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Insmed (INSM) insider trading in the last 6 months

6 insiders sold $40.8M. No buys.

Filings: 11, in the last 6 months
Quality Score: 5, Below Average

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Form 4 filings, newest first

SellDavid R. Brennan$3.1MDirectorat $124.00 on Sep 9, filed Sep 11
SellMelvin Sharoky$638KDirectorat $127.53 on Aug 17, filed Aug 19
SellRoger Adsett$32MChief Operating Officerat $133.27 on Aug 10, filed Aug 12

From SEC Form 4s, the newest filed Sep 11, 2026 · Insiders have 2 business days to file a trade

8 more filings on INSM in the last 6 months, for Pro members. See them free →

Pro members see every filing on INSM with what each insider bought or sold and at what price, and can turn on an optional alert when an insider buys.

Who files at Insmed

Insider trades by person

Tested. Our top-scored stocks returned 2.2x the average stock over the next month. Reconstructed after the fact; recorded live since Sep 9, 2026. How we tested it

Questions about INSM's insider trades

As of Nov 9, 2026: Insmed (INSM) has 11 insider filings on record in the last 6 months, the newest filed Sep 11, 2026. Its Quality Score is 5 (Below Average). Scores as of 8:53 AM ET, 15 minutes behind.

Are INSM insiders buying or selling?

6 insiders sold $40.8M across 11 filings in the last 6 months. No open-⁠market buys on record. The newest filing: David R. Brennan, Director, sold $3.1M on Sep 9, 2026.

Who are INSM's biggest insider sellers?

By the dollars of their sales in the last 6 months: Roger Adsett (Chief Operating Officer), 3 sales; David R. Brennan (Director), 1 sale; William Lewis (Chair and CEO), 1 sale. 6 insiders sold in all.

When did an INSM insider last buy?

No INSM insider bought shares on the open market in the last 6 months, as filed on Form 4. The newest filing is a sale by David R. Brennan on Sep 9, 2026.

Insmed's page has its Quality Score, its chart, and its earnings. More in Healthcare and Pharma.

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Shares insiders bought or sold themselves, as filed on Form 4. Grants, option exercises, shares withheld for tax, and 10b5-1 plan sales are left out.

Our top-scored stocks' record: Oct 2021 to Sep 2026, before costs. Recorded live since Sep 9, 2026.

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