INSM Insider Trading Activity and SEC Form 4 Filings
Trump's trades in INSM
From his financial disclosures
-
0 purchases
$1K+
1 sale
Sale
Apr 28, 2026
Reported 64d later
$1K - $15K
Many orders in these accounts are placed by the account manager.
INSM insider trading summary
Over the past 12 months, insiders at INSMED Inc (INSM) reported 147 sales worth $156.0M by 10 insiders and no open-market purchases on SEC Form 4. Net insider selling was $156.0M.
Latest INSM insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Sep 9, 2026 | David R Brennan | Director | Sell | $3.1M (25,000 @ $124.00) |
| Aug 17, 2026 | Melvin Md Sharoky | Director | Sell | $638K (5,000 @ $127.53) |
| Aug 10, 2026 | Roger Adsett | Chief Operating Officer | Sell | $32.0M (239,850 @ $133.27) |
| Aug 6, 2026 | Martina M.D. Flammer | Chief Medical Officer | Sell | $1.1M (8,895 @ $127.00) |
| Aug 6, 2026 | Martina M.D. Flammer | Chief Medical Officer | Sell | $2.4M (18,278 @ $129.40) |
| Jul 23, 2026 | William Lewis | Chair and CEO | Sell | $510K (4,828 @ $105.62) |
| Jul 23, 2026 | William Lewis | Chair and CEO | Sell | $625K (5,872 @ $106.43) |
| Jul 9, 2026 | William Lewis | Chair and CEO | Sell | $583K (5,005 @ $116.55) |
| Jul 9, 2026 | William Lewis | Chair and CEO | Sell | $275K (2,335 @ $117.62) |
| Jul 9, 2026 | William Lewis | Chair and CEO | Sell | $398K (3,359 @ $118.52) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.