AMPH
Amphastar Pharmaceuticals, Inc.
-0.25 (-1.04%)23.70USD95.6K成交股數1.0B市值14.0本益比(近四季)1.4股價營收比+5.4%營收年增(近四季)2026-11-05下次財報
內部人交易 SEC Form 4 · 董事、高階主管與持股 10% 以上股東 · 交易後兩個營業日內申報
買賣點與股價近一年
● 公開市場買進 · ● 公開市場賣出 · 空心 = 10b5-1 預設計畫(事先排程,不代表當下看法)。近一年,只畫 P / S 兩種代碼。
統計
| 近 90 天 買進筆數 · 金額 · 人數 | 0 · 0 · 0 |
|---|---|
| 近 90 天 賣出筆數 · 金額 · 人數 | 3 · 421K · 3 |
| 其中 10b5-1 計畫賣出 | 1 筆 |
| 近 180 天 買進 · 賣出金額 | 0 · 421K |
| 近 180 天 淨額 | −421K |
公開市場買進(P)是內部人自掏腰包,通常比賣出更有資訊含量 —— 賣出的理由很多(繳稅、分散、買房),買進的理由只有一個。
10b5-1 是事先排定的交易計畫,執行時點不反映當下看法。獲配股票(A)、繳稅扣股(F)、選擇權執行(M)是薪酬流程,不是意見。
| 交易日 | 申報日 | 申報人 | 職稱 | 代碼 | 股數 | 價格 | 金額 | 交易後持股 | 原件 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-02 | 09-03 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | S 公開市場賣出 | 3.2K | 23.63 | 75K | 169K | SEC |
| 2026-08-11 | 08-12 | PRINS RICHARD K | Director | S 公開市場賣出 | 8.0K | 20.30 | 162K | 29.6K | SEC |
| 2026-08-07 | 08-11 | PETERS WILLIAM J | CFO, EVP & TREASURER | M 選擇權執行 | 5.1K | 19.79 | 100K | 181K | SEC |
| 2026-08-07 | 08-11 | PETERS WILLIAM J | CFO, EVP & TREASURER | S 公開市場賣出(10b5-1) | 8.2K | 22.48 | 184K | 173K | SEC |
| 2026-07-09 | 07-13 | Pierce Anthony T | Director | A 獲配股票 | 7.9K | – | – | 7.9K | SEC |
| 2026-06-02 | 06-03 | Lee Howard | Director | F 繳稅扣股 | 769 | 18.45 | 14K | 159K | SEC |
| 2026-06-01 | 06-03 | ZASLOFF MICHAEL A | Director | A 獲配股票 | 8.1K | – | – | 37.7K | SEC |
| 2026-06-01 | 06-03 | Gerst Diane G. | Director | A 獲配股票 | 8.1K | – | – | 31.9K | SEC |
| 2026-06-01 | 06-03 | PRINS RICHARD K | Director | A 獲配股票 | 8.1K | – | – | 37.6K | SEC |
| 2026-06-01 | 06-03 | Gaugh David Russell | Director | A 獲配股票 | 8.1K | – | – | 14.4K | SEC |
| 2026-06-01 | 06-03 | Lee Howard | Director | A 獲配股票 | 8.1K | – | – | 160K | SEC |
| 2026-06-01 | 06-03 | Deflin Gayle | Director | A 獲配股票 | 8.1K | – | – | 19.1K | SEC |
| 2026-03-15 | 03-17 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 2.9K | 18.18 | 53K | 1.2M | SEC |
| 2026-03-15 | 03-17 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 9.8K | 18.18 | 178K | 3.0M | SEC |
| 2026-03-15 | 03-17 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 9.8K | 18.18 | 178K | 3.0M | SEC |
| 2026-03-15 | 03-17 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | F 繳稅扣股 | 1.2K | 18.18 | 22K | 172K | SEC |
| 2026-03-15 | 03-17 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | F 繳稅扣股 | 1.0K | 18.18 | 19K | 122K | SEC |
| 2026-03-15 | 03-17 | PETERS WILLIAM J | CFO, EVP & TREASURER | F 繳稅扣股 | 2.0K | 18.18 | 36K | 175K | SEC |
| 2026-03-15 | 03-17 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 2.9K | 18.18 | 53K | 1.2M | SEC |
