InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (3 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
3
T+90 hit rate
0%
T+90 mean return
-5.7%
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the detailed record of transactions filed by ZASLOFF MICHAEL A, Director. Insider active across 2 companies, notably Amphastar Pharmaceuticals, Inc.. Aggregated, 13 filings have been recorded. Breakdown: 0 buy · 3 sells. Total volume traded: €1.4m. History available since 13 May 2021. The latest transaction was filed on 1 June 2026 (Attribution). Regulator: SEC (Form 4). The full history is openly available.
Declarations13 total
8,143 shares0Common StockSEC:0001033511-26-000003:0
3,076 shares0Common StockSEC:0001415889-24-015629:0
9,389 shares@ US$47.062623.7% of flowCommon StockSEC:0001415889-24-007093:0
12,759 shares@ US$57.216539.0% of flowCommon StockSEC:0001104659-23-092759:0
2,716 shares0Common StockSEC:0001104659-23-068976:0
7,500 shares@ US$42.17816.9% of flowCommon StockSEC:0001104659-23-061529:0
4,163 shares0Common StockSEC:0001104659-22-071083:0
10,291 shares@ US$17.110.014% mcap25.0% of flowCommon StockSEC:0001104659-22-062177:0
10,000 shares@ US$17.110.013% mcap23.1% of flowCommon StockSEC:0001104659-22-035106:0
6,019 shares0Common StockSEC:0001104659-21-078416:0
6,019 shares0Common StockSEC:0001104659-21-078416
25,827 shares@ US$16.43100.0% of flowCommon StockSEC:0001104659-21-067096
25,827 shares@ US$16.430.029% mcap52.0% of flowCommon StockSEC:0001104659-21-067096:0
13 of 13 declarations
About ZASLOFF MICHAEL A
Michael A. Zasloff is a Director at Amphastar Pharmaceuticals, Inc. He is involved in overseeing the company's operations and formulating strategies for its growth. With expertise in the pharmaceutical sector, Michael brings valuable knowledge to the board. He is dedicated to achieving the company's objectives and improving its performance.
