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Insider selling
William Lewis sold $1.1M of INSMED Inc (INSM) stock
William Lewis, Chair and CEO of INSMED Inc (INSM), sold 10,700 shares of INSM stock worth $1.1M, per an SEC Form 4 filed Jul 24, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Jul 23, 2026, 1 day before it was made public.
INSM has moved +12.7% since the trade date, from $107.41 to $121.00 (Sep 21, 2026 close).
- Traded
- Jul 23, 2026
- Disclosed
- Jul 24, 2026
- Filing delay
- 1 day
- Price since
- +12.7%
- Role
- Chair and CEO
- Source
- SEC Form 4
More INSM insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.