Insmed Stock Price History
NASDAQ: INSMHealth CareBiotechnology: Pharmaceutical PreparationsUSD
100.60+0.12 (+0.12%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
INSM price history at a glance
The price history for Insmed (INSM) on this page begins on May 29, 2000, when the stock closed at $160.00; it most recently closed at $100.60 on October 5, 2026. The highest price in this record is $212.75, reached on December 1, 2025; the latest close is 52.7% below that peak. Across the 25 complete calendar years in the table, INSM finished higher in 12 and lower in 13. Its best year was 2003 (+518.4%) and its worst was 2002 (-87.1%).
Over roughly 26 years the share price changed -37.1%, a -1.7% compound annual price return (excluding dividends). In the last 12 months alone, INSM has lost 38.8%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2000
- $212.75
- Date of high
- Dec 1, 2025
- Low since 2000
- $2.64
- Date of low
- Nov 21, 2011
- 52-week high
- $212.75
- 52-week low
- $90.39
- Last close
- $100.60
INSM returns
1 week
-9.47%
1 month
-21.89%
3 months
-12.98%
6 months
-35.02%
Year to date
-42.20%
1 year
-38.81%
3 years
+306.30%
5 years
+279.77%
INSM price return, excluding dividends.
INSM annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 100.60 | -43.20% |
| 2025 | 177.12 | +153.54% |
| 2024 | 69.86 | +125.43% |
| 2023 | 30.99 | +55.11% |
| 2022 | 19.98 | -26.65% |
| 2021 | 27.24 | -18.17% |
| 2020 | 33.29 | +40.17% |
| 2019 | 23.75 | +59.93% |
| 2018 | 14.85 | -52.37% |
| 2017 | 31.18 | +135.68% |
| 2016 | 13.23 | -27.11% |
| 2015 | 18.15 | +13.72% |
| 2014 | 15.96 | -6.28% |
| 2013 | 17.03 | +152.30% |
| 2012 | 6.75 | +121.31% |
| 2011 | 3.05 | -51.59% |
| 2010 | 6.30 | -18.18% |
| 2009 | 7.70 | +57.14% |
| 2008 | 4.90 | -40.24% |
| 2007 | 8.20 | -6.82% |
| 2006 | 8.80 | -54.17% |
| 2005 | 19.20 | -12.73% |
| 2004 | 22.00 | -27.39% |
| 2003 | 30.30 | +518.37% |
| 2002 | 4.90 | -87.07% |
| 2001 | 37.90 | +9.26% |
| 2000* | 34.69 | -78.32% |
* Partial year: the record begins after the start of 2000; return measured from the first available close.
2026 return is year to date.
INSM daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 100.04 | 101.82 | 99.15 | 100.60 | +0.12% | |
| 100.66 | 101.05 | 96.68 | 100.48 | -1.24% | |
| 103.90 | 104.80 | 101.60 | 101.74 | -3.32% | |
| 103.97 | 107.87 | 101.32 | 105.23 | +1.35% | |
| 105.50 | 108.75 | 101.65 | 103.83 | -6.56% | |
