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INSMED Inc (INSM) stock

INSMNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 29, 2026Score 8/3083% above fair value
$112.58+0.99 (+0.89%)

Close on Oct 30, 2026Market cap $24.59BP/E –Yield –

Price history

Insmed share prices for every week, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$112.58
+0.89% on the day
52-week range
$90.39 – $212.75
-47.1% from the high
Change over 52 weeks
-42.0%
From $194.22 on Oct 30, 2025
Average volume
2.84M
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$93.44$116.37$92.87$112.58+20.55%27,783,178
Oct 19, 2026$96.27$97.88$92.63$93.39-2.99%14,820,551
Oct 12, 2026$98.82$100.72$95.76$96.27-4.30%12,337,625
Oct 5, 2026$105.50$108.75$96.68$100.60-9.47%19,972,302
Sep 28, 2026$116.83$119.32$105.68$111.12-5.69%13,065,853
Sep 21, 2026$123.06$124.48$115.87$117.83-1.81%11,045,572
Sep 14, 2026$129.50$130.78$118.34$120.00-7.27%11,446,527
Sep 8, 2026$124.78$130.83$121.04$129.41+2.47%8,740,118
Aug 31, 2026$118.68$128.24$117.51$126.29+6.54%9,496,836
Aug 24, 2026$125.03$127.18$117.15$118.54-5.75%8,728,474
Aug 17, 2026$124.71$131.10$124.60$125.77+1.64%7,553,804
Aug 10, 2026$129.98$135.50$122.21$123.74-5.61%12,358,878
Aug 3, 2026$98.20$137.70$96.42$131.10+32.96%29,678,040
Jul 27, 2026$106.93$107.37$97.05$98.60-7.78%12,307,055
Jul 20, 2026$108.24$109.99$105.09$106.92-1.29%9,895,859
Jul 13, 2026$114.25$115.55$105.07$108.32-6.31%11,547,479
Jul 6, 2026$110.60$119.54$108.55$115.61+3.59%12,840,921
Jun 29, 2026$105.36$111.92$103.08$111.60+7.95%11,275,512
Jun 22, 2026$95.82$108.14$95.27$103.38+7.91%22,277,296
Jun 15, 2026$98.85$100.25$93.92$95.80-2.10%34,064,706
Jun 8, 2026$94.45$99.55$90.39$97.85+3.85%24,311,567
Jun 1, 2026$106.09$106.79$92.81$94.22-11.87%18,548,606
May 26, 2026$107.82$109.95$105.00$106.91+0.63%12,134,184
May 18, 2026$107.36$110.96$104.48$106.24-2.66%16,594,391
May 11, 2026$100.00$122.94$98.90$109.14+7.69%29,351,365
May 4, 2026$133.88$142.90$98.98$101.35-23.95%27,728,734
Apr 27, 2026$135.58$139.54$132.39$133.26-1.41%6,861,363
Apr 20, 2026$143.30$145.43$134.59$135.17-6.44%8,135,882
Apr 13, 2026$154.81$156.64$142.03$144.48-6.67%9,827,824
Apr 6, 2026$161.69$166.19$152.99$154.81-4.69%9,952,260
Mar 30, 2026$150.98$166.00$149.35$162.43+11.79%13,294,618
Mar 23, 2026$147.12$149.88$137.20$145.30+6.84%14,873,855
Mar 16, 2026$141.46$147.38$135.73$136.00-2.51%12,589,833
Mar 9, 2026$139.68$145.64$135.73$139.50-0.45%7,880,671
Mar 2, 2026$147.10$150.27$139.89$140.13-6.16%11,381,193
Feb 23, 2026$163.60$167.00$146.41$149.33-9.45%12,101,452
Feb 17, 2026$147.93$167.37$147.26$164.91+10.86%12,932,263
Feb 9, 2026$148.83$152.19$142.99$148.75-0.74%10,704,974
Feb 2, 2026$156.63$158.98$149.34$149.86-4.47%11,405,179
Jan 26, 2026$154.63$165.47$153.09$156.87+0.42%10,366,010
Jan 20, 2026$158.45$164.62$153.19$156.21-3.23%10,806,622
Jan 12, 2026$174.86$175.12$158.39$161.42-8.27%16,479,442
Jan 5, 2026$176.12$186.19$167.39$175.97-0.65%14,314,543
Dec 29, 2025$177.61$178.52$173.24$177.12-0.43%7,745,983
Dec 22, 2025$177.58$179.44$172.65$177.88+1.74%6,147,365
Dec 15, 2025$197.23$205.23$161.02$174.84-11.25%44,850,502
Dec 8, 2025$206.69$206.69$189.59$197.01-3.43%12,514,847
Dec 1, 2025$206.80$212.75$202.68$204.00-1.81%9,817,862
Nov 24, 2025$202.43$209.77$199.52$207.77+4.53%21,003,323
Nov 17, 2025$192.58$208.00$191.83$198.76+2.87%10,842,209
Nov 10, 2025$189.67$197.45$185.69$193.22+1.86%10,161,005
Nov 3, 2025$187.90$189.82$178.76$189.70+0.05%10,819,110

Seasonality

INSM return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average5.9%4.3%-5.7%3.7%3.7%11.2%-0.9%2.0%17.0%-2.2%11.1%-3.5%
Months up5 of 105 of 102 of 105 of 103 of 108 of 105 of 106 of 106 of 104 of 107 of 93 of 9
2026-9.9%-4.8%9.5%-16.6%-21.6%-0.3%-7.5%23.5%-6.3%-1.4%
202510.9%6.5%-6.5%-5.6%-3.2%44.3%6.6%26.9%5.8%31.7%9.6%-16.2%
2024-10.3%-0.3%-2.1%-8.9%122.7%21.7%8.6%5.1%-4.5%-7.8%11.7%-8.1%
20237.8%-5.3%-16.3%14.4%-2.4%10.9%4.7%-0.9%15.3%-0.8%-0.2%23.9%
2022-16.7%5.4%-1.7%-6.5%-14.3%4.8%12.2%11.3%-12.5%-19.6%6.8%8.1%
202112.9%-4.8%-4.8%-1.0%-27.1%15.7%-13.6%14.0%-1.8%9.5%-8.7%-1.0%
2020-14.0%21.2%-35.6%43.5%5.6%13.4%-5.2%7.9%14.0%2.5%18.4%-14.7%
201985.3%22.0%-2.0%4.7%-20.5%5.7%-14.3%-25.1%7.3%5.4%24.0%3.6%
2018-18.4%-4.8%-7.0%8.0%14.5%-15.1%5.2%-19.9%1.5%-27.8%22.7%-26.7%
201711.6%7.9%9.9%5.4%-16.4%11.3%-5.8%-23.2%151.3%-13.5%15.5%-0.0%