarters · filed 2021-08-09 |
| 2021-03-31 | 51.51K shares 10-Q · filed 2021-05-07 | 72.12K shares derived: sum of 2 quarters · filed 2021-05-07 | 79.48K shares derived: sum of 3 quarters · filed 2021-05-07 | 143.91K shares derived: sum of 4 quarters · filed 2021-05-07 |
| 2020-12-31 | 20.61K shares derived: 10-K 12 month − 10-Q 9 month · filed 2021-03-15 | 27.98K shares derived: sum of 2 quarters · filed 2021-03-15 | 92.41K shares derived: sum of 3 quarters · filed 2021-03-15 | 112.18K shares 10-K · filed 2021-03-15 |
| 2020-09-30 | 7.37K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2020-11-06 | 71.80K shares derived: sum of 2 quarters · filed 2020-11-06 | 91.57K shares 10-Q · filed 2020-11-06 | 95.42K shares derived: sum of 4 quarters · filed 2020-11-06 |
| 2020-06-30 | 64.43K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2020-08-07 | 84.20K shares 10-Q · filed 2020-08-07 | 88.06K shares derived: sum of 3 quarters · filed 2020-08-07 | 90.61K shares derived: sum of 4 quarters · filed 2020-08-07 |
| 2020-03-31 | 19.77K shares 10-Q · filed 2020-05-11 | 23.62K shares derived: sum of 2 quarters · filed 2020-05-11 | 26.18K shares derived: sum of 3 quarters · filed 2020-05-11 | 27.57K shares derived: sum of 4 quarters · filed 2020-05-11 |
| 2019-12-31 | 3.85K shares derived: 10-K 12 month − 10-Q 9 month · filed 2020-03-16 | 6.41K shares derived: sum of 2 quarters · filed 2020-03-16 | 7.80K shares derived: sum of 3 quarters · filed 2020-03-16 | 11.63K shares 10-K · filed 2020-03-16 |
| 2019-09-30 | 2.56K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2019-11-08 | 3.95K shares derived: sum of 2 quarters · filed 2019-11-08 | 7.78K shares 10-Q · filed 2019-11-08 | 19.97K shares derived: sum of 4 quarters · filed 2019-11-08 |
| 2019-06-30 | 1.39K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2019-08-09 | 5.22K shares 10-Q · filed 2019-08-09 | 17.41K shares derived: sum of 3 quarters · filed 2019-08-09 | 24.81K shares derived: sum of 4 quarters · filed 2019-08-09 |
| 2019-03-31 | 3.83K shares 10-Q · filed 2019-05-10 | 16.03K shares derived: sum of 2 quarters · filed 2019-05-10 | 23.43K shares derived: sum of 3 quarters · filed 2019-05-10 | 40.94K shares derived: sum of 4 quarters · filed 2019-05-10 |
| 2018-12-31 | 12.19K shares derived: 10-K 12 month − 10-Q 9 month · filed 2019-03-15 | 19.59K shares derived: sum of 2 quarters · filed 2019-03-15 | 37.11K shares derived: sum of 3 quarters · filed 2019-03-15 | 143.72K shares 10-K · filed 2019-03-15 |
| 2018-09-30 | 7.40K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2018-11-09 | 24.91K shares derived: sum of 2 quarters · filed 2018-11-09 | 131.53K shares 10-Q · filed 2018-11-09 | 133.91K shares derived: sum of 4 quarters · filed 2018-11-09 |
| 2018-06-30 | 17.51K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2018-08-09 | 124.13K shares 10-Q · filed 2018-08-09 | 126.51K shares derived: sum of 3 quarters · filed 2018-08-09 | 132.78K shares derived: sum of 4 quarters · filed 2018-08-09 |
| 2018-03-31 | 106.61K shares 10-Q · filed 2018-05-10 | 109.00K shares derived: sum of 2 quarters · filed 2018-05-10 | 115.27K shares derived: sum of 3 quarters · filed 2018-05-10 | 143.59K shares derived: sum of 4 quarters · filed 2018-05-10 |
