Stocks · Health care · Pharmaceutical Preparations

INSMED Inc

INSM Clue Score44
United States Fiscal year ends December CIK 0001104506
$100.60 +0.12% Close, 9 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
100.60 on 9 Oct 2026
211 152 92 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $163.94 14 Oct 2025 $161.38 15 Oct 2025 $163.54 16 Oct 2025 $163.19 17 Oct 2025 $165.76 20 Oct 2025 $167.91 21 Oct 2025 $165.31 22 Oct 2025 $160.40 23 Oct 2025 $160.12 24 Oct 2025 $159.66 27 Oct 2025 $164.02 28 Oct 2025 $165.29 29 Oct 2025 $166.95 30 Oct 2025 $194.22 31 Oct 2025 $189.60 3 Nov 2025 $186.23 4 Nov 2025 $182.77 5 Nov 2025 $186.88 6 Nov 2025 $185.68 7 Nov 2025 $189.70 10 Nov 2025 $191.92 11 Nov 2025 $193.69 12 Nov 2025 $194.39 13 Nov 2025 $190.96 14 Nov 2025 $193.22 17 Nov 2025 $197.40 18 Nov 2025 $201.62 19 Nov 2025 $203.56 20 Nov 2025 $199.64 21 Nov 2025 $198.76 24 Nov 2025 $206.93 25 Nov 2025 $209.02 26 Nov 2025 $204.51 28 Nov 2025 $207.77 1 Dec 2025 $211.41 2 Dec 2025 $206.60 3 Dec 2025 $206.78 4 Dec 2025 $205.04 5 Dec 2025 $204.00 8 Dec 2025 $196.55 9 Dec 2025 $194.17 10 Dec 2025 $189.85 11 Dec 2025 $195.24 12 Dec 2025 $197.01 15 Dec 2025 $196.92 16 Dec 2025 $200.67 17 Dec 2025 $198.46 18 Dec 2025 $166.55 19 Dec 2025 $174.84 22 Dec 2025 $175.76 23 Dec 2025 $176.77 24 Dec 2025 $177.42 26 Dec 2025 $177.88 29 Dec 2025 $176.34 30 Dec 2025 $174.09 31 Dec 2025 $174.04 2 Jan 2026 $177.12 5 Jan 2026 $175.20 6 Jan 2026 $175.07 7 Jan 2026 $176.00 8 Jan 2026 $170.27 9 Jan 2026 $175.97 12 Jan 2026 $167.72 13 Jan 2026 $163.72 14 Jan 2026 $163.46 15 Jan 2026 $159.27 16 Jan 2026 $161.42 20 Jan 2026 $163.51 21 Jan 2026 $156.32 22 Jan 2026 $160.39 23 Jan 2026 $156.21 26 Jan 2026 $159.72 27 Jan 2026 $162.64 28 Jan 2026 $155.89 29 Jan 2026 $157.82 30 Jan 2026 $156.87 2 Feb 2026 $153.98 3 Feb 2026 $157.16 4 Feb 2026 $152.44 5 Feb 2026 $151.03 6 Feb 2026 $149.86 9 Feb 2026 $149.54 10 Feb 2026 $148.55 11 Feb 2026 $148.43 12 Feb 2026 $146.17 13 Feb 2026 $148.75 17 Feb 2026 $150.52 18 Feb 2026 $151.11 19 Feb 2026 $161.00 20 Feb 2026 $164.91 23 Feb 2026 $159.03 24 Feb 2026 $158.62 25 Feb 2026 $148.61 26 Feb 2026 $150.00 27 Feb 2026 $149.33 2 Mar 2026 $146.32 3 Mar 2026 $147.00 4 Mar 2026 $149.88 5 Mar 2026 $143.57 6 Mar 2026 $140.13 9 Mar 2026 $143.13 10 Mar 2026 $143.85 11 Mar 2026 $139.40 12 Mar 2026 $139.52 13 Mar 2026 $139.50 16 Mar 2026 $144.60 17 Mar 2026 $143.93 18 Mar 2026 $142.70 19 Mar 2026 $144.00 20 Mar 2026 $136.00 23 Mar 2026 $143.98 24 Mar 2026 $139.14 25 Mar 2026 $148.31 26 Mar 2026 $147.60 27 Mar 2026 $145.30 30 Mar 2026 $153.32 31 Mar 2026 $163.52 1 Apr 2026 $164.86 2 Apr 2026 $162.43 6 Apr 2026 $163.81 7 Apr 2026 $163.03 8 Apr 2026 $160.18 9 Apr 2026 $159.59 10 Apr 2026 $154.81 13 Apr 2026 $151.14 14 Apr 2026 $153.40 15 Apr 2026 $146.74 16 Apr 2026 $142.79 17 Apr 2026 $144.48 20 Apr 2026 $142.82 21 Apr 2026 $140.98 22 Apr 2026 $144.48 23 Apr 2026 $143.83 24 Apr 2026 $135.17 27 Apr 2026 $135.98 28 Apr 2026 $134.94 29 Apr 2026 $135.03 30 Apr 2026 $136.33 1 May 2026 $133.26 4 May 2026 $140.01 5 May 2026 $139.44 6 May 2026 $137.09 7 May 2026 $105.00 8 May 2026 $101.35 11 May 2026 $103.89 12 May 2026 $116.00 13 May 2026 $117.99 14 May 2026 $115.62 15 May 2026 $109.14 18 May 2026 $107.15 19 May 2026 $107.41 20 May 2026 $107.91 21 May 2026 $109.53 22 May 2026 $106.24 26 May 2026 $108.87 27 May 2026 $106.40 28 May 2026 $108.37 29 May 2026 $106.91 1 Jun 2026 $106.03 2 Jun 2026 $103.73 3 Jun 2026 $103.86 4 Jun 2026 $104.92 5 Jun 2026 $94.22 8 Jun 2026 $94.17 9 Jun 2026 $99.04 10 Jun 2026 $91.88 11 Jun 2026 $96.72 12 Jun 2026 $97.85 15 Jun 2026 $97.46 16 Jun 2026 $95.52 17 Jun 2026 $98.45 18 Jun 2026 $95.80 22 Jun 2026 $98.61 23 Jun 2026 $102.15 24 Jun 2026 $103.46 25 Jun 2026 $104.47 26 Jun 2026 $103.38 29 Jun 2026 $104.74 30 Jun 2026 $106.62 1 Jul 2026 $107.00 2 Jul 2026 $111.60 6 Jul 2026 $111.54 7 Jul 2026 $112.84 8 Jul 2026 $116.53 9 Jul 2026 $118.26 10 Jul 2026 $115.61 13 Jul 2026 $109.14 14 Jul 2026 $110.11 15 Jul 2026 $109.81 16 Jul 2026 $107.46 17 Jul 2026 $108.32 20 Jul 2026 $107.02 21 Jul 2026 $108.62 22 Jul 2026 $106.64 23 Jul 2026 $107.41 24 Jul 2026 $106.92 27 Jul 2026 $104.73 28 Jul 2026 $104.13 29 Jul 2026 $103.12 30 Jul 2026 $101.49 31 Jul 2026 $98.60 3 Aug 2026 $98.45 4 Aug 2026 $98.75 5 Aug 2026 $99.02 6 Aug 2026 $132.55 7 Aug 2026 $131.10 10 Aug 2026 $134.75 11 Aug 2026 $132.57 12 Aug 2026 $132.28 13 Aug 2026 $126.33 14 Aug 2026 $123.74 17 Aug 2026 $128.32 18 Aug 2026 $128.46 19 Aug 2026 $130.66 20 Aug 2026 $125.08 21 Aug 2026 $125.77 24 Aug 2026 $123.98 25 Aug 2026 $123.89 26 Aug 2026 $124.39 27 Aug 2026 $121.39 28 Aug 2026 $118.54 31 Aug 2026 $121.82 1 Sep 2026 $121.51 2 Sep 2026 $126.63 3 Sep 2026 $126.68 4 Sep 2026 $126.29 8 Sep 2026 $124.89 9 Sep 2026 $128.80 10 Sep 2026 $127.28 11 Sep 2026 $129.41 14 Sep 2026 $125.30 15 Sep 2026 $119.92 16 Sep 2026 $122.58 17 Sep 2026 $123.98 18 Sep 2026 $120.00 21 Sep 2026 $121.00 22 Sep 2026 $120.82 23 Sep 2026 $118.34 24 Sep 2026 $121.55 25 Sep 2026 $117.83 28 Sep 2026 $117.67 29 Sep 2026 $115.63 30 Sep 2026 $114.14 1 Oct 2026 $108.59 2 Oct 2026 $111.12 5 Oct 2026 $103.83 6 Oct 2026 $105.23 7 Oct 2026 $101.74 8 Oct 2026 $100.48 9 Oct 2026 $100.60 Smith Michael Alexander Chief Legal Officer Sold on a plan $4.99M 3 Nov 2025 · at $183.78 · 33.1% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $5.92M 11 Nov 2025 · at $189.68 · 27.3% of stake Schaeffer Orlov S Nicole Chief People Strategy Officer Sold at will $5.82M 12 Nov 2025 · at $194.00 · 45.1% of stake ANDERSON ELIZABETH M Director Sold at will $1.96M 14 Nov 2025 · at $195.87 · 13.6% of stake LEE LEO Director Sold at will $14.69M 17 Nov 2025 · at $195.90 · 57.8% of stake ANDERSON ELIZABETH M Director Sold at will $1.02M 24 Nov 2025 · at $204.58 · 7.8% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $1.84M 1 Dec 2025 · at $206.98 · 9.7% of stake Lewis William Chair and CEO Sold on a plan $2.20M 4 Dec 2025 · at $205.62 · 3.4% of stake SHAROKY MELVIN MD Director Sold at will $4.10M 5 Dec 2025 · at $205.01 · 7.6% of stake Lewis William Chair and CEO Sold on a plan $1.79M 18 Dec 2025 · at $166.97 · 3.4% of stake Schaeffer Orlov S Nicole Chief People Strategy Officer Sold on a plan $15.29M 2 Jan 2026 · at $175.20 · 67.6% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $2.11M 5 Jan 2026 · at $171.38 · 11.5% of stake Smith Michael Alexander Chief Legal Officer Sold at will $241.97K 6 Jan 2026 · at $173.33 · 2.3% of stake Adsett Roger Chief Operating Officer Sold at will $247.69K 6 Jan 2026 · at $173.33 · 1.3% of stake Bonstein Sara Chief Financial Officer Sold at will $262.94K 6 Jan 2026 · at $173.33 · 1.8% of stake Lewis William Chair and CEO Sold at will $709.96K 6 Jan 2026 · at $173.33 · 