Michael A. Zasloff

Director, Amphastar Pharmaceuticals, Inc.

Companies

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

As of each latest filing. The line shows shares held over time.

Jun 1, 2026Granted 8,143 shares of Amphastar Pharmaceuticals, Inc.²
Jun 2, 2025Granted 5,122 shares of Amphastar Pharmaceuticals, Inc.³
Jun 3, 2024Granted 3,076 shares of Amphastar Pharmaceuticals, Inc.⁴
Mar 5, 2024Sold 3,111 shares at $47.53 of Amphastar Pharmaceuticals, Inc.⁵
Mar 5, 2024Sold 9,389 shares at $47.06 of Amphastar Pharmaceuticals, Inc.⁵
Aug 15, 2023Sold 12,759 shares at $57.22 of Amphastar Pharmaceuticals, Inc.⁶
Jun 5, 2023Granted 2,716 shares of Amphastar Pharmaceuticals, Inc.⁷
May 15, 2023Sold 7,500 shares at $42.18 of Amphastar Pharmaceuticals, Inc.⁸
Jun 10, 2022Granted 4,163 shares of Amphastar Pharmaceuticals, Inc.⁹
May 16, 2022Sold 10,291 shares at $35.61 of Amphastar Pharmaceuticals, Inc.¹⁰
May 16, 2022Exercised options 10,291 shares at $17.11 of Amphastar Pharmaceuticals, Inc.¹⁰
Mar 16, 2022Sold 10,000 shares at $33.71 of Amphastar Pharmaceuticals, Inc.¹¹
Mar 16, 2022Exercised options 10,000 shares at $17.11 of Amphastar Pharmaceuticals, Inc.¹¹

The numbers on this page point here. Each one links to the record it came from.