安法斯塔制药公司
US ˙ NasdaqGS ˙ US03209R1032

介绍

本页面提供了有关 Rong Zhou 已知的内部交易历史的全面分析。内部人士包括公司的高管、董事或重要投资者。一般而言，基于内幕、非公开信息进行交易是非法的。这并不意味着他们在自己的公司进行任何交易都是非法的。但是，他们必须通过Form 4向美国证券交易委员会（SEC）报告所有交易。尽管存在这些限制，学术研究表明，整体而言，内部人士在自己公司中的投资表现往往优于市场。

平均交易盈利能力

“平均交易盈利能力”衡量了内部人士在过去三年中所有非计划性的公开市场买入交易的平均回报率。计算过程包括检查每笔交易，排除了作为10b5-1交易计划的一部分的交易。然后，对每笔交易在3、6和12个月的表现进行平均，以生成该笔交易最终的表现指标。然后，将所有交易的表现指标进行平均，计算出内部人士的总体平均表现指标。列表仅包含在过去两年中进行过至少三笔交易的内部人士。

如果内部人士的交易盈利能力显示为"N/A"，则可能是因为该内部人士在过去三年内没有进行任何公开市场买入交易，或者他们进行的交易距离现在时间太近，无法计算出可靠的表现指标。

更新频率：每日

查看收益最高的的内幕交易者列表。

查看排名最高的内部人士。
报告内部持仓的公司

美国证券交易委员会（SEC）文件显示Rong Zhou已报告在以下公司拥有持仓或进行了交易：

证券 职位 最新报告的持仓
US:AMPH / Amphastar Pharmaceuticals, Inc. SENIOR EVP, PRODUCTION CENTER 137,497
如何解读这些图表

以下图表显示了在Rong Zhou进行的每笔公开市场非计划交易后证券的股价表现。非计划交易是指没有作为10b5-1交易计划的一部分而进行的交易。股价表现以累积百分比变化的方式绘制。例如，如果一笔内部人士交易是在2019年1月1日进行的，该图表将显示该证券的每日百分比变化直至当前日期。如果在此期间股价从10美元涨至15美元，则股价的累积百分比变化将为50%。从10美元涨至20美元的价格变化将为100%，而从10美元跌至5美元的价格变化将为-50%。

最终，我们将评估内部人士的交易与股价的超额回报（正向或负向）之间的相关性，以判断内部人士是否在交易中利用内部信息获利。如果内部人士有这样的行为，我们预期看到（a）买入后的正回报，或者（b）卖出后的负回报。对于情况（a），买入图表将显示一系列向上倾斜的曲线，表示每次买入后都有正回报。对于情况（b），卖出图表将显示一系列向下倾斜的曲线，表示每次卖出后都有负回报。

然而，仅凭这一点还不足以得出结论。例如，如果公司的股价在多年内呈现非周期性上升，我们会预期所有买入后的图表都呈现向上倾斜。同样地，多年来呈现非周期性下降的股价会导致卖出后的图表也呈现向下倾斜。这两种情况的图表都不能表示内部人士在进行内幕交易。

最有力的指标是在公司股价呈极度循环波动的情况下，“买入”图表显示正向信号，而“卖出”图表显示负向趋势。这种情况强烈暗示内部人士可能根据内幕信息精确地计时进行交易，以获得财务优势。

AMPH / Amphastar Pharmaceuticals, Inc.内部人士买入 - 短期收益分析

在这一部分，我们分析了在 AMPH / Amphastar Pharmaceuticals, Inc. 中进行的每笔非计划的公开市场内部人士买入的盈利情况。这种分析有助于了解内部人士是否持续产生异常的回报，以及是否值得跟踪。该分析基于每笔交易后一年的情况，结果仅为理论值。

以下表格显示了最近的自动交易计划之外的公开市场买入。

交易日期 股票代码 内部人士 报告
股数		 报告
价格		 经调整
股数		 经调整
价格		 成本基础 达到最高利润的
天数		 达到最高利润时的
价格		 最高
利润($)		 最高回报率（%）
当前未知该内部人士进行过任何未预先计划的公开市场交易。