| 2026-03-10 | 03-11 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 4.4K | 18.91 | 83K | 1.2M | SEC |
| 2026-03-10 | 03-11 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 14.8K | 18.91 | 280K | 3.0M | SEC |
| 2026-03-10 | 03-11 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 4.4K | 18.91 | 83K | 1.2M | SEC |
| 2026-03-10 | 03-11 | PETERS WILLIAM J | CFO, EVP & TREASURER | F 繳稅扣股 | 3.3K | 18.91 | 62K | 177K | SEC |
| 2026-03-10 | 03-11 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 14.8K | 18.91 | 280K | 3.0M | SEC |
| 2026-03-10 | 03-11 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | F 繳稅扣股 | 2.2K | 18.91 | 42K | 173K | SEC |
| 2026-03-10 | 03-11 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | F 繳稅扣股 | 1.9K | 18.91 | 35K | 123K | SEC |
| 2026-03-09 | 03-11 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | A 獲配股票 | 39.4K | – | – | 175K | SEC |
| 2026-03-09 | 03-11 | PETERS WILLIAM J | CFO, EVP & TREASURER | A 獲配股票 | 58.7K | – | – | 180K | SEC |
| 2026-03-09 | 03-11 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | A 獲配股票 | 181K | – | – | 3.0M | SEC |
| 2026-03-09 | 03-11 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | A 獲配股票 | 72.5K | – | – | 1.3M | SEC |
| 2026-03-09 | 03-11 | Luo Mary Z. | COO, Chief Scientist, Chairman | A 獲配股票 | 72.5K | – | – | 1.3M | SEC |
| 2026-03-09 | 03-11 | Luo Mary Z. | COO, Chief Scientist, Chairman | A 獲配股票 | 181K | – | – | 3.0M | SEC |
| 2026-03-09 | 03-11 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | A 獲配股票 | 35.5K | – | – | 125K | SEC |
| 2026-03-06 | 03-10 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | F 繳稅扣股 | 1.1K | 19.34 | 22K | 89.3K | SEC |
| 2026-03-06 | 03-10 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | F 繳稅扣股 | 1.4K | 19.34 | 26K | 136K | SEC |
| 2026-03-06 | 03-10 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 7.8K | 19.34 | 150K | 2.8M | SEC |
| 2026-03-06 | 03-10 | PETERS WILLIAM J | CFO, EVP & TREASURER | F 繳稅扣股 | 2.1K | 19.34 | 42K | 122K | SEC |
| 2026-03-06 | 03-10 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 3.1K | 19.34 | 60K | 1.2M | SEC |
| 2026-03-06 | 03-10 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 7.8K | 19.34 | 150K | 2.8M | SEC |
| 2026-03-06 | 03-10 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 3.1K | 19.34 | 60K | 1.2M | SEC |
| 2026-03-04 | 03-06 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | F 繳稅扣股 | 965 | 19.96 | 19K | 90.5K | SEC |
| 2026-03-04 | 03-06 | PETERS WILLIAM J | CFO, EVP & TREASURER | F 繳稅扣股 | 1.7K | 19.96 | 35K | 124K | SEC |
