AlphaYouMH
Insider selling
Michael Hsing sold $40.3M of Monolithic Power Systems, Inc. (MPWR) stock
Michael Hsing, CEO of Monolithic Power Systems, Inc. (MPWR), sold 30,000 shares of MPWR stock worth $40.3M, per an SEC Form 4 filed Sep 30, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Sep 28, 2026, 2 days before it was made public.
MPWR has moved +0.4% since the trade date, from $1351.20 to $1355.99 (Sep 29, 2026 close).
- Traded
- Sep 28, 2026
- Disclosed
- Sep 30, 2026
- Filing delay
- 2 days
- Price since
- +0.4%
- Role
- CEO
- Source
- SEC Form 4
More MPWR insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.