经调整价格 已按拆股调整。经调整股数 已按拆股调整。

AMPH / Amphastar Pharmaceuticals, Inc. Insider Trades
AMPH / Amphastar Pharmaceuticals, Inc.内部人士卖出 - 短期亏损分析

在这一部分，我们分析了在 AMPH / Amphastar Pharmaceuticals, Inc. 中进行的每笔非计划的公开市场内部人士卖出所达成的短期亏损规避。如果存在持续的亏损规避模式，可能表明未来的内部人士卖出交易预示着价格的下跌。该分析基于每笔交易后一年的情况，

以下表格显示了最近的自动交易计划之外的公开市场买入。

交易日期 股票代码 内部人士 报告
股数		 报告
价格		 经调整
股数		 经调整
价格		 成本基础 达到最低利润的
天数		 达到最低利润时的
价格		 避免的
最高损失金额($)		 避免的
最高损失率($)
2024-12-13 AMPH Zhou Rong 8,000 45.2300 8,000 45.2300 361,840 217 20.6200 -196,880 -54.41
2024-12-12 AMPH Zhou Rong 7,000 44.4250 7,000 44.4250 310,975
2024-11-12 AMPH Zhou Rong 6,893 48.8800 6,893 48.8800 336,930
2024-09-13 AMPH Zhou Rong 3,000 48.2615 3,000 48.2615 144,784
2024-08-26 AMPH Zhou Rong 4,000 48.3500 4,000 48.3500 193,400
2023-12-04 AMPH Zhou Rong 3,514 59.5800 3,514 59.5800 209,364
2023-12-01 AMPH Zhou Rong 4,316 58.5800 4,316 58.5800 252,831
2023-06-15 AMPH Zhou Rong 5,000 51.7893 5,000 51.7893 258,946
2023-06-13 AMPH Zhou Rong 5,000 48.2400 5,000 48.2400 241,200
2023-05-18 AMPH Zhou Rong 10,000 44.2050 10,000 44.2050 442,050
2021-06-09 AMPH Zhou Rong 4,732 19.5800 4,732 19.5800 92,653
2021-06-08 AMPH Zhou Rong 8,180 19.3370 8,180 19.3370 158,177
2021-05-14 AMPH Zhou Rong 17,419 19.7178 17,419 19.7178 343,464
2021-05-13 AMPH Zhou Rong 700 19.5800 700 19.5800 13,706
2020-06-04 AMPH Zhou Rong 9,806 19.1900 9,806 19.1900 188,177
2020-06-03 AMPH Zhou Rong 13,163 18.8162 13,163 18.8162 247,678
2016-06-15 AMPH Zhou Rong 1,551 15.8503 1,551 15.8503 24,584
2015-12-16 AMPH Zhou Rong 772 14.2901 772 14.2901 11,032
2015-06-17 AMPH Zhou Rong 1,000 16.4800 1,000 16.4800 16,480