| 2026-03-04 | 03-06 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 2.4K | 19.96 | 49K | 1.2M | SEC |
| 2026-03-04 | 03-06 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 5.8K | 19.96 | 115K | 2.8M | SEC |
| 2026-03-04 | 03-06 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 2.4K | 19.96 | 49K | 1.2M | SEC |
| 2026-03-04 | 03-06 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | F 繳稅扣股 | 1.1K | 19.96 | 22K | 137K | SEC |
| 2026-03-04 | 03-06 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 5.8K | 19.96 | 115K | 2.8M | SEC |
| 2025-12-17 | 12-18 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | M 選擇權執行 | 9.8K | 11.33 | 111K | 148K | SEC |
| 2025-12-17 | 12-18 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | S 公開市場賣出 | 9.8K | 26.20 | 256K | 138K | SEC |
| 2025-12-12 | 12-15 | Petersen Floyd F. | Director | S 公開市場賣出 | 2.4K | 25.92 | 63K | 71.4K | SEC |
| 2025-12-11 | 12-15 | Petersen Floyd F. | Director | S 公開市場賣出 | 1.7K | 25.69 | 45K | 73.8K | SEC |
| 2025-11-25 | 11-25 | PRINS RICHARD K | Director | S 公開市場賣出 | 4.2K | 27.10 | 113K | 35.2K | SEC |
| 2025-11-25 | 11-25 | PRINS RICHARD K | Director | M 選擇權執行 | 4.2K | 16.69 | 70K | 39.4K | SEC |
| 2025-11-13 | 11-17 | Petersen Floyd F. | Director | M 選擇權執行 | 16.7K | 16.69 | 278K | 92.2K | SEC |
| 2025-11-13 | 11-17 | Petersen Floyd F. | Director | S 公開市場賣出 | 16.7K | 26.49 | 442K | 75.5K | SEC |
| 2025-11-03 | 11-05 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 25.27 | 13K | 75.5K | SEC |
| 2025-10-01 | 10-02 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 27.20 | 14K | 76.0K | SEC |
| 2025-09-02 | 09-03 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 30.98 | 15K | 76.5K | SEC |
| 2025-08-01 | 08-04 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 20.83 | 10K | 77.0K | SEC |
| 2025-07-18 | 07-22 | Gaugh David Russell | Director | A 獲配股票 | 6.3K | – | – | 6.3K | SEC |
| 2025-07-02 | 07-03 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 23.47 | 12K | 77.5K | SEC |
| 2025-06-13 | 06-16 | Luo Mary Z. | COO, Chief Scientist, Chairman | M 選擇權執行 | 200K | 13.03 | 2.6M | 2.8M | SEC |
| 2025-06-13 | 06-16 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | M 選擇權執行 | 200K | 13.03 | 2.6M | 2.8M | SEC |
| 2025-06-03 | 06-04 | Lee Howard | Director | F 繳稅扣股 | 923 | 26.01 | 24K | 152K | SEC |
| 2025-06-02 | 06-04 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 25.67 | 13K | 72.9K | SEC |
| 2025-06-02 | 06-04 | ZASLOFF MICHAEL A | Director | A 獲配股票 | 5.1K | – | – | 29.5K | SEC |
| 2025-06-02 | 06-04 | Lee Howard | Director | A 獲配股票 | 5.1K | – | – | 153K | SEC |