| 107.76 | 111.54 | 105.68 | 111.12 | +2.33% | |
| 114.68 | 116.19 | 108.48 | 108.59 | -4.86% | |
| 115.65 | 116.43 | 113.60 | 114.14 | -1.29% | |
| 117.06 | 118.50 | 114.49 | 115.63 | -1.73% | |
| 116.83 | 119.32 | 116.31 | 117.67 | -0.14% | |
| 121.87 | 122.90 | 115.87 | 117.83 | -3.06% | |
| 119.26 | 121.69 | 118.38 | 121.55 | +2.71% | |
| 121.58 | 122.65 | 116.74 | 118.34 | -2.05% | |
| 121.00 | 122.48 | 119.09 | 120.82 | -0.15% | |
| 123.06 | 124.48 | 120.92 | 121.00 | +0.83% | |
| 123.89 | 124.11 | 119.32 | 120.00 | -3.21% | |
| 124.16 | 127.40 | 122.88 | 123.98 | +1.14% | |
| 120.00 | 124.41 | 119.55 | 122.58 | +2.22% | |
| 126.10 | 126.10 | 118.34 | 119.92 | -4.29% | |
| 129.50 | 130.78 | 124.58 | 125.30 | -3.18% | |
| 127.98 | 130.25 | 126.52 | 129.41 | +1.67% | |
| 127.22 | 128.85 | 124.29 | 127.28 | -1.18% | |
| 124.00 | 130.83 | 121.04 | 128.80 | +3.13% | |
| 124.78 | 127.42 | 121.38 | 124.89 | -1.11% | |
| 126.00 | 128.24 | 125.62 | 126.29 | -0.31% | |
| 126.70 | 127.09 | 124.05 | 126.68 | +0.04% | |
| 121.11 | 126.79 | 121.11 | 126.63 | +4.21% | |
| 121.95 | 122.19 | 119.52 | 121.51 | -0.25% | |
| 118.68 | 122.71 | 117.51 | 121.82 | +2.77% | |
| 120.11 | 120.66 | 117.15 | 118.54 | -2.35% | |
| 124.67 | 126.10 | 121.21 | 121.39 | -2.41% | |
| 122.89 | 125.59 | 121.64 | 124.39 | +0.40% | |
| 124.65 | 127.18 | 122.87 | 123.89 | -0.07% | |
| 125.03 | 126.11 | 122.83 | 123.98 | -1.42% | |
| 125.22 | 127.20 | 124.82 | 125.77 | +0.55% | |
| 128.36 | 130.27 | 124.60 | 125.08 | -4.27% | |
| 129.85 | 131.10 | 127.42 | 130.66 | +1.71% | |
| 128.07 | 128.93 | 126.39 | 128.46 | +0.11% | |
| 124.71 | 128.46 | 124.70 | 128.32 | +3.70% | |
| 125.67 | 126.85 | 122.21 | 123.74 | -2.05% | |
| 132.50 | 133.16 | 126.13 | 126.33 | -4.50% | |
| 132.31 | 135.26 | 130.80 | 132.28 | -0.22% | |
| 134.55 | 135.30 | 131.67 | 132.57 | -1.62% | |
| 129.98 | 135.50 | 129.50 | 134.75 | +2.78% | |
| 134.99 | 135.49 | 126.44 | 131.10 | -1.09% | |
| 128.22 | 137.70 | 126.15 | 132.55 | +33.86% | |
| 99.16 | 100.95 | 98.64 | 99.02 | +0.27% | |
| 98.98 | 99.48 | 97.86 | 98.75 | +0.30% | |
| 98.20 | 100.00 | 96.42 | 98.45 | -0.15% | |
| 101.25 | 101.91 | 97.05 | 98.60 | -2.85% | |
| 101.63 | 102.10 | 99.03 | 101.49 | -1.58% | |
| 103.98 | 106.26 | 102.81 | 103.12 | -0.97% | |
| 104.73 | 105.76 | 103.18 | 104.13 | -0.57% | |
| 106.93 | 107.37 | 104.50 | 104.73 | -2.05% | |
| 106.49 | 108.27 | 105.77 | 106.92 | -0.46% | |
