AlphaYouRZ
Insider selling
Rong Zhou sold $239K of Amphastar Pharmaceuticals, Inc. (AMPH) stock
Rong Zhou, Senior EVP, Production Center of Amphastar Pharmaceuticals, Inc. (AMPH), sold 10,000 shares of AMPH stock worth $239K, per an SEC Form 4 filed Sep 17, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Sep 16, 2026, 1 day before it was made public.
AMPH has moved +2.2% since the trade date, from $23.95 to $24.48 (Sep 21, 2026 close).
- Traded
- Sep 16, 2026
- Disclosed
- Sep 17, 2026
- Filing delay
- 1 day
- Price since
- +2.2%
- Role
- Senior EVP, Production Center
- Source
- SEC Form 4
More AMPH insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.