| 2017-12-31 | 2.38K shares derived: 10-K 12 month − 10-Q 9 month · filed 2018-03-14 | 8.65K shares derived: sum of 2 quarters · filed 2018-03-14 | 36.98K shares derived: sum of 3 quarters · filed 2018-03-14 | 46.86K shares 10-K · filed 2018-03-14 |
| 2017-09-30 | 6.27K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2017-11-09 | 34.59K shares derived: sum of 2 quarters · filed 2017-11-09 | 44.47K shares 10-Q · filed 2017-11-09 | 48.62K shares derived: sum of 4 quarters · filed 2017-11-09 |
| 2017-06-30 | 28.33K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2017-08-09 | 38.21K shares 10-Q · filed 2017-08-09 | 42.35K shares derived: sum of 3 quarters · filed 2017-08-09 | 90.91K shares derived: sum of 4 quarters · filed 2017-08-09 |
| 2017-03-31 | 9.88K shares 10-Q · filed 2017-05-10 | 14.03K shares derived: sum of 2 quarters · filed 2017-05-10 | 62.59K shares derived: sum of 3 quarters · filed 2017-05-10 | 173.58K shares derived: sum of 4 quarters · filed 2017-05-10 |
| 2016-12-31 | 4.15K shares derived: 10-K 12 month − 10-Q 9 month · filed 2017-03-15 | 52.71K shares derived: sum of 2 quarters · filed 2017-03-15 | 163.70K shares derived: sum of 3 quarters · filed 2017-03-15 | 178.93K shares 10-K · filed 2017-03-15 |
| 2016-09-30 | 48.56K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2016-11-09 | 159.55K shares derived: sum of 2 quarters · filed 2016-11-09 | 174.78K shares 10-Q · filed 2016-11-09 | 217.42K shares derived: sum of 4 quarters · filed 2016-11-09 |
| 2016-06-30 | 110.99K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2016-08-09 | 126.22K shares 10-Q · filed 2016-08-09 | 168.86K shares derived: sum of 3 quarters · filed 2016-08-09 | 183.40K shares derived: sum of 4 quarters · filed 2016-08-09 |
| 2016-03-31 | 15.23K shares 10-Q · filed 2016-05-10 | 57.87K shares derived: sum of 2 quarters · filed 2016-05-10 | 72.41K shares derived: sum of 3 quarters · filed 2016-05-10 | 84.44K shares derived: sum of 4 quarters · filed 2016-05-10 |
| 2015-12-31 | 42.64K shares derived: 10-K 12 month − 10-Q 9 month · filed 2016-03-15 | 57.17K shares derived: sum of 2 quarters · filed 2016-03-15 | 69.21K shares derived: sum of 3 quarters · filed 2016-03-15 | 73.23K shares 10-K · filed 2016-03-15 |
| 2015-09-30 | 14.53K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2015-11-13 | 26.57K shares derived: sum of 2 quarters · filed 2015-11-13 | 30.59K shares 10-Q · filed 2015-11-13 | 105.79K shares derived: sum of 4 quarters · filed 2016-03-15 |
| 2015-06-30 | 12.04K shares derived: 10-Q 6 month − 10-Q 3 month · filed 2015-08-13 | 16.06K shares 10-Q · filed 2015-08-13 | 91.26K shares derived: sum of 3 quarters · filed 2016-03-15 | 108.86K shares derived: sum of 4 quarters · filed 2016-03-15 |
| 2015-03-31 | 4.02K shares 10-Q · filed 2015-05-14 | 79.22K shares derived: sum of 2 quarters · filed 2016-03-15 | 96.82K shares derived: sum of 3 quarters · filed 2016-03-15 | |
| 2014-12-31 | 75.20K shares derived: 10-K 12 month − 10-Q 9 month · filed 2016-03-15 | 92.80K shares derived: sum of 2 quarters · filed 2016-03-15 | 135.40K shares 10-K · filed 2016-03-15 | |
| 2014-09-30 | 17.60K shares derived: 10-Q 9 month − 10-Q 6 month · filed 2014-11-13 | 60.20K shares 10-Q · filed 2014-11-13 | ||
| 2014-06-30 | 42.60K shares 10-Q · filed 2014-08-13 | |||
| 2013-12-31 | 403.37K shares 10-K · filed 2015-03-26 |
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