| 105.80 | 107.88 | 105.09 | 107.41 | +0.72% | |
| 109.47 | 109.99 | 106.12 | 106.64 | -1.82% | |
| 107.87 | 109.42 | 106.41 | 108.62 | +1.50% | |
| 108.24 | 109.80 | 106.63 | 107.02 | -1.20% | |
| 105.20 | 110.58 | 105.20 | 108.32 | +0.80% | |
| 109.93 | 110.30 | 105.07 | 107.46 | -2.14% | |
| 111.00 | 111.60 | 108.34 | 109.81 | -0.27% | |
| 109.14 | 110.67 | 107.33 | 110.11 | +0.89% | |
| 114.25 | 115.55 | 108.02 | 109.14 | -5.60% | |
| 118.09 | 118.94 | 112.80 | 115.61 | -2.24% | |
| 116.44 | 119.54 | 116.01 | 118.26 | +1.48% | |
| 111.93 | 116.99 | 111.01 | 116.53 | +3.27% | |
| 113.21 | 114.69 | 111.47 | 112.84 | +1.17% | |
| 110.60 | 112.57 | 108.55 | 111.54 | -0.05% | |
| 107.50 | 111.92 | 107.06 | 111.60 | +4.30% | |
| 107.68 | 109.19 | 106.01 | 107.00 | +0.36% | |
| 105.84 | 108.67 | 104.64 | 106.62 | +1.79% | |
| 105.36 | 106.39 | 103.08 | 104.74 | +1.32% | |
| 105.11 | 108.14 | 102.59 | 103.38 | -1.04% | |
| 103.00 | 107.49 | 101.67 | 104.47 | +0.98% | |
| 103.40 | 107.20 | 102.31 | 103.46 | +1.28% | |
| 98.84 | 103.15 | 97.60 | 102.15 | +3.59% | |
| 95.82 | 99.88 | 95.27 | 98.61 | +2.93% | |
| 100.11 | 100.25 | 94.00 | 95.80 | -2.69% | |
| 95.18 | 99.15 | 94.22 | 98.45 | +3.07% | |
| 97.50 | 98.10 | 93.92 | 95.52 | -1.99% | |
| 98.85 | 100.17 | 97.04 | 97.46 | -0.40% | |
| 95.12 | 98.51 | 93.92 | 97.85 | +1.17% | |
| 92.30 | 98.18 | 91.37 | 96.72 | +5.27% | |
| 98.28 | 99.25 | 90.39 | 91.88 | -7.23% | |
| 95.75 | 99.55 | 95.43 | 99.04 | +5.17% | |
| 94.45 | 96.77 | 92.07 | 94.17 | -0.05% | |
| 103.78 | 105.00 | 92.81 | 94.22 | -10.20% | |
| 103.39 | 105.29 | 102.89 | 104.92 | +1.02% | |
| 102.27 | 105.20 | 101.73 | 103.86 | +0.13% | |
| 104.09 | 104.45 | 100.56 | 103.73 | -2.17% | |
| 106.09 | 106.79 | 102.81 | 106.03 | -0.82% | |
| 107.85 | 108.46 | 106.26 | 106.91 | -1.35% | |
| 106.90 | 109.95 | 106.10 | 108.37 | +1.85% | |
| 107.80 | 109.78 | 106.04 | 106.40 | -2.27% | |
| 107.82 | 109.74 | 105.00 | 108.87 | +2.48% | |
| 108.47 | 110.83 | 106.20 | 106.24 | -3.00% | |
| 107.55 | 110.96 | 106.56 | 109.53 | +1.50% | |
| 108.67 | 109.96 | 106.71 | 107.91 | +0.47% | |
| 107.81 | 109.75 | 105.01 | 107.41 | +0.24% | |
| 107.36 | 107.74 | 104.48 | 107.15 | -1.82% | |
| 114.30 | 114.51 | 108.22 | 109.14 | -5.60% | |
| 117.54 | 119.12 | 114.88 | 115.62 | -2.01% | |
| 117.50 | 122.94 | 112.00 | 117.99 | +1.72% | |
| 103.65 | 117.63 | 103.46 | 116.00 | +11.66% | |