1.3% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $1.77M 6 Jan 2026 · at $173.80 · 9.9% of stake Smith Michael Alexander Chief Legal Officer Sold at will $124.12K 7 Jan 2026 · at $175.07 · 1.2% of stake Adsett Roger Chief Operating Officer Sold at will $140.41K 7 Jan 2026 · at $175.07 · 0.7% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $252.15K 7 Jan 2026 · at $175.84 · 1.5% of stake Bonstein Sara Chief Financial Officer Sold at will $293.77K 7 Jan 2026 · at $175.07 · 2.0% of stake Lewis William Chair and CEO Sold at will $412.64K 7 Jan 2026 · at $175.07 · 0.7% of stake Smith Michael Alexander Chief Legal Officer Sold at will $183.40K 8 Jan 2026 · at $174.17 · 1.8% of stake Bonstein Sara Chief Financial Officer Sold at will $252.02K 8 Jan 2026 · at $174.17 · 1.8% of stake Adsett Roger Chief Operating Officer Sold at will $358.62K 8 Jan 2026 · at $174.17 · 1.9% of stake Lewis William Chair and CEO Sold at will $561.35K 8 Jan 2026 · at $174.17 · 1.0% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $854.85K 8 Jan 2026 · at $174.07 · 5.4% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $351.34K 9 Jan 2026 · at $186.19 · 2.2% of stake Lewis William Chair and CEO Sold on a plan $3.25M 12 Jan 2026 · at $169.00 · 5.9% of stake Lewis William Chair and CEO Sold on a plan $1.70M 20 Jan 2026 · at $158.93 · 3.4% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $1.23M 2 Feb 2026 · at $154.59 · 8.6% of stake Smith Michael Alexander Chief Legal Officer Sold at will $100.01K 3 Feb 2026 · at $156.27 · 1.1% of stake Bonstein Sara Chief Financial Officer Sold at will $116.94K 3 Feb 2026 · at $156.34 · 0.9% of stake Adsett Roger Chief Operating Officer Sold at will $123.53K 3 Feb 2026 · at $156.17 · 0.7% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $123.84K 3 Feb 2026 · at $155.77 · 0.9% of stake Lewis William Chair and CEO Sold at will $470.43K 3 Feb 2026 · at $156.34 · 1.0% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $132.47K 5 Feb 2026 · at $152.44 · 1.0% of stake Lewis William Chair and CEO Sold on a plan $1.98M 9 Feb 2026 · at $147.79 · 4.3% of stake Lewis William Chair and CEO Sold on a plan $1.62M 19 Feb 2026 · at $150.97 · 3.4% of stake Smith Michael Alexander Chief Legal Officer Sold on a plan $3.86M 24 Feb 2026 · at $155.77 · 32.3% of stake Lewis William Chair and CEO Sold on a plan $1.56M 5 Mar 2026 · at $146.03 · 3.4% of stake Lewis William Chair and CEO Sold on a plan $1.54M 19 Mar 2026 · at $143.52 · 3.4% of stake Smith Michael Alexander Chief Legal Officer Sold on a plan $2.96M 30 Mar 2026 · at $150.98 · 27.5% of stake Adsett Roger Chief Operating Officer Sold on a plan $14.50M 1 Apr 2026 · at $164.63 · 45.2% of stake Lewis William Chair and CEO Sold on a plan $1.75M 6 Apr 2026 · at $163.22 · 3.4% of stake Lewis William Chair and CEO Sold on a plan $1.54M 16 Apr 2026 · at $143.97 · 3.4% of stake Lewis William Chair and CEO Sold on a plan $1.47M 4 May 2026 · at $137.34 · 3.4% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $1.30M 11 May 2026 · at $100.40 · 13.5% of stake Smith Michael Alexander Chief Legal Officer Sold at will $477.38K 13 May 2026 · at $116.18 · 7.9% of stake Adsett Roger Chief Operating Officer Sold at will $678.14K 13 May 2026 · at $116.18 · 5.5% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $897.19K 13 May 2026 · at $114.23 · 9.4% of stake Bonstein Sara Chief Financial Officer Sold at