| 2025-06-02 | 06-04 | Deflin Gayle | Director | A 獲配股票 | 5.1K | – | – | 10.9K | SEC |
| 2025-06-02 | 06-04 | Gerst Diane G. | Director | A 獲配股票 | 5.1K | – | – | 23.8K | SEC |
| 2025-06-02 | 06-04 | PRINS RICHARD K | Director | A 獲配股票 | 5.1K | – | – | 35.2K | SEC |
| 2025-06-02 | 06-04 | Petersen Floyd F. | Director | A 獲配股票 | 5.1K | – | – | 78.0K | SEC |
| 2025-05-19 | 05-20 | PETERS WILLIAM J | CFO, EVP & TREASURER | F 繳稅扣股 | 273 | 24.79 | 7K | 125K | SEC |
| 2025-05-01 | 05-02 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 24.08 | 12K | 73.4K | SEC |
| 2025-04-01 | 04-02 | Petersen Floyd F. | Director | S 公開市場賣出(10b5-1) | 500 | 28.38 | 14K | 73.9K | SEC |
| 2025-03-17 | 03-18 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 7.2K | 27.69 | 200K | 1.2M | SEC |
| 2025-03-17 | 03-18 | Liawatidewi Yakob | EVP CORP ADMIN CENTER | F 繳稅扣股 | 1.7K | 27.69 | 48K | 90.9K | SEC |
| 2025-03-17 | 03-18 | PETERS WILLIAM J | CFO, EVP & TREASURER | F 繳稅扣股 | 3.0K | 27.69 | 83K | 125K | SEC |
| 2025-03-17 | 03-18 | Luo Mary Z. | COO, Chief Scientist, Chairman | F 繳稅扣股 | 16.1K | 27.69 | 447K | 2.6M | SEC |
| 2025-03-17 | 03-18 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 16.1K | 27.69 | 447K | 2.6M | SEC |
| 2025-03-17 | 03-18 | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | F 繳稅扣股 | 7.2K | 27.69 | 200K | 1.2M | SEC |
機構持股(13F) 管理規模 1 億美元以上的機構,每季末後 45 天內申報 · 最新 2026-06-30
前 25 大持有機構季末市值 · 與前一季股數比較
| 機構 | 持股 | 季末市值 | 股數季變化 | 動作 |
|---|---|---|---|---|
| BlackRock, Inc. | 5.2M | 105M | −196K (-4%) | 減碼 |
| DIMENSIONAL FUND ADVISORS LP | 2.3M | 46.5M | +277K (+14%) | 加碼 |
| STATE STREET CORP | 1.6M | 33.1M | +34.6K (+2%) | 加碼 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | 29.9M | −61.7K (-4%) | 減碼 |
| AMERICAN CENTURY COMPANIES INC | 1.2M | 23.7M | +159K (+16%) | 加碼 |
| MARSHALL WACE, LLP | 1.1M | 21.5M | +40.7K (+4%) | 加碼 |
| GEODE CAPITAL MANAGEMENT, LLC | 970K | 19.6M | −6.8K (-1%) | 減碼 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 949K | 19.2M | −446K (-32%) | 減碼 |
| 德劭 D. E. Shaw & Co., Inc. | 887K | 17.9M | +222K (+33%) | 加碼 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 810K | 16.3M | +21.8K (+3%) | 加碼 |
| 文藝復興 RENAISSANCE TECHNOLOGIES LLC | 525K | 10.6M | −28.8K (-5%) | 減碼 |
| GOLDMAN SACHS GROUP INC | 505K | 10.2M | +176K (+53%) | 加碼 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | 437K | 8.8M | −15.5K (-3%) | 減碼 |
| MORGAN STANLEY | 435K | 8.8M | +14.5K (+3%) | 加碼 |
| UBS Group AG | 393K | 7.9M | −27.2K (-6%) | 減碼 |
| DENALI ADVISORS LLC | 376K | 7.6M | +110K (+41%) | 加碼 |
| NORTHERN TRUST CORP | 371K | 7.5M | −1.3K (-0%) | 減碼 |
