The chart above plots the price of INSM over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 54 sessions over that window: $133.00 on 1 May 2026 through $108.29 on 17 July 2026. Finazon · prior-day close.
Market cap$23.5B
52-week range$91.87 – $212.00
Avg volume792.5K
Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Jul 29, 2026
INSM insider trades
SEC Form 4 · last 90 days · newest reported trade 23 Jul 2026
Open-market buys0
Open-market sells22
Net sold$20.63M
Non-trade filings14
DateInsiderTypeSharesValue
23 Jul 2026Lewis WilliamChair and CEOSell10,700$1.13M
09 Jul 2026Lewis WilliamChair and CEOSell10,699$1.26M
06 Jul 2026Flammer Martina M.D.Chief Medical OfficerSell12,302$1.35M
25 Jun 2026Lewis WilliamChair and CEOSell21,398$2.21M
22 Jun 2026Smith Michael AlexanderChief Legal OfficerSell1,806$173K
08 Jun 2026Lewis WilliamChair and CEOSell6,515$613K
05 Jun 2026Flammer Martina M.D.Chief Medical OfficerSell1,858$193K
Showing the 12 most recent of 36 filings in this window. The figures above count all of them.
Compensation mechanics (5 filings)
Compensation mechanics
Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.
DateInsiderTypeSharesValue
23 Jul 2026Lewis WilliamChair and CEOOption exercise10,700$267K
09 Jul 2026Lewis WilliamChair and CEOOption exercise10,699$267K
06 Jul 2026Flammer Martina M.D.Chief Medical OfficerOption exercise12,302$317K
25 Jun 2026Lewis WilliamChair and CEOOption exercise21,398$534K
23 Jun 2026Butera SamueleSVP, GM, Global RespiratoryAward7,342
INSM reported financials
SEC EDGAR XBRL
INSM reported revenue of $606.4M for the fiscal year ended 31 Dec 2025. Net income over the same period was −$1.3B.
FigureReportedPeriod
Revenue
$606.4M
31 Dec 2025 fiscal year
Net income
−$1.3B
31 Dec 2025 fiscal year
Diluted EPS
−$6.42
31 Dec 2025 fiscal year
Total assets
$2.1B
31 Mar 2026 at period end
Total equity
$704.9M
31 Mar 2026 at period end
Source: SEC EDGAR XBRL company facts · latest period ended 31 Mar 2026
INSM earnings
SEC EDGAR
DatePeriodEPSRevenue
31 Mar 2026Q1 2026$-0.76—
31 Dec 2025FY 2025$-6.42—
30 Sep 2025Q3 2025$-1.75—
30 Jun 2025Q2 2025$-1.70—
Reported figures & scheduled dates · SEC EDGAR filings
INSM institutional holders
SEC Form 13F
12 of the 45 institutional funds we track reported a INSM position for the quarter ended 31 Mar 2026 — a combined $3.2B; the latest of those filings landed 15 May 2026.