Amphastar Pharmaceuticals, Inc.

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Amphastar Pharmaceuticals, Inc.

$AMPH

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Trade Date Insider Insider Title Security Type Execution Date Exercise Date Expiration Date Share Price Quantity Shares Owned Shares Code Transaction Code Swap Under SEC Title Under Sec Shares Nature of Ownership SEC Link
2020-07-06William J PetersEmployee Stock Option (right to buy)-2026-03-17$0.0010,00039,800DM0Common Stock10,000DForm 4
2020-05-14Michael A ZasloffStock Option (right to buy)-2020-05-27$0.0014,83222,950DM0Common Stock14,832DForm 4
2020-05-15Michael A ZasloffStock Option (right to buy)-2020-05-27$0.0022,9500DM0Common Stock22,950DForm 4
2020-05-14Floyd F. PetersenStock Option (right to buy)-2020-05-27$0.005,00042,682DM0Common Stock5,000DForm 4
2020-05-15Floyd F. PetersenStock Option (right to buy)-2020-05-27$0.0042,6820DM0Common Stock42,682DForm 4
2020-05-20Howard LeeStock Option (right to buy)-2020-05-27$0.0017,78230,000DM0Common Stock17,782DForm 4
2020-05-21Howard LeeStock Option (right to buy)-2020-05-27$0.0010,00020,000DM0Common Stock10,000DForm 4
2020-05-22Howard LeeStock Option (right to buy)-2020-05-27$0.0010,00010,000DM0Common Stock10,000DForm 4
2020-05-26Howard LeeStock Option (right to buy)-2020-05-27$0.0010,0000DM0Common Stock10,000DForm 4
2020-05-27Richard KooStock Option (right to buy)-2020-05-27$0.0047,7820DM0Common Stock47,782DForm 4
2020-05-12Michael A ZasloffStock Option (right to buy)-2020-05-27$0.0010,00037,782DM0Common Stock10,000DForm 4
2020-05-12Richard K PrinsStock Option (right to buy)-2020-05-27$0.0030,2820DM0Common Stock30,282DForm 4
2020-05-12Floyd F. PetersenStock Option (right to buy)-2020-05-27$0.0010047,682DM0Common Stock100DForm 4
2020-06-03Rong ZhouEmployee Stock Option (right to buy)-2021-03-08$0.0011,0828,918DM0Common Stock11,082DForm 4
2020-06-04Rong ZhouEmployee Stock Option (right to buy)-2021-03-08$0.008,9180DM0Common Stock8,918DForm 4
2020-06-04Yakob LiawatidewiEmployee Stock Option (right to buy)-2030-06-04$0.007,0917,091AA0Common Stock7,091DForm 4
2020-06-08Michael A ZasloffStock Option (right to buy)-2028-06-08$0.0016,00416,004AA0Common Stock16,004DForm 4
2020-06-08Richard K PrinsStock Option (right to buy)-2028-06-08$0.0016,00416,004AA0Common Stock16,004DForm 4
2020-06-08Diane G. GerstStock Option (right to buy)-2028-06-08$0.008,0038,003AA0Common Stock8,003DForm 4
2020-06-08Richard KooStock Option (right to buy)-2028-06-08$0.0016,00416,004AA0Common Stock16,004DForm 4
2020-06-08Howard LeeStock Option (right to buy)-2028-06-08$0.0016,00416,004AA0Common Stock16,004DForm 4
2020-06-08David MarisStock Option (right to buy)-2028-06-08$0.0016,00416,004AA0Common Stock16,004DForm 4
2020-06-08Floyd F. PetersenStock Option (right to buy)-2028-06-08$0.0016,00416,004AA0Common Stock16,004DForm 4
2020-06-09Yakob LiawatidewiEmployee Stock Option (right to buy)-2023-07-30$0.0016,00016,000DM0Common Stock16,000DForm 4
2020-07-20Yakob LiawatidewiEmployee Stock Option (right to buy)-2026-03-17$0.004,18625,615DM0Common Stock4,186DForm 4
2020-07-21Yakob LiawatidewiEmployee Stock Option (right to buy)-2026-03-17$0.005,97819,637DM0Common Stock5,978DForm 4
2021-03-17William J PetersEmployee Stock Option (right to buy)2031-03-17$0.0078,83378,833AA0Common Stock78,833DForm 4
2021-03-17Rong ZhouEmployee Stock Option (right to buy)2031-03-17$0.0051,62151,621AA0Common Stock51,621DForm 4