| Bridge City Capital, LLC | 339K | 6.8M | +3.6K (+1%) | 加碼 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 310K | 6.3M | −10.9K (-3%) | 減碼 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 299K | 6.0M | −31.5K (-10%) | 減碼 |
| ROYCE & ASSOCIATES LP | 295K | 5.9M | −111K (-27%) | 減碼 |
| Two Sigma TWO SIGMA INVESTMENTS, LP | 248K | 5.0M | +110K (+80%) | 加碼 |
| FIRST TRUST ADVISORS LP | 247K | 5.0M | +96.4K (+64%) | 加碼 |
| Bank of New York Mellon Corp | 232K | 4.7M | −10.9K (-4%) | 減碼 |
| VANGUARD FIDUCIARY TRUST CO | 224K | 4.5M | −6.6K (-3%) | 減碼 |
持有機構數近 12 季
每季 13F 申報中持有本股的機構家數;綠柱 = 比上季少。機構數是「有多少人在船上」,不是「買了多少」。
| 持有機構 · 季變化 | 211 -4 |
|---|---|
| 新進 / 出清 / 加碼 / 減碼 | 33 / 37 / 61 / 73 |
| 機構合計持股 · 佔流通股 | 28.3M · 66.6% |
| 合計季末市值 | 540M |
13F 只申報多頭部位(含可轉債與選擇權,選擇權這裡已排除),不申報放空,也不申報 1 億美元以下的機構。同一集團多個申報主體會各算一家。
放空餘額 FINRA 每月兩次(15 日與月底結算)· 最新 2026-08-31
空單佔流通股近 13 個月
FINRA 每月兩次結算的空單餘額佔流通股數的比例,近 13 個月。滑到柱子看股數與回補天數。
最新一期
| 空單股數 | 5.1M |
|---|---|
| 與上期比 | -4.7% |
| 佔流通股數 | 12.07% |
| 日均成交量 | 334K |
| 回補天數 | 15.4 天 |
空單佔比 10% 以上算高、20% 以上算很高(這是通行的說法,不是本站的判斷)。回補天數 = 空單 ÷ 日均量,天數愈長,空方要出場時愈容易推升股價。
放空餘額是「有人借股票賣掉還沒還」的存量,不代表看空的人正在加碼;避險基金做多空配對時也會產生空單。
| 結算日 | 空單股數 | 與上期比 | 佔流通股 | 日均量 | 回補天數 |
|---|---|---|---|---|---|
| 2026-08-31 | 5.1M | -4.7% | 12.07% | 334K | 15.4 |
| 2026-08-14 | 5.4M | +9.3% | 12.66% | 541K | 10.0 |
| 2026-07-31 | 4.9M | +18.1% | 11.59% | 415K | 11.9 |
| 2026-07-15 | 4.2M | +8.6% | 9.81% | 374K | 11.2 |
| 2026-06-30 | 3.8M | +1.2% | 9.04% | 734K | 5.2 |
| 2026-06-15 | 3.8M | +1.4% | 8.93% | 533K | 7.1 |
| 2026-05-29 | 3.7M | -0.9% | 8.81% | 793K | 4.7 |
| 2026-05-15 | 3.8M | +5.4% | 8.89% | 802K | 4.7 |
| 2026-04-30 | 3.6M | -8.1% | 8.43% | 412K | 8.7 |
| 2026-04-15 | 3.9M | +10.7% | 9.18% | 452K | 8.6 |
| 2026-03-31 | 3.5M | -5.6% | 8.29% | 527K | 6.7 |
| 2026-03-13 | 3.7M | +2.2% | 8.79% | 726K | 5.2 |
| 2026-02-27 | 3.7M | -1.6% | 8.60% | 597K | 6.1 |
| 2026-02-13 | 3.7M | -3.2% | 8.74% | 333K | 11.2 |
| 2026-01-30 | 3.8M | +1.1% | 9.04% | 256K | 15.0 |
| 2026-01-15 | 3.8M | -7.2% | 8.94% | 384K | 9.9 |
| 2025-12-31 | 4.1M | +2.9% | 9.63% | 359K | 11.4 |
| 2025-12-15 | 4.0M | +19.1% | 9.36% | 375K | 10.6 |
| 2025-11-28 | 3.3M | -6.9% | 7.86% | 386K | 8.7 |
| 2025-11-14 | 3.6M | -14.4% | 8.44% | 546K | 6.6 |
| 2025-10-31 | 4.2M | -2.3% | 9.86% | 361K | 11.6 |
| 2025-10-15 | 4.3M | +7.9% | 10.09% | 360K | 11.9 |
| 2025-09-30 | 4.0M | -3.7% | 9.35% | 546K | 7.3 |
| 2025-09-15 | 4.1M | -0.6% | 9.71% | 412K | 10.0 |
| 2025-08-29 | 4.2M | +0.5% | 9.77% | 407K | 10.2 |
| 2025-08-15 | 4.1M | +2.7% | 9.72% | 811K | 5.1 |