| 100.00 | 108.20 | 98.90 | 103.89 | +2.51% | |
| 108.01 | 108.63 | 98.98 | 101.35 | -3.48% | |
| 116.91 | 125.36 | 103.50 | 105.00 | -23.41% | |
| 138.46 | 142.58 | 136.73 | 137.09 | -1.69% | |
| 140.86 | 142.90 | 138.41 | 139.44 | -0.41% | |
| 133.88 | 141.28 | 133.46 | 140.01 | +5.07% | |
| 135.65 | 137.62 | 132.39 | 133.26 | -2.25% | |
| 136.00 | 137.22 | 134.94 | 136.33 | +0.96% | |
| 134.42 | 136.98 | 132.77 | 135.03 | +0.07% | |
| 136.54 | 138.79 | 132.57 | 134.94 | -0.76% | |
| 135.58 | 139.54 | 135.18 | 135.98 | +0.60% | |
| 142.29 | 143.27 | 134.59 | 135.17 | -6.02% | |
| 144.48 | 145.43 | 142.06 | 143.83 | -0.45% | |
| 142.39 | 145.32 | 141.43 | 144.48 | +2.48% | |
| 142.42 | 144.07 | 139.59 | 140.98 | -1.29% | |
| 143.30 | 144.06 | 140.65 | 142.82 | -1.15% | |
| 144.25 | 145.62 | 143.28 | 144.48 | +1.18% | |
| 146.02 | 146.18 | 142.03 | 142.79 | -2.69% | |
| 154.57 | 154.58 | 146.25 | 146.74 | -4.34% | |
| 152.21 | 153.87 | 150.93 | 153.40 | +1.50% | |
| 154.81 | 156.64 | 148.51 | 151.14 | -2.37% | |
| 159.59 | 160.21 | 152.99 | 154.81 | -3.00% | |
| 159.15 | 160.49 | 157.75 | 159.59 | -0.37% | |
| 162.95 | 163.03 | 154.73 | 160.18 | -1.75% | |
| 162.82 | 164.03 | 159.53 | 163.03 | -0.48% | |
| 161.69 | 166.19 | 161.33 | 163.81 | +0.85% | |
| 161.51 | 164.53 | 157.52 | 162.43 | -1.47% | |
| 164.49 | 166.00 | 161.73 | 164.86 | +0.82% | |
| 153.95 | 164.22 | 153.95 | 163.52 | +6.65% | |
| 150.98 | 155.20 | 149.35 | 153.32 | +5.52% | |
| 147.98 | 149.20 | 142.59 | 145.30 | -1.56% | |
| 148.45 | 149.88 | 146.26 | 147.60 | -0.48% | |
| 140.00 | 148.86 | 139.00 | 148.31 | +6.59% | |
| 144.42 | 145.52 | 137.20 | 139.14 | -3.36% | |
| 147.12 | 149.76 | 141.64 | 143.98 | +5.87% | |
| 142.63 | 143.61 | 135.73 | 136.00 | -5.56% | |
| 144.01 | 144.88 | 141.80 | 144.00 | +0.91% | |
| 143.92 | 145.09 | 141.44 | 142.70 | -0.85% | |
| 144.50 | 147.38 | 143.59 | 143.93 | -0.46% | |
| 141.46 | 145.76 | 141.43 | 144.60 | +3.66% | |
| 140.66 | 141.78 | 138.01 | 139.50 | -0.01% | |
| 138.54 | 139.97 | 135.73 | 139.52 | +0.09% | |
| 143.02 | 144.36 | 139.05 | 139.40 | -3.09% | |
| 142.84 | 145.64 | 142.84 | 143.85 | +0.50% | |
| 139.68 | 143.74 | 138.82 | 143.13 | +2.14% | |
| 142.84 | 144.24 | 139.89 | 140.13 | -2.40% | |
| 148.04 | 148.07 | 142.04 | 143.57 | -4.21% | |
| 146.74 | 150.27 | 146.73 | 149.88 | +1.96% | |
| 145.83 | 148.31 | 143.76 | 147.00 | +0.46% | |
| 147.10 | 148.87 | 145.00 | 146.32 | -2.02% | |