2021-03-17Yakob LiawatidewiEmployee Stock Option (right to buy)2031-03-17$0.0045,42045,420AA0Common Stock45,420DForm 4
2021-03-17Jack Y. ZhangEmployee Stock Option (right to buy)2031-03-17$0.00298,688298,688AA0Common Stock298,688DForm 4
2021-03-17Jack Y. ZhangEmployee Stock Option (right to buy)2031-03-17$0.00133,585133,585AA0Common Stock133,585IForm 4
2021-05-11Richard K PrinsStock Option (right to buy)2021-06-09$0.0015,82710,000DM0Common Stock15,827DForm 4
2021-05-11Yakob LiawatidewiEmployee Stock Option (right to buy)2026-03-17$0.0010,0009,637DM0Common Stock10,000DForm 4
2021-05-13Michael A ZasloffStock Option (right to buy)2021-06-09$0.0025,8270DM0Common Stock25,827DForm 4
2021-05-13Rong ZhouEmployee Stock Option (right to buy)2021-12-22$0.0070019,300DM0Common Stock700DForm 4
2021-05-14Rong ZhouEmployee Stock Option (right to buy)2021-12-22$0.0011,1208,180DM0Common Stock11,120DForm 4
2021-05-17Yakob LiawatidewiEmpoyee Stock Option (right to buy)2026-03-17$0.009,6370DM0Common Stock9,637DForm 4
2021-05-19William J PetersEmployee Stock Option (right to buy)2031-05-19$0.007,2097,209AA0Common Stock7,209DForm 4
2021-05-20Howard LeeStock Option (right to buy)2021-06-09$0.0010,00015,827DM0Common Stock10,000DForm 4
2021-06-01Richard KooStock Option (right to buy)2021-06-09$0.0025,8270DM0Common Stock25,827DForm 4
2021-06-03Floyd F. PetersenStock option (right to buy)2021-06-09$0.0010,00015,827DM0Common Stock10,000DForm 4
2021-06-07Michael A ZasloffStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-04Richard K PrinsStock Option (right to buy)2021-06-09$0.005,0005,000DM0Common Stock5,000DForm 4
2021-06-07Richard K PrinsStock Option (right to buy)2021-06-09$0.005,0000DM0Common Stock5,000DForm 4
2021-06-07Richard K PrinsStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-07Gayle DeflinStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-07Diane G. GerstStock Option (right to buy)2029-06-07$0.008,5928,592AA0Common Stock8,592DForm 4
2021-06-07Richard KooStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-07Howard LeeStock Option (right to buy)2021-06-09$0.007,8278,000DD0Common Stock7,827DForm 4
2021-06-07Howard LeeStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-08Howard LeeStock Option (right to buy)2021-06-09$0.008,0000DD0Common Stock8,000DForm 4
2021-06-07David MarisStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-07Floyd F. PetersenStock Option (right to buy)2021-06-09$0.0015,8270DM0Common Stock15,827DForm 4
2021-06-07Floyd F. PetersenStock Option (right to buy)2029-06-07$0.0017,18217,182AA0Common Stock17,182DForm 4
2021-06-08Rong ZhouEmployee Stock Option (right to buy)2021-12-22$0.008,1800DM0Common Stock8,180DForm 4
2021-07-07William J PetersEmployee Stock Option (right to buy)2026-03-17$0.0010,00029,800DM0Common Stock10,000DForm 4
2021-07-15Yakob LiawatidewiEmployee Stock Option (right to buy)2027-03-16$0.0023,3520DM0Common Stock23,352DForm 4
2021-07-15Yakob LiawatidewiEmployee Stock Option (right to buy)2030-03-16$0.007,67436,176DM0Common Stock7,674DForm 4
2021-07-20Rong ZhouEmployee Stock Option (right to buy)2022-11-07$0.005,18719,813DM0Common Stock5,187DForm 4
2021-07-26Rong ZhouEmployee Stock Option (right to buy)2022-11-07$0.006,00013,813DM0Common Stock6,000DForm 4
2021-08-02Yakob LiawatidewiEmployee Stock Option (right to buy)2025-03-26$0.008,9320DM0Common Stock8,932DForm 4
2021-08-02Rong ZhouEmployee Stock Option (right to buy)2022-11-07$0.006,0007,813DM0Common Stock6,000DForm 4