经调整价格 已按拆股调整。经调整股数 已按拆股调整。

AMPH / Amphastar Pharmaceuticals, Inc. Insider Trades
内幕交易历史

该表格显示了由 Rong Zhou 进行的所有内幕交易的完整列表，这些交易已向美国证券交易委员会（SEC）披露。

备案日期 交易日期 表格 股票代码 证券 代码 10b5-1 股数 剩余股数 %
变化		 每股
股价		 交易
金额		 剩余
金额
2025-03-18 2025-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		F - Taxes -1,967 137,497 -1.41 27.69 -54,466 3,807,292
2025-03-18 2025-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,222 139,464 -0.87 26.66 -32,579 3,718,110
2025-03-12 2025-03-10 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		A - Award 24,692 140,686 21.29
2025-03-10 2025-03-06 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,354 115,994 -1.15 28.32 -38,345 3,284,950
2025-03-06 2025-03-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,121 117,348 -0.95 27.62 -30,962 3,241,152
2024-12-16 2024-12-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -8,000 118,469 -6.33 45.23 -361,840 5,358,353
2024-12-16 2024-12-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 8,000 126,469 6.75 11.33 90,640 1,432,894
2024-12-16 2024-12-12 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -7,000 118,469 -5.58 44.42 -310,975 5,262,985
2024-12-16 2024-12-12 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 7,000 125,469 5.91 11.33 79,310 1,421,564
2024-11-13 2024-11-12 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -6,893 118,388 -5.50 48.88 -336,930 5,786,805
2024-11-13 2024-11-12 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 6,893 125,281 5.82 14.95 103,050 1,872,951
2024-09-17 2024-09-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		S - Sale -3,000 118,388 -2.47 48.26 -144,784 5,713,582
2024-09-17 2024-09-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		M - Exercise 3,000 121,388 2.53 14.95 44,850 1,814,751
2024-08-27 2024-08-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		S - Sale -4,000 118,388 -3.27 48.35 -193,400 5,724,060
2024-08-27 2024-08-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		M - Exercise 4,000 122,388 3.38 14.95 59,800 1,829,701
2024-03-19 2024-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,961 118,016 -1.63 43.05 -84,421 5,080,589
2024-03-19 2024-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		F - Taxes -2,355 119,977 -1.93 43.05 -101,383 5,165,010
2024-03-19 2024-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		F - Taxes -1,219 122,332 -0.99 43.05 -52,478 5,266,393
2024-03-08 2024-03-06 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		F - Taxes -1,390 123,551 -1.11 46.31 -64,371 5,721,647
2024-03-06 2024-03-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Srock 		A - Award 12,521 124,941 11.14
2023-12-05 2023-12-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -3,514 112,420 -3.03 59.58 -209,364 6,697,984
2023-12-05 2023-12-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 3,514 115,934 3.13 16.19 56,892 1,876,971
2023-12-05 2023-12-01 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -4,316 112,420 -3.70 58.58 -252,831 6,585,564
2023-12-05 2023-12-01 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 4,316 116,736 3.84 14.40 62,150 1,680,998
2023-06-21 2023-06-20 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 9,651 112,341 9.40 11.33 109,346 1,272,824
2023-06-20 2023-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 1,171 102,690 1.15 16.19 18,958 1,662,551
2023-06-20 2023-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 4,631 101,519 4.78 14.95 69,233 1,517,709
2023-06-20 2023-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -5,000 96,888 -4.91 51.79 -258,946 5,017,762
2023-06-20 2023-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 13,575 101,888 15.37 14.40 195,480 1,467,187
2023-06-14 2023-06-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -5,000 88,313 -5.36 48.24 -241,200 4,260,219
2023-06-14 2023-06-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 5,000 93,313 5.66 14.40 72,000 1,343,707
2023-05-19 2023-05-18 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -10,000 87,598 -10.25 44.20 -442,050 3,872,270
2023-05-19 2023-05-18 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 10,000 97,598 11.42 14.40 144,000 1,405,411
2023-03-20 2023-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,901 87,598 -2.12 36.29 -68,987 3,178,931
2023-03-20 2023-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -2,283 89,499 -2.49 37.60 -85,841 3,365,162
2023-03-17 2023-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -2,057 91,782 -2.19 36.84 -75,780 3,381,249
2023-03-08 2023-03-06 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 15,129 93,839 19.22
2022-03-18 2022-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -2,447 77,583 -3.06 34.18 -83,638 2,651,787
2022-03-18 2022-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -2,283 80,030 -2.77 34.22 -78,124 2,738,627
2022-03-17 2022-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 31,516 31,516
2022-03-17 2022-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,652 82,313 -1.97 34.74 -57,390 2,859,554
2022-03-17 2022-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 13,658 83,965 19.43
