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Insider selling
David R Brennan sold $3.1M of INSMED Inc (INSM) stock
David R Brennan, Dir of INSMED Inc (INSM), sold 25,000 shares of INSM stock worth $3.1M, per an SEC Form 4 filed Sep 11, 2026.
It was an open-market sale.
The trade happened on Sep 9, 2026, 2 days before it was made public.
INSM has moved -6.2% since the trade date, from $128.80 to $120.82 (Sep 22, 2026 close).
- Traded
- Sep 9, 2026
- Disclosed
- Sep 11, 2026
- Filing delay
- 2 days
- Price since
- -6.2%
- Role
- Dir
- 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.