Zasloff Michael A (CIK 0001033511)

Latest company ownership

Shares held
11,402
Last filed at
Jun 4, 2025
Confidence Score
50.0
2025Q4
Confidence Score History
2014Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 5, 2024 Mar 6, 2024 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -12,500 -36.95% ✗ $589.7K
Aug 15, 2023 Aug 16, 2023 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -12,759 -27.39% ✗ $730K
May 15, 2023 May 16, 2023 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -7,500 -14.60% ✗ $316.3K
May 16, 2022 May 17, 2022 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -10,291 -17.90% ✗ $366.5K
Mar 16, 2022 Mar 17, 2022 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -10,000 -17.48% ✗ $337.1K
May 13, 2021 May 14, 2021 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -25,827 -38.54% ✗ $499.4K
May 14, 2020 May 18, 2020 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -37,782 -34.84% ✗ $680.7K
May 12, 2020 May 14, 2020 Amphastar Pharmaceuticals, Inc. Director Sell 22.5 -10,000 -22.06% ✗ $190K
Nov 14, 2018 Nov 15, 2018 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -29,278 -49.52% ✗ $596.9K
Jun 12, 2018 Jun 13, 2018 Amphastar Pharmaceuticals, Inc. Director Sell 22.5 -15,000 -33.45% ✗ $247.8K
Oct 2, 2017 Oct 3, 2017 Amphastar Pharmaceuticals, Inc. Director Sell 5.0 -63,624 -62.45% ✓ $1.2M
Jun 1, 2017 Jun 1, 2017 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -15,000 -31.64% ✗ $255.2K
Aug 12, 2016 Aug 16, 2016 Amphastar Pharmaceuticals, Inc. Director Sell 20.0 -48,375 -42.74% ✗ $878.1K
Dec 16, 2015 Dec 17, 2015 Amphastar Pharmaceuticals, Inc. Director Sell 7.5 -30,770 -36.89% ✓ $436.9K
Jul 17, 2015 Jul 21, 2015 Amphastar Pharmaceuticals, Inc. Director Sell 15.0 -7,692 -22.61% ✓ $133.9K
Aug 19, 2014 Aug 20, 2014 Amphastar Pharmaceuticals, Inc. Director Buy 91.3 +3,500 24.75% ✗ $35K