| 150.00 | 151.11 | 147.57 | 149.33 | -0.45% | |
| 147.00 | 150.57 | 146.41 | 150.00 | +0.94% | |
| 159.74 | 161.13 | 148.24 | 148.61 | -6.31% | |
| 156.00 | 160.09 | 152.89 | 158.62 | -0.26% | |
| 163.60 | 167.00 | 157.71 | 159.03 | -3.57% | |
| 158.39 | 167.37 | 157.77 | 164.91 | +2.43% | |
| 153.78 | 163.14 | 147.26 | 161.00 | +6.54% | |
| 149.92 | 154.16 | 149.56 | 151.11 | +0.39% | |
| 147.93 | 152.35 | 147.93 | 150.52 | +1.19% | |
| 147.24 | 152.19 | 146.10 | 148.75 | +1.77% | |
| 148.55 | 148.75 | 142.99 | 146.17 | -1.52% | |
| 149.49 | 149.83 | 145.36 | 148.43 | -0.08% | |
| 149.77 | 151.17 | 147.63 | 148.55 | -0.66% | |
| 148.83 | 150.60 | 146.40 | 149.54 | -0.21% | |
| 153.06 | 155.79 | 149.34 | 149.86 | -0.77% | |
| 152.44 | 156.52 | 150.34 | 151.03 | -0.92% | |
| 157.10 | 157.90 | 150.79 | 152.44 | -3.00% | |
| 153.36 | 158.98 | 152.73 | 157.16 | +2.07% | |
| 156.63 | 156.86 | 150.80 | 153.98 | -1.84% | |
| 157.19 | 159.49 | 154.48 | 156.87 | -0.60% | |
| 154.48 | 159.89 | 154.48 | 157.82 | +1.24% | |
| 162.42 | 164.23 | 155.68 | 155.89 | -4.15% | |
| 161.15 | 165.47 | 161.13 | 162.64 | +1.83% | |
| 154.63 | 160.33 | 153.09 | 159.72 | +2.25% | |
| 160.02 | 160.08 | 154.23 | 156.21 | -2.61% | |
| 156.66 | 160.95 | 153.19 | 160.39 | +2.60% | |
| 163.00 | 163.96 | 156.08 | 156.32 | -4.40% | |
| 158.45 | 164.62 | 156.01 | 163.51 | +1.29% | |
| 160.35 | 163.98 | 158.39 | 161.42 | +1.35% | |
| 163.00 | 164.00 | 158.42 | 159.27 | -2.56% | |
| 163.83 | 164.96 | 160.45 | 163.46 | -0.16% | |
| 170.00 | 170.45 | 162.30 | 163.72 | -2.38% | |
| 174.86 | 175.12 | 165.28 | 167.72 | -4.69% | |
| 185.02 | 186.19 | 169.00 | 175.97 | +3.35% | |
| 174.17 | 175.00 | 168.01 | 170.27 | -3.26% | |
| 175.07 | 178.75 | 173.34 | 176.00 | +0.53% | |
| 173.33 | 175.41 | 170.94 | 175.07 | -0.07% | |
| 176.12 | 176.12 | 167.39 | 175.20 | -1.08% | |
| 175.79 | 177.90 | 173.55 | 177.12 | +1.77% | |
| 174.18 | 175.25 | 173.24 | 174.04 | -0.03% | |
| 175.79 | 176.52 | 173.48 | 174.09 | -1.28% | |
| 177.61 | 178.52 | 175.37 | 176.34 | -0.87% | |
| 178.90 | 179.44 | 176.67 | 177.88 | +0.26% | |
| 175.50 | 178.10 | 175.00 | 177.42 | +0.37% | |
| 174.17 | 177.60 | 172.65 | 176.77 | +0.57% | |
| 177.58 | 179.33 | 174.00 | 175.76 | +0.53% | |
| 168.30 | 178.21 | 166.71 | 174.84 | +4.98% | |
| 167.75 | 172.31 | 161.02 | 166.55 | -16.08% | |
| 200.05 | 205.23 | 198.07 | 198.46 | -1.10% | |