will $961.04K 13 May 2026 · at $116.18 · 10.4% of stake Lewis William Chair and CEO Sold at will $1.54M 13 May 2026 · at $116.18 · 4.4% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $1.23M 14 May 2026 · at $117.54 · 13.9% of stake Lewis William Chair and CEO Sold on a plan $2.72M 18 May 2026 · at $106.33 · 8.6% of stake Smith Michael Alexander Chief Legal Officer Sold on a plan $666.98K 22 May 2026 · at $108.47 · 12.9% of stake Smith Michael Alexander Chief Legal Officer Sold at will $220.80K 3 Jun 2026 · at $102.27 · 5.2% of stake Adsett Roger Chief Operating Officer Sold at will $242.38K 3 Jun 2026 · at $102.27 · 2.3% of stake Bonstein Sara Chief Financial Officer Sold at will $245.86K 3 Jun 2026 · at $102.27 · 3.4% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $262.42K 3 Jun 2026 · at $102.27 · 4.0% of stake Lewis William Chair and CEO Sold at will $777.76K 3 Jun 2026 · at $102.27 · 2.8% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $192.82K 5 Jun 2026 · at $103.78 · 3.0% of stake Lewis William Chair and CEO Sold on a plan $612.61K 8 Jun 2026 · at $94.03 · 2.5% of stake Smith Michael Alexander Chief Legal Officer Sold on a plan $173.05K 22 Jun 2026 · at $95.82 · 4.6% of stake Lewis William Chair and CEO Sold on a plan $2.21M 25 Jun 2026 · at $103.32 · 7.6% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $1.35M 6 Jul 2026 · at $109.98 · 16.9% of stake Lewis William Chair and CEO Sold on a plan $1.26M 9 Jul 2026 · at $117.40 · 4.0% of stake Lewis William Chair and CEO Sold on a plan $1.13M 23 Jul 2026 · at $106.06 · 4.0% of stake Flammer Martina M.D. Chief Medical Officer Sold on a plan $3.49M 6 Aug 2026 · at $128.61 · 31.0% of stake Adsett Roger Chief Operating Officer Sold at will $31.96M 10 Aug 2026 · at $133.27 · 70.8% of stake SHAROKY MELVIN MD Director Sold at will $637.65K 17 Aug 2026 · at $127.53 · 100% of stake Brennan David R Director Sold at will $3.10M 9 Sep 2026 · at $124.00 · 38.9% of stake
0 buys32 sales at will40 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$606.42M
Net income
$1.28B
Free cash flow
$967.58M
Operating margin
-205.6%
Net margin
-210.5%
Return on equity
-172.8%
Return on capital
-65.5%
Debt to equity
1.04
Revenue growth, 1 yr
66.7%
Revenue growth, 5 yr
29.8% a year

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
164M -294M FY20 Fiscal year 2020 Revenue $164.41M Net income $294.09M Margin -178.9% 188M -435M FY21 Fiscal year 2021 Revenue $188.46M Net income $434.65M Margin -230.6% · growth +14.6% 245M -482M FY22 Fiscal year 2022 Revenue $245.36M Net income $481.53M Margin -196.3% · growth +30.2% 305M -750M FY23 Fiscal year 2023 Revenue $305.21M Net income $749.57M Margin -245.6% · growth +24.4% 364M -914M FY24 Fiscal year 2024 Revenue $363.71M Net income $913.77M Margin -251.2% · growth +19.2% 606M -1.3B FY25 Fiscal year 2025 Revenue $606.42M Net income $1.28B Margin -210.5% · growth +66.7%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
9 Sep 2026 Brennan David R
Director
Sold at will $3.10M 38.9%
17 Aug 2026 SHAROKY MELVIN MD
Director
Sold at will $637.65K 100%
10 Aug 2026 Adsett Roger
Chief Operating Officer
Sold at will $31.96M 70.8%
6 Aug 2026 Flammer Martina M.D.
Chief Medical Officer
Sold on a plan $3.49M 31.0%
23 Jul 2026 Lewis William
Chair and CEO
Sold on a plan $1.13M 4.0%
9 Jul 2026 Lewis William
Chair and CEO
Sold on a plan $1.26M 4.0%