2022-03-01 2022-02-25 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -7,000 0 -100.00
2022-03-01 2022-02-25 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -13,246 70,307 -15.85 28.77 -381,087 2,022,732
2022-03-01 2022-02-25 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 7,000 83,553 9.14 10.93 76,510 913,234
2022-02-09 2022-02-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -7,000 7,000 -50.00
2022-02-09 2022-02-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -7,000 76,553 -8.38 26.77 -187,390 2,049,324
2022-02-09 2022-02-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 7,000 83,553 9.14 10.93 76,510 913,234
2022-01-11 2022-01-10 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -14,000 14,000 -50.00
2022-01-11 2022-01-10 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -10,251 76,553 -11.81 25.77 -264,156 1,972,679
2022-01-11 2022-01-10 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -10,677 86,804 -10.95 24.96 -266,528 2,166,871
2022-01-11 2022-01-10 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 14,000 97,481 16.77 10.93 153,020 1,065,467
2021-11-12 2021-11-11 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -7,813 0 -100.00
2021-11-12 2021-11-11 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -7,813 83,121 -8.59 21.67 -169,308 1,801,232
2021-11-12 2021-11-11 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 7,813 90,934 9.40 10.48 81,880 952,988
2021-08-04 2021-08-02 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -6,000 7,813 -43.44
2021-08-04 2021-08-02 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -9,123 83,121 -9.89 21.24 -193,734 1,765,141
2021-08-04 2021-08-02 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 6,000 92,244 6.96 10.48 62,880 966,717
2021-07-27 2021-07-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -6,000 13,813 -30.28
2021-07-27 2021-07-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -6,000 86,244 -6.50 20.87 -125,220 1,799,912
2021-07-27 2021-07-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 6,000 92,244 6.96 10.48 62,880 966,717
2021-07-22 2021-07-20 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -5,187 19,813 -20.75
2021-07-22 2021-07-20 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -5,187 86,244 -5.67 20.57 -106,697 1,774,039
2021-07-22 2021-07-20 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 5,187 91,431 6.01 10.48 54,360 958,197
2021-06-10 2021-06-09 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -4,732 86,244 -5.20 19.58 -92,653 1,688,658
2021-06-10 2021-06-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -8,180 0 -100.00
2021-06-10 2021-06-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -8,180 90,976 -8.25 19.34 -158,177 1,759,203
2021-06-10 2021-06-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 8,180 99,156 8.99 14.23 116,401 1,410,990
2021-05-17 2021-05-14 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -11,120 8,180 -57.62
2021-05-17 2021-05-14 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -17,419 89,966 -16.22 19.72 -343,464 1,773,932
2021-05-17 2021-05-14 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 11,120 107,385 11.55 14.23 158,238 1,528,089
2021-05-17 2021-05-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -700 19,300 -3.50
2021-05-17 2021-05-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -700 96,265 -0.72 19.58 -13,706 1,884,869
2021-05-17 2021-05-13 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 700 96,965 0.73 14.23 9,961 1,379,812
2021-03-18 2021-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 51,621 51,621
2021-03-18 2021-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 21,984 96,265 29.60
2021-03-18 2021-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -3,303 74,281 -4.26 18.44 -60,907 1,369,742
2021-03-17 2021-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,652 77,584 -2.08 19.15 -31,636 1,485,734
2020-06-05 2020-06-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -8,918 0 -100.00
2020-06-05 2020-06-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -9,806 79,236 -11.01 19.19 -188,177 1,520,539
2020-06-05 2020-06-04 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 8,918 89,042 11.13 11.41 101,754 1,015,969
2020-06-05 2020-06-03 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -11,082 8,918 -55.41
2020-06-05 2020-06-03 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -13,163 80,124 -14.11 18.82 -247,678 1,507,629
2020-06-05 2020-06-03 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 11,082 93,287 13.48 11.41 126,446 1,064,405
2020-03-18 2020-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -992 80,891 -1.21 14.50 -14,384 1,172,920
2020-03-18 2020-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 61,822 61,822
2020-03-18 2020-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 26,400 81,883 47.58
2020-03-18 2020-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,020 55,483 -1.81 13.03 -13,291 722,943
2020-03-17 2020-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,653 56,503 -2.84 14.19 -23,456 801,778
2019-06-17 2019-06-14 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -204 58,156 -0.35 19.82 -4,043 1,152,652
2019-05-07 2019-05-06 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -9,600 0 -100.00
2019-05-07 2019-05-06 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -9,600 57,107 -14.39 22.76 -218,496 1,299,755
2019-05-07 2019-05-06 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 9,600 66,707 16.81 20.26 194,496 1,351,484
2019-03-28 2019-03-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -814 57,107 -1.41 20.54 -16,720 1,172,978
2019-03-18 2019-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,510 57,921 -2.54 20.23 -30,547 1,171,742
2019-03-18 2019-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,553 59,431 -2.55 20.23 -31,417 1,202,289
2019-03-18 2019-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 22,541 22,541
2019-03-18 2019-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,179 60,984 -1.90 20.23 -23,851 1,233,706
2019-03-18 2019-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 10,133 62,163 19.48
2019-03-04 2019-03-01 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -3,200 6,400 -33.33
2019-03-04 2019-03-01 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -3,200 52,030 -5.79 25.00 -80,000 1,300,750
2019-03-04 2019-03-01 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 3,200 55,230 6.15 20.26 64,832 1,118,960
2019-03-04 2019-02-05 4/A AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -3,200 9,600 -25.00
2019-02-07 2019-02-05 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		M - Exercise -3,200 12,800 -20.00
2019-02-07 2019-02-05 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -4,289 52,030 -7.62 23.00 -98,647 1,196,690
2019-02-07 2019-02-05 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		M - Exercise 3,200 56,319 6.02 20.26 64,832 1,141,023
2018-12-06 2018-12-03 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -1,089 53,119 -2.01 22.00 -23,958 1,168,618
2018-11-13 2018-11-09 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -1,089 53,303 -2.00 21.00 -22,869 1,119,363
2018-11-13 2018-11-08 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -1,084 54,392 -1.95 20.00 -21,680 1,087,840
2018-06-18 2018-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -134 55,476 -0.24 16.88 -2,262 936,435
2018-03-28 2018-03-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -535 54,434 -0.97 18.61 -9,956 1,013,017
2018-03-20 2018-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -969 54,969 -1.73 19.91 -19,293 1,094,433
2018-03-20 2018-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,128 55,938 -1.98 19.91 -22,458 1,113,726
2018-03-16 2018-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 20,827 20,827
2018-03-16 2018-03-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 8,969 57,066 18.65
2017-06-16 2017-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -146 48,096 -0.30 16.18 -2,362 778,193
2017-03-28 2017-03-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -568 46,972 -1.19 13.76 -7,816 646,335
2017-03-20 2017-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -1,248 47,540 -2.56 13.75 -17,160 653,675
2017-03-20 2017-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 29,424 29,424
2017-03-20 2017-03-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 11,797 48,788 31.89
2016-12-07 2016-12-05 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale X -61 36,991 -0.16 20.70 -1,262 765,547
2016-06-17 2016-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -146 36,991 -0.39 15.76 -2,301 582,978
2016-06-17 2016-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -1,551 37,137 -4.01 15.85 -24,584 588,633
2016-03-29 2016-03-26 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		F - Taxes -568 37,137 -1.51 11.96 -6,793 444,159
2016-03-21 2016-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 34,438 34,438
2016-03-21 2016-03-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 11,473 37,705 43.74
2015-12-17 2015-12-16 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -772 25,460 -2.94 14.29 -11,032 363,826
2015-06-19 2015-06-17 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		S - Sale -1,000 26,232 -3.67 16.48 -16,480 432,303
2015-06-17 2015-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Employee Stock Option (right to buy) 		A - Award 4,685 4,685
2015-06-17 2015-06-15 4 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		A - Award 1,544 27,232 6.01
2015-06-17 3 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		156,044
2015-06-17 3 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		230,024
2015-06-17 3 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		135,356
2015-06-17 3 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		156,044
2015-06-17 3 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		230,024
2015-06-17 3 AMPH Amphastar Pharmaceuticals, Inc.
Common Stock 		135,356
P
非衍生或衍生证券的公开市场或私下买入
S
非衍生或衍生证券的公开市场或私下卖出
A
公司向内部人员授予、奖励或以其他方式获取证券（例如股票期权）
C
衍生工具转换
D
将证券卖出或转让回公司
F
使用从公司收到的证券的一部分来支付行使价或税务负担。
G
内部人士赠送或接收他人赠送公司股票
K
股权掉期和类似的避险交易
M
行使或转换从公司获得的衍生证券（例如期权）
V
内部人士通过Form 4自愿报告的一笔交易
J
其他（附有交易描述的脚注）