| 195.39 | 204.04 | 192.50 | 200.67 | +1.90% | |
| 197.23 | 201.13 | 194.75 | 196.92 | -0.05% | |
| 195.00 | 198.13 | 191.74 | 197.01 | +0.91% | |
| 190.24 | 195.36 | 189.77 | 195.24 | +2.84% | |
| 194.87 | 197.51 | 189.59 | 189.85 | -2.22% | |
| 194.50 | 198.40 | 193.29 | 194.17 | -1.21% | |
| 206.69 | 206.69 | 195.54 | 196.55 | -3.65% | |
| 204.68 | 206.56 | 203.15 | 204.00 | -0.51% | |
| 207.58 | 208.81 | 202.68 | 205.04 | -0.84% | |
| 206.60 | 207.61 | 203.33 | 206.78 | +0.09% | |
| 212.08 | 212.75 | 206.10 | 206.60 | -2.28% | |
| 206.80 | 212.58 | 205.00 | 211.41 | +1.75% | |
| 206.22 | 208.05 | 202.88 | 207.77 | +1.59% | |
| 208.49 | 209.00 | 202.27 | 204.51 | -2.16% | |
| 206.93 | 209.77 | 205.23 | 209.02 | +1.01% | |
| 202.43 | 208.72 | 199.52 | 206.93 | +4.11% | |
| 199.10 | 201.44 | 194.65 | 198.76 | -0.44% | |
| 204.35 | 208.00 | 199.00 | 199.64 | -1.93% | |
| 201.08 | 205.11 | 200.19 | 203.56 | +0.96% | |
| 195.80 | 203.65 | 195.51 | 201.62 | +2.14% | |
| 192.58 | 197.88 | 191.83 | 197.40 | +2.16% | |
| 188.09 | 197.45 | 187.55 | 193.22 | +1.18% | |
| 193.78 | 196.47 | 190.58 | 190.96 | -1.76% | |
| 192.61 | 196.33 | 191.90 | 194.39 | +0.36% | |
| 189.93 | 193.93 | 187.61 | 193.69 | +0.92% | |
| 189.67 | 192.39 | 185.69 | 191.92 | +1.17% | |
| 184.10 | 189.82 | 182.53 | 189.70 | +2.17% | |
| 186.77 | 188.45 | 183.81 | 185.68 | -0.64% | |
| 182.92 | 189.31 | 182.09 | 186.88 | +2.25% | |
| 185.28 | 187.88 | 182.58 | 182.77 | -1.86% | |
| 187.90 | 188.56 | 178.76 | 186.23 | -1.78% | |
| 194.57 | 197.08 | 187.02 | 189.60 | -2.38% | |
| 171.26 | 194.70 | 167.00 | 194.22 | +16.33% | |
| 166.48 | 167.78 | 163.82 | 166.95 | +1.00% | |
| 164.02 | 167.07 | 163.11 | 165.29 | +0.77% | |
| 162.05 | 164.14 | 160.53 | 164.02 | +2.73% | |
| 161.84 | 162.29 | 158.81 | 159.66 | -0.29% | |
| 159.41 | 160.30 | 154.79 | 160.12 | -0.17% | |
| 165.90 | 166.62 | 159.65 | 160.40 | -2.97% | |
| 166.90 | 168.09 | 162.80 | 165.31 | -1.55% | |
| 167.17 | 168.22 | 163.42 | 167.91 | +1.30% | |
| 163.80 | 166.04 | 161.19 | 165.76 | +1.57% | |
| 163.95 | 166.40 | 162.37 | 163.19 | -0.21% | |
| 162.20 | 165.76 | 161.65 | 163.54 | +1.34% | |
| 163.99 | 164.34 | 161.34 | 161.38 | -1.56% | |
| 163.22 | 166.44 | 162.08 | 163.94 | +0.99% | |
| 164.11 | 164.23 | 161.31 | 162.33 | -1.26% | |
| 162.16 | 164.58 | 161.03 | 164.40 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the INSM chart for longer ranges.