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Equity · Healthcare

INSM

NASDAQ

Insmed Incorporated

$126.19 −0.40% vs prior close Finazon · prior-day close, indicative (IEX-derived, not the official close) · Sep 4, 2026
Price · Chart
Our own end-of-day closes 36 sessions
$140 $80 2 Jul 4 Sep

The line runs $111.59 on 2 July through $126.19 on 4 September, on a scale from $80 to $140. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView

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 36 sessions over that window: $111.59 on 2 July 2026 through $126.19 on 4 September 2026.

Market cap $27.6B
52-week range $91.87 – $212
Avg volume 459.7K

Finazon · prior-day close, indicative (IEX-derived, not the official close) · valuation computed from SEC EDGAR filings · as of Sep 4, 2026

INSM insider trades

SEC Form 4 · last 90 days · newest reported trade 9 Sep 2026
Open-market buys 0
Open-market sells 7
Net sold $42.94M
Non-trade filings 5
Date Insider Type Shares Value
09 Sep 2026 Brennan David R Director Sell 25,000 $3.10M
17 Aug 2026 SHAROKY MELVIN MD Director Sell 5,000 $638K
10 Aug 2026 Adsett Roger Chief Operating Officer Sell 239,850 $31.96M
06 Aug 2026 Flammer Martina M.D. Chief Medical Officer Sell 27,173 $3.49M
23 Jul 2026 Lewis William Chair and CEO Sell 10,700 $1.13M
09 Jul 2026 Lewis William Chair and CEO Sell 10,699 $1.26M
06 Jul 2026 Flammer Martina M.D. Chief Medical Officer Sell 12,302 $1.35M

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.

Date Insider Type Shares Value
10 Aug 2026 Adsett Roger Chief Operating Officer Option exercise 239,850 $4.91M
06 Aug 2026 Flammer Martina M.D. Chief Medical Officer Option exercise 27,173 $576K
23 Jul 2026 Lewis William Chair and CEO Option exercise 10,700 $267K
09 Jul 2026 Lewis William Chair and CEO Option exercise 10,699 $267K
06 Jul 2026 Flammer Martina M.D. Chief Medical Officer Option exercise 12,302 $317K

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.

Figure Reported Period
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 30 Jun 2026 at period end
Total equity $757.5M 30 Jun 2026 at period end

Source: SEC EDGAR XBRL company facts · latest period ended 30 Jun 2026

INSM earnings

SEC EDGAR
Date Period EPS Revenue
30 Jun 2026 Q2 2026 $-0.06 —
31 Mar 2026 Q1 2026 $-0.76 —
31 Dec 2025 FY 2025 $-6.42 —
30 Sep 2025 Q3 2025 $-1.75 —
30 Jun 2025 Q2 2025 $-1.70 —
31 Mar 2025 Q1 2025 $-1.42 —
31 Dec 2024 FY 2024 $-5.57 —
30 Sep 2024 Q3 2024 $-1.27 —

Next report no date announced in SEC filings yet

Reported figures & scheduled dates · SEC EDGAR filings

INSM institutional holders

SEC Form 13F

14 of the 45 institutional funds we track reported a INSM position for the quarter ended 30 Jun 2026 — a combined $3.0B; the latest of those filings landed 02 Sep 2026.

Fund Action Shares Value
Baker Bros. Advisors Held (±25%) +18.5% shares 8,796,111 $937.8M
D. E. Shaw & Co. Held (±25%) +4.5% shares 5,877,959 $626.7M
Citadel Advisors Held (±25%) +17.2% shares 2,556,973 $272.6M
Maverick Capital New position 2,150,762 $229.3M
Millennium Management Added +76.9% shares 2,048,005 $218.4M
Duquesne Family Office Held (±25%) +23.4% shares 1,424,690 $151.9M
Balyasny Asset Management Added +498.3% shares 1,326,430 $141.4M
Two Sigma Investments Added +424.1% shares 1,242,222 $132.4M
AQR Capital Management Held (±25%) −9.3% shares 612,832 $65.3M
Point72 Asset Management New position 536,997 $57.3M

Showing the 10 largest of 14 reported positions. The figures above count all of them.

Source: SEC EDGAR 13F filings

INSM fails-to-deliver

SEC CNS data

On 24 Aug 2026, 18,985 shares of INSM failed to deliver (about $2.4M).

Settlement date Shares failed Notional % of shares out
24 Aug 2026 18,985 $2.4M 0.009%

Source: SEC fails-to-deliver (CNS) data

Congressional trades in INSM

STOCK Act disclosures

The most recent congressional trade disclosed in INSM is a sale by Josh Gottheimer (house, NJ), dated 10 Jun 2026.

Date Member Type Amount
10 Jun 2026 filed 07 Jul 2026 Josh Gottheimer house · Democrat–NJ Sale $1K–$15K

Source: U.S. House of Representatives financial disclosures