INSMED Inc (INSM) has 10 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 3 sales totalling $3.9M. Most recent filing: Sept. 11, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Sept. 11, 2026 filed Sept. 9, 2026 | Brennan David R Director | −$3,100,000 | 25,000 | −39% | No | |
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| Aug. 19, 2026 filed Aug. 17, 2026 | SHAROKY MELVIN MD Director | −$637,650 | 5,000 | −100% | No | |
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| Aug. 12, 2026 filed Aug. 10, 2026 | Adsett Roger Chief Operating Officer | $28,686,060 | 719,550 | — | No | |
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| Aug. 7, 2026 filed Aug. 6, 2026 | Flammer Martina M.D. Chief Medical Officer | $2,979,910 | 81,519 | 0% | Yes | |
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| July 24, 2026 filed July 23, 2026 | Lewis William Chair and CEO | $808,968 | 32,100 | — | Yes | |
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Showing the 5 